16 Tube Fitting Brass

http://www.pisco.co.jp

FITTING CONTROLLER VALVE

TUBE

MAKE-TO-ORDER
PRODUCTS

Brass Push-In Fitting Type for Spatter-Proof 212

Tube Fitting Brass Series

●HNBR, FKM, NBR for Seal Rubber Selection

●Resistant to Flame and Weld Spatter

●Superior in Flame-Retardant and Spatter-Proof by its Brass Anti-spatter
Made Release-Ring ＆ Brass Series

●Avoiding Spatter and Dusts by Protective Cover Die Temperature
Control
●Optional Release-Ring Cover “CS” prevents Tiny Sparks
from penetrating into Fitting Minimal
Series
Optional release-ring cover keeps tiny sparks away from penetrating through the
gap between release-ring and tube. Stop Fitting
Series

Rotary
Series

Twist-Proof
Fitting

Block and
Connector

Coupling

Color
Cap

Fitting SeriesFITTING 01

Tube Fitting Brass Series
■ Model Designation (Example)

KC6

Tube Fitting Brass ⑤
Seal rubber material
① ④
Type Protective Cover option
③
② Thread size
Tube dia.

① Type Type Code Type Code Type Code Type
Code Straight OC Inner Hex. Straight L Elbow B Branch Tee
C Run Tee H U Union Straight V Union Elbow
D Union Tee Y Single Banjo M Bulkhead Union
E Union Y

② Tube dia. 4 mm size 12
Tube dia. ø4 ø12
Code 6 8 10
Size (mm) ø6 ø8 ø10

③ Thread size

213 Thread size Metric thread (mm) Taper pipe thread　

Standard Code M5 01 02 03 04
Series R1/8 R1/2
Size M5 × 0.8 R1/4 R3/8
Mini
Series ④ Protective Cover option with cover without cover
　No code：with cover
Stainless 　1：without cover
Series
⑤ Seal rubber material
Chemical 　No code：HNBR
Series 　F：FKM (option)
　N：NBR (option)
PP
Series

EG
Series

Anti-spatter
＆ Brass Series

■ Specifications

Fluid medium Air / Water ( ※ )
Max. operating pressure 1.0MPa
Max. vacuum -100kPa

Operating temp. range HNBR：0 ～ 100℃、FKM：0 ～ 120℃、NBR：0 ～ 60℃
(No freezing)

Warning
※ . Make sure to follow the instructions below when the fluid medium is water.

1. Surge pressure must be controlled lower than max. operating pressure when using water as a

fluid medium.

2. Be sure to place Insert Ring into the tube edge when using water as a fluid medium. There is

a possibility to cause the escape of tube and a fluid leakage without Insert Ring.

http://www.pisco.co.jp

■ Construction (Elbow: KL HNBR with cover) FITTING CONTROLLER VALVE

Tube End Lock-claws (Stainless steel)

Release ring (Nickel-plated brass)
Anti-spatter tube

O-ring (HNBR ※ )

Metalic body (Nickel-plated brass) Cover (Nickel-plated brass)

Elastic sleeve (HNBR ※ ) TUBE

Taper pipe thread: Heat-resistant Sealock - coating
Metric thread: With gasket

HNBR(SUS316+FKM)
FKM(SUS316+FKM)
NBR(SUS304+NBR)

※. FKM when selecting “F” for Seal rubber material, NBR when selecting “N”. MAKE-TO-ORDER
PRODUCTS

Detailed Safety Instructions

Before using PISCO products, be sure to read “Safety Instructions” and “Safety Instruction
Manual” on page 23 to 27 and “Common Safety Instructions for Fittings” on page 33 to 35.

Warning 214
1. When the fluid medium is water, do not use Tube Fitting Brass series unless the
Anti-spatter
operating environment meets all the described specifications in the catalog. Otherwise, ＆ Brass Series
it may cause damage to the products, the escape of tubes and a fluid leakage. Die Temperature
2. Tube fitting Brass Series has seal rubber material options, but there is no way to identify
between each material. Store each product properly not to mix up, after opening their Control
packages. Minimal
3. Thread body of some types in Tube Fitting Brass series is rotatable. Do not rotate Series
and swing it by force or continuously. It may cause damage to the products and a fluid Stop Fitting
leakage.
4. Select seal rubber material considering sufficient margin to the operating temperature Series
range. Seal rubber material can be worn out by heat and may cause a fluid leakage. Rotary
Perform maintenance periodically and in case leaks are found, replace the product to the Series
new one promptly. Twist-Proof
Fitting
Caution Block and
Connector
1. When using Anti-spatter Tube, peel the cover as the following table shows. It may cause Coupling

the escape of a tube, a fluid leakage or make it impossible to insert the tube into Push-

In Fitting, if the tube is not peeled properly.

Anti-spatter Tube C

Tube dia. ø 4mm ø 6mm ø 8mm ø 10mm ø 12mm
Peeled length (C) 15mm 16mm 17mm 19.5mm 23mm

Color
Cap

Fitting Series

Tube Fitting Brass Series

FITTING ■ Standard Size List

Connection: Thread ⇔ Tube

Type Page Thread size 4 Tube O.D. (mm) 12 Type Page Thread size 4 Tube O.D. (mm) 12
● 6 8 10 ● 6 8 10
KC Straight P.217 M5×0.8 ● ● ● KB Branch Tee P.223 M5×0.8 ● ● ●
R1/8 ● ●●● ● R1/8 ● ●●● ●
●●● ● R1/4 ●●● ●
R1/4 ● ●●● R3/8 ● ●●●
● ● R1/2 ● ●
R3/8 ● ● ● ● ● ●
● ● KD Run Tee P.225 M5×0.8 ● ●
R1/2 ● ●●● R1/8 ● ●●●
● ●●● ● R1/4 ● ●●● ●
KOC Inner Hex. Straight P.219 M5×0.8 ● ●●● ● R3/8 ●●● ●
R1/8 ● R1/2
● ●
R1/4 ● KH Single Banjo P.227 M5×0.8 ●
●●● R1/8 ●●
R3/8 ●●● R1/4 ●●●
●●● R3/8 ●●●
R1/2 R1/2
● ●
KL Elbow P.221 M5×0.8
R1/8

R1/4

R3/8

R1/2

Connection: Tube ⇔ Tube (Equal dia.)

Type Page 4 Tube O.D. (mm) 12 Type Page 4 Tube O.D. (mm) 12
● 6 8 10 6 8 10 ●
● ●
KU Union Straight P.229 ● ● ● ● ● KM Bulkhead Union P.232 ● ●●●
KV Union Elbow P.230 ● ● ● ● KY Union Y P.233 ●
KE Union Tee P.231 ●●●

●●●●

215 ■ How to insert and disconnect
1. How to insert and disconnect tubes
Standard
Series ① Tube insertion
　Insert a tube into Push-In Fitting Brass series up to the tube end. Lock-claws
Mini
Series bite the tube and fix it automatically, then the elastic sleeve seals around the
tube.
Stainless 　Refer to “2. Instructions for Tube Insertion” under “Common Safety Instructions
Series for Fittings”.

Chemical ② Tube disconnection
Series 　The tube is disconnected by pushing release-ring to release Lock-claws.
　Make sure to stop air supply before the tube disconnection.
PP
Series

EG
Series

Anti-spatter
＆ Brass Series

2. How to tighten thread Hexagonal-column Inner hexagonal socket

① Tightening thread
　There are two ways to tighten thread. Use a spanner or

an impact wrench for a hexagonal-column. A hex key is
for an inner hexagonal socket. Inner hex type can save
spaces.
　Refer to “Table 2: Recommended tightening torque /
Sealock color / Gasket materials” under “4. Instructions
for Installing a fitting” in “Common Safety Instructions for
Fittings”.

http://www.pisco.co.jp

3. How to install Release-ring cover FITTING CONTROLLER VALVE
　Attach the cover on release-ring of Brass Series and insert a tube.

TUBE

MAKE-TO-ORDER
PRODUCTS

■ Applicable Tube and Related Products 216
Anti-spatter Tube………P.646
Tube Fitting Anti-spatter Series………P.204 Anti-spatter
Speed Controller Anti-spatter………P.422 ＆ Brass Series
Speed Controller Brass………P.430 Die Temperature
Throttle (Needle) Valve Brass………P.474
Control
Minimal
Series
Stop Fitting

Series
Rotary
Series
Twist-Proof
Fitting
Block and
Connector
Coupling
Color
Cap

Fitting SeriesFITTING øP øP OP.
øD2 øD2
Tube Fitting Brass Series P.754
KC Straight øD1 øD1

compliant

HH
B C2 B C2
L C1 L C1

A 0.6

RR
(A)
Taper pipe thread M5 Thread
Unit：mm

Model code Tube O.D. Tube O.D. R øP B Tube end Tube end A L Hex. Orifice dia. Effective area Weight
øD1 øD2 C1 C2 H (mm2) (g)

KC4-M5- □ M5×0.8
KC4-01- □
KC4-02- □ 4 6 R1/8
KC6-M5- □ 6
KC6-01- □ R1/4
KC6-02- □
KC6-03- □ M5×0.8

8 R1/8
R1/4

R3/8

KC8-01- □ R1/8

KC8-02- □ 8 10 R1/4

KC8-03- □ R3/8

KC10-01- □ R1/8

KC10-02- □ 10 12 R1/4
KC10-03- □ 12 R3/8
KC10-04- □
217 KC12-02- □ R1/2
KC12-03- □
Standard KC12-04- □ R1/4
Series
14 R3/8
Mini
Series R1/2

Stainless ※ 1. “L” is a reference value for height dimension after tightening taper thread.
Series ※ 2. □ in Model code / Replaced with “N”(NBR), or “F”(FKM) for Seal rubber material change

Chemical
Series

PP
Series

EG
Series

Anti-spatter
＆ Brass Series

OP. Page for special specifications CAD CAD data is available at PISCO website.

P.000

http://www.pisco.co.jp

KC Straight without cover OP. FITTING CONTROLLER VALVE

NO COVER P.754

compliant øP øP
øD øD
H
H
B
L
A
C
B
L
(A) 0.5
C
RR

Taper pipe thread M5 Thread Unit：mm

Model code Tube O.D. R øP B Tube end A L Hex. Orifice dia. Effective area Weight TUBE
øD C H (mm2) (g)

KC4-M5-1- □ M5 × 0.8
KC4-01-1- □
KC4-02-1- □ 4 R1/8
KC6-M5-1- □
KC6-01-1- □ R1/4
KC6-02-1- □
KC6-03-1- □ M5 × 0.8

6 R1/8 MAKE-TO-ORDER
R1/4 PRODUCTS

R3/8

KC8-01-1- □ R1/8

KC8-02-1- □ 8 R1/4

KC8-03-1- □ R3/8

KC10-01-1- □ R1/8

KC10-02-1- □ 10 R1/4 218
KC10-03-1- □ 12 R3/8
KC10-04-1- □ R1/2
KC12-02-1- □ R1/4
KC12-03-1- □ R3/8
KC12-04-1- □ R1/2

※ 1. “L” is a reference value for height dimension after tightening taper thread.
※ 2. □ in Model code / Replaced with “N”(NBR), or “F”(FKM) for Seal rubber material change

Anti-spatter
＆ Brass Series

Die Temperature
Control

Minimal
Series

Stop Fitting
Series

Rotary
Series

Twist-Proof
Fitting

Block and
Connector

Coupling

Color
Cap

OP. Page for special specifications CAD CAD data is available at PISCO website.

P.000

Fitting SeriesFITTING OP.

Tube Fitting Brass Series H P.754
KOC Inner Hex. Straight
øP øP
compliant øD2 øD2

øP øD1 øD1
øD2

øD1

B C2 C2 B C2
L C1 C1 L C1
B
A L 0.5
A
R R R

KOC4-02, KOC6-02, KOC6-03 (A)
KOC8-03, KOC10-04, KOC12-03
M5 Thread Unit：mm
KOC12-04

Model code Tube O.D. Tube O.D. R øP B Tube end Tube end A L Hex. Orifice dia. Effective area Weight
øD1 øD2 C1 C2 H (mm2) (g)

KOC4-M5- □ M5×0.8

KOC4-01- □ 4 6 R1/8

KOC4-02- □ R1/4
KOC6-M5- □
KOC6-01- □ M5×0.8
KOC6-02- □
KOC6-03- □ 6 8 R1/8
KOC8-01- □ 8 R1/4
KOC8-02- □
KOC8-03- □ R3/8

R1/8

219 10 R1/4

Standard R3/8
Series
KOC10-01- □ R1/8
Mini
Series KOC10-02- □ 10 12 R1/4
KOC10-03- □ R3/8
Stainless
Series KOC10-04- □ R1/2

Chemical KOC12-02- □ R1/4
Series
KOC12-03- □ 12 14 R3/8
PP
Series KOC12-04- □ R1/2

EG ※ 1. “L” is a reference value for height dimension after tightening taper thread.
Series ※ 2. □ in Model code / Replaced with “N”(NBR), or “F”(FKM) for Seal rubber material change

Anti-spatter
＆ Brass Series

OP. Page for special specifications CAD CAD data is available at PISCO website.

P.000

KOC Inner Hex. Straight without cover http://www.pisco.co.jp FITTING CONTROLLER VALVE

NO COVER OP.
compliant
P.754
H
øP øP øP
øD øD øD

B R
L

A
C
B
L

A
C
B
L

(A) 0.5
C
R R

KOC4-02-1, KOC6-02-1 M5 Thread TUBE
KOC6-03-1, KOC8-03-1
KOC10-04-1, KOC12-03-1 Unit：mm

KOC12-04-1

Model code Tube O.D. R øP B Tube end A L Hex. Orifice dia. Effective area Weight
øD C H (mm2) (g)

KOC4-M5-1- □ M5 × 0.8 MAKE-TO-ORDER
PRODUCTS
KOC4-01-1- □ 4 R1/8

KOC4-02-1- □ R1/4
KOC6-M5-1- □
KOC6-01-1- □ M5 × 0.8
KOC6-02-1- □
KOC6-03-1- □ 6 R1/8
KOC8-01-1- □ R1/4
KOC8-02-1- □
KOC8-03-1- □ R3/8

R1/8

8 R1/4 220

R3/8

KOC10-01-1- □ R1/8

KOC10-02-1- □ 10 R1/4
KOC10-03-1- □ R3/8

KOC10-04-1- □ R1/2

KOC12-02-1- □ R1/4

KOC12-03-1-□ 12 R3/8

KOC12-04-1- □ R1/2

※ 1. “L” is a reference value for height dimension after tightening taper thread.
※ 2. □ in Model code / Replaced with “N”(NBR), or “F”(FKM) for Seal rubber material change

Anti-spatter
＆ Brass Series

Die Temperature
Control

Minimal
Series

Stop Fitting
Series

Rotary
Series

Twist-Proof
Fitting

Block and
Connector

Coupling

Color
Cap

OP. Page for special specifications CAD CAD data is available at PISCO website.

P.000

FITTINGFitting Series E OP.
C1 E P.754
Tube Fitting Brass Series C2 C1
KL Elbow C2
øD1 øD1
compliant øD2 øD2

B H øP H øP
L R B R
Metric thread
0.5 L Taper pipe thread
A

A

Unit：mm

Model code Tube O.D. Tube O.D. R A B L øP Tube end Tube end E Hex. Orifice dia. Weight Effective area
øD1 øD2 C1 C2 H (g) (mm2)

KL4-M5- □ M5×0.8
KL4-01- □
KL4-02- □ 4 6 R1/8
KL6-M5- □ 6
KL6-01- □ R1/4
KL6-02- □
KL6-03- □ M5 × 0.8
KL8-01- □
8 R1/8
R1/4

R3/8

R1/8

KL8-02- □ 8 10 R1/4

KL8-03- □ R3/8

KL10-01- □ R1/8

KL10-02- □ 10 12 R1/4
KL10-03- □ R3/8
221
KL10-04- □ R1/2
Standard
Series KL12-02- □ 12 R1/4
KL12-03- □ 14 R3/8
Mini KL12-04- □
Series R1/2

Stainless ※ 1. “L” is a reference value for height dimension after tightening taper thread.
Series ※ 2. □ in Model code / Replaced with “N”(NBR), or “F”(FKM) for Seal rubber material change

Chemical
Series

PP
Series

EG
Series

Anti-spatter
＆ Brass Series

OP. Page for special specifications CAD CAD data is available at PISCO website.

P.000

KL Elbow without cover http://www.pisco.co.jp FITTING CONTROLLER VALVE

NO COVER OP.

compliant E P.754
C
E
C
øD øD
øP øP
B
B L
L A
HH
0.5 RR

A

Metric thread Taper pipe thread Unit：mm

Model code Tube O.D. R A B L øP Tube end E Hex. Orifice dia. Weight Effective area TUBE
øD C H (g) (mm2)

KL4-M5-1- □ M5 × 0.8

KL4-01-1- □ 4 R1/8

KL4-02-1- □ R1/4

KL6-M5-1- □ M5 × 0.8

KL6-01-1- □ 6 R1/8 MAKE-TO-ORDER
KL6-02-1- □ R1/4 PRODUCTS

KL6-03-1- □ R3/8

KL8-01-1- □ R1/8

KL8-02-1- □ 8 R1/4

KL8-03-1- □ R3/8

KL10-01-1- □ R1/8

KL10-02-1- □ 10 R1/4
KL10-03-1- □ R3/8
222
KL10-04-1- □ R1/2

KL12-02-1- □ 12 R1/4
KL12-03-1- □ R3/8
KL12-04-1- □ R1/2

※ 1. “L” is a reference value for height dimension after tightening taper thread.
※ 2. □ in Model code / Replaced with “N”(NBR), or “F”(FKM) for Seal rubber material change

Anti-spatter
＆ Brass Series

Die Temperature
Control

Minimal
Series

Stop Fitting
Series

Rotary
Series

Twist-Proof
Fitting

Block and
Connector

Coupling

Color
Cap

OP. Page for special specifications CAD CAD data is available at PISCO website.

P.000

Fitting SeriesFITTING E2 E2 OP.
E1 E1
Tube Fitting Brass Series 2-C1 2-C1 P.754
KB Branch Tee 2-C2 2-C2
2-øD1 2-øD1
compliant 2-øP 2-øD2

B H 2-øD2 H 2-øP
L R B R
L
0.5
A

A

Metric thread Taper pipe thread

Unit：mm

Model code Tube O.D. Tube O.D. R A B L E1 E2 øP Tube end Tube end Hex. Orifice dia. Weight Efective area
øD1 øD2 C1 C2 H (g) (mm2)

KB4-M5- □ M5×0.8

KB4-01- □ 4 6 R1/8

KB4-02- □ R1/4

KB6-M5- □ M5×0.8

KB6-01- □ 6 8 R1/8
KB6-02- □ R1/4

KB6-03- □ R3/8

KB8-01- □ R1/8

KB8-02- □ 8 10 R1/4

KB8-03- □ R3/8

KB10-01- □ R1/8

223 KB10-02- □ 10 12 R1/4
KB10-03- □ R3/8
Standard
Series KB10-04- □ R1/2

Mini KB12-02- □ R1/4
Series
KB12-03- □ 12 14 R3/8
Stainless
Series KB12-04- □ R1/2

Chemical ※ 1. “L” is a reference value for height dimension after tightening taper thread.
Series ※ 2. □ in Model code / Replaced with “N”(NBR), or “F”(FKM) for Seal rubber material change

PP
Series

EG
Series

Anti-spatter
＆ Brass Series

OP. Page for special specifications CAD CAD data is available at PISCO website.

P.000

KB Branch Tee without cover http://www.pisco.co.jp FITTING CONTROLLER VALVE

NO COVER E2 OP.
E1
2-C P.754

E2

compliant E1 2-øD 2-øD
2-øP
2-C

B H 2-øP H
L R B R
L
0.5
A

A

Metric thread Taper pipe thread

Unit：mm

Model code Tube O.D. R A B L E1 E2 øP Tube end Hex. Orifice dia. Weight Effective area TUBE
øD C H (g) (mm2)

KB4-M5-1- □ M5 × 0.8

KB4-01-1- □ 4 R1/8

KB4-02-1- □ R1/4

KB6-M5-1- □ M5 × 0.8

KB6-01-1- □ 6 R1/8 MAKE-TO-ORDER
KB6-02-1- □ R1/4 PRODUCTS

KB6-03-1- □ R3/8

KB8-01-1- □ R1/8

KB8-02-1- □ 8 R1/4

KB8-03-1- □ R3/8

KB10-01-1- □ R1/8

KB10-02-1- □ 10 R1/4 224
KB10-03-1- □ R3/8

KB10-04-1- □ R1/2

KB12-02-1- □ R1/4

KB12-03-1- □ 12 R3/8

KB12-04-1- □ R1/2

※ 1. “L” is a reference value for height dimension after tightening taper thread.
※ 2. □ in Model code / Replaced with “N”(NBR), or “F”(FKM) for Seal rubber material change

Anti-spatter
＆ Brass Series

Die Temperature
Control

Minimal
Series

Stop Fitting
Series

Rotary
Series

Twist-Proof
Fitting

Block and
Connector

Coupling

Color
Cap

OP. Page for special specifications CAD CAD data is available at PISCO website.

P.000

Fitting SeriesFITTING E E OP.
2-C1 2-C1
Tube Fitting Brass Series 2-C2 2-C2 P.754
KD Run Tee
2-øD1 2-øD1
compliant 2-øP 2-øD2

B 2-øD2 B 2-øP
L1 L1
L2 L2
0.5 HH
RR
A A

Metric thread Taper pipe thread Unit：mm

Model code Tube O.D. Tube O.D. R A B L1 L2 øP Tube end Tube end E Hex. Orifice dia. Weight Efective area
øD1 øD2 C1 C2 H (g) (mm2)

KD4-M5- □ M5×0.8

KD4-01- □ 4 6 R1/8

KD4-02- □ R1/4

KD6-M5- □ M5×0.8

KD6-01- □ 6 8 R1/8
KD6-02- □ R1/4

KD6-03- □ R3/8

KD8-01- □ R1/8

KD8-02- □ 8 10 R1/4

KD8-03- □ R3/8

KD10-01- □ R1/8

225 KD10-02- □ 10 12 R1/4
KD10-03- □ R3/8
Standard
Series KD10-04- □ R1/2

Mini KD12-02- □ R1/4
Series
KD12-03- □ 12 14 R3/8
Stainless
Series KD12-04- □ R1/2

Chemical ※ 1. “L1” and “L2” are reference values for height dimensions after tightening taper thread.
Series ※ 2. □ in Model code / Replaced with “N”(NBR), or “F”(FKM) for Seal rubber material change

PP
Series

EG
Series

Anti-spatter
＆ Brass Series

OP. Page for special specifications CAD CAD data is available at PISCO website.

P.000

KD Run Tee without cover E http://www.pisco.co.jp FITTING CONTROLLER VALVE
2-C
NO COVER OP.

P.754

E

compliant 2-C 2-øD 2-øD
2-øP
B B
L1 2-øP L1
L2 L2
0.5 HH
RR
A A

Metric thread Taper pipe thread

Unit：mm

Model code Tube O.D. R A B L1 L2 øP Tube end E Hex. Orifice dia. Weight Effective area TUBE
øD C H (g) (mm2)

KD4-M5-1- □ M5 × 0.8

KD4-01-1- □ 4 R1/8

KD4-02-1- □ R1/4

KD6-M5-1- □ M5 × 0.8

KD6-01-1- □ 6 R1/8 MAKE-TO-ORDER
KD6-02-1- □ R1/4 PRODUCTS

KD6-03-1- □ R3/8

KD8-01-1- □ R1/8

KD8-02-1- □ 8 R1/4

KD8-03-1- □ R3/8

KD10-01-1- □ R1/8

KD10-02-1- □ 10 R1/4 226
KD10-03-1- □ R3/8

KD10-04-1- □ R1/2

KD12-02-1- □ R1/4

KD12-03-1- □ 12 R3/8

KD12-04-1- □ R1/2

※ 1. “L1” and “L2” are reference values for height dimensions after tightening taper thread.
※ 2. □ in Model code / Replaced with “N”(NBR), or “F”(FKM) for Seal rubber material change

Anti-spatter
＆ Brass Series

Die Temperature
Control

Minimal
Series

Stop Fitting
Series

Rotary
Series

Twist-Proof
Fitting

Block and
Connector

Coupling

Color
Cap

OP. Page for special specifications CAD CAD data is available at PISCO website.

P.000

FITTINGFitting Series OP.

Tube Fitting Brass Series P.754

KH Single Banjo

compliant E E

H C1 øD1 C1 øD1
C2 øD2 H C2 øD2
øP1 øP1
B B
L1 L1
L2 L2
0.5

A øP2 R A R
øP2

Metric thread Taper pipe thread

Unit：mm

Model code Tube O.D. Tube O.D. R A B L1 L2 E Tube end Tube end øP1 øP2 Hex. Weight Efective area
øD1 øD2 C1 C2 H (g) (mm2)

KH4-M5- □ 4 6 M5 × 0.8
KH4-01- □ R1/8

KH6-M5- □ M5 × 0.8

KH6-01- □ 6 8 R1/8
KH6-02- □ R1/4

KH6-03- □ R3/8

KH8-01- □ R1/8

KH8-02- □ 8 10 R1/4

KH8-03- □ R3/8

KH10-02- □ R1/4

KH10-03- □ 10 12 R3/8

227 KH10-04- □ R1/2

Standard KH12-03- □ 12 14 R3/8
Series KH12-04- □ R1/2

Mini ※ 1. “L1” and “L2” are reference values for height dimensions after tightening taper thread.
Series ※ 2. □ in Model code / Replaced with “N”(NBR), or “F”(FKM) for Seal rubber material change

Stainless
Series

Chemical
Series

PP
Series

EG
Series

Anti-spatter
＆ Brass Series

OP. Page for special specifications CAD CAD data is available at PISCO website.

P.000

http://www.pisco.co.jp

KH Single Banjo without cover ￥ OP. FITTING CONTROLLER VALVE

NO COVER P.709 P.754

compliant E E
HC HC

B øD øD
L1 øP1 øP1
L2 B
0.5 L1
L2
A øP2 R A R
Metric thread øP2
Taper pipe thread

Unit：mm TUBE

Model code Tube O.D. R A B L1 L2 E Tube endC øP1 øP2 Hex. Weight Effective area
øD H (g) (mm2)

KH4-M5-1- □ 4 M5 × 0.8
KH4-01-1- □ R1/8

KH6-M5-1- □ M5 × 0.8

KH6-01-1- □ 6 R1/8 MAKE-TO-ORDER
KH6-02-1- □ R1/4 PRODUCTS

KH6-03-1- □ R3/8

KH8-01-1- □ R1/8

KH8-02-1- □ 8 R1/4

KH8-03-1- □ R3/8

KH10-02-1- □ R1/4

KH10-03-1- □ 10 R3/8

KH10-04-1- □ R1/2 228

KH12-03-1- □ 12 R3/8
KH12-04-1- □ R1/2

※ 1. “L1” and “L2” are reference values for height dimensions after tightening taper thread.
※ 2. □ in Model code / Replaced with “N”(NBR), or “F”(FKM) for Seal rubber material change

Anti-spatter
＆ Brass Series

Die Temperature
Control

Minimal
Series

Stop Fitting
Series

Rotary
Series

Twist-Proof
Fitting

Block and
Connector

Coupling

Color
Cap

OP. Page for special specifications CAD CAD data is available at PISCO website.

P.000

Fitting Series ￥ OP.

Tube Fitting Brass Series P.710 P.754
KU Union Straight

compliant
FITTING B

2-øD1
2-øD2
2-øP

2-C2
2-C1

Unit：mm

Model code Tube O.D. Tube O.D. øP B Tube end Tube end Orifice Effective area Weight
øD1 øD2 C1 C2 dia.
(mm2) (g)

KU4- □ 46

KU6- □ 68

KU8- □ 8 10

KU10- □ 10 12

KU12- □ 12 14

※ . □ in Model code / Replaced with “N” (NBR), or “F” (FKM) for Seal rubber material change

229

Standard KU Union Straight without cover ￥ OP.
Series
NO COVER P.710 P.754
Mini
Series compliant B 2-øD
2-øP
Stainless
Series 2-C Unit：mm

Chemical Model code Tube O.D. øP B Tube end Orifice dia. Effective area Weight
Series øD C (mm2) (g)

PP KU4-1- □ 4
Series
KU6-1- □ 6
EG KU8-1- □ 8
Series KU10-1- □ 10
KU12-1- □ 12
Anti-spatter
＆ Brass Series

※ . □ in Model code / Replaced with “N” (NBR), or “F” (FKM) for Seal rubber material change

OP. Page for special specifications CAD CAD data is available at PISCO website.

P.000

http://www.pisco.co.jp

KV Union Elbow 2-E 2-øD1 ￥ OP. FITTING CONTROLLER VALVE
2-C1 2-øD2
compliant 2-C2 2-øP P.710 P.754

Unit：mm

Model code Tube O.D. Tube O.D. øP Tube end Tube end E Orifice Effective area Weight
øD1 øD2 C1 C2 dia.
(mm2) (g)

KV4- □ 46

KV6- □ 68 TUBE

KV8- □ 8 10

KV10- □ 10 12

KV12- □ 12 14

※ . □ in Model code / Replaced with “N” (NBR), or “F” (FKM) for Seal rubber material change

MAKE-TO-ORDER
PRODUCTS

230

KV Union Elbow without cover ￥ OP.

NO COVER E P.710 P.754

compliant 2-C 2-øD
2-øP

Model code Tube O.D. øP Tube end E Orifice dia. Effective area Unit：mm
øD C (mm2) Weight

KV4-1- □ 4 (g)

KV6-1- □ 6 Anti-spatter
＆ Brass Series
KV8-1- □ 8
KV10-1- □ 10 Die Temperature
KV12-1- □ 12 Control

※ . □ in Model code / Replaced with “N” (NBR), or “F” (FKM) for Seal rubber material change Minimal
Series

Stop Fitting
Series

Rotary
Series

Twist-Proof
Fitting

Block and
Connector

Coupling

Color
Cap

OP. Page for special specifications CAD CAD data is available at PISCO website.

P.000

Fitting Series E2 ￥ OP.
E1
Tube Fitting Brass Series P.710 P.754
KE Union Tee 3-C1
3-C2
compliant
FITTING

B
3-øP

3-øD1 Unit：mm
3-øD2

Model code Tube O.D. Tube O.D. øP B Tube end Tube end E1 E2 Orifice dia. Effective area Weight
øD1 øD2 C1 C2 (mm2) (g)

KE4- □ 46
KE6- □ 68
KE8- □ 8 10
KE10- □ 10 12
KE12- □ 12 14

※ . □ in Model code / Replaced with “N” (NBR), or “F” (FKM) for Seal rubber material change

231

Standard KE Union Tee without cover ￥ OP.
Series
NO COVER P.710 P.754
Mini
Series compliant E2
E1
Stainless 3-C
Series B
3-øD
Chemical
Series 3-øP

PP Unit：mm
Series
Model code Tube O.D. øP B Tube end E1 E2 Orifice dia. Effective area Weight
EG øD C (mm2) (g)
Series
KE4-1- □ 4
Anti-spatter KE6-1- □ 6
＆ Brass Series KE8-1- □ 8
KE10-1- □ 10
KE12-1- □ 12

※ . □ in Model code / Replaced with “N” (NBR), or “F” (FKM) for Seal rubber material change

OP. Page for special specifications CAD CAD data is available at PISCO website.

P.000

http://www.pisco.co.jp

KM Bulkhead Union B ￥ OP. FITTING CONTROLLER VALVE
AE
compliant 2-G P.710 P.754

2-øD1
2-øD2
2-øP

2-H 2-C2 Unit：mm
M 2-C1

Model code Tube O.D. Tube O.D. øP M B Tube end Tube end A E Hex. G Orifice dia. Effective area Weight
øD1 øD2 C1 C2 H (mm2) (g)

KM4- □ 46 × TUBE
KM6- □ 68 ×
KM8- □ 8 10 ×
KM10- □ 10 12 ×
KM12- □ 12 14 ×

※ . □ in Model code / Replaced with “N” (NBR), or “F” (FKM) for Seal rubber material change

MAKE-TO-ORDER
PRODUCTS

232

KM Bulkhead Union without cover ￥ OP.
B
NO COVER P.710 P.754

compliant AE
2-G
øP2
2-øD

øP1

2-H 2-C Unit：mm
M

Model code Tube O.D. øP1 øP2 M B Tube end A E Hex. G Orifice dia. Effective area Weight
øD C H (mm2) (g)

KM4-1- □ 4 × Anti-spatter
KM6-1- □ 6 × ＆ Brass Series
KM8-1- □ 8 ×
KM10-1- □ 10 × Die Temperature
KM12-1- □ 12 × Control

Minimal
Series

※ . □ in Model code / Replaced with “N” (NBR), or “F” (FKM) for Seal rubber material change Stop Fitting
Series

Rotary
Series

Twist-Proof
Fitting

Block and
Connector

Coupling

Color
Cap

OP. Page for special specifications CAD CAD data is available at PISCO website.

P.000

FITTINGFitting Series B OP.
F 3-C1
Tube Fitting Brass Series P.754
KY Union Y 3-C2
E
compliant 2-øP2
J
ød Unit：mm
øD1
øD2

øP1

Model code Tube O.D. Tube O.D. B øP1 øP2 Tube end Tube end E J ød F Weight Effective area
øD1 øD2 C1 C2 (g) (mm2)

KY4- □ 46

KY6- □ 68

KY8- □ 8 10

KY10- □ 10 12
KY12- □ 12 14

※ 1. □ in Model code / Replaced with “N”(NBR), or “F”(FKM) for Seal rubber material change

KY Union Y without cover B OP.
F
NO COVER P.754
C
compliant
E
2-øP2
J

øD
øP1

ød Unit：mm

Model code Tube O.D. B øP1 øP2 Tube end E J ød F Weight Effective area
øD C (g) (mm2)
233
KY4-1- □ 4
Standard
Series KY6-1- □ 6
KY8-1- □ 8
Mini KY10-1- □ 10
Series KY12-1- □ 12

Stainless ※ 1. □ in Model code / Replaced with “N”(NBR), or “F”(FKM) for Seal rubber material change
Series
CS Release-ring cover (Separately sold)
Chemical
Series compliant øP1
øD
PP
Series

EG
Series

Anti-spatter
＆ Brass Series

B
G
C

ød Unit：mm
øP2

Model code Tube O.D. B øP1 øP2 Tube end G ød Weight
øD C (g)

CS 6 6
CS 8 8
CS 10 10
CS 12 12

※ . Reference size for Anti-spatter Tube “FB”.
　　FB0425 : CS6, FB0640 : CS8, FB0860 : CS10, FB1075 : CS12, FB1290 : Not Available
※ . Release-ring cover is not available for tube dia. over ø 8 mm of Union Y “KY”

OP. Page for special specifications CAD CAD data is available at PISCO website.

P.000

Safety Instructions

SAFETY Instructions

　This safety instructions aim to prevent personal injury and damage to
properties by requiring proper use of PISCO products.
　Be certain to follow ISO 4414 and JIS B 8370

ISO 4414：Pneumatic fluid power…Recomendations for the application of equipment
to transmission and control systems.

JIS B 8370：General rules and safety requirements for systems and their components.
This safety instructions is classified into “Danger”, “Warning” and “Caution” depending on
the degree of danger or damages caused by improper use of PISCO products.

Danger Hazardous conditions. It can cause death or serious
personal injury.

Warning Hazardous conditions depending on usages. Improper use of
PISCO products can cause death or serious personal injury.

Caution Hazardous conditions depending on usages. Improper use of PISCO
products can cause personal injury or damages to properties.

Warning

1. Selection of pneumatic products
23 ① A user who is a pneumatic system designer or has sufficient experience

and technical expertise should select PISCO products.
② Due to wide variety of operating conditions and applications for PISCO

products, carry out the analysis and evaluation on PISCO products.
The pneumatic system designer is solely responsible for assuring that
the user's requirements are met and that the application presents no
health or safety hazards. All designers are required to fully understand
the specifications of PISCO products and constitute all systems based
on the latest catalog or information, considering any malfunctions.

2. Handle the pneumatic equipment with enough knowledge and experience
① Improper use of compressed air is dangerous. Assembly, operation
and maintenance of machines using pneumatic equipment should be
conducted by a person with enough knowledge and experience.

3. Do not operate machine / equipment or remove pneumatic equipment until
safety is confirmed.
① Make sure that preventive measures against falling work-pieces or
sudden movements of machine are completed before inspection or
maintenance of these machine.
② Make sure the above preventive measures are completed. A
compressed air supply and the power supply to the machine must be
off, and also the compressed air in the systems must be exhausted.
③ Restart the machines with care after ensuring to take all preventive
measures against sudden movements.

※ . This safety instructions are subject to change without notice.

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Disclaimer

1. PISCO does not take any responsibility for any incidental or indirect
loss, such as production line stop, interruption of business, loss
of benefits, personal injury, etc., caused by any failure on use or
application of PISCO products.

2. PISCO does not take any responsibility for any loss caused by natural
disasters, fires not related to PISCO products, acts by third parties, and
intentional or accidental damages of PISCO products due to incorrect
usage.

3. PISCO does not take any responsibility for any loss caused by improper
usage of PISCO products such as exceeding the specification limit or not
following the usage the published instructions and catalog allow.

4. PISCO does not take any responsibility for any loss caused by remodeling
of PISCO products, or by combinational use with non-PISCO products and
other software systems.

5. The damages caused by the defect of Pisco products shall be covered but
limited to the full amount of the PISCO products paid by the customer.

24

Safety Instructions

SAFETY INSTRUCTION MANUAL

PISCO products are designed and manufactured for use in general industrial
machines. Be sure to read and follow the instructions below.

Danger

1. Do not use PISCO products for the following applications.
① Equipment used for maintaining / handling human life and body.
② Equipment used for moving / transporting human.
③ Equipment specifically used for safety purposes.

Warning

1. Do not use PISCO products under the following conditions.

① Beyond the specifications or conditions stated in the catalog, or the instructions.

② Under the direct sunlight or outdoors.

③ Excessive vibrations and impacts.

④ Exposure / adhere to corrosive gas, inflammable gas, chemicals, seawater, water and vapor. *

　　　＊ S ome products can be used under the condition above( ④ ), refer to

the details of specification and condition of each product.

2. Do not disassemble or modify PISCO products, which affect the

performance, function, and basic structure of the product.

3. Turn off the power supply, stop the air supply to PISCO products, and make sure

there is no residual air pressure in the pipes before maintenance and inspection.

4. Do not touch the release-ring of push-in fitting when there is a working pressure.

25 The lock may be released by the physical contact, and tube may fly out or slip out.
5. Frequent switchover of compressed air may generate heat, and there is a

risk of causing burn injury.

6. Avoid any load on PISCO products, such as a tensile strength, twisting

and bending. Otherwise, there is a risk of causing damage to the products.

7. As for applications where threads or tubes swing / rotate, use Rotary

Joints, High Rotary Joints or Multi-Circuit Rotary Block only. The other

PISCO products can be damaged in these applications.

8. Use only Die Temperature Control Fitting Series, Tube Fitting Stainless SUS316

Series, Tube Fitting Stainless SUS316 Compression Fitting Series or Tube Fitting

Brass Series under the condition of over 60℃ (140°F) water or thermal oil. Other

PISCO products can be damaged by heat and hydrolysis under the condition above.

9. As for the condition required to dissipate static electricity or provide an antistatic

performance, use EG series fitting and antistatic products only, and do not use other PISCO

products. There is a risk that static electricity can cause system defects or failures.

10. Use only Fittings with a characteristic of spatter-proof such as Anti-

spatter or Brass series in a place where flame and weld spatter is

produced. There is a risk of causing fire by sparks.

11. Turn off the power supply to PISCO products, and make sure there is

no residual air pressure in the pipes and equipment before maintenance.

Follow the instructions below in order to ensure safety.

① Make sure the safety of all systems related to PISCO products before maintenance.

② Restart of operation after maintenance shall be proceeded with care after

ensuring safety of the system by preventive measures against unexpected

movements of machines and devices where pneumatic equipment is used.

③ Keep enough space for maintenance when designing a circuit.

12.Take safety measures such as providing a protection cover if there is a

risk of causing damages or fires on machine / facilities by a fluid leakage.

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Caution

1. Remove dusts or drain before piping. They may get into the peripheral

machine / facilities and cause malfunction.

2. When inserting an ultra-soft tube into push-in fitting, make sure to place

an Insert Ring into the tube edge. There is a risk of causing the escape of

tube and a fluid leakage without using an Insert Ring.

3. The product incorporating NBR as seal rubber material has a risk of

malfunction caused by ozone crack. Ozone exists in high concentrations

in static elimination air, clean-room, and near the high-voltage motors,

etc. As a countermeasure, material change from NBR to HNBR or FKM is

necessary. Consult with PISCO for more information.

4. Special option “Oil-free” products may cause a very small amount of a fluid

leakage. When a fluid medium is liquid or the products are required to be

used in harsh environments, contact us for further information.

5. In case of using non-PISCO brand tubes, make sure the tolerance of the

outer tube diameter is within the limits of Table 1.

　● Table 1. Tube O.D. Tolerance

mm size Nylon tube Polyurethane tube inch size Nylon tube Polyurethane tube

ø1.8mm ─ ± 0.05mm ø1/8 ± 0.1mm ± 0.15mm

ø3mm ─ ± 0.15mm ø5/32 ± 0.1mm ± 0.15mm
ø4mm ± 0.1mm ± 0.15mm ø3/16 ± 0.1mm ± 0.15mm

ø6mm ± 0.1mm ± 0.15mm ø1/4 ± 0.1mm ± 0.15mm

ø8mm ± 0.1mm ± 0.15mm ø5/16 ± 0.1mm ± 0.15mm
ø10mm ± 0.1mm ± 0.15mm ø3/8 ± 0.1mm ± 0.15mm

ø12mm ± 0.1mm ± 0.15mm ø1/2 ± 0.1mm ± 0.15mm 26

ø16mm ± 0.1mm ± 0.15mm ø5/8 ± 0.1mm ± 0.15mm

6. Instructions for Tube Insertion
① Make sure that the cut end surface of the tube is at right angle without
a scratch on the surface and deformations.
② When inserting a tube, the tube needs to be inserted fully into the push-
in fitting until the tubing edge touches the tube end of the fitting as
shown in the figure below. Otherwise, there is a risk of leakage.

Tube end

Sealing

Tube is not fully inserted up to tube end.

③ After inserting the tube, make sure it is inserted properly and not to be
disconnected by pulling it moderately.

※ . When inserting tubes, Lock-claws may be hardly visible in the hole, observed
from the front face of the release-ring. But it does not mean the tube will
surely escape. Major causes of the tube escape are the followings;
① Shear drop of the lock-claws edge
② The problem of tube diameter (usually small)
Therefore, follow the above instructions from ① to ③ , even lock-claws
is hardly visible.

Safety Instructions

7. Instructions for Tube Disconnection

① Make sure there is no air pressure inside of the tube, before disconnecting it.

② Push the release-ring of the push-in fitting evenly and deeply enough to

pull out the tube toward oneself. By insufficient pushing of the release-

ring, the tube may not be pulled out or damaged by scratch, and tube

shavings may remain inside of the fitting, which may cause the leakage

later.

8. Instructions for Installing a fitting

① When installing a fitting, use proper tools to tighten a hexagonal-column

or an inner hexagonal socket. When inserting a hex key into the inner

hexagonal socket of the fitting, be careful so that the tool does not

touch lock-claws. The deformation of lock-claws may result in a poor

performance of systems or an escape of the tube.

② Refer to Table 2 which shows the recommended tightening torque. Do

not exceed these limits to tighten a thread. Excessive tightening may

break the thread part or deform the gasket and cause a fluid leakage.

Tightening thread with tightening torque lower than these limits may

cause a loosened thread or a fluid leakage.

③ Adjust the tube direction while tightening thread within these limits,

since some PISCO products are not rotatable after the installation.

● Table 2: Recommended tightening torque / Sealock color / Gasket

materials

27 Thread type Thread size Tightening torque Sealock color Gasket materials

M3 × 0.5 0.7N·m SUS304
M5 × 0.8 1.0 ~ 1.5N·m NBR
M6 × 1 2 ~ 2.7N·m

Metric thread M3 × 0.5 0.5 ~ 0.6N·m ─

M5 × 0.8 1 ~ 1.5N·m POM
M6 × 0.75 0.8 ~ 1N·m

M8 × 0.75 1 ~ 2N·m

R1/8 7 ~ 9N·m

Taper pipe thread R1/4 12 ~ 14N·m White ─
R3/8 22 ~ 24N·m

R1/2 28 ~ 30N·m

Unified thread No.10-32UNF 1.0 ~ 1.5N·m ─ SUS304、NBR

1/16-27NPT 7 ~ 9N·m

National pipe 1/8-27NPT 7 ~ 9N·m White ─
thread taper 1/4-18NPT 12 ~ 14N·m
3/8-18NPT 22 ~ 24N·m

1/2-14NPT 28 ~ 30N·m

※ These values may differ for some products. Refer to each specification as well.

9. Instructions for removing a fitting

① When removing a fitting, use proper tools to loosen a hexagonal-column

or an inner hex bolt.

② Remove the sealant stuck on the mating equipment. The remained

sealant may get into the peripheral equipment and cause malfunctions.

10. Arrange piping avoiding any load on fittings and tubes such as twist,

tensile, moment load, shaking and physical impact. These may cause

damages to fittings, tube deformations, bursting and the escape of tubes.

Fitting Series

FITTING Common Safety Instructions for Fittings

Before selecting or using PISCO products, read the following instructions. Read the
detailed instructions for individual series as well as the instructions below.

Warning

1. Do not use fittings with fluid medium other than air or water. (Water can be
used with some series.) Contact us for using other kind of fluid medium except
air and water.

2. Do not use fittings except Anti-spatter, Brass and Brass Compression Fitting
series in a place where the flame and weld spatter is produced. There is a risk
of causing fire by sparks.

3. As for applications where threads or tubes swing / rotate, use Rotary Joints,
High Rotary Joints or Multi-Circuit Rotary Block only. The other PISCO products
can be damaged in these applications.

4. Use only Die Temperature Control Fitting Series, Tube Fitting Stainless

SUS316 Series, Tube Fitting Stainless SUS316 Compression Fitting Series

or Tube Fitting Brass Series under the condition of over 60℃ (140° F) water

33 or thermal oil. Other PISCO products can be damaged by heat and hydrolysis
under the condition above.

5. As for the condition required to dissipate static electricity or provide an
antistatic performance, use EG Series fitting and antistatic products only, and
do not use other PISCO products. There is a risk that static electricity can
cause system defects or failures.

6. Avoid any load on PISCO products, such as a tensile strength, twisting and
bending. Otherwise, there is a risk of causing damage to the products.

http://www.pisco.co.jp

Caution FITTING CONTROLLER VALVE

1.In case of using non-PISCO brand tubes, make sure the tolerance of the outer
tube diameter is within the following limits of Table 1.

　● Table 1. Tube O.D. Tolerance

mm size Nylon tube Urethane tube inch size Nylon tube Urethane tube
ø1/8 ± 0.1mm ± 0.15mm
ø1.8mm ─ ± 0.05mm ø5/32 ± 0.1mm ± 0.15mm
ø3/16 ± 0.1mm ± 0.15mm
ø3mm ─ ± 0.15mm ø1/4 ± 0.1mm ± 0.15mm
ø4mm ± 0.1mm ± 0.15mm ø5/16 ± 0.1mm ± 0.15mm
ø6mm ± 0.1mm ± 0.15mm ø3/8 ± 0.1mm ± 0.15mm
ø1/2 ± 0.1mm ± 0.15mm
ø8mm ± 0.1mm ± 0.15mm ø5/8 ± 0.1mm ± 0.15mm TUBE
ø10mm ± 0.1mm ± 0.15mm
ø12mm ± 0.1mm ± 0.15mm

ø16mm ± 0.1mm ± 0.15mm

2. Instructions for Tube Insertion MAKE-TO-ORDER
① Make sure that the cut end surface of the tube is at right angle without a PRODUCTS
scratch on the tube surface and deformations.

② When inserting a tube, the tube needs to be inserted fully into the push-in
fitting until the tubing edge touches the tube end of the fitting as shown in
the figure below. Otherwise, there is a risk of leakage.

Tube end 34

Sealing Standard
Series
Tube is not fully inserted up to tube end.
③ After inserting the tube, make sure it is inserted properly and not to be Mini
Series
disconnected by pulling it moderately.
Stainless
3. Instructions for Tube Disconnection Series
① Make sure there is no air pressure inside of the tube, before disconnecting it.
Chemical
② Push the release-ring of the push-in fitting evenly and deeply enough to pull Series
out the tube toward oneself. By insufficient pushing of the release-ring, the
tube may not be pulled out or damaged by scratch, and tube shavings may PP
remain inside of the fitting, which may cause the leakage later. Series

EG
Series

Anti-spatter
＆ Brass Series

Die Temperature
Control

Minimal
Series

Stop Fitting
Series

Rotary
Series

Twist-Proof
Fitting

Block and
Connector

Coupling

Color
Cap

Fitting Series

FITTING 4. Instructions for Installing a fitting
① When installing a fitting, use proper tools to tighten a hexagonal-column or
an inner hexagonal socket. When inserting a hex key into the inner hexagonal
socket of the fitting, be careful so that the tool does not touch lock-claws.
The deformation of lock-claws may result in a poor performance of systems
or an escape of the tube.

② Refer to Table 2 which shows the recommended tightening torque. Do not
exceed these limits to tighten a thread. Excessive tightening may break
the thread part or deform the gasket and cause a fluid leakage. Tightening
thread with tightening torque lower than these limits may cause a loosened
thread or a fluid leakage.

③ Adjust the tube direction while tightening thread within these limits, since
some PISCO products are not rotatable the installation.

● Table 2: Recommended tightening torque / Sealock color / Gasket materials

Thread type Thread size Tightening torque Sealock color Gasket materials

M3 × 0.5 0.7N·m SUS304
M5 × 0.8 1.0 ~ 1.5N·m NBR
M6 × 1 2 ~ 2.7N·m

Metric thread M3 × 0.5 0.5 ~0.6N·m ─

35 M5 × 0.8 1 ~1.5N·m POM
M6 × 0.75 0.8 ~ 1N·m

M8 × 0.75 1 ~ 2N·m

R1/8 7 ~ 9N·m

Taper pipe thread R1/4 12 ~ 14N·m White ─
R3/8 22 ~ 24N·m

R1/2 28 ~ 30N·m

Unified thread No.10-32UNF 1.0 ~ 1.5N·m ─ SUS304、NBR

1/16-28NPT 7 ~ 9N·m

National pipe thread 1/8-27NPT 7 ~ 9N·m White ─
taper 1/4-18NPT 12 ~ 14N·m
3/8-18NPT 22 ~ 24N·m

1/2-14NPT 28 ~ 30N·m

※ .These values may differ for some products. Refer to each specification as well

5.Instructions for removng a fitting
① When removing a fitting, use proper tools to loosen a hexagonal-column or
an inner hexagonal socket.

② Remove the sealant stuck on the mating equipment. The remained sealant
may get into the peripheral equipment and cause malfunctions.

6.Arrange piping avoiding any load on fittings and tubes such as twist, tensile,
moment load, shaking and physical impact. These may cause damages to
fittings, tube deformations, bursting and the escape of tubes.