OTS Pumps & Compressors - MetalBellows

OTS Pumps & Compressors Metal Bellows Vacuum Pumps And Compressors
Off-The- Shelf Solutions to Your Toughest
Pumping Applications

Contents 1

Features, Descriptions and Applications 2-8
2
Vaccum Pumps and Compressors 3
MB-21 MB-41 4
MB-118 MB-158 5
MB-111 MB-151 6
MB-302 7
MB-601 8
MB-602
MODEL PWSC 28823-7 9-11
19
High Temperature Models 10
MB-118HT MB158HT 11
MB-302HT
MB-601HT 12

Off The Shelf Parts 13

Double Containment Pumps and Compressors 14

High Pressure Models 15

Making the Correct Pump Selection

Features, Descriptions, Applications

Standard MET BEL® vacuum pumps and com- MET BEL Concept
pressors are frequently modified to meet unique
customer requirements. Customized applica- IN OUT
tions may include all metal construction, ability
to withstand extreme operating temperatures,
or such special electrical characteristics as
explosion proof motors, variable speed motors,
DC motors and various voltage requirements.
SAMB also offers double containment units for
radioactive, toxic, and rare gas applications.

Whether they are off-the shelf or specially
designed for a particular application, Met Bel
pumps share these common features:

• Long Life – uniform, symmetrical welds that
assure long life

• Stainless Steel – all wetted surfaces made
from corrosion resistant 300 Series stainless
steel except for the valve assembly gaskets
which are either Teflon or Viton (all metal
surfaces available on request)

• No Maintenance – no wearing surfaces and
no lubrication required

• Hermetically Sealed – hermetically sealed Applications Note:
welded bellows that provide positive
containment. Every pump is pressure tested • Gas analysis, analytical instrumentation Performance curves in this catalog are based on:
to assure leak-tight integrity, with sampling • Atmospheric pressure at the inlet for
certification to mass spectrometer leak
testing available • Nuclear radiation monitoring pressure curves and
• High voltage electronics cooling and wave • Atmospheric pressure at the discharge for
• Infinite Number of Cycles – bellows and
valves designed with stress levels below guide pressurization vacuum curves.
defined endurance limits of materials allow- • High temperature engine exhaust analysis
ing for an infinite number of cycles • Ambient air sampling For other conditions see Page 16

• Sealed Ball Bearings – motor and drive
assembly containing permanently lubricated
and sealed ball bearings

• Positive Bellows Displacement – eccentric • Radioactive, toxic, costly gas processing
between the bearings and the motor shaft
that provides motion for positive bellows • Research and laboratory experiments provid-
displacement ing contaminant free samples

• Commercial aircraft potable water
pressurization system

• Semiconductor process gas handling

1

Vacuum Pumps And Compressors

MB-21 MB-41 SPECIFICATIONS

General Cast Aluminum
AM-350 Stainless Steel
Housing Body 300 Series Stainless Steel except for Valve Assembly
Bellows Teflon Valve Gaskets and Viton O-Rings
All other wetted surfaces Permanently Lubricated Ball Type
6 lbs.
Bearings 1/8 N.P.T.
Weight
Port Connections

Electrical 115V 50/60 Hz.
2.3 Amps (max)
Standard 1/40 H.P. Shaded Pole Induction Motor with
Current at 115V/60hz Ball Bearings and Thermal Overload Protection
Motor Specification 3000 R.P.M.
Class B
Operating Speed @ 60 Hz.
Insulation

Optional Features: 240V 50 Hz., D.C. Motors, Viton Valve Gaskets, VCR Fittings

Design
Pressure
Rating

MB-41 MB-41
MB-21 MB-21

Flows depicted are at 60Hz. Flows at 50 Hz are 5/6 of 60 Hz flows.

7.07
179.65

1.50
38.05

2X ( .28 ) SLOTS
7.11

.32
8.03

4.26 3.38
108.13 85.85

.50
12.70

.25
6.35

1.60
2.76 40.71
70.10

3.82
97.03

2

MB-118 MB-158 SPECIFICATIONS

General Cast Aluminum
AM-350 Stainless Steel
Housing Body 300 Series Stainless Steel except for Valve Assembly
Bellows Viton Valve Gaskets
All other wetted surfaces Permanently Lubricated Ball Type
14 lbs.
Bearings 1/4 N.P.T.
Weight
Port Connections

Electrical 115V 50/60 Hz.
1.4 Amps (max)
Standard 1/10 H.P.
Current at 115V/60Hz 1725 R.P.M.
Motor Specification Class B
Operating Speed @ 60 Hz.
Insulation

Optional Features: 230V 50 Hz., D.C. Motors, Teflon Valve Gaskets, Aluminum O-Ring Seals, VCR Fittings

Design
Pressure
Rating

MB-158 MB-158
MB-118 MB-118

Flows depicted are at 60Hz. Flows at 50 Hz are 5/6 of 60 Hz flows.

.91 1.48 4.00
23.11 37.67 101.57

OUT IN .11
2.79

7.21
183.13

5.45
138.43

3.80
96.52

2.02
51.31

2.82 3.31 4 SLOTS
71.63 84.12 .28 [7.11] X .44 [11.18]
ON A 3.38 [85.85]
3 8.32
211.40 4.17
105.92

MB-111 MB-151 SPECIFICATIONS

General Cast Aluminum
AM-350 Stainless Steel
Housing Body 300 Series Stainless Steel except for Valve Assembly
Bellows Teflon Valve Gaskets and Viton O-Rings
All other wetted surfaces Permanently Lubricated Ball Type
24 lbs.
Bearings 1/4 N.P.T.
Weight
Port Connections

Electrical

Standard 115/230V 50/60 Hz.
Current at 115V/60Hz 5.4 Amps (max)
Motor Specification 1/4 H.P. Single Phase
ODP - Open Drip Proof Motor
Operating Speed @ 60 Hz. 1725 R.P.M.
Insulation Class B

Optional Features: Explosion Proof Motor, Totally Enclosed Fan Cooled (TEFC) Motor, Variable Speed Motor, Viton Valve Gaskets, Aluminum

O-Ring Seals, VCR Fittings, High Pressure Models (See Page 15)

Design
Pressure
Rating

MB-151 MB-151
MB-111 MB-111

Flows depicted are at 60Hz. Flows at 50 Hz are 5/6 of 60 Hz flows.

4.00 3.66
101.60 92.96

.11 .91
2.69 23.11

1.48 OUT
37.47

IN

8.79 7.33
223.30 186.06
5.70
3.00 144.78
76.20
4
4 MTG SLOTS 5.25 2.75
.34 [8.64] X 1.13 [28.70] 5.25 69.85
ON A 4.25 [107.95]
12.74
5.75 323.67
146.05

MB-302 SPECIFICATIONS

General Cast Aluminum
AM-350 Stainless Steel
Housing Body 300 Series Stainless Steel except for Valve Assembly
Bellows Teflon Valve Gaskets and Viton O-Rings
All other wetted surfaces Permanently Lubricated Ball Type
26 lbs.
Bearings 3/8 N.P.T.
Weight
Port Connections

Electrical 115/230V 50/60 Hz.
6.6 Amps (max)
Standard 1/2 H.P. Single Phase
Current at 115V/60Hz ODP - Open Drip Proof Motor
Motor Specification 3450 R.P.M.
Class B
Operating Speed @ 60 Hz.
Insulation

Optional Features: Explosion Proof Motor, Polyphase Motor, Totally Enclosed Fan Cooled (TEFC) Motor, Viton Valve Gaskets, VCR Fittings

Design
Pressure
Rating

Flows depicted are at 60Hz. Flows at 50 Hz are 5/6 of 60 Hz flows.

5

MB-601 SPECIFICATIONS

General Cast Aluminum
AM-350 Stainless Steel
Housing Body 300 Series Stainless Steel except for Valve Assembly
Bellows Teflon Valve Gaskets and Viton O-Rings
All other wetted surfaces Permanently Lubricated Ball Type
48 lbs.
Bearings 3/8 N.P.T.
Weight
Port Connections

Electrical 115/230V 50/60 Hz.
6.6 Amps (max)
Standard 3/4 H.P. Single Phase
Current at 115V/60 Hz ODP - Open Drip Proof Motor
Motor Specification 1725 R.P.M.
Class B
Operating Speed @ 60 Hz.
Insulation

Optional Features: Explosion Proof Motor, Polyphase Motor, Totally Enclosed Fan Cooled (TEFC) Motor, Variable Speed Motor, VCR Fittings,

Viton Valve Gaskets, Aluminum O-Ring Seals, High Pressure Models (See Page 15)

Design
Pressure
Rating

Parallel Parallel
Series Series

Flows depicted are at 60Hz. Flows at 50 Hz are 5/6 of 60 Hz flows.

.18 2.62 1.86
4.60 66.52 47.17

IN OUT

13.29 4.88
337.67 123.95

6.62
168.15

3.50 .18 IN OUT 4 MTG SLOTS
88.90 4.60 .34 [8.64] X 1.22 [30.99]
1.87 1.86
9.28 47.47 47.17 3.00
235.71 76.20
6.74
171.25 14.94
379.40
6

MB-602 SPECIFICATIONS

General Cast Aluminum

Housing Body AM-350 Stainless Steel
Bellows
All other wetted surfaces 300 Series Stainless Steel except for Valve Assembly

Bearings Teflon Valve Gaskets and Viton O-Rings
Weight
Port Connections Permanently Lubricated Ball Type
30 lbs
3/8 N.P.T.

Electrical 115/230V 50/60 Hz.
6.6 Amps (max)
Standard 1/2 H.P. Single Phase
Current at 115V/60 Hz ODP - Open Drip Proof Motor
Motor Specification 3450 R.P.M.
Class B
Operating Speed @ 60 Hz.
Insulation

Optional Features: Explosion Proof Motor, Polyphase Motor, Totally Enclosed Fan Cooled (TEFC) Motor, VCR Fittings, Viton Valve Gaskets

Design
Pressure
Rating

Series Parallel Series Parallel

Flows depicted are at 60Hz. Flows at 50 Hz are 5/6 of 60 Hz flows.

4.00 1.34 1.32
101.60 34.04 33.53

2.00 IN OUT
50.80

4 MTG SLOTS
.34 [8.64] X 1.16 [29.46]

4.25
107.95

11.72 5.75
297.64 146.05

3.00 IN OUT 2.75
76.20 69.85
5.63
7.29 142.88 13.31
338.12
7 185.04

MODEL PWSC 28823-7 SPECIFICATIONS

General AM-350 Stainless Steel
300 Series Stainless Steel except for Valve Assembly
Bellows Teflon Valve Gaskets, Silicone O-rings
All other wetted surfaces Cast Aluminum

Pump Housing, Cap, and Permanently Lubricated Ball Type
Connecting Rods MS33649 with Series Connected Manifold
Bearings Available to ATA 100 Specifications
Port Connections
Overhaul & Maintenance 12.0 lbs.
Manual
Weight

Electrical 115/200 V 400 Hz., 3 Phase, 600 Watts maximum power
Consumption
Power Designed in conformance with
Motor Specification MIL-M-7969 and is self cooling with direct acting auto-
matic reset thermal protector
Operating Speed @400 Hz. 3600 R.P.M.

Optional Features: Custom Electrical Connectors, Custom Manifolds

Design
Pressure
Rating

Parallel SeriePsarallel
Series

4.68
118.75

15.0
381

ELECTRICAL 1.50
CONNECTOR 38.10

.25 45
6.43
MOUNTING HOLES

4X .203 THRU
.192

7.50 5.156 3.53
190.50 89.64
4.877
4.13
104.88 5.56 5.87
141.22 149.10

CL CL INLET OUTLET PORT PER
INLET OUTLET 2.38 FILTER SAE AS5202-06
60.39
1.48
37.53

5.34 DUPLEX PUMPS OPERATED IN SERIES/PARALLEL
135.64 PLUMBING A MET BEL® DUPLEX VACUUM PUMP COMPRESSOR IN SERIES

DUPLEX PUMPS OPERATED IN SERIES/PARALLEL Any MET BEL® Duplex Vacuum Pump/Compressor can be connected in series and oper-
ated as a two-stage pump. This results in a lower absolute inlet pressure when operated
Shown below is the correct plumbing procedure as a vacuum pump and a higher flow at maximum rated pressure when operated as a
compressor (see flow curves). To do this, connect the outlet port of the first stage to the
IN IN inlet port of the second stage with a manifold. For compressor operation, connect serv-
OUT OUT ice line to the outlet port of the second stage. For vacuum operation, connect the service
line to the inlet port of the first stage.
PARALLEL IN IN
OUT OUT Caution: Never operate with the outlet port of the second stage fully closed. This will cause
extremely high pressure build up in the second stage that can damage the pump. It is recommended 8
RELIEF VALVE that a relief valve set at 40 PSIG be used in the outlet line to prevent this over pressurization.
SERIES

MB-118HT MB158HT SPECIFICATIONS

General Nickel Plated Cast Iron and Aluminum

Housing Body AM-350 Stainless Steel
Bellows
All other wetted surfaces 300 Series Stainless Steel except for Valve Assembly, Teflon Valve Gaskets
Bearings
Weight Permanently Lubricated and Shielded, Heat Stabilized Ball Type
Ambient Temp
Port Connections 26 lbs.
392ºF Max for Pump Head/105ºF Max for Motor
1/4 N.P.T.

Electrical 115/230V 50/60 Hz.
5.4 Amps (max)
Standard 1/4 H.P.
Current at 115V/60 Hz Single Phase ODP - Open Drip Proof Motor
Motor Specification 1725 R.P.M.
Class B
Operating Speed @ 60 Hz.
Insulation

Optional Features: Explosion Proof Motor, Totally Enclosed Fan Cooled (TEFC) Motor, Shaft Lengths to 8”

Design
Pressure
Rating

MB-158 HT MMB-B11-185H8THT
MB-118 HT

Flows depicted are at 60Hz. Flows at 50 Hz are 5/6 of 60 Hz flows.

2.25 10.00
57.15 254

2.76 .51 4 MTG. SLOTS
70.12 13.02 2.75 .34 [8.64] X 1.13 [28.70]
69.85 ON A 4.25 [107.95]
8.19 7.33
208.03 186.06

5.70
144.78

3.00 .50 TYP 3.00
76.20 [12.7] 76.20

2.00 .95 2.31
50.80 24.03 58.74

6.53
165.79

19

MB-302HT SPECIFICATIONS

General Nickel Plated Cast Iron and Aluminum
AM-350 Stainless Steel
Housing Body 300 Series Stainless Steel except for Valve Assembly
Bellows Teflon Valve Gaskets and Viton O-Rings
All other wetted surfaces Permanently Lubricated and Shielded, Heat Stabilized Ball Type
37 lbs.
Bearings 392ºF Max for Pump Head/105ºF Max for Motor
Weight 3/8 N.P.T.
Ambient Temp
Port Connections

Electrical 115/230V 50/60 Hz.
7.4 Amps (max)
Standard 1/2 H.P. Single Phase ODP - Open Drip Proof Motor
Current at 115V/60 Hz 1725 R.P.M.
Motor Specification Class B
Operating Speed @ 60 Hz.
Insulation

Optional Features: Explosion Proof Motor, Polyphase Motor, Totally Enclosed Fan Cooled (TEFC) Motor

Design
Pressure
Rating

Flows depicted are at 60Hz. Flows at 50 Hz are 5/6 of 60 Hz flows.

4.38 1.43 1.86
111.13 36.36 47.17

IN OUT

7.89 2.06 8.05
200.28 52.40 204.47

9.59 .48
243.54 12.07

5.63
143

3.00 3.00 7.24
76.20 76.20 184

4.50 .31 [7.87] MTG SLOTS (PUMP BODY) 2.13 2.75 4X MTG SLOTS
53.98 69.85 .34 [8.64] WIDE X 1.16 [29.46]
114.30 2.00 .97 LONG ON 4.25 [107.95]
CL OF MTG SLOTS 50.80 24.64
ON PUMP BODY
7.20
182.80

10

MB-601HT SPECIFICATIONS

General Nickel Plated Cast Iron and Aluminum
AM-350 Stainless Steel
Housing Body 300 Series Stainless Steel except for Valve Assembly
Bellows Teflon Valve Gaskets, Viton O-Rings
All other wetted surfaces Permanently Lubricated and Shielded, Heat Stabilized Ball Type
61 lbs.
Bearings 392ºF Max for Pump Head/105ºF Max for Motor
Weight 3/8 N.P.T.
Ambient Temp
Port Connections 115/230V 50/60 Hz.
6.6 Amps (max)
Electrical 3/4 H.P. Single Phase ODP - Open Drip Proof
1725 R.P.M.
Standard Class B
Current at 115V/60 Hz
Motor Specification
Operating Speed @ 60 Hz.
Insulation

Optional Features: Explosion Proof Motor, Polyphase Motor, Totally Enclosed Fan Cooled (TEFC) Motor

Design
Pressure
Rating

Parallel SeriesParallel
Series

Flows depicted are at 60Hz. Flows at 50 Hz are 5/6 of 60 Hz flows.

.18 2.62 1.86 10.75
4.57 66.52 47.17 273.05

13.28 IN OUT 2.56 3.00
337.41 64.90 76.20

3.50 .18 .31 [7.87] MTG. SLOTS
88.90 4.57
.500 .625
9.28 12.69 15.87
235.71
4.50 6.62
114.30 168.15
4.88
.27 123.95
6.79
11
2.00 1-7/32 [30.96] X 11/32 [8.73]MTG. SLOTS
50.80
5.94
1.87 1.86 150.81
47.47 47.17

5.25
133.35

8.31
211.12

Off-The-Shelf Parts IN OUT

STANDARD MODELS
ADAPTATIONS of STANDARDS
CUSTOM DESIGNS

Whatever your application requires, SAMB
stands ready to help you find a solution. Our
Sales and Engineering Personnel will help you
select a standard pump, resolve a modification
to a standard or define a custom design to meet
your needs. Custom designs are available for
system pressures below 50 torr and high pres-
sure models to 100 psi.

CALL METAL BELLOWS FOR ASSISTANCE

Sales personnel will assist you in resolving your
needs. If your application requires a special
system, we will put you directly in touch with
the proper technical specialist.

MET BEL® pump replacement parts are
also available. For further information call
(781)784-1400.

Pumps will pass a reasonable amount of con-
densation but will be damaged by significant
amounts of liquid.

MET BEL® SPECIFICATIONS

Motor Assemblies SINGLE MODEL BELLOWS REPLACEMENT VALVE QUANTITY
- due to the number of models, call UNITS DRIVER ASSEMBLY PER PUMP
(781) 784.1400 for the latest replace- DUPLEX MB-21
ment motor model for your pump type. MB-21HT 28686* 29582 26328 1
27514* 45403 28905 1
* Bellows Unit - Bellows, MB-41 Factory Only
eccentric, bearing,driver terminal MB-41HT 29007* Factory Only 26328 1
and valve terminal 27008* Factory Only 28905 1
MB-111 26865* 29582 25871 1
** Bellows Unit - Bellows, valve 28347* 27995 1
terminal and drive terminal MB-118 29192* 29568 1
MB-118 HT 25427* 25871 1
12 MB-151
28334* 27995 1
MB-158 29190* 29568 1
MB-158 HT
29217** 31722 1
MB-302 45402** 31722 1
29670-1** 27456 1
(prior to S/N 1600)
(S/N 1600 and above) 29670-1** 27456 2
29670-1** 27456 2
MB-302 HT
29217** 31722 2
MB-601
MB-601 HT

MB-602

DOUBLE CONTAINMENT
PUMPS & COMPRESSORS

Specifications

General

Pressure Shell 300 Series Stainless Steel
All other wetted surfaces 300 Series Stainless Steel with either Aluminum
O-Rings, Teflon Valve Gaskets, or Viton Valve Gaskets
Bellows AM-350 S.S. (347 S.S Optional)
Bearings Permanently Lubricated Ball Type
Port Connections 300 series Stainless Steel Tubing (Length Optional up to 18”)
or VCR Weld Glands

Electrical As Required by Application
1/4 H.P. to 1 1/2 H.P.
Motor Specification 1725 R.P.M.
Power Rating As Required by Application
Operating Speed @ 60 Hz.
Insulation

Performance 28 inches Hg (maximum, duplex, low pressure)
85 PSIG (maximum, MB-601, high pressure)
Vacuum 5 SCFM Free Flow (maximum, MB-601)
Pressure
Flow

Optional Features

Explosion Proof Motor Leak Detector Port Location Optional
Special Electrical Insulation (Radiation Resistant) and Voltages Pedestal Mount

Features and Benefits

Met Bel Double Containment Pumps and Compressors solve unique containment problems where radioactive gases are involved or where loss of

gas could be hazardous or costly. Using secondary bellows as leak-tight seals, they are used primarily in nuclear industrial applications to con-

trol, contain, and distribute the flow of such gases as xenon, krypton, hydrogen, and tritium.

In addition to the conventional inlet-outlet construction of typical compressors, double containment pumps and compressors have third port

connections to a vacuum leak detector that monitors the integrity of the pumping system. They are available in both single and duplex design,

leak tight to less than 2x10-10 scc/sec He. Should the bellows rupture due to excessive pressure or contamination, the vacuum would be lost.

This would cause a pressure switch or leak detector to be triggered, setting off an alarm and shutting down the system. The pumped 13
gas does not escape.

HIGH PRESSURE MODELS

PHOTO

Specifications

General

Housing Body Cast Aluminum
Bellows AM-350 Stainless Steel
All other wetted surfaces 300 Series Stainless Steel with either Aluminum
O-Rings, Teflon Valve Gaskets, or Viton Valve Gaskets
Bearings Permanently Lubricated
Ball Type
Port Connections 1/4 or 3/8 NPT

Electrical 115/230V 50/60Hz
1/4 H.P. to 1 1/2 H.P.
Motor Specification 1725 R.P.M.
Power Rating Class B
Operating Speed @ 60 Hz.
Insulation

Performance 100 PSIG (maximum, MB-601)
5 SCFM Free Flow (maximum, MB-601)
Discharge Pressure
Flow

Optional Features

Various Motor Types and Voltages
Duplex Model – one or two high pressure stages
VCR Fittings

Features and Benefits

Designed to solve unique pressure problems where contaminant free samples must be processed with leak-tight integrity, these compressors oper-
ate at pressures much higher than standard models. They are available in both single and duplex design; leak tight to less than 2x10 -10 scc/sec He.

14

MAKING THE CORRECT PUMP SELECTION

When neither the inlet nor the discharge is at atmospheric pressure, a rough sizing of the pump can
be determined.
Example:
• Required discharge pressure 12 PSIG
• Required inlet pressure is 10 in Hg.
• Required flow is 1 SCFM

Step 1. Eliminate all pumps that will not produce sufficient flow, i.e. pumps smaller than the MB-302

will not produce 1 SCFM at 10” Hg not to mention the further constraint of 12 PSIG at the discharge.

Step 2. Select either the MB-302 or the MB-602.
Step 3. Selecting the MB-602 draw a vertical line on the pressure curve graph from 12 PSIG to the

point where the line intersects the MB-602 flow curve. Read horizontally to flow = 4.4 SCFM

Step 4. On the vacuum curve graph draw a line from 4.4 SCFM parallel to the MB-602 flow curve.
Step 5. Draw a vertical line from 10” Hg intersecting new vacuum flow curve. Read horizontally to

flow of approximately 1.3 SCFM

Note: When results are marginal check with the factory before ordering.

Air Flow (scfm) 7
6
Air Flow (SCFM) 5
4
3 15
2
1
0

0 5 10 15 20 25 30 35 40
Pressure (psig)

7
6
5
4
3
2
1
0

0 2 4 6 8 10 12 14 16 18 20 22 24
Vaccum (inches of Hg)

1075 Providence Highway
Sharon, Massachusetts 02067
Phone: 781-784-1400
1(800)BELLOWS
Fax: 781-784-1405
Web Site: www.metalbellows.com
Email: [email protected]