9 This is a Government Property. Not For Sale S l Republic of the Philippines Department of Education NATIONAL CAPITAL REGION Misamis Street, Bago-Bantay, Quezon City UNIFIED SUPPLEMENTARY LEARNING MATERIALS (USLeM) (TECHNICAL DRAFTING 9) QUARTER 4 – MODULE 1.4 Learning Competency LO 2. Draft Water Distribution System 2.1. Draft hot and cold-water distribution systems according to plumbing and water code. 2.2. Indicate signs and symbols according to sanitary and plumbing requirements. Name: Section:
UNIFIED SUPPLEMENTARY LEARNING MATERIALS Grade 9 – TECHNICAL DRAFTING __________________________________________________________________________________ __________________________________________________________________________________________ Page 1 (This is a Government Property. Not for Sale.) Development Team of the Module Writer: Jocelyn A. Parenas Illustrator: Jocelyn A. Parenas Layout Artist: Ferdinand A. Payawal Content Editor: Patricia P. Villar Reviewers: Helen N. Flora Carina A. Ortiz Luis, PhD. Lorelina G. Morera Language Editor: Jocelyn B. Balatucan Management Team: Malcolm S. Garma, Regional Director – NCR Jenilyn Rose B. Corpuz, Schools Division Superintendent Genia V. Santos, CLMD Chief – NCR Dr. Ebenezer A. Beloy, OIC-CID Chief SDO-Quezon City James Roldan, EPS EPP/TLE/TVL - NCR Dennis M. Mendoza, LR EPS – NCR Helen N. Flora, EPS TLE/TVL SDO
UNIFIED SUPPLEMENTARY LEARNING MATERIALS Grade 9 – TECHNICAL DRAFTING __________________________________________________________________________________ __________________________________________________________________________________________ Page 2 (This is a Government Property. Not for Sale.) Signs and Symbols in Drafting Water Distribution System EXPECTATIONS At the end of the module, you should be able to: 1. identify the different symbols in drafting a sanitary and plumbing layout that is needed in installing pipes and other components by a plumber; 2. layout a hot and cold water distribution system, in accordance with the Plumbing and Clean Act Water Code of the Philippines; and 3. recognize the importance of sanitary and plumbing layout as a guide in the plumbing installation. 4. PRETEST Directions: Read each test item carefully. Choose the letter of the correct answer from the given options. 1. If we want to use hot water, we open this plumbing system component that change cold water to hot water. A. Adding hot water C. mixing chemicals B. Exposing it to sunlight D. Use of Water heater 2. What plumbing fittings can you suggest if there is a need to reduce the size of the opening of pipes? A. Bushing B. Cap C. Reducer D. Unions 3. If someone asks you if what is the material needed to close a system and connect pipes, what will you suggest? A. Bushing B. Cap c. Plug D. Unions 4. Pipe type which is lightweight and hard but strong metal is better Except______. A. long lasting B. never breaks C. no after taste D. smooth 5. It refers to the water supply and drainage of water waste disposal coming from the house is called. A. Sewage Disposal B. Water Supply C. Plumbing D. Scale Layout
UNIFIED SUPPLEMENTARY LEARNING MATERIALS Grade 9 – TECHNICAL DRAFTING __________________________________________________________________________________ __________________________________________________________________________________________ Page 3 (This is a Government Property. Not for Sale.) LOOKING BACK In the previous module you have learned how to draw symbols for electronic devices and fire alarm systems and terminologies. Answer the set of questions to refresh your knowledge on this. 1. What is the main function of a CCTV? A. Releasing updated news. B. Recording data for personal purposes. C. Gathering views for commercial purpose. D. Recording events and transmit videos on time viewing and recording purposes. 2. Which of the following is not useful in case there is a fire break out? A. Fire Detector B. Fire Extinguisher C. Fire Fittings D. Television 3. It is the basis in laying-out the Fire Alarm System. A. Electrical Code B. Electronic Code C. Philippine Code of Ethics D. Plumbing 4. It is a common location of a CCTV monitor where the on-time or recorded events can be seen. A. Ceiling B. Bedroom C. Kitchen D. Garage 5. It gives us an alarming sound located near the bed in case smoke was detected. A. Fire Button B. Heat Detector C. Fire Button D. Fire extinguisher BRIEF INTRODUCTION Architects and drafters need to understand the sanitary and plumbing system for it could guide the plumber to install pipes and other components. The plumbing system has two major functions: the water distribution and sewage disposal. The water distribution systems are pipes that are connected from the main water source and will run in lavatories, showers, toilets, and half of this will run to a water heater that will provide hot water. The lesson in this module includes the plumbing symbols and locations of the components that will help in drafting sanitary and plumbing layout based on the standards of Sanitary and Plumbing Code in the Philippines. PLUMBING SYSTEM Plumbing Systems have two major functions, the water distribution, and the sewage disposal. Both need to layout pipes for the distribution of clean water, while the other is on the sewerage system. For sewage disposal copper, brass, plastic, and iron are the most common types while for clean water a PVC is the most common.
UNIFIED SUPPLEMENTARY LEARNING MATERIALS Grade 9 – TECHNICAL DRAFTING __________________________________________________________________________________ __________________________________________________________________________________________ Page 4 (This is a Government Property. Not for Sale.) Plumbing must be drawn from its very small scale and that is why the realistic schematic diagram is a must, because fixtures and other components should be shown. “Plumbing System” ⮚ Plumbing system includes potable water supply and distribution, plumbing fixtures, and pipes. ⮚ water heaters and vents Parts of Water Distribution System Name Symbols Use/ Description Service Pipe The main potable water pipe that supplies the water system of the entire building. Distribution Pipe/Supply Pipe A pipe that conveys water from the water service to its utilization point Riser A water supply pipe that extends one full storey or more to distribute water to branches or group of fixtures Fixture Branch In between pipe of supply and water distributing pipe Fixture Branch A connecting pipe from the fixture to fixture branch Operational Definition of Terms Plumbing Layout Name Symbols Description/ Use Water Meter It measures how much water is used Hot Water Hot water that run to the shower or faucet Sanitary Waste Wastewater release going out to the house Water Closet Another name of toilet gravity flush Water Heater It is used to increase the temperature of the water Clean Out It provides access to the main sewer line
UNIFIED SUPPLEMENTARY LEARNING MATERIALS Grade 9 – TECHNICAL DRAFTING __________________________________________________________________________________ __________________________________________________________________________________________ Page 5 (This is a Government Property. Not for Sale.) 90°elbow Fitting use to bent 90 ° to redirect flow of water Union Threaded pipe at both end Gas Pipe Pipe made of brass or aluminum used for releasing gas Water Heater Shut Off Used to control the flow of water Floor Drain Fixture located at the floor to drain water Hot and Cold Water
UNIFIED SUPPLEMENTARY LEARNING MATERIALS Grade 9 – TECHNICAL DRAFTING __________________________________________________________________________________ __________________________________________________________________________________________ Page 6 (This is a Government Property. Not for Sale.) Main Water supply to House meter Classification of Pipe 1.Steel and Wrought iron pipe 2.Cast iron pipe 3.Seamless brass and copper pipe 4.Copper tubing 5.Special pipes such as the PVC- Polyvinyl Chloride, Aluminum and Stainless pipes and CPVC (Chlorinated Polyvinyl Chloride pipe) Connection of Pipes Pipe connection method will depend on the material and demand of the service. Steel, brass, or bronze pipes are usually threaded and screwed to couplings and fittings. Fittings are used to join adjacent lengths of pipes for direction change, also the branch connection in any angle and in size.
UNIFIED SUPPLEMENTARY LEARNING MATERIALS Grade 9 – TECHNICAL DRAFTING __________________________________________________________________________________ __________________________________________________________________________________________ Page 7 (This is a Government Property. Not for Sale.) Connections 1. Threaded Connection – pipes connected by thread. 2. Soldered Fittings- uses solder to connect the pipes. 3. Bolded Flanges- joints bolted together, 4. Solvent cement weld connections – uses chemicals to connect the pipes The water Line Layout The sanitary plumbing installation referred to water distribution as the water channel to plumbing fixtures and the pipes and fittings for sewage disposal referred to the sanitary installation. Both should use a durable pipe like aluminum and brass, although there are PVC that are durable also. The outside pipe connections can use more durable pipes as it exposes to sun and rain. The amount of water distributed to the house is measured by the water meter. The corporation stop connects to the street pipe and the gate valve controls the flow of water coming inside the house. Use the elbows in connecting angled-direction pipes like in the lavatory, water closet, sink, and shower. Clean potable water is drawn with the use of visible and 2 short dashes and the sanitary line uses a bold line, fixtures are drawn using the symbol itself. Vent pipes use a bold hidden line. Procedure on how to draw a plumbing layout of hot and cold water 1. From the given floor plan, draw first the water supply from the street where the main pipe source is connected and then draw fixtures symbols to any location that suits best for their use. 2. Draw the line connection from the main source pipeline then locate the gate valve and the meter. Remember that meter should be near the gate. 3. Draw the pipe fittings and fixtures and list down the specification of the material used. 4. Complete the water layout by darkening the lines, list down the abbreviation use for each fixture and complete the legend for an easy understanding. ACTIVITIES Activity 1.1: Drawing Symbols used in drafting a hot and cold water distribution system based on the standard of Clean Water Act and Plumbing Code Directions: Draw a plumbing layout of a Toilet and bath Tools and Materials Needed: ⮚ Triangles and Scale ⮚ Pencil ⮚ Ruler ⮚ Bond Paper (short size only)
UNIFIED SUPPLEMENTARY LEARNING MATERIALS Grade 9 – TECHNICAL DRAFTING __________________________________________________________________________________ __________________________________________________________________________________________ Page 8 (This is a Government Property. Not for Sale.) ⮚ Eraser ⮚ Drawing table ⮚ T- square Steps: 1. Prepare the needed materials. 2. Fasten your drawing paper to the drawing table. 3. Write the needed information in your drawing paper. 4. Draw the given floor plan of a toilet and bath. 5. Draft the sanitary and plumbing layout of the toilet and bath. 6. Finalize the drawing by erasing unnecessary lines. Activity 1.2: Draft a hot and cold water distribution following the plumbing and water act code. Directions: Layout a Hot and Cold water distribution system based on the standard of Clean Water Act and Plumbing Code. Materials Needed: ❖ Triangles and Scale ❖ Ruler ❖ Pencil ❖ Eraser ❖ Bond Paper ❖ Masking Tape ❖ T- square Procedure: 1. Draw the given floor plan in a scale of 1:100 bond papers with the scale of 1:100m. 2. Copy the room distribution with proper dimensions. 3. Draft the hot and cold plumbing layout using the symbols shown above.
UNIFIED SUPPLEMENTARY LEARNING MATERIALS Grade 9 – TECHNICAL DRAFTING __________________________________________________________________________________ __________________________________________________________________________________________ Page 9 (This is a Government Property. Not for Sale.) Scale 1:100m Guide Questions 1. The symbols and abbreviation can be found at the table above. 2. Remember that the size of pipes needed in plumbing clean water is smaller in diameter compared to the sewage disposal piping. REMEMBER 1. Remember that the Plumbing System performs two major functions and for this we use different colors in the lay outing to avoid the interconnection of the clean water pipe line to that of the sewage pipe line. 2. Pipes are used for the distribution of clean water and an outlet that brings out the sewage disposal, copper, brass, plastic, and iron are the most common types. 3. To lessen your time in drafting the plumbing layout it is very necessary to know the Plumbing and fitting symbols. 4. Use other colors for isolation of pipes for easy reading and understanding the plan, and don’t forget to place valves in a section of pipe line layout. (use as access for repair and checking). 5. Consider the pipeline so it is necessary to choose a material that will not break out easily that could cause problems like leak and other water supply disturbances also the availability of the fittings and materials. The higher the pressure of the water the higher the risk of pipe breakout.
UNIFIED SUPPLEMENTARY LEARNING MATERIALS Grade 9 – TECHNICAL DRAFTING __________________________________________________________________________________ __________________________________________________________________________________________ Page 10 (This is a Government Property. Not for Sale.) CHECKING YOUR UNDERSTANDING POST TEST Choose the letter of the correct answer. 1. It refers to the water supply and drainage of water waste disposal coming from the house is called_____. A. Piping layout B. Water supply C. Scale layout D. Sewage disposal 2. What fittings can you suggest if there is a need to reduce the size of the opening of pipes? A. Bushing B, Cap C. Reducer D. Unions 3. If someone asks you what is the material needed to close the system and connect pipes what will be your answer? A. Bushing B, Cap C. Plug D. Unions 4. If you want to use hot water, we open this plumbing component which changes cold water to hot water. A. Adding hot water to cold water C. Mixing with chemicals B. By adding temperature to the water. D. Use of water heater 5. Pipes which are lightweight but are made of strong metal are better except for one. A. Last long C. No after taste B. Never breaks D. Smooth Reflections: Directions: Based on what you have learned answer the questions in a separate sheet of paper. 1. Is the topic informative? 2. Looking at the pipeline of your water supply of potable water, was it done by a professional plumber? How could you tell? 3. With your knowledge in laying out pipes for hot and cold, and by looking at the line distribution of water in your T&B, is it possible to install a hot and cold water system?
UNIFIED SUPPLEMENTARY LEARNING MATERIALS Grade 9 – TECHNICAL DRAFTING __________________________________________________________________________________ __________________________________________________________________________________________ Page 11 (This is a Government Property. Not for Sale.) REFERENCES 1. “Plumbing Symbol” Accessed March 10, 2021,Retrieved from https://www.google.com/search?q=plumbing+symbols&tbm=isch&hl=en&sa=X&ved=2 ahUKEwinsYCin6vvAhVIapQKHXW_CLEQrNwCKAB6BQgBENcB&biw=1343&bih=8 76#imgrc=c5HhdDb4Gzq-JM 2. “residential plumbing plans Drawings” Accessed March 10, 2021, Retrieved from https://www.conceptdraw.com/examples/residential-plumbing-plan-drawings 3. “building design/bathroom layout design, Accessed March 13 2021, Retrieved fromhttps://www.mrfixitbali.com/building-design/bathroom-design/bathroom-layoutdesign-169.html 4. “plumbing”Accessed.March 13.2021,Retrievefromhttps://www.slideshare.net/CarlaFaner/plumbing-30676379 5. “Module 6 ,module 4, draft sanitary and plumbing layout and details, Accessed, March 13, 2021, Retrieved fromhttps://www.slideshare.net/gilbertbautista3/module-6-module4-draft-sanitary-and-plumbing-layout-and-details 6. “water supply system layout and pipework”,Accessed March 16, 2021,Retieved from http://www.level.org.nz/water/water-supply/system-layout-and-pipework/ ANSWER KEY TEST - PRE D C D D A LOOKING BACK D D A B A CHECKING YOUR UNDERSTANDING TEST - POST D C B D D