Transcript Chapter 18
Chapter 18 Plumbing Plans Links for Chapter 18 Introduction Schedules and Drawings Water and Sewage Commercial Plumbing Related Web Sites 2 Introduction • Industrial plumbing carries liquids and gases used to manufacture products • Residential plumbing carries fresh water, gas, or liquid and solid waste • Pipes are made of copper, steel, cast iron, or plastic 3 Pipe Types • Plastic pipe – Glued and is commonly called PVC or CPVC – For fresh water and waste • Copper pipe – Joints are soldered – For hot or cold water 4 Pipe Types • Steel pipe – For large water distribution and natural gas – Fittings are threaded • Cast iron – For solid and liquid waste as sewer pipe – More quiet than plastic pipe 5 Sizing Pipe Requirements • Size of water supply based on: – Amount of required water – Supply pressure – Pipe length – Number of stories – Flow pressure at farthest point from source 6 Energy Conservation • Insulate hot water pipes • Run water pipes in insulated spaces and in the interior • Locate water heater in heated space • Select low-flow showerheads • Caulk water pipes and drains at plates • Seal all wall penetrations 7 Universal Plumbing • Sinks – Reachable from a wheelchair (about 34”) – About 6” deep – Use single-level or automatic faucets • Water Closet – Keep 42” of clear space beside the toilet – Use elongated bowl about 15” to 19” high 8 Universal Plumbing • Bathtub – Use single-lever controls – At least 60” long with a 15” seat – Add a slip-resistant bottom and handles • Showers – Minimum length is 60” and width is 30” – Add a slip-resistant bottom and handles 9 Plumbing Schedules • Specific information is given about the location, item, manufacturer and remarks for each fixture • Each item must be carefully specified to avoid potentially costly errors • Schedules should be located near plumbing plans 10 Plumbing Drawings • • • • • Use a different sheet or layer for drawings Fixtures can be place on floor plan drawing Draw plumbing lines thicker than wall lines Break lateral lines if they cross over others Sizes and specifications given as notes 11 CWV SOIL WAST E PIPE Plumbing Drawings COM BINATION WASTE AND VENT SD S VEN T PIPE STO RM DRA IN OR SEW ER COL D WATE R SUPPLY SW SOF T COLD WATER HOT WATER SUPPL Y ICW INDUSTRIA LIZED COLD WATE R OR IHW, H OT WAT ER HOT WA TER RETUR N TEE UP ELBOW UP TEE DOWN ELBOW DOWN GATE VALV E DWS CHILLE D DRINKIN G WATE R F FIR E SERV ICE CHE CK VAL VE SPRINK LER LI NE G M GAS LINE WATER METER T TEM PERED WATER 90 ELBOW 45 ELBOW REDUCER LAT ERAL TEE FLANGED UNION COUPLING SCREWED BELL SPIGOT WELDED SOLDERED TYPES OF CON NECTIONS 12 Water Systems • Water supply to the home is the main line and is 1” plastic pipe • From main line to fixtures, 1/2” pipe is used • Place plumbing fixture above each other • Water heaters are placed on a platform and are gas, oil, solar flat-plate collectors or electric 13 HB Water Systems 1/2" WH 3/4" 3" PVC M METER 1" PVC NOTE: METER TO BE INSIDE IN COLD CLIMATES (CHECK WITH LOCAL CODES) H.B. C.O. 4" C.I. 14 Drainage and Venting • Drainage system allows the solid and liquid waste to move to the sewer line • Minimum slope of 1/4” per foot is required • Vent system allows air to flow so gases dissipate and a vacuum is not created • Use 3” or 4” pipe for drainage 15 Isometric Plumbing Drawings • Also called a plumbing riser diagram • Shows a threedimensional representation of the plumbing layout ROOF VENT VENT FLASHING VENT LOOP VENT LOOP VANITY VENT TO CITY SEWER 3" COPPER PIPE WASHER STANDPIPE CLEANOUT DRAIN VENT 16 Sewage Disposal • Public sewers are located under a street • Septic systems contain a storage tank and absorption field for dispersion of liquids • Percolation tests are used to determine if the soil is accommodating • Sand filter systems are used if the soil is not appropriate for a leach field 17 Sewage Disposal 10' 5' MIN. S S S 1000 GAL. SEPTIC TANK PLAN VIEW PLAN VIEW 18 Commercial Plumbing • Fittings and lines must be clearly shown • Symbols are used to indicate the pipe contents • Pipe size is given with a leader or note • Elevation of the pipe is given in feet and inches with an abbreviation • Legends are given to show special symbols 19 Plumbing CADD Symbols 20 Plumbing CADD Symbols 21 Related Web Sites • American Standard www.americanstandard.com • Aqua Glass - www.aquaglass.com/ • B F Goodrich - www.flowguardgold.com • Nibco - www.nibco.com 22