Plumbing Code PDF

Revised National Plumbing Code ME 530 Design of Building Piping System & Air Conditioning Duct Works Mechanical Engineering Department  ME 530: Design of Building Piping System & Air Conditioning Duct Works National Plumbing Code Plumbing Materials & Fixtures Pipe Materials...

Revised National Plumbing Code ME 530 Design of Building Piping System & Air Conditioning Duct Works Mechanical Engineering Department  ME 530: Design of Building Piping System & Air Conditioning Duct Works National Plumbing Code Plumbing Materials & Fixtures Pipe Materials PVC (Polyvinyl Chloride) ABS (Acrylonitrile-Butadiene-Styrene) PVC pipes are also made from a thermoplastic materials These are pipes made from ABS which is a type of and are also commonly used in residential and thermoplastic resin. It is commonly used in DWV commercial piping systems. Commonly, PVC pipes are (drain-waste vent) systems due to its light weight color white in color but in other standards it can be; and economic advantages. Blue – Potable Water Piping Gray, Orange or Brown – Drainpipes  ME 530: Design of Building Piping System & Air Conditioning Duct Works National Plumbing Code Plumbing Materials & Fixtures Pipe Materials PE (Polyethylene) PB (Polybutylene) It is a type of a thermoplastic that is made using ethylene Black oval shaped pipe, commonly used as water gas. This type of pipe has a flexible nature that can service connection from main to meter. These type withstand vibrations on the ground. It has different of pipes are not used currently due to its reaction categories such as HDPE’s, MDPE’s & LDPE with water additives such as chlorine which causes HDPE (High Density Polyethylene) – Can be used in flaking in the interior. hot & cold-water systems, potable water, wastewater, chemical and hazardous waste MDPE (Medium Density Polyethylene) – water supply in residential areas, underground water mains for small buildings. LDPE (Low Density Polyethylene) – UV & Acid Resistant. Irrigation Pipe  ME 530: Design of Building Piping System & Air Conditioning Duct Works National Plumbing Code Plumbing Materials & Fixtures Pipe Materials: Types of Cast Iron Pipes Cast Iron SV Type (Service) XV Type (Heavy Duty) Most popular and generally specified material for Generally used for Extra duty pipe used for drainage system. building installations underground installations Durable, conveniently installed for buildings less Pipe-end fittings than 25-storey high. Spigot & Hub. These are the common end fittings in connecting pipes. Spigot serves as the male end and the hub (“bell”) serves as the female end.  ME 530: Design of Building Piping System & Air Conditioning Duct Works National Plumbing Code Plumbing Materials & Fixtures Pipe Materials: Standard Pipe Cast Iron Pipes Used for a well-fitted hub and spigot connections Double Hub Standard Pipe Preferred when a piece of pipe needed is shorter than 150 cm long. When the pipe is cut, both ends has hub to serve as joint connector Double Hub Single Hub Recommended when the length of a pipe needed is more than 150 cm long wherein cutting is NOT necessary. Single Hub Hubless Pipe Used in lieu of the single hub to do away with caulking of joints easily connected using neoprene rubber sleeves. Hubless Pipe  ME 530: Design of Building Piping System & Air Conditioning Duct Works National Plumbing Code Plumbing Materials & Fixtures Pipe Supports Adjustable Pipe Clamp Cushioned Pipe Clamp They're used as an efficient and tidy way to restrain, These clamps are commonly used in applications where secure and guide tubing or conduit for a range of vibration damping and protection against pipe movement plumbing, heating and electrical purposes. are crucial. They are effective in reducing noise, absorbing vibrations, and extending the lifespan of pipes.  ME 530: Design of Building Piping System & Air Conditioning Duct Works National Plumbing Code Plumbing Materials & Fixtures Pipe Supports U-bolt Clamp Riser Clamp are used to secure piping to structural members. When Are pipe support in vertical runs of piping (risers) at each the piping is below the structural member, the U-Bolt can floor level. The devices are placed around the pipe, and provide vertical support and restricts lateral movement integral fasteners are then tightened to clamp them onto while allowing for axial movement. the pipe.  ME 530: Design of Building Piping System & Air Conditioning Duct Works National Plumbing Code Plumbing Materials & Fixtures Pipe Supports Two-bolt/Three-bolt Pipe Clamp Yoke type Clamp Two-bolt clamps are used for hanging bare pipes without Yoke clamps have higher allowable loads than a bolted any insulation. Their load carrying capacity is usually not clamp. Secondarily, yoke style clamps are effective in large. areas where the bottom part of the pipe is in close proximity to structural steel or other pipe components. Three-bolt clamps are used in plumber fitting for suspending insulated lines carrying high-temperature fluids.  ME 530: Design of Building Piping System & Air Conditioning Duct Works National Plumbing Code Plumbing Materials & Fixtures Pipe Supports These are standards that can be followed in installing pipe supports for a plumbing system. Horizontal Pipe Supports Vertical Joints occur Support location Compression Gasket - 0.45 m from hub or Bell & spigot hubless: - Max: 1.5 m - Every other joint joint. Cast Iron Soil Pipe Every storey or closer - If more than 1.5 m, then - Each horizontal - If more than 1.2 dev’t 3 m. length, each joint branch connection Horizontal Pipe Supports Vertical 0-19 mm 25 mm 38 mm 55 mm dia Screwed Pipe (IPS) Every other storey 3m 3.6 m Plastic Pipe Every 1 m 1.8 m 3m  ME 530: Design of Building Piping System & Air Conditioning Duct Works National Plumbing Code Plumbing Materials & Fixtures Pipe Supports These are some guidelines to follow when it comes to pipe supports. Hangers and straps shall not compress, distort, cut or abrade the piping and shall allow free movement of the pipe MAXIMUM intervals for pipe supports: 4 feet (1.2 m) Vertical piping ng shall be maintained between floors with the use of a mid-storey guide. Pipe Surfaces subject to corrosion or mechanical damage shall be protected with: - Inside lining - Outside coating - Proper bottom bedding - Top shielding with concrete block  ME 530: Design of Building Piping System & Air Conditioning Duct Works National Plumbing Code Plumbing Materials & Fixtures Thrust Blocks In lines with rubber gasketed joints, thrust blocks shall be installed at all; Changes in direction as at tees and bends Changes in size, as at reducers; Stops and at dead ends At valves, where thrusts (change in pressure) may be expected.  ME 530: Design of Building Piping System & Air Conditioning Duct Works National Plumbing Code Plumbing Materials & Fixtures Pipe Fittings Cap BLANK Flange vs BLIND Flange A fitting, screwed or caulked over the end of a piper Blank flanges are used when a pipe needs to be sealed for closing a pipe end. off, but there is still fluid or gas passing through the pipe. (Temporarily Seal) Blind flanges are used when a pipe needs to be sealed off permanently, and no fluid or gas needs to pass through the pipe. (Permanently Sealed)  ME 530: Design of Building Piping System & Air Conditioning Duct Works National Plumbing Code Plumbing Materials & Fixtures Pipe Fittings Double-bend Fitting (S-type) Elbow A fitting with adjacent reverse bends and shaped Used to change the angle or direction of the pipe run. Most like the letter “S”. Often used to create a water seal commonly in 90 degrees and 45 degree turns. The sweep in drain pipes. of the fitting describes how fast a transition or change in direction is made.  ME 530: Design of Building Piping System & Air Conditioning Duct Works National Plumbing Code Plumbing Materials & Fixtures Pipe Fittings Wye Tapped Tee Used primarily to gain inside access to DWV (drain- A tee with the branch tapped to receive a threaded waste-vent) systems pipe or fittings  ME 530: Design of Building Piping System & Air Conditioning Duct Works National Plumbing Code Plumbing Materials & Fixtures Pipe Fittings Pipe Union (Union Patente) Reducers Used to unite pipes which can be detached without Used to join pipes of different diameters. Makes a causing deformation to the pipe. gradual change in diameter.  ME 530: Design of Building Piping System & Air Conditioning Duct Works National Plumbing Code Plumbing Materials & Fixtures Plumbing Fixtures Fixtures Plumbing Unit A receptacle other than a trap in which water or A minimum standard of quantity of plumbing waste may be collected or retained for ultimate fixtures; ex. (1 Water meter, 1 Water Closet, 1 discharge into the plumbing system. lavatory) Plumbing Fixtures Fixture Unit A receptacle other than a trap in which water or A unit of measurement; it is equal to one cubic foot waste may be collected or retained for ultimate of water drained in a 1 ¼ pipe over one minute. discharge into the plumbing system. 1 Fixture Unit = 28.3 liters/min  ME 530: Design of Building Piping System & Air Conditioning Duct Works National Plumbing Code Plumbing Materials & Fixtures Plumbing Fixtures Water Closets Urinals Public Water Closets shall be the elongated bowl 0.3 m (12”) – minimum 0.6 m (24”) – minimum type with open-front seats. distance of urinal from its distance of urinal center center to sidewall to center 0.375 m – maximum distance of water closet or bidet from a center to side wall. Brass or Copper shall not be used for urinal tailpiece or trap. Trough urinals are prohibited 0.75 m – maximum distance of water closet center to center with adjacent fixtures Water Closets with invisible seals are prohibitied.