WATER DISTRIBUTION SYSTEM Water Line: Cold Water Line (CWL) Hot Water Line (HWL) Pipes (Material): Galvanized Iron (G.I.) Threaded connection using teflon Cast Iron Pipes Welded/Soldered, Bolted connection (Flanges) PolyVinyl Chloride (PVC) Fusion using solvent cement Fittings: Elbows Tee Union Bushing Reducer Coupling Cap/Plug Nipple

WATER DISTRIBUTION SYSTEM Control Valves: Gate Valves Check Valves Globe Valves Angle Valves Ball Valves Flush Valves

FITTINGSElbows

FITTINGSTee

FITTINGSUnion/Bushing

FITTINGSReducer/Coupling

FITTINGSCap/Plug

FITTINGSNipple

CONTROL VALVESGate Valve

A Gate Valve, or Sluice Valve, as it is sometimes known, is a valve that opens by lifting a round or rectangular gate/wedge out of the path of the fluid. The distinct feature of a gate valve is the sealing surfaces between the gate and seats are planar. The gate faces can form a wedge shape or they can be parallel.

CONTROL VALVESGlobe Valve

A Globe valve is a device for regulating flow in a pipeline, consisting of a movable disk-type element and a stationary ring seat in a generally spherical body.

CONTROL VALVESCheck Valve

A check valve is a mechanical device, a valve, that normally allows fluid (liquid or gas) to flow through it in only one direction. Check valves are two-port valves, meaning they have two openings in the body, one for fluid to enter and the other for fluid to leave. There are various types of check valves used in a wide variety of applications.

CONTROL VALVESCheck Valveswing check valve is a check valve in which the disc, the movable part to block the flow, swings on a hinge or trunnion, either onto the seat to block reverse flow or off the seat to allow forward flow. The seat opening cross-section may be perpendicular to the centerline between the two ports or at an angle. Although swing check valves can come in various sizes, large check valves are often swing check valves.A clapper valve is a type of check valve used in or with firefighting, and has a hinged gate (often with a spring urging it shut) that will only remain open in the outflowing direction.A stop-check valve is a check valve with override control to stop flow regardless of flow direction or pressure. When the valve is open, it acts as a check valve, but the valve can be deliberately shut to stop flow.A lift-check valve is a check valve in which the disc, sometimes called a lift, can be lifted up off its seat by higher pressure of inlet or upstream fluid to allow flow to the outlet or downstream side. A guide keeps motion of the disc on a vertical line, so the valve can later reseat properly. When the pressure is no longer higher, gravity or higher downstream pressure will cause the disc to lower onto its seat, shutting the valve to stop reverse flow.

CONTROL VALVESAngle Valve/Ball Valve

A ball valve (like the butterfly valve, one of a family of valves called quarter turn valves) is a valve that opens by turning a handle attached to a ball inside the valve. The ball has a hole, or port, through the middle so that when the port is in line with both ends of the valve, flow will occur. When the valve is closed, the hole is perpendicular to the ends of the valve, and flow is blocked. The handle position lets you "see" the valve's position.

PIPES AND ACCESSORIES

PLUMBING SYMBOLS