Flanges used in piping (orifice, threaded, slip-on, blind, weld neck, socket, lap-joint, and reducing) are available with a variety of facings, such as raised, flat, and ring-joint. A barb , which connects flexible hose or tubing to pipes, typically has a male-threaded end which mates with female threads. The other end of the fitting has a single- or multi-barbed tube—a long tapered cone with ridges, which is inserted into a flexible hose. The nipple is a short stub of a pipe that has a male pipe thread at each end or at one end. The swage is like reducers but small in size and used to connect pipes to smaller screwed or socket welded pipes. Like reducers, they are also available in concentric & eccentric types.

china pipe fittings

To an uneducated homeowner, pipe fittings are as numerous and confusing as choosing the right screw or nail for a construction project. The materials vary and the specific purpose, although precise, seems daunting to figure out. Our plumbers in Houston & Rosenberg can help repair or repipe your yard. We can help repair and repipe gas lines and water lines, whatever you need, our plumbers can help!

Fittings for central vacuum systems are similar to DWV fittings, but are usually of thinner and lighter construction because the weight of the materials conveyed is less. Vacuum-system designs share with DWV designs the need to eliminate internal ridges, burrs, sharp turns, or other obstructions which might create clogs. Non-return or check valves allow free flow of a fluid in one direction, but prevent its flow in a reverse direction. They are often seen in drainage or sewage systems, but may also be used in pressurized systems. Isolation valves are used to temporarily disconnect part of a piping system, to allow maintenance or repair, for example.

Male adapters contain male threads and female adapters contains female threads. One end of adapter is plain which is glued or welded or soldered to the plain pipe end. These are connected when there are 4 pipes are meeting at a point. These fittings generate more amount of stress on pipe as the temperature changes, because they are located at the center of four connection points. Cross fittings are generally used for fire sprinkler systems.

Ace Rewards members spending $50 or more are eligible to receive free Next Day delivery on in-stock orders. Orders must be placed on days the store is open, before 4pm local time or 2 hours before store closing time, whichever is earlier. Just take a look at all that we have to offer, and if you can’t find what you need, please email us, and our Customer Service Specialists will happily assist you. Above a certain velocity, the laminar ow of the oil becomes a turbulent ow. Turbulent flows lead to greater heat generation in the system, with consequential losses of pressure and performance.

Fasteners commonly used with piping are a stud bolt with nuts ; a machine bolt and nut; or a powder-actuated tool fastener . This fitting (also known as a “bungalow fitting” or a “cottage fitting”) is a sanitary tee that allows two trap arms to be connected at the same level. Clean-outs are fittings with removable elements, allowing access to drains without the removal of plumbing fixtures.

They can be tted either into the screwed joint or into specially made devices. In either case the cutting ring and its edges are moved axially as the union nut is tightened. 900#, 1500#, and 2500# stainless steel flanges are available. Call or email us for those or any custom stainless steel flanges. 18″, 24″, 36″, and 48″ lengths are stocked in addition to the standard stainless steel nipples.

McAlpine valves, such as the McAlpine VP50P air admittance valve, features a dual-fit synthetic rubber finger seal for 3” or 4” soil pipe. Direct the flow of water outside a property with overflow pipes. Our range of PVC overflow pipes are available to buy in 30m, in either black or white. Aquaflow pipes come in a variety of sizes and shapes to complement the property design.

A reducer can also be used either as a nozzle or diffuser, depending on the mach number of the flow. Dielectric unions, with dielectric insulation, separate dissimilar metals to prevent galvanic corrosion. When two dissimilar metals are in contact with an electrically conductive solution , they form an electrochemical couple which generates a voltage by electrolysis. When the metals are in direct contact with each other, the electric current from one to the other also moves metallic ions from one to the other; this dissolves one metal, depositing it on the other. A dielectric union breaks the electrical path with a plastic liner between its halves, limiting galvanic corrosion.

Increase the length or join solvent weld pipe together with Magicflex solvent elbows and connectors from Wirquin. All our solvent weld connectors can bend and stay fixed when welded. Spend over £25 online and receive free delivery with your order or click and collect from your closest Toolstation branch. When compared to other connection types, press fittings have the advantages of installation speed and safety. Pressing a stainless steel fitting can be completed within 5 seconds with the correct equipment.

Long elbows are used in low-pressure gravity-fed systems and other applications where low turbulence and minimum deposition of entrained solids are of concern. They are available in acrylonitrile butadiene styrene , polyvinyl chloride , chlorinated polyvinyl chloride , and copper, and are used in DWV systems, sewage, and central vacuum systems. This section discusses fittings primarily used in pressurized piping systems, though there is some overlap with fittings for low-pressure or non-pressurized systems. Specialized fittings for the latter setups are discussed in the next major subsection.

Quality GroovJoint fittings carry approvals by UL, ULC, and NSF-61. Flexible fittings may also be used to reduce transmission of vibration into the DWV system. Although the fittings are not cheap, they are reasonably durable .

The larger-diameter hub was also called a “bell” because of its shape. Adequate ventilation is essential to remove metal fumes from welding operations, and personal protective equipment must be worn. Because the high temperatures during welding can often generate intense ultraviolet light, dark goggles or full face shields must be used to protect the eyes.