What are the common piping and plumbing fittings?
Common Piping & Plumbing Fittings – Complete List & Function
1. Basic Pipe Direction Fittings
● Elbow (90° elbow / 45° elbow / 180° return bend): Change the flow direction of pipes.
● Street Elbow: One end male thread, one end female thread; for tight corner installation.
2. Branch & Split Fittings
● Tee (Equal tee / Reducing tee): Split or combine fluid flow into 3 directions.
● Cross / Four-way fitting: Connect four pipe lines at one junction.
● Lateral Tee / Wye (Y-fitting): Angled branch, lower flow resistance for drainage.
3. Reducing & Size Transition Fittings
● Reducer (Concentric reducer / Eccentric reducer): Connect pipes of different diameters; reduce pipe size.
● Bushing / Reducing Bushing: Small thread reducer for threaded pipelines.
● Coupling / Sleeve: Join two pipes of the same diameter straightly.
4. End Closure & Termination Fittings
● Cap / End Cap: Seal the end of a pipe permanently.
● Plug / Stop Plug: Temporary or threaded pipe end closure.
Union
● Detachable joint for easy pipe disassembly and maintenance.
5. Threaded & Connection Fittings
● Nipple (Short nipple / Long nipple): Short threaded pipe for connecting fittings.
● Adapter (Male adapter / Female adapter): Convert different connection types: thread × socket, male × female.
● Flange: Bolted connection for large diameter, high pressure, easy dismantling.
● Compression Fitting: Seal by compression ring; used for copper tube, stainless steel tube.
6. Plumbing Drainage Special Fittings
● P-trap / S-trap: Water seal to prevent sewer odor backflow (sink, toilet).
● Vent Pipe Fitting / Air Admittance Valve: Balance drainage pressure, avoid vacuum blockage.
● Cleanout: Reserved port for pipeline dredging and inspection.
7. Stainless Steel & Modern Pipe Fittings
● Press Fit Fittings (Crimp fittings): Stainless steel thin-wall pipe connection, no welding.
● Grooved Fittings / Victaulic coupling: Groove clamp connection for fire fighting & large industrial pipes.
● Sanitary Quick-fit Fittings (Tri-clamp): Food, beverage, pharmaceutical pipeline; hygienic no-dead-angle design.
8. Valve & Control Related Fittings
● Elbow with valve, Tee with valve: Integrate flow control at pipe junction.
● Strainer fitting: Filter impurities in water or industrial fluid.
Jianhao Pipe Fittings Co., Ltd. is located in Longwan District, Wenzhou, a core hub for China’s stainless steel pipe fittings manufacturing, with superior location, convenient transportation and mature industrial supporting facilities.
Adhering to the concept of quality first, our company has successfully obtained three authoritative certifications: CE, EAC and ISO9001, demonstrating our strong strength in product quality control and production management, and fully complying with international quality standards and industry norms.
