China Hot selling Brass Male Threaded Union Pipe Fitting Coupling

Product Description

Material Stainless steel 304/ 304L/316/316L/201
Standard Thread:BSPT(ISO 7/1),NPT(ASME B16.3)
  Dimension:ISO 49,DIN 2950,EN15712
Physical Property Tensile strength>=350Mpa,Elongation>=10%,Hardness<=150HB
Testing Pressure 500PSI
Working Pressure 300PSI
Model Fittings:Elbow,Tees,Crosses,Bends,Unions,Bushing,Lateral Braches,Sockets,Nipples
Valve: Ball valve,Gate Valve,Check valve,globe valve
Connection Male,Female,Push-fit,compression
Shape Equal,Reducing,2pcs,3pcs
Certificate ISO9001,CSA,NSF,CE
Application Suitable for fire piping system,air,oil,water supply
  Buyer’s drawing or designs are available
Package Cartons without pallet
  Cartons with pallet
  Double woven bags
  Or as buyer’s requirements
Delivery Details According to the quantities and specifications of each order
  Normal delivery times is from 30 to 45 days after receiving the deposit

FAQ
1. Q: Are you factory or trading company?
 A: We are both, we have our own factory and the trading company based on our factory.
2. Q: Could you produce according to the drawings?
A: We could produce according to the provided drawings, 3. Q: Could you provide samples?
A: Sure. We could send you free samples, while the freight will be paid by the clients. Any questions, pls feel free to contact us.
4.Q: What is your payment terms?
 A: 30% as deposite ,70%beofore shipping by T/T or L/C.
 5.Q: How do you pack products?
 firstly, pcs in plastic bags, and then cartons, and wooden pallet if bulk cartons.
6. Q:What is your available shipment port? 
  Our company is nearby HangZhou and ZheJiang  port,and of course, other ports in China are also available,please feel free to let us know. /* March 10, 2571 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

compression coupling

Identifying Leaks or Improper Sealing in a Compression Coupling

Compression couplings are designed to create a tight and secure seal between pipes. However, leaks or improper sealing can still occur. Here are signs to watch for and steps to address them:

  • Water Dripping: If you notice water dripping from the coupling joint, it’s a clear sign of a leak. Inspect the area closely to identify the source of the leak.
  • Pooling Water: Pools of water forming around the coupling can indicate a leak. This can lead to water damage and should be addressed promptly.
  • Water Stains: Water stains on nearby surfaces can be a result of a slow leak from the coupling. Check for discoloration or dampness.
  • Reduced Water Pressure: Leaks can lead to a decrease in water pressure in the affected area. If you experience sudden pressure drops, inspect the couplings for leaks.
  • Audible Hissing or Whistling: Sometimes, leaks can produce a hissing or whistling sound. Listen carefully near the coupling to detect any unusual noises.

If you suspect a leak or improper sealing in a compression coupling, here’s what you can do:

  • Tighten the Coupling: If the coupling is slightly loose, use a wrench to gently tighten it. Avoid over-tightening, as it could damage the coupling or pipes.
  • Check the O-Ring or Gasket: Compression couplings often use rubber O-rings or gaskets for sealing. Inspect these components for damage or wear. Replace them if necessary.
  • Inspect Pipe Ends: Ensure that the pipe ends are clean, smooth, and free from debris. Rough or uneven pipe ends can prevent a proper seal.
  • Reassemble and Test: Disassemble the coupling, inspect all parts, and reassemble it carefully. Turn on the water supply and monitor for any signs of leakage.
  • Consider Professional Help: If leaks persist or you’re unsure about addressing the issue, it’s recommended to seek assistance from a professional plumber.

Regular inspection and maintenance of compression couplings can help prevent leaks and ensure the proper functioning of plumbing systems.

compression coupling

Handling Thermal Expansion and Contraction with Compression Couplings

Compression couplings are designed to accommodate thermal expansion and contraction in pipes, which can occur due to temperature changes. Here’s how they handle these changes:

When pipes are exposed to higher temperatures, they expand in length. Compression couplings feature a flexible design that allows them to adjust their length to match the expansion of the pipes. The coupling’s compressible components, such as the rubber or elastomeric sealing elements, can deform slightly to absorb the increased length of the pipe without causing stress or distortion.

Conversely, when pipes are subjected to lower temperatures, they contract in length. The flexible nature of compression couplings allows them to contract along with the pipes, preventing any undue stress or pressure on the pipe connections. The compressible elements within the coupling can adjust to the reduced length of the pipe, ensuring a tight and secure seal.

This ability to accommodate thermal expansion and contraction is crucial in preventing damage to the pipes, coupling, and the overall plumbing system. Compression couplings provide a reliable and effective solution for maintaining the integrity of the pipes and connections while withstanding temperature fluctuations.

compression coupling

Challenges of Improper Compression Coupling Installation and Prevention

Improper installation of compression couplings can lead to several challenges, but these can be avoided through proper practices:

  • Leakage: Inadequate tightening or incorrect positioning of components can result in leaks. Ensure proper alignment and use appropriate tools for secure tightening.
  • Over-Tightening: Excessive force during nut tightening can damage the coupling or pipes. Use a calibrated torque wrench to achieve the recommended tightening torque.
  • Under-Tightening: Inadequate tightening can cause leaks due to insufficient compression of the sealing components. Use the appropriate wrenches to achieve the correct tightness.
  • Ferrule Damage: Incorrect placement or excessive force on the ferrule can lead to damage, compromising the sealing integrity. Follow manufacturer guidelines for proper ferrule installation.
  • Incorrect Pipe Insertion: Insufficient insertion depth of pipes into the coupling body can result in leaks. Ensure pipes are fully inserted according to manufacturer instructions.

Proper training, adherence to manufacturer instructions, and careful attention to detail during installation can help avoid these challenges and ensure a reliable and leak-free compression coupling connection.

China Hot selling Brass Male Threaded Union Pipe Fitting Coupling  China Hot selling Brass Male Threaded Union Pipe Fitting Coupling
editor by CX 2024-01-03