China Lined Valve Manufacturers & Suppliers

PTFE Lined Double Spherical Rubber Expansion Joint

Place of Origin:
Suitable Packing for Sea/Air Transport
PTFE Lined Double Spherical Rubber Expansion Joint

FVF PTFE Lined Double Spherical Rubber Expansion Joint

  • Expansion joint is also called bellow or compensator.FVF lined expansion joint is composed of metal bellows and PTFE.
  • Its working principle is to use its own elastic deformation function to compensate the axial, angular, lateral and combined displacement of the pipeline due to thermal deformation, mechanical deformation and various mechanical vibrations, and the compensation effect.
  • Expansion joints come with three convolutions as a standard.More than three convolutions can be customized and the more convolutions, the more movement an expansion joint will provide.Various reinforcements of rings and outer shells are available for high pressures, temperatures or vacuum performance. Tie rods and hinges are designed to limit maximum and minimum movements or preventing movement altogether in certain planes.
  • With the functions of pressure resistance, sealing, corrosion resistance, temperature resistance, impact resistance, vibration reduction and noise reduction, it can reduce the deformation of the pipeline and improve the service life of the pipeline.

Product Parameter

Materials of Main Parts

No. Part Name Material List
1 Body Polarized Rubber
2 Inner Lining PTFE
3 Liner Nylon Fabric
4 Flange Steel
5 Rubber Holder Wire-Steel

Technical Specification

TYPE Single Spherical Double Spherical Tri Spherical
Working Pressure Mpa(Kg.f.cm2) 2.0(20) 1.2(12) 0.8(8)
Burst Pressure Mpa(Kg.f.cm2) 6.0(60) 3.5(35) 2.4(24)
Vacuity(mmHg) 100(750) 86.7(650) 53.3(400)
Applicable Temperature -50~180°C
Applicable Medium Strong corrosive medium i.e.hydrochloric acid,Nitric acid,Hydrofluoric acid,Liquid chlorine,Sulfuric acid and Aqua regia etc.

This site uses cookies

We use cookies to collect information about how you use this site. We use this information to make the website work as well as possible and improve our services.