Double Sphere Rubber Expansion Joints For Pipe , DN80 Rubber Compensator

DN80 Rubber Expansion Joint different size

PTFE Bellows/Expansion Joint

To compensate for length changes in pipelines expansion bends, stuffing box compensators or expansion bellows are used. Bellows have proved particulaly suitable for lined pipe which may be subjected to shock and vibration. They also accomodate axial misalignment. Further advantages include simple space-saving design and speedy installation.

Typical Applications

Chemical Engineering-PTFE is employed in all cases where corrosive substances are used and where conventional materials create sealing problems. Glass apparatus is an example. In this type of equipment, PTFE is used for expansion bellows, which are designed to compensate for mechanical and thermal changes, flexible tubing, seals, glandless valves, turbine stirrers, etc.

PTFE Bellows (Normal type):
l Nominal Diameter (mm/in.): DN 15~DN1600 (NPS1/2~NPS64)
l Fatigue frequency:≥5000 times
l Operating temperature:≤200°C

PTFE Bellows with steel shield: TYPE A
l Nominal Diameter (mm/in.): DN 15~DN1600 (NPS1/2~NPS64)
l Fatigue frequency:≥10000 times
l Operating temperature:≤200°C

PTFE Bellows with stainless steel nets: TYPE B
l Nominal Diameter (mm/in.): DN 15~DN1600 (NPS1/2~NPS64)
l Fatigue frequency:≥10000 times
l Operating temperature:≤200°C

PTFE Bellows for Vacuum resistance (Negative pressure):
l Operation Pressure: -0.1MPa(-1bar)
l Nominal Diameter (mm/in.): DN 15~DN1000 (NPS1/2~NPS39)
l Fatigue frequency:≥10000 times
l Operating temperature:≤200°C