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Edge-Welded Bellows

Edge-Welded Bellows

Pressure resistance, flexibility, sparing character, long life, corrosion resistance, sealing performance, cleanness, heat resistance, bellows diaphragm, span, diaphragm ID, flat, contour, fipple death, thickness convolution pitch, OD, flat, diaphragm OD, core, pitch, y washer type, corrugated type, washer type

Edge-Welded Bellows
Edge-Welded Bellows, also known as welded plate bellows, and welded diaphragm bellows, are essential engineered components in ultra-high vacuum and high pressure sealing applications. Their primary function is to compensate for system vacuum and pressure differentials during normal and upset operations. Secondary functions include mechanical sealing, vibration, isolation, compensation for relative movement between pipe sections, and reduction in forces and induced moments at various connections. In the bellows industry, edge welded bellows stand out in their ability to control large amounts of motion precisely and repeatedly.
Edge-Welded Bellows
Standard Specification
Internal Pressure Vaccum
External Pressure SAtmospheric Pressure
Operating Temperature Normal Temperature(Baking Temp.Max.250℃)
Leak Test He Gas Leak(5x10-8 mbar Is)
Bellow Material SUS316L, AM350,Hastelloy-C 22
Repetition Life 10,000 100,000 1,000,000
* The material will be changed depend on operation environment. Please refer to follow feature of materials.
Name of parts, End Type
Edge-Welded Bellows
Edge-Welded Bellows
Characteristic of low material
Material Features Operation
Temp.
Heat
Resistance
Strength Corrosion
Austenite Stainless Steel
SUS304L Good resistance, except hydrochlrics &halogen salts Low 'C' prevents carbide precipitation.
Use for cryogenic connectors, expansion joints & low stress couplings
-251℃ ~ +426℃ B B B
SUS316L Austenite Stainless Steel.Low carbon version of SUS316 which has excelent resistance to cryogenic and corrosive -251℃ ~ +426℃ B B B+
Precipitation Hardening Stainless Steel
AM350 Cr-Ni-Mo precipitation hardening semi-austenitestainless steel. Best choice for high pressure,longlife requirement of high spring raterequirement. Magnetic application -73℃ ~ +426℃ C A+ B
High Temperature, Nickel Base Corrosion Resistant Alloys
HastelloyC-22 For special application such as acid resistance and high pressure resistance -250℃ ~
+ 982℃
A A A
Welded Bellows Mold List