valve core bellows

Specifications Excellent stainless steel,Advanced equipment,experienced workers,high precision and high efficient test system,Excellent service

Welded Metal Bellows are mechanical elements taking a shape of a wrinkled tube which is made by welding multiple of very thin metal diaphragms formed by press machine. Its elastic characteristic enables movements on axis direction, angular direction, and horizontal/vertical directions yet maintaining airtight by isolating the interior from the exterior. Welded metal bellows is used as sensitive components, sealing components , medium isolation, pipeline connection, temperature compensator, etc. It has the advantages of  pressure resistance, heat resistance, corrosion resistance, well sealing, etc. Compared with the traditional bellows it has three prominent advantages:The amount of deformation is larger ,Life cycles is longer,Mechanical linear is better.  

Material	Corrosion  Resistance	Operating Temperature (℃)	Yield Stress (kgf/cm2)	Characteristic
3 Series Austenitic Stainless Steel	Well	-250 ~ 800	2700	Widely used in various fields. Non-magnetic.
AM350	General	- 73 ~ 420	4100	Widely used in general. Magnetic.
Inconel 718	Excellent	-250 ~ 700	10300	High strength, heat resistance, corrosion resistance, resilience. Non-magnetic.
Inconel 625	Excellent	-250 ~ 810	4800	Require high strength and corrosion resistance of the environment. Non-magnetic.
Hastelloy C	Well	-250 ~ 980	3580	Anticorrosive very well, and may be suitable for high temperature.  Non-magnetic.

  Specifications of existing products: minimum inner diameter: ≥4mm               maximum outer diameter: ≤500 mm In addition to the existing specifications, Weimai is developing large diameter (> 1 m) welded metal bellows, square and oval shaped bellows, etc. The company will improve overall welding production process for welded metal bellows in the coming future. Canceling the welding process and realizing “Once Forming” bellows, It will be not only guarantee the excellent characteristics of welded bellows, but also eliminate the mechanical property defects and seal defects. Welcome to contact us for consultation.