Overview

Inconel® is a nickel-based alloy with superior corrosion resistance and temperature performance to stainless steel. Inconel® Bellows using edge welded technology are designed for applications that require excellent corrosion resistance properties, such as valve or down-hole tool applications that are exposed to hydrogen sulfide. The excellent high temperature survivability and custom design of BellowsTech Inconel bellows make them a cost-effective solution for assemblies requiring a flexible connection that can withstand temperatures greater than 1000°F, with Alloy 625 offering the highest standard temperature rating. With the flexibility to customize, BellowsTech can manufacture and weld custom fittings, flanges, and weld rings to its Inconel bellows to make customer installations easy and seamless.  A variety of diaphragm options and thicknesses as well as the ability to manufacture multi-ply bellows construction increases the temperature and strength capabilities while maintaining most of its stroke length.  BellowsTech works with customers to choose the right alloy based on the customer’s requirements.

*INCONEL® is a registered trademark of  Special Metals Corporation.

Bellows DD Form12-21B

Specifications – Inconel Bellows – PDF

Material Alloy 625 (Inconel® 625)+ or Alloy 718 (Inconel® 718)+, Alloy X750 (Incone®l X750)
Thickness 0.004″ and up every 0.001″
Standard Leak Rate <1×10-5 std CC He/sec
Size Ranges
Outside Diameter 0.358″ (9.0932mm) to 22.205″ (564mm)*
Inside Diameter 0.198″ (5.029mm) to 19.921″ (505.99mm)*
Shapes Round standard.  Non-Round Available; Contact Factory.
Length Up to 96 inches (244 cm)

*For other dimensional requirements, contact the factory

edge-welded-bellows-examples

Typical Industries

Benefits

Oil & Gas Excellent Corrosion Resistance
Test Stands High Strength
High Temperature Exhausts High Temperature

There are over 90 Standard Diaphragm sizes available.

View the entire die list here and quickly choose the best fitting bellows mechanical seal for your application