Edge-Welded Metal Bellows Seals
Low-Temperature and High-Temperature bellows seals assure low emissions and optimized
Mean-Time-Between-Planned-Maintenance (MTBPM).
• Superior Bellows Design
These seals are manufactured with a 45º tilt edge at the bellows' inside
diameter to disperse stresses and maximize operating life.
• Superior Plate Shape
The plate shape used by FBU is called a nesting ripple. With a
three-sweep radius, this plate design allows the bellows device to be flexed
repeatedly without the metal being stressed beyond its endurance limit.
• Self-Cleaning Design
Rotating bellows throw off suspended particles that clog spring-type seals.
This self-cleaning action eliminates the need for external flushing, filters or
cyclone separators and their associated costs.
• World-class Bellows Manufacture
Our bellows production facility has an outstanding manufacturing process with state-of-the-art stamping,
welding and testing technology.
• Application Flexibility
A wide range of metallurgies, face combinations and packing materials are used to seal a variety of
demanding applications.
Performance Capabilities
Pressure
Vacuum to 25 bar / 360 psi
Up to 25 m/s / 5,000 fpm
Temperature
-75°C to +290°C / -100°F to +550°F
About FBU
• FBU was established in 2007, is specialized in designing, developing, and manufacturing mechanical seals and sealing support system.
Testing Capability
• Secondary dimension image measuring instrument, digital display altimeter, spring power tester, shore hardness tester, plane flat crystal, outer diameter micrometer, inner diameter dial gauge, caliper with table, etc advanced first-class testing equipment is guarantee of product quality and reliability!
Certificate of Approval
• FBU has been audited by LRQA ISO 9001: 2015 certification and all products are manufactured in accordance with international standards ISO, ANSl, DIN, and APl.
FAQ:
• Are you a factory or a trade company?
→ We are a factory with more than 13 years industrial experience.
• Where is your company located?
→ We are located in Suzhou, China.
• Do you have a quality management system?
→ We have been audited by LRQA ISO9001:2015 certification and all products are manufactured
in accordance with international standards ISO, ANSI, DIN and API.
• Which payment terms can you accept?
→ T/T, L/C, D/P, Western Union, PayPal.
• How long is the normal delivery time?
→ Within 7-20days. If have stock, it about 2-3days.
• What 's your shipping ways?
→ By sea, by air and by express (DHL, Fedex, UPS, TNT, EMS etc.)
Audited Supplier 
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