AS-BM85 metal bellow mechanical seal

Description：
This type is to replace BURGMANN  MFL85N seal

Suggested Operation Limits:
Temperature:-20℃-220℃
Speed:≦20M/S
Pressure:≦2.0Mpa
 

Combined Material:
Stationary Ring: Carbon/Silicon Carbide/TC
Rotary Ring: Silicon Carbide/TC/Ceramic
Seat Type:Standard AS-S09

Features：
For unstepped shafts
Single seal
Balanced
Independent of direction of rotation
Metal bellows rotating

Advantages：
For extreme temperature ranges
No dynamically loaded O-Ring
Self cleaning effect
Short installation length possible
pumping screw for highly viscous media available (dependent on direction of rotation).

Recommended applications：
Process industry
Oil and gas industry
Refining technology
Petrochemical industry
Chemical industry
Hot media
Cold media
Highly viscous media
Pumps
Special rotating equipment

Background knowledge:
First step of production processes of welded metal bellows：punching and forming
Punching and forming of wave plates of welded metal bellows can be completed at one time. Shape of wave plates has a great influence on the performance of corrugated bone.There are currently two kinds of molds. One is a metal mold, and the other is a polyurethane rubber punching and forming mold.
Since the end face of the former die is a formed curved surface which is high precision accuracy, it is difficult to manufacture and rectify the gap between the concave and convex die blades.
The latter has a simpler structure which means easier manufacture. Besides，during punching and forming process, displacement between concave and convex dies is small, thus wave plates are generally not scratched.