Bellows Control Valve

The upper valve cover adopts metal bellows sealing structure. It can completely eliminate the possibility of the process medium leaking out from the movement gap of the pole. Due to the deformation of the bellows element itself and outstanding resistance to aging. It completely overcomes the weaknesses of packing aging and temperature difference sensitivity that usually exist in packing seal valves. Secondly, the use of bellows packing-double sealing structure has better safety and reliability.

Technical data:

-DN:40-400 -Pressure:PN16-110
ANSI Class 150-600
-Connection standard: GBDIN, ANSIJIS, etc. -Temperature: -196~+566℃ -Cv range: 20-3200
– Flow characteristics: Equal percentage, linear – Leakage: VV and V class

Material:

– Body: carbon steel, stainless steel, special alloy steel – Trim: stainless steel, stainless steel + hardened treatment.
Stainless steel + cemented carbide, special alloy steel stainless steel + PTFE

Optional:

– Anti-cavitation depressurization trims

-Luft low leakage packing

– Oil-free degreasing treatment

-No copper treatment

Features:

-Safe and reliable
-Double sealed design
– Shutdown capability reaches V, V and V levels
-High flow design
– The wire channel has been optimized, which is more conducive to flow stability
-Compact multi-spring pneumatic actuator
– Optimum component commonality between all sizes