Forged Steel Bellow Gate Valve

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Technical specification
Design standard: DIN 3352
Face to face dimension: DIN 3202
Flanged ends: DIN 2543-2545
Test & inspection: DIN 3230

Application
Hot oil system, steam system, hot and cold water system etc.

Advantage
1.Bellow seal element. The key part of bellow sealed globe valves is mental bellow. It is the connection between cover and stem with automatic roll welding. The mental bellow can keep the stem part no leakage.
2.Double seal design(bellows+packing). Bellow and packing can protect against leakage and provide a excellent seal.
3.Grease nipple. It can direct lubricate the stem, nut and sleeve.
4.Ergonomic hand wheel. It provide longer service life and easier operation.

Main part materials

Part name

Material

Body

A105N、F304、F316

Seat

SS304、Stellite

Disc

A105N+ 2Cr13/304

Stem

2Cr13、F304、F316

Bellow assemble

SS304、SS316

Gasket

Flexible graphite + stainless steel

Packing

Flexible graphite

Bolt

ASTM 193-B7、A193-B8、A193-B8M

Pin

45#、F304、F316

Bolt

ASTM 193-B7、A193-B8、A193-B8M

Stem nut

ASTM 194-2H、A194-8、A194-8M

Packing bushing

2Cr13、F304、F316

Packing gland

A105N、F304、F316

Stem nut

Copper alloy、D2

Hand wheel

1025/KTH330

Cap

45#

Bonnet

A105N、F304、F316


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