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Forged Steel Bellows Seal Gate Valve

Application
Petroleum, Chemical industry, pharmacy, fertilizer, and power industry 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.

Technical specification
Design standard: DIN 3352/GB/T122234-2007
Face to face dimension: DIN 3202/GB/T1221-2005
Flange standard: DIN 2543-2545/HG/T20592-97
Test & inspection: DIN 3230/JB/T9092-99


NO.

Part name

Material

1

Body

A105N、F304、F316

2

Seat

304、Stellite

3

Disc

20Cr13、F304、F316

4

Stem

20Cr13、F304、F316

5

Bellow assemble

S.S304、S.S316L

6

Gasket

Flexible graphite + stainless steel

7

Packing

Flexible graphite

8

Bolt

ASTM 194-B7、A193-B8

9

Jack bolt

45#、F304、F316

10

Jack bolt

ASTM 194-2H、A194-8

11

Nut

ASTM 193-B7、A193-B8

12

Gland flange

20Cr13、F304、F316

13

Gland

A105N、F304、F316

14

Stem nut

Copper alloy、D2、BL2

15

Hand wheel

KTH300-06

16

Cap

45#

17

Cover

A105N、F304、F316

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