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Bellow Seal Gate Valve

  • Bellow Seal Gate Valve

The ANSI Standard Bellow Seal Gate Valve with extended stem is widely used to cut pipeline medium.

Details

 

Product structural features:

Bellow Seal Gate Valve is applicable to the cutting and connection of pipelines medium that are used in various industries such as peroleum,chemical industry,pharmacy,chemical fertilizer,electric power industry etc under nominal pressure of CLASS 150-900LBS and working temperature of -29～350℃

 

Main structural features:

1.This product has logical structure,reliable seal ,excellent performance and nice design.

2.The seal surface is build-up welding with Co hard alloy,which is attrition-resistant,corrosion-resistant,has good friction resistant and long life.

3.The stem is quenched and tempered,and its surface is treated by nitriding treatment,thus it has good corrosion resistant and friction resistant.

4.It has double seal capability,thus is more reliable.

5.The stem may show the position of lift,thus it is clearer.

6.The part material,flange and butt weld end dimension may be selected according to current operating condition and users'requirement,so that meet the requirements of various engineering.

 

Technical specificastion
Structural formation BB-BG-OS & Y
Driving maner Hand-operated
Electric-actuated
Design standard API1600、API6D
Face to face ASME B16.10
Flange ends ASME B16.5
Test & inspection API598、API6D

 

Products performance specification
Nominal pressure
（LB）		 (MPa)Shell test (MPa)Sealing test Suitable temp Suitable madium
150 3.0 2.2 ≤350℃ Water oil & gas
300 7.5 5.5
600 15.0 11.0
900 22.5 16.5

 

Main parts materials;
NO. Part name Material
1 Body ASTM A216-WCB ASTM A217-WC1、WC6、WC9、C5 ASTM A351-CF8、CF8M、CF3、CF3M
2 Disc ASTM A182-Gr.F6a ASTM A182-F22 ASTM A182-F304、F316、F321、F304L、F316L
3 Stem ASTM A182-Gr.F6a ASTM A182-F22 ASTM A182-F304、F316、F321、F304L、F316L
4 Gasket Flexible graphite+stainless steel、PTFE
5 Bolt ASTM 193-B7、A320-B8、A193-B8M
6 Nut ASTM A194-2H、A194-8、A194-8M
7 Bonnet ASTM A216-WCB ASTM A217-WC1、WC6、WC9、C5 ASTM A351-CF8、CF8M、CF3、CF3M
8 Bellow assemble ASTM A182-F304、F316、F321、F304L、F316L
9 Packing Flexible graphite、PTFE
10 Gland ASTM A216-WCB ASTM A217-WC1、WC6、WC9、C5 ASTM A351-CF8、CF8M、CF3、CF3M
11 Yoke ASTM A216-WCB ASTM A217-WC1、WC6、WC9、C5 ASTM A351-CF8、CF8M、CF3、CF3M
12 Yoke nut ZQA19-4
13 Handwheel ASTM A536 Gr.60-40-18、A216-WCB
 

 

Model WZ41-150LB
Pressure 150LB
Size mm 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350
in 1/2 3/4 1 11/4 11/2 2 21/2 3 4 5 6 8 10 12 14
L 108 117 127 140 165 178 190 203 229 254 267 292 330 356 381
H 200 210 250 260 290 370 398 440 490 530 580 670 760 850 950
W 120 140 140 180 200 220 260 280 300 340 400 450 450 500 500
（kg）Weight 8 9 10 15 22 30 42 55 70 100 140 180 250 350 450

Model

 YDAWZ41-300LB
Pressure 300LB
Size mm 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350
in 1/2 3/4 1 11/4 11/2 2 21/2 3 4 5 6 8 10 12 14
L 140 152 165 178 190 216 241 283 305 381 403 419 457 502 762
H 300 210 250 260 290 370 398 440 490 530 580 670 760 850 980
W 120 140 140 180 200 220 260 280 300 340 400 450 450 500 500
（kg）Weight 9 10 12 18 25 38 53 70 88 125 175 225 310 440 560

 

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