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API Bellows gate valve

MFG: Shanghai Fengqi Industry Development Co., Ltd.
Eml: sales@fengqi.sh.cn

Tel: 0086 (021) 3652 8716
Mob: (0086) 138 1635 6498

product drawing

API bellows gate valves
API bellows gate valves

The structural features and diagrams of API bellows gate valve

API bellows gate valve is widely used in the pipeline of the petroleum, chemical, pharmaceutical, fertilizer, power industry and other working conditions, which the nominal pressure is CLASS150~900LBS, and the working temperature is -29 ~ 350 ℃. It is used to cut off or connect the medium in the pipe. The main features of API bellows gate valve: 1. reasonable structure, reliable sealing, excellent performance, attractive appearance; 2. the sealing surface is welded by Co-based alloy, it is wear-resisting, corrosion-resistant, good anti-friction performance, and has a long service life. 3. the stem quenched and tempered, and the surface nitriding treatment, have a good corrosion resistance and anti-friction performance. 4. double sealed makes the performance more reliable. 5. stem movement position indicator is more intuitive. 6. the parts materials and flanges, butt welding end dimensions are selected according to actual working conditions or the users’ requests, in order to meet the needs of a variety of projects.

Dimensions & constructral diagram

API bellows gate valve constructral diagram
API bellows gate valve constructral diagram

The materials of main parts

No. 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 and stainless steel
5 stud bolt ASTM 193-B7、A320-B8、A193-B8M
6 hexagon 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 bellows assembly ASTM A182-F304、F316、F321、F304L、F316L
9 packing Flexible graphite
10 packing gland ASTM A216-WCB ASTM A217-WC1、WC6、WC9、C5 ASTM A351-CF8、CF8M、CF3、CF3M
11 support ASTM A216-WCB ASTM A217-WC1、WC6、WC9、C5 ASTM A351-CF8、CF8M、CF3、CF3M
12 stem nut copper alloy
13 handwheel ASTM A536 Gr.60-40-18、A216-WCB

The technical specifications

structural form BB-BG-OS & Y
drive mode manual
electric
design criteria API1600、API6D
face-to-face dimension ASME B16.10
connection flange ASME B16.5
test and inspection API598、API6D

The performance specifications

nominal pressure(LB) shell Test pressure(MPa) sealing test pressure (MPa) Suitable temperature (℃) Applicable medium
150 3.0 2.2 ≤350℃ Water,steam,oil,etc
300 7.5 5.5
600 15.0 11.0
900 22.5 16.5

The connection dimensions and weight

model YDAWZ41-150LB
pressure class 150LB
caliber mm 15 20 25 32 40 50 65 80 100 125 150 200 250 300
in 1/2 3/4 1 11/4 11/2 2 21/2 3 4 5 6 8 10 12
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
weight(kg) 8 9 10 15 22 30 42 55 70 100 140 180 250 350 450
model YDAWZ41-300LB
pressure class 300LB
caliber mm 15 20 25 32 40 50 65 80 100 125 150 200 250 300
in 1/2 3/4 1 11/4 11/2 2 21/2 3 4 5 6 8 10 12
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
weight(kg) 9 10 12 18 25 38 53 70 88 125 175 225 310 440 560
model YDAWZ41-600LB
pressure class 600LB
caliber mm 15 20 25 32 40 50 65 80 100 125 150 200 250 300
in 1/2 3/4 1 11/4 11/2 2 21/2 3 4 5 6 8 10 12
L 165 190 216 229 241 292 330 356 432 508 559 660 787 838 889
H 200 210 250 260 290 370 398 440 490 530 580 670 760 850 980
W 120 140 140 180 200 220 260 280 300 340 400 450 450 500 500
weight(kg) 11 13 16 24 32 50 70 90 105 165 230 300 400 570 730
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