OS&Y Metal Seated Flange Gate Valve
Features
The cast steel flange gate valve features a sliding gate to control flow, widely used in petroleum, chemical, and thermal power plants for fully open or closed applications in pipelines carrying oil, steam, or slurry. Its design ensures low pressure loss, tight sealing with stainless steel or hardened alloy seats, and options for manual, pneumatic, electric, or gear operation. Known for durability, minimal leakage, and low-torque operation, it is ideal for on/off service but not recommended for throttling.
OS&Y Gate valves feature:
● Outside Screw and Yoke design
● Bolted Bonnet
● fully guided wedges
● rising stem
● with gear operation
● flange ends
● low-torque smooth stem for reliable shut-off
Specifications
Design Standard |
API 600, API603, GB/T 12234, JIS B2071 |
End Flange Standard |
EN 1092 PN16, ANSI 150LB, JIS 10K |
Face to Face Dimension |
ASME B16.10, DIN F5, GB/T 12221, JIS B2002 |
Testing Standard |
API 598 |
Temperature |
≤425℃(depends on the body material) |
Body Material |
WCB, WC6, LCC, CF8, CF8M, CF3, CF3M, 2205 |
Disc Material |
WCB+13CR/STL, Stainless Steel |
Shaft Material |
Stainless Steel |
Seat Material |
Stainless steel, STL |
Operator |
Hand wheel Gearbox, Pneumatic, Electric Actuator |
Dimension
| Size | L | PN16 | ANSI 150LB | JIS 10K | ||||
| DIN F5/ GB | ASME/ JIS | Ф D1 | n - Ф d | Ф D1 | n - Ф d | Ф D1 | n - Ф d | |
|
DN15 |
130 |
108 |
65 |
4-14 |
60.3 |
4-12.7 |
70 |
4-15 |
|
DN20 |
150 |
117 |
75 |
4-14 |
69.9 |
4-12.7 |
75 |
4-15 |
|
DN25 |
160 |
127 |
85 |
4-14 |
79.4 |
4-12.7 |
90 |
4-19 |
|
DN32 |
180 |
140 |
100 |
4-18 |
88.9 |
4-12.7 |
100 |
4-19 |
|
DN40 |
200 |
165 |
110 |
4-18 |
98.6 |
4-16 |
105 |
4-19 |
|
DN50 |
250 |
178 |
125 |
4-18 |
120.6 |
4-19 |
120 |
4-19 |
|
DN65 |
265 |
190 |
145 |
4-18 |
139.7 |
4-19 |
140 |
4-19 |
|
DN80 |
280 |
203 |
160 |
8-18 |
152.4 |
4-19 |
150 |
8-19 |
|
DN100 |
300 |
229 |
180 |
8-18 |
190.5 |
8-19 |
175 |
8-19 |
|
DN125 |
325 |
254 |
210 |
8-18 |
215.9 |
8-22.4 |
210 |
8-23 |
|
DN150 |
350 |
267 |
240 |
8-22 |
241.3 |
8-22.4 |
240 |
8-23 |
|
DN200 |
400 |
292 |
295 |
12-22 |
298.4 |
8-22.4 |
290 |
12-23 |
|
DN250 |
450 |
330 |
355 |
12-26 |
361.9 |
12-25.4 |
355 |
12-25 |
|
DN300 |
500 |
356 |
410 |
12-26 |
431.8 |
12-25.4 |
400 |
16-25 |
|
DN350 |
550 |
381 |
470 |
16-28 |
476.2 |
12-28.4 |
445 |
16-25 |
|
DN400 |
600 |
406 |
525 |
16-31 |
539.7 |
16-28.4 |
510 |
16-27 |
|
DN450 |
650 |
432 |
585 |
20-31 |
577.8 |
16-31.8 |
565 |
20-27 |
|
DN500 |
700 |
457 |
650 |
20-34 |
635 |
20-31.8 |
620 |
20-27 |
|
DN600 |
800 |
508 |
770 |
20-37 |
749.3 |
20-35.1 |
730 |
24-33 |