Ductile Iron OS&Y Resilient Seated Flange Gate Valve
Features
Low Flow Resistance |
Full-channel design of the valve body |
Valve Design |
Outside Screw and Yoke |
Leakage Level |
Bubbles-tight sealing with no leakage |
Performance |
Long service life and reliable sealing performance |
Low Torque |
Operation easy and flexible |
Bidirectional Sealing |
Unlimited flow direction and easy to install |
Coating Grade |
Conventional and special conditions of C1-C5 & CX |
Wide Application |
Water treatment, Sewage system, Fire, HVAC, etc |
Certificates |
ISO9001, CE, WRAS, ACS |
Specifications
Design Standard |
DIN 3352, BS 5163 |
End Flange Standard |
DIN 2533, EN 1092, BS 4504 |
Face to Face Dimension |
DIN 3202-F4, DIN3202-F5, BS 5163 |
Testing Standard |
API 598, EN12266 |
Temperature |
-20℃~80℃ (depends on the sealing material) |
Body Material |
GGG50 |
Wedge Material |
Ductile Iron+EPDM/NBR |
Shaft Material |
Stainless Steel, Brass |
Seal Material |
EPDM, NBR |
Operator |
Hand wheel, Come Gear, Electric Actuator |
Dimension
Size |
L |
H |
W |
PN10 |
PN16 |
PN25 |
|||||
|
DIN F4 |
DIN F5 |
BS 5163 |
|
|
Ф D1 |
n - Ф d |
Ф D1 |
n - Ф d |
Ф D1 |
n - Ф d |
DN50 |
150 |
250 |
178 |
280 |
200 |
125 |
4-19 |
125 |
4-19 |
125 |
4-19 |
DN65 |
170 |
270 |
190 |
340 |
200 |
145 |
4-19 |
145 |
4-19 |
145 |
8-19 |
DN80 |
180 |
280 |
203 |
370 |
240 |
160 |
8-19 |
160 |
8-19 |
160 |
8-19 |
DN100 |
190 |
300 |
229 |
405 |
240 |
180 |
8-19 |
180 |
8-19 |
190 |
8-23 |
DN125 |
200 |
325 |
254 |
535 |
280 |
210 |
8-19 |
210 |
8-19 |
220 |
8-28 |
DN150 |
210 |
350 |
267 |
565 |
280 |
240 |
8-23 |
240 |
8-23 |
250 |
8-28 |
DN200 |
230 |
400 |
292 |
700 |
350 |
295 |
8-23 |
295 |
12-23 |
310 |
12-28 |
DN250 |
250 |
450 |
330 |
885 |
450 |
350 |
12-23 |
355 |
12-28 |
370 |
12-31 |
DN300 |
270 |
500 |
356 |
960 |
450 |
400 |
12-23 |
410 |
12-28 |
430 |
16-31 |
DN350 |
290 |
550 |
381 |
1159 |
460 |
460 |
16-23 |
470 |
16-28 |
490 |
16-34 |
DN400 |
310 |
600 |
406 |
1250 |
460 |
515 |
16-28 |
525 |
16-31 |
550 |
16-37 |
DN450 |
330 |
650 |
432 |
1375 |
550 |
565 |
20-28 |
585 |
20-31 |
600 |
20-37 |
DN500 |
350 |
700 |
457 |
1470 |
600 |
620 |
20-28 |
650 |
20-34 |
660 |
20-37 |
DN600 |
390 |
800 |
508 |
1669 |
700 |
725 |
20-31 |
770 |
20-37 |
770 |
20-41 |
The OS&Y (Outside Stem & Yoke) Resilient Seated Gate Valve is designed for reliable and efficient flow control. Its rising stem design provides clear visual indication: the stem is raised when open and lowered when closed. This valve features a resilient rubber-seated wedge, ensuring bubble-tight, bidirectional sealing and minimal operation torque.
Constructed with a full bore, it minimizes pressure loss and is ideal for applications requiring uninterrupted flow. The external stem threads are isolated from the medium, preventing corrosion and ensuring long service life.
Standard flanged ends allow for easy installation:
EN 1092 Flange Gate Valve
DIN 2533 Flange Gate Valve
BS 4504 Flange Gate Valve
Many models comply with fire-safe standards, providing an auxiliary metal-to-metal seal in emergency situations. Suitable for water supply, wastewater, and various industrial services, this valve offers durability, safety, and low maintenance. It can be operated manually or equipped with actuators for automation.