Introducing our premium Bellow Seal DI Globe Valve - engineered to perfection for seamless flow control.
Extensive Application Range:
• Perfect for Potable Water: Ensures safe and clean water transport with precision engineering.
• Ideal for Waste Water: Robust design for handling waste water efficiently.
• Water Treatment and Distribution Systems: Our valve optimizes the performance of your treatment systems.
• Tailored for Food and Chemical Enterprises: Ensures smooth operations within stringent industry standards.
• HVAC Systems: Enhances the efficiency and reliability of your heating, ventilation, and air conditioning systems.
• Power Plants: Ensures operational excellence and safety in high-demand power generation environments.
Diverse Operation Versions:
• Hand Wheel: Simplified manual control for precision operation.
• ISO Top Flange: Compatibility with international standards for easy integration.
• Gearbox and Hand Wheel: Offers enhanced torque and control.
• Gearbox and Top Flange: For reinforced operation and adaptability.
• Electrical and Pneumatic: Advanced automation for effortless operation.
Sophisticated Technical Data:
Size range |
DN15-DN300 |
Pressure range |
PN16 |
Temperature |
-10ºC to +200ºC |
Design |
BS EN 13789/ DIN 3350 |
Face to face |
BS EN 559-1/ DIN3202 F1 |
Flange drilling |
BS EN 1092-2 |
Coating |
Thermoplastic Powder Epoxy |
Testing |
EN 12266-1 |
Marking |
EN 19 |
Coating Blue Color |
RAL 5005 |
RAL 5010 |
RAL 5015 |
Custom made |
• Constructed with premium cast or ductile iron, offering high load resilience and minimized head loss.
• High-frequency welded disc sealing surface ensures stable performance with longevity.
• Double valve cover gasket with top-down design guarantees superior sealing reliability.
• Dual stem seal functionality thanks to graphite-filled signage, ensuring leak-proof operations.
• High-strength valve stem nut forged from top-grade carbon steel with a durable black finish.
• Hydro-static testing pressure: Seat tested at PN x 1.1, Shell at PN x 1.5 in accordance with EN 12266-1 standards.
Material & Dimension Details (DN15-300 PN16 mm): Precision-crafted to meet diverse needs.
No. |
Part |
Material |
1 |
Body |
CI/DI |
2 |
Seat(screw type) |
2Cr13 |
3 |
Disc |
A105+1Cr13 |
4 |
C Ring |
Carbonn Steel |
5 |
Disc Nut |
Carbon Steel |
6 |
Stem |
X20Cr13 |
7 |
Bonnet Bolt |
Carbon Steel 8.8 |
8 |
Bonnet Nut |
Carbon Steel 8.8 |
9 |
Stem Packing |
Flexible Graphite |
10 |
Gland Flange |
DI |
11 |
Bonnet |
CI/DI |
12 |
Stem Nut |
Copper Alloy |
13 |
Handwheel |
DI |
14 |
Screw Pin |
Carbon Steel |
15 |
Gasket |
Flexible Graphite |
DN |
INCH |
L |
D |
D1 |
D2 |
b(DI) |
b(CI) |
f |
Z-d |
≈H
(closed) |
15 |
1/2" |
130 |
95 |
65 |
46 |
14 |
14 |
2 |
4-φ14 |
180 |
20 |
3/4" |
150 |
105 |
75 |
56 |
16 |
16 |
2 |
4-φ14 |
180 |
25 |
1" |
160 |
115 |
85 |
65 |
16 |
16 |
2 |
4-φ14 |
210 |
32 |
1-1/4" |
180 |
140 |
100 |
76 |
18 |
18 |
2 |
4-φ19 |
220 |
40 |
1.5" |
200 |
150 |
110 |
84 |
18 |
18 |
3 |
4-φ19 |
250 |
50 |
2" |
230 |
165 |
125 |
99 |
19 |
20 |
3 |
4-φ19 |
260 |
65 |
2.5" |
290 |
185 |
145 |
118 |
19 |
20 |
2 |
4-φ19 |
270 |
80 |
3" |
310 |
200 |
160 |
132 |
19 |
22 |
3 |
8-φ19 |
310 |
100 |
4" |
350 |
220 |
180 |
156 |
19 |
24 |
3 |
8-φ19 |
380 |
125 |
5" |
400 |
250 |
210 |
184 |
19 |
26 |
3 |
8-φ19 |
430 |
150 |
6" |
480 |
285 |
240 |
211 |
19 |
26 |
3 |
8-φ23 |
460 |
200 |
8" |
600 |
340 |
295 |
266 |
20 |
30 |
3 |
12-φ23 |
530 |
250 |
10" |
730 |
405 |
355 |
319 |
22 |
32 |
3 |
12-φ28 |
|
300 |
12" |
850 |
460 |
410 |
370 |
25 |
32 |
4 |
12-φ28 |
|
ABOUT US




Suzhou Walter Flow Control Equipment Co., Ltd. As a leader in the manufacturing of water system valves, Suzhou Walter Flow Control offers comprehensive OEM solutions for Sluice Valves, Gate Valves, Flange Butterfly Valves, Check Valves, Strainers, and more. Our offerings adhere to international standards and can include FM/UL Certification. We prioritize customer satisfaction by providing expert advice and fluid control solutions, while also accommodating custom designs and special requirements.
We eagerly await your consultation to explore how our expertise can benefit your operations!