Bellow Seal DI Globe Valve
Application Range
• Potable water - Perfectly engineered for the delivery and management of safe, clean drinking water.
• Waste water - Efficiently handles waste water systems, ensuring reliable performance and sustainability.
• Water treatment and distribution systems - Designed to enhance the efficiency and reliability of water treatment processes and distribution networks.
• Food and chemical enterprises - Ideal for maintaining rigorous standards in the food and chemical industries to ensure safety and quality.
• HVAC - Seamlessly integrates into HVAC systems, offering dependable performance and energy efficiency.
• Power plants - Built to withstand the demanding conditions of power plants, ensuring continuous and reliable operation.
Operation Versions
• Hand wheel - Classic and intuitive manual control for precise operation.
• ISO top flange - Versatile design accommodating various actuator attachments for enhanced functionality.
• Gearbox and hand wheel - Combines the robustness of a gearbox with hand wheel control for superior torque and ease of use.
• Gearbox and top flange - Offers the advantage of gearbox efficiency with top flange adaptability.
• Electrical and Pneumatic - Advanced options for automated, efficient control using electrical or pneumatic systems.
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 |
• The body is made of high-quality cast or ductile iron material, offering exceptional load capacity and minimal head loss for optimal flow.
• The disc sealing surface is formed by high-frequency welding, ensuring a stable and long-lasting performance thanks to its aged design.
• Double valve cover gasket features a top-down design to ensure maximum sealing reliability and efficiency.
• Graphite-filled signs provide a robust dual stem seal function, enhancing durability and performance.
• The valve stem nut is forged from high-quality carbon steel, boasting a black surface treatment that ensures high strength and a long service life.
• Hydro-static test pressure for seat: PN x 1.1, and for shell: PN x 1.5, rigorously tested according to EN 12266-1 standards.
Material & Dimension (DN15-300 PN16 mm)
| 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. is a professional manufacturer of water system valves. We excel in providing OEM solutions for a variety of valves including Sluice Valve, gate valve, flange butterfly valve, check valve, strainer, pressure reducing valve, fire hydrant, and more, all adhering to international standards and specifications. Some products are available with FM/UL Certification. At Walter, we prioritize customer satisfaction by offering expert advice and comprehensive fluid control solutions. Additionally, we welcome custom designs and special requirements to meet unique customer needs.
We eagerly await your consultation to explore the perfect solution for your needs!
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