Discover the Excellence of our Bellow Seal DI Globe Valve
Vast Application Range
• Perfect for potable water systems, ensuring safe and clean water delivery
• Ideal for waste water management, providing reliable and efficient operation
• Essential for water treatment and distribution systems, offering seamless flow control
• Integral to food and chemical enterprises, ensuring safety and precision
• Vital for HVAC systems, maintaining optimal environmental conditions
• Crucial for power plants, supporting robust and high-pressure applications
Versatile Operation Versions
• Traditional and reliable hand wheel operation
• Flexible ISO top flange for varied mounting options
• Robust gearbox coupled with hand wheel for enhanced control
• Efficient gearbox with top flange for streamlined operation
• Advanced electrical and pneumatic versions for automated systems
Comprehensive 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 |
• Engineered from high-quality cast or ductile iron material, offering exceptional load capacity and minimal head loss
• Disc sealing surface crafted through high-frequency welding, aged for performance stability
• Innovative double valve cover gasket design ensures top-down sealing reliability
• Dual stem sealing functionality enhanced by graphite-filled signs
• Precision-forged valve stem nut made from high-strength carbon steel, featuring a black surface treatment for extended durability
• Rigorous hydro-static testing: seat with PN x 1.1 and shell with PN x 1.5 in accordance with EN 12266-1
Material & Dimension Specifications (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. As a distinguished manufacturer dedicated to water system valves, we offer OEM services for sluice valves, gate valves, flange butterfly valves, check valves, strainers, pressure reducing valves, fire hydrants, among others, adhering to global valve standards. Our products are available with FM/UL Certification, ensuring top-notch quality. At Walter, customer experience is paramount; we provide expert advice and fluid control solutions tailored to your needs, accommodating custom designs and special requirements with precision.
We eagerly anticipate your consultation and inquiries!
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