Swing Check Valve BS EN 12334 (H44X, H44T), PN10/16
-10℃- 350℃ graphite gasket
-10℃- 350℃ graphite gasket
Check valves serve to prevent the backflow of medium in the piping system for protection of important equipments, widely used in the field of potable water, water supply and drainage, sewage disposal, irrigation, air conditioning, fire protection as well as chemical and energy industry.
◔ Material:Ductile Iron EN-GJS-450-10
Valve body, bonnet, disc are all produced in ductile iron material which provides guarantee for high strength and good corrosion resistance.
◔ Fusion bonded epoxy coating
Fusion bonded epoxy coating in accordance with ANSI/AWWA C550 for both interior and exterior surface which provides reliable corrosion resistance.
◔ Small hydraulic friction loss with reasonable structure design
MATERIAL SPECIFICATION
• Connection Ends: Flange to BS EN 1092-2:1997
• Working Pressure: PN10/PN16
• Temperature Range: Rubber Seal: 0℃- 80℃
Metal Seal: -10℃- 350℃
• Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWA C550 or painting upon request
Part No. | Part | Standard Specification | Options |
1 | Valve Body | EN-GJS-450-10 |
|
2 | Seat Ring | Bronze ASTM B62 C83600/ZQSn5-5-5 (Pressed Fit) | AISI 304, AISI 316 Pressed Fit or Threaded |
3 | Disc | EN-GJS-450-10+EPDM |
|
4 | Clapper Arm | EN-GJS-450-10 |
|
5 | Washer | SS420 |
|
6 | Nut | Carbon Steel Zinc Plated | SS304, SS316 |
7 | Hinge Pin | SS420 |
|
8 | Bonnet Gasket | EPDM | Graphite+Steel |
9 | Bolt | Carbon Steel Zinc Plated | SS304, SS316 |
10 | Washer | Carbon Steel Zinc Plated | SS304, SS316 |
11 | Bonnet | EN-GJS-450-10 |
|
12 | Plug | Malleable Iron Galvanized |
Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.
DN | Dimensions(mm) | |||||||
Inch | mm | L | D | D1 | D2 | C | T | n-φL |
2" | 50 | 120 | 165 | 125 | 99 | 19 | 3 | 4-Ø19 |
2.5" | 65 | 135 | 185 | 145 | 118 | 19 | 3 | 4-Ø19 |
3" | 80 | 155 | 200 | 160 | 132 | 19 | 3 | 8-Ø19 |
4" | 100 | 165 | 220 | 180 | 156 | 19 | 3 | 8-Ø19 |
5" | 125 | 190 | 250 | 210 | 184 | 19 | 3 | 8-Ø19 |
6" | 150 | 210 | 285 | 240 | 211 | 19 | 3 | 8-Ø23 |
8" | 200 | 260 | 340 | 295 | 266 | 20 | 3 | 12-Ø23 |
10" | 250 | 285 | 405 | 355 | 319 | 22 | 3 | 12-Ø28 |
12" | 300 | 315 | 460 | 410 | 370 | 24.5 | 4 | 12-Ø28 |
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