Dual Plate Wafer Type Check Valve
Product Description
Dual Plate Wafer Check Valve
1) Size: 2" - 36"
2) Class: 150lbs
Technical standards:
1) Design and manufacture: API 6D
2) Face-to-face: ANSI B16.10
3) Flange end: ANSI B16.5
4) Inspection and test: API 598
Main materials:
1) Body and disc: Ductile iron, carbon steel, stainless steel
2) Stem: Stainless steel
3) Torsion spring: Stainless steel
4) Seal surface: Buna-n rubber, stainless steel, gathered four fluorine
Ethylene, and nylon plastics
Features:
1. Small in size, light in weight, compact in structure,easy in maintenance.
2. Two torsion springs are used excreting on each of the pair valve plates,which close the plates quickly and automatically.
3. The quick-close action prevents the medium from flowing back and eliminates water hammer effect.
4. Short body structure length and good rigidity.
5. This valve is tightly sealed, without leakage under the pressure water test.
6. Safe and reliable in operation,high interference-resistance.
Performance:
Nominal pressue (MPa) | 1.0 | 1.6 | |
Nominal diameter(mm) | 50-600 | 50-600 | |
Test pressure | Shell | 1.5 | 2.4 |
(MPa) | Seal | 1.1 | 1.76 |
Applicable temperature | 150 | ||
Applicable medium | Fresh water, Sewage, Sea water, Air, Vapor, Food, Medicine, Oils, Acids, | ||
Standard:
Design & Manufacture | Flange Connection | Face to Face Dimension | Test & Inspection |
API 594 | DIN PN10/16/25 | API594 | API 598 |
No. | Part Name | Material |
1 | Body | Cast Iron/Ductile Iron |
2 | Plate | Ductile iron+Ni,CF8,CF8M,Bronze |
3 | Spring | Stainless steel |
4 | Hinge Pin | Stainless steel |
5 | Plug | Carbon steel |
6 | Body Bearing | PTFE |
7 | Spring Bearing | PTFE |
8 | Stop pin | Stainless steel |
9 | Eye Bolt | Carbon steel |
10 | Body seat | NBR,EPDM,VITON,NEOPRENE |