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.
Specifications:
Nominal pressue (MPa)
1.0
1.6
Nominal diameter(mm)
50-1000
50-1000
Test pressure
Shell
1.5
2.4
(MPa)
Seal
1.1
1.76
Applcable temperature
120
Applicable medium
Fresh water, Sewage, Sea water, Air, Vapor, Food, Medicine, Oils, Acids,
Alkalis, etc.
Operating mode
manual, worm gear, pneumatic, electric, etc.
Standards:
Design & Manufacture
Flange Connection
Face to Face Dimension
Test & Inspection
API 594
DIN PN10/16/25
API594
API 598
Material:
body Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel
Plate Ductile Iron, Carbon Steel, Stainless Steel
Spring Stainless Steel
Hinge Pin Stainless Steel
Plug carbon steel
Body Bearing PTFE
Spring Bearing PTFE
Stop Pin Stainless Steel
Eye Bolt Carbon Steel
Body Seat NBR, EPDM, Viton, Neoprene
Application:
Chemicals, air, water, steam, oil, acids, salts ect
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.
Dual plate wafter check valve
