Flange Double Plate Check valve Introduction This Flange Double Plate Check Valve is a reliable choice for preventing backflow in plumbing systems. With its durable flange design and double plate mechanism, it ensures long-lasting performance and efficient operation. Trust this valve for secure and hassle-free use in any plumbing application. Flange Double Plate Check valve Drawing 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 Applicable temperature 150 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. Standard Materials Of Main Parts ITEM PART NAME MATERIAL 1 STOP PIN Ss304 2 HINGLE PIN Ss304 3 SPRING Ss304 4 PLATE DI 5 BODY CI 6 SEAT EPDM 7 BEARING PTFE Dimensions: (mm)
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