What is Non Return Butterfly Wafer Check Valves API594 125lb
Price
Min. Order Reference FOB Price
1 Piece US$10.00-100.00 / Piece
Sepcifications
- Media Acid, Water, Oil, Gas, Sea Water, etc
- Temperature Ordinary Temperature
- Material Cast Iron
- Connection Form Flange
- Structure Wafer
- Pressure Ordinary Pressure
- Function Ddcv Double Lobe, Nrvr Silence, Sfcv Rubber Lobe, Nrvz Silence, Nrvg Silence
- Sealing Form Bellows Globe Valve
- Flow Direction Unidirection
- Standard DIN3356;API594;API6d;
- Application Industrial Usage, Water Industrial Usage, Household Usage
- Transport Package Plywood Box
- Specification DN40-DN1200
- Trademark OEM
- Origin Tianjin China (Mainland)
- Body Material Cast Iron/Ductile Iron/Wcb/CF8m/CF8/Al-Bronze
- Disc Material 4469/1.4529/Saf2205/2507/CF8/CF8m etc
- Seat Material NBR/EPDM/PTFE/Silicone etc
- Coating Fbe Epoxy Coated
- End Standard Pn6/10/16/25/21/150lb/JIS5K/10K/As2129 Table D/E/F
- Face to Face En558; ISO5752; ANSI B16.10;API594
Product Description
Product Parameters Our check valve is economically priced but with higher quality and capability than most at this market Product Feature: Pressure seal design. Unique cage unit: entire seat-hinge-pin-disc assembly can be tested outside the valve before seal welding into the ...
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Choosing Between PTFE and Rubber Seats for Butterfly Valves: A Material Science PerspectiveBy Tianjin Worlds Valve Co., Ltd. on 07/05/2025This article compares PTFE and rubber butterfly valve seats across eight critical factors: chemical resistance (PTFE excels in harsh media), temperature tolerance (-200°C to 260°C vs. -50°C to 120°C), mechanical durability (PTFE maintains rigidity), environmental impact (rubber degrades faster), installation complexity, lifecycle costs (PTFE's longevity offsets higher initial cost), industry-specific compliance (FDA/chemical vs. water standards), and application suitability (chemical vs. municipal systems). Material selection balances operational demands and sustainability goals.