Product Name: Ce Certification Cast Steel Bolted Cover Swing Check Valve Model NO.: H44 Application: Industrial Usage, Water Industrial Usage, Household Usage Standard: ANSI Flow Direction: Unidirection Sealing Form: metal to metal Function: Ddcv Double Lobe, Nrvr Silence, Sfcv Rubber Lobe, Nrvz Silence, Nrvg Silence Pressure: Low Pressure Structure: Swing Connection Form: Flange Material: Cast Steel Temperature: High Temperature Media: Oil Trademark: ZYI or OEM Transport Package: Plywood Case Specification: 2''-48''(DN50~DN1200) Origin: China Product Description Design Standard: API, ANSI, DIN, JIS, BS, GOST, GB, etc;Nominal diameter:1/2'' - 24''(DN15-DN600);Nominal pressure:Class150 - Class2500 (PN10-PN420);Main material: WCB, WC6, WC9, LCB, LCC, LC1, LC2, C5, C12, C12A, CF8, CF8M, CF3, CF3M, CF10, CF10M, CF8C, CN7M, 904L, 4A, 5A, 6A, Hastelloy C,etc.We also can cast and produce the valvesaccording to customers' special requirements.Q: Are you factory or trading company?A: We are factory.Q: What is your products' MOQ?A: MOQ≥1 setQ: What is your products' warranty time?A: Normally is 12 months, pls inform us if you want to extend the warranty time.Q: Can you provide the sample for free?A: Yes, we can provide the sample for free, but you need bear the delivery cost.Q: Can you produce according to customers' own technical drawings?A: Yes,we always can fully meet customers' special requirement.