Product Name: Butt Welding Bw Ends Double Window Sight Glass Model NO.: SJ41 Head Type: Round Surface Treatment: Without Treatment Connection: Welding Material: Stainless Steel Standard: DIN, ANSI, GB, JIS, BSW Design & Manufacture: ASME B16.34 Face to Face: Amse B16.10 Inspect & Test: API 598 Valve Type: Sight Glass Trademark: ZYI Transport Package: Plywood Case Specification: 1/2''-24'' 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, LCB, LC1, C5, CF8, CF8M, CF3, CF3M, CF8C, CN7M, Hastelloy C, etc.Main material: WPB, Q235, A106, WPL6, WPL11, SS304, SS316, SS304L, SS316L, SS321, etc.We also can cast and produce the valves according to customers' special requirements.Valve Size (NPS)Minimum Test Duration(Seconds)ShellBackseatSealCheck Valve (API 594)Other ValvesFor Valves With Backseat FeatureCheck Valve (API 594)Other Valves≤2''60151560152-1/2''~6''60606060608''~12''601206060120≥14''12030060120120Q: 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.