SDNR Globe Check Valve from NEWTON VALVE are available both in types of straight through and Angle type which with main features as below: - Screw down Non-return  - Flanged Ends R.F/R.T.J Connection to ANSI B16.5, JIS F7311, F7312, F7320 and F7366 etc. - Standards compliance to ANSI, API, JIS, BS - Size ranges from 1/2”NB to 20”NB - Pressure Ratings available in PN5, PN10, PN16, PN20, JIS 5K, JIS 10K, JIS 20K, ANSI 150, ANSI 300 & ANSI 600 - Materials available in Bronze, Iron, Carbon Steel, Stainless Steel and Duplex Stainless Steel, Other special materials will be also available upon request. All of SNDR Globe Check Valves produced by NEWTON VALVES are certified by Quality System ISO 9001:2000