CHECK VALVES MMVI is glad to show you its range of valves CHECK. - This system avoids the liquid flow return; - Size from 2'' to 64'' (for pressure seal size from 2'' to 30''); - Valves from 150 Lbs to 2.500 Lbs (for pressure seal valves up to 4.500 Lbs); - Types of end connection: flanged end, BW and RTJ; - Designed to ANSI B16.34 and BS 1868; - Flanged dimensions in accordance with ANSI B.16.5; - Face to face in accordance with ANSI B.16.10; - Bolted cover; - Threaded renewable seat rings; - Optional upon request: bosses for drains and by-pass; - Tested in accordance with API 598; - the valves are manufactured in respect of DIN and ASA standards and special specifications can be   evaluated under simple request. Range of products: - standard (swing check); - piston check valve; - Y pattern and tilting disc design; - wafer; - API 6D design; - guided plug with or without pressure spring; - pressure seal design; - counterweight; - lever operated; - hydraulic; - shock absorber; - double disc; - Temperature range from -196°C to +650°C.