check-valve sight glass / flange

Size 15mm~200mm(0.5"~8")
Working Pressure 0.1mbar~16bar
Temperature Range -20? ~200? according to working conditions, other temeprature on request
Design and Manufacture API 594
Face to Face ASME B16.10 DIN 3202 JIS B2002
Flange Ends ASME B16.5 DIN 2532 JIS B2212
Visual Inspection MSS Sp54
Testing API 598 DIN 12569 JIS B2003
Pressure&Temperature ASME B16.34
Spark testing 14kv

With pressure rating up to 19 barges, the DOXI ball check valves sight glass are very robust, having integrated borosilicate windows each side of the ball check assembly makes it very easy to see if there is flow through the valve. No wetted metal parts are used. The valves are immune to most aggressive chemicals and are used in place of expensive exotic alloys.