Single door swing check valve Technical: Size: DN40-DN400 Nominal Pressure: PN10/PN16/PN25/PN40 Working Temperature: -40deg C~150deg C Suitable Mediums: Water Steam Oils Standard: Face To Face: ISO5752 Body Flange Drilling: ANSI125/150 DIN2501 PN10/PN16/PN25/PN40 Test Standard: API598 contact: tjvalve@tjtvt.com