... 8077/8078 OEM acceptable 2011 Best Steady ppr check valve green With German Standard1, raw material: ppr and brass2, pressure ... rating:2.5mpa3, color: white, green, grey, blue4, size:20mm to 32mm5, sanitary,healthy,non-toxic ... ,the maximum water temperature up to 95 degree10, adopting hot welding connection11, smooth inner wall surface,reducing the pressure loss and ...