The above monoflange valve consist of 3 needle valves, with the fuction of double  block and bleed, one needle valve with OS&Y, one needle valve with anti-temper device. Size from 1/2"-4". Pressure class from 150lb to 2500lb. All kinds of materials are available, Carbon steel, Stainless steel and duplex stainless steel and other alloy steel.

Your enqiury will be highly appreciated.