Piston check valve 312 series

weldfor oil industry applicationsfor steam

The 312 series is a steel ball valve that weighs about 800 lbs and comes in horizontal position only. It is available in either in piston-type with an SS-302 spring or in ball-type without spring. The bolted bonnet is responsible for simplifying its maintenance. The Trim 8 version has a body made of carbon steel which guarantees adequate mechanical strength of the seat. The trim 10 version has a body made of SS-316. Forged carbon Steel check valve TRIM8 SW Class 800 standard bore for petroleum industry, steam, oil and gas and high pressure. Piston type and bolted bonnet. Stainless Steel + graphite bonnet gasket. Compatible with explosive atmosphère, ATEX Zone 1&21 and Zone 2&22. SPECIFICATIONS : • - respect the flow direction (mdicated by the arrow) • - Standard bore • - Piston type • - Horizontal position only • - Bolted bonnet • - Forged carbon Steel A105N • - Vi stellite ( Trim 8 ) • - Class 800 • - Phosphate protection. 5 pm thickness USE: • - Petroleum industry. steam. high pressure • - Min and max Température Ts : - 29°C to + 425°C • - Max Pressure Ps : 136 bars ( see graph )