What are the reliability requirements for check valves in critical service

Check valves are incredibly useful. They can help pumps keep pumping, pressure vessels stay pressurized, and reduce waste from blow outs and line breakage. Valve Type. Silent Check Valve. Material. Cast Iron. ANSI/Pressure Rating. Class 125. End Connection. Wafer. Body Style. Wafer. Seat Material. Model M-2 Check Valve 4" Viking valve and system offerings provide customers with industry-leading quality that lasts. Normally Closed Check Valve · Priming volume: 0.12 mL · Contact a Representative · Related Documents. Description, Document, Link. Design Options® Learn More. Compact one piece body, fully retained O-ring seal, poppet type check valve. Available in 1/4” and 1/2” NPT in brass or 316 stainless steel. Suitable for ... Seat N/A Buna-N (75 dur.) CAD Icon (for items table), N/A. 312H1A4C3, QUOTE, 0, Size N/A 2 ... Block Oil Flow from the Accumulator. Some systems have a hydraulic accumulator installed downstream of the pump and check valve. When the system is turned off, ... Specifications and pricing listed on this website are subject to change. WARNING: Mytee® products can expose you to chemicals including Lead, which is known to ... The Series 225 Auto-Soft is a flow-actuated check valve used for throttling roughing pumps during initial evacuation. Auto-Soft check valves close very quickly ... What is a retainerless check valve? In many check valves, there are four holes in the body of the valve that are used to mount the hinge pin and stop pin. A ...