An air-operated valve, also known as a pneumatic valve, is a type of power-operated pipe valve that uses air pressure to perform a function similar to a solenoid. As air pressure is increased, the compressed air starts to push against the piston or diaphragm …

Air-operated valves (AOVs) are used extensively in the power generation industry for process-control and system-isolation functions. Their proper operation is essential to reliable power plant operation. This guide discusses major components such as actuators, valves, and positioners, and explains the inter-relationship of these components.

NUREG-1275 (2000) – Volume 13 Evaluation of Air-Operated Valves at U .S . Light-Water Reactors. Identify safety-related AOVs which contribute the most risk should they fail to operate . For those valves with unconfirmed design margin, risk calculations which consider failures of redundant valves in both trains of a system may be appropriate.

air operated valve assembly (AOV): valve and actuator combination in which the actuator uses air as a power source to provide a valve stem thrust/torque to open, close or throttle a valve. It also

operated valves (AOVs). Proper AOV operation and function in the nuclear industry are essential to equipment reliability and power plant operation. This report provides details on successful performance of valve diagnostics and how to evaluate the results. There are benefits to using valve diagnostics in understanding valve health; this report

The R-K AOV series air valve features a compact thermoplastic valve available in six models to handle a multitude of piping system functions. This patented valve is designed so there is no metal contact with the fluid, and can be operated in any position Air actuated at 40 to 80 PSI.

This document, which is an AOV Setup Guide, expands on the guidance in Reference (1). Specifically, this guide covers the following areas. • Calculating allowable AOV setup parameters, • Calculating AOV margins, and • Statistically combining uncertainties associated with evaluating an AOV and incorporating

FEIs are intended to verify the licensee's implementation of NRC approved engineering programs (e.g., MOV, AOV, EQ). Topics chosen based on risk, operating experience and potential for engineering challenges. Valve types include gate, globe, butterfly, ball, and plug valves with variations of these valve types.

The SIMTECH AOV Series Air Valve features a compact thermoplastic valve available in six models to handle a multitude of piping system functions. This patented valve is designed so there is no metal contact with the fluid, and can be operated in any position. Air actuated at …

This patented valve is designed so there is no metal contact with the fluid, and can be operated in any position. Air actuated at 40 to 80 PSI. Direct acting full flow with top entry for easy maintenance and minimum water hammer.