This article does not cite any sources. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Pilot valve" – news · newspapers · books · scholar · JSTOR(November 2020) (Learn how and when to remove this message)
A pilot valve is a small valve that controls a limited-flow control feed to a separate piloted valve. Typically, this separate valve controls a high pressure or high flow feed. Pilot valves are useful because they allow a small and easily operated feed to control a much higher pressure or higher flow feed, which would otherwise require a much larger force to operate; indeed, this is even useful when a solenoid is used to operate the valve.
Pilot valves are often used in critical applications (e.g., emergency and SIS controls) and are human-operated. They can be set up as a push-to-activate or dead man's switch.
A pilotvalve is a small valve that controls a limited-flow control feed to a separate pilotedvalve. Typically, this separate valve controls a high pressure...
A solenoid valve is an electromechanically operated valve. Solenoid valves differ in the characteristics of the electric current they use, the strength...
A relief valve or pressure relief valve (PRV) is a type of safety valve used to control or limit the pressure in a system; excessive pressure might otherwise...
actuator: an inlet line and an outlet line. Pilotvalves are valves which are used to control other valves. Pilotvalves in the actuator lines control the supply...
or temperature exceeds preset limits. Pilot-operated relief valves are a specialized type of pressure safety valve. A leak tight, lower cost, single emergency...
of valve, air pressure is applied through a pilotvalve into the actuator which in turn raises the diaphragm and opens the valve. This type of valve is...
piston valves were mass manufactured towards the end of the 19th century. A piston valve can also refer to a 2-way 2-position, pilot-operated spool valve. The...
A shuttle valve is a type of valve which allows fluid to flow through it from one of two sources. Generally a shuttle valve is used in pneumatic systems...
throttle valve spindle respectively. The pilotvalves spindle is also connected to the same lever at some intermediate position. Both the pilotvalves cover...
the valve must be held open manually and the pilot lit, and then the valve must be held open until the element heats up enough to hold the valve open...
sliding blind valve Outflow valve: regulates flow and pressure, part of cabin pressurization Pilotvalve: regulates flow or pressure to other valves Petcock...
port on the first stage. Some demand valves use a small, sensitive pilotvalve to control the opening of the main valve. The Poseidon Jetstream and Xstream...
Variable valve timing (VVT) is the process of altering the timing of a valve lift event in an internal combustion engine, and is often used to improve...
in the non-nuclear secondary system, followed by a stuck-open pilot-operated relief valve (PORV) in the primary system, which allowed large amounts of...
VTEC (described as Variable Valve Timing & Lift Electronic Control, but stands for Valve Timing Electronically Controlled) is a system developed by Honda...
electrohydraulic servo valve (EHSV) is an electrically-operated valve that controls how hydraulic fluid is sent to an actuator. Servo valves are often used to...
A thermal expansion valve or thermostatic expansion valve (often abbreviated as TEV, TXV, or TX valve) is a component in vapor-compression refrigeration...
gas to the pilot. So long as the pilot flame remains lit, the thermocouple remains hot, and the pilot gas valve is held open. If the pilot light goes...
pintle itself is hydraulically actuated by the fuel via a pilotvalve, and no extra valves are required between the engine and tanks. This is called an...
pressure valves (pneumatics), in which case the action is electro-pneumatic. In such actions, an electromagnet attracts a small pilotvalve which lets...
also oil or water. The valve is equipped with a pneumatic actuator supplied by a three-way solenoid valve. The pressure of the pilot medium enters the actuator...
Global Information