No. There are a few reasons why a pneumatic control valve can not be used with hydraulics applications.
Firstly, pneumatic seals are incompatible to the chemical properties of hydraulic oils and they do not have the strength to accommodate the high pressures produced by a hydraulic system.
Secondly, pneumatic valves are not designed for high pressure operation and the component would get damaged, burst or crack.
Finally, the tolerances within pneumatic components would allow by-passing due to the slacker tolerances compared to hydraulic components. By-passing causes all sorts of problems by itself: Over-heating, leaking, internal structure damage of the component.
One of the application of the control valve with positioner is that it is used to control the opening and closing of the actuator based on electric or pneumatic signals. The opening or closing of control valves is usually done automatically by electrical, hydraulic or pneumatic actuators.
Pneumatic process control valves are used in process industries to control the flow of fluid by using pneumatic actuators. It requires 4.5 to 6 Kg/sq. cm of pressure to operate the valve. Control room sends electrical signals of 4-20 ma to field where I/P converter converts these electrical signals into pneumatic signals. Actuators use these signals to operate the valve. Actuators moves the stem up and down depending upon input signals and control the valve opening. 4ma- 0% opening 8ma- 25% opening 12ma- 50% opening 16ma- 75% opening 20ma- 100% opening
pneumatics are used only in low power applications hydraulics are used in medium to high power applications.
Margin pressure is a term used in Closed Center, Load Sense type systems in hydraulics. The term refers to the pressure difference between the pump outlet(valve inlet) and the valve tank pressure). The margin pressure is the way the valve signal to the pump it's status.
A directional control valve is used to manage the flow of fluid within a hydraulic or pneumatic system by directing the flow path. It determines the route that the fluid takes, allowing for the control of the movement of actuators, such as cylinders or motors, in various directions. By shifting its position, the valve can enable or block flow to specific parts of the system, facilitating operations like extending or retracting a cylinder. This control is essential for the precise operation of machinery and equipment in various industrial applications.
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One of the application of the control valve with positioner is that it is used to control the opening and closing of the actuator based on electric or pneumatic signals. The opening or closing of control valves is usually done automatically by electrical, hydraulic or pneumatic actuators.
positioners are used to control the opening or closing of the actuator based on Electric , or pneumatic signals
actuator is a mechanism that will responds to hydraulic,pneumatic and electrical signal ,it is used to control the valve that to be in open or close condition.
A monostable pneumatic valve is a type of valve that has a single stable state and returns to that state when not actuated. It typically requires an external force, such as air pressure, to change its position, and once the force is removed, the valve automatically returns to its default position. This design is commonly used in applications where a simple on/off control is needed, allowing for efficient control of pneumatic systems. Monostable valves are often found in automation and process control systems.
Pneumatic process control valves are used in process industries to control the flow of fluid by using pneumatic actuators. It requires 4.5 to 6 Kg/sq. cm of pressure to operate the valve. Control room sends electrical signals of 4-20 ma to field where I/P converter converts these electrical signals into pneumatic signals. Actuators use these signals to operate the valve. Actuators moves the stem up and down depending upon input signals and control the valve opening. 4ma- 0% opening 8ma- 25% opening 12ma- 50% opening 16ma- 75% opening 20ma- 100% opening
pneumatics are used only in low power applications hydraulics are used in medium to high power applications.
Pneumatic is defined as air driven and therefore the two terms are synonomous. However pneumatic is not as frequently used in describing a valve.
Pneumatic valves are used to close valves in high-speed internal combustion engines, pneumatic valves are mostly to help racing engines to get to high speeds.
A spring detent valve is classified as a type of directional control valve. It uses a spring mechanism to hold the valve in a specific position, allowing fluid flow in a designated direction while preventing it from moving unintentionally. This type of valve is commonly used in hydraulic and pneumatic systems to provide reliable control and maintain system stability.
One-way valve is used for the hydraulic fluid does not return.
Specialityvalve is one of the top-most Pneumatic Globe control valve manufacturer in India. They are mainly used in industries to handle or regulate water, air, steam, gas, oil and other fluids in processes having wide flow range requirements. Today, the market demand for installation and use of pneumatic control valves is huge, not only in industries but also in daily life. Pneumatic Globe Control Valve allows precise control of flow rates and speed of the system. It is a type of Globe valve that allow control of flow rate and speed in the system. Industries Oil and Gas Chemical Petrochemical Refineries Advantages Good ability to switch Simple structure, convenient production and maintenance Good ability for flow regulation Stroke for valve opening and closing is greater than Gate Valve Description Body material- Brass, Bronze, Titanium, Cast Iron, Cast Steel (A216 WCB, WCC, LCB, LCC, WWC6, WC9, CF8, CF8M), Cast Ductile Iron Class- 150 to 2500 PN10 to PN450 Size- ½” to 80” End Connection- Buttweld, socket weld, flanged, threaded Operation- Pneumatic actuated Specialityvalve is one of the best Pneumatic Globe control valve manufacturer in India