Pressure Control Valve
Pressure control valves are capable of regulating the system pressure to adjust the force on the hydraulic piston rod or the torque on the hydraulic motor shaft. Pressure relief valves are used to set the maximum pressure in the circuit and prevent it from being overloaded. Pressure reducing valves permanently maintain the output pressure at the set value while preventing overloading of the equipment. Unloading valves are designed for economic pressure control in accumulator operating circuits and are used as a power source for emergency control.
Classification of pressure control valve
In the pneumatic transmission system, all pressure control valves work on the principle of balance between air pressure and spring force, which can be divided into the following three categories:
1. Pressure reducing valve. Also known as pressure regulating valve, setting device (precision pressure reducing valve), etc., it plays the role of pressure reducing and stabilizing;
2. Overflow valve. Also known as safety valve, pressure-limiting shut-off valve, etc., it plays the role of pressure-limiting safety protection;
3. Sequence valve and balance valve. Depending on the pressure of the gas circuit, some control is performed.
Next, we mainly introduce you this single-seat cut-off pressure control valve.
Single Seat Globe Pressure Control Valve advantages:
Hydraulic pressure control valve has Long life
1. Single Seat Globe Control Valve Valve Trims
According to the needs of the working conditions, different materials and surface hardening treatment can easily be chosen to meet the requirements of each function module of trim to improve its performance of the corrosion, cavitation and erosion resistant, lengthen service life.
2. Pressure Control Valve body
The body of LN8 Single Seat Globe Valves consists of two passages from upper and lower, forming a shape like letter "S". The design of an elliptical section reduces the flow resistance and turbulent flow to keep the flow fluent. The flap in the middle of upper passage can reduce the eddy flow and increase the flow capacity.
3. Single Seat Globe Valve Actuator
The standard mate of Single Seat Globe Valves is AM8 Multi-spring pneumatic diaphragm actuator, which can be used in many conditions with the features of strong output force, high reliability, long lifespan and extensive applications. The output force changes with the number of springs. The high stress resistant diaphragm, bearing maximum pressure of 0.5 MPa air supply, gives globe valves a reliable shutoff. This type of actuator has a long life cycle with more than 1
Pneumatic control valves(globe), Size: Æ1Æ to 18ÆÆ, Max. Pressure / rating. Upto 2500# class ansi b 16.34. In wooden box (it is veries as per the size of control valve).
Model: 4a210-08 4a220-08 4a310-10 4a320-10 Operation type: Inside pilot type Fluid medium: 40 micron filtered air Position and way number: two-position five way Working pressure: 0.15--0.8mpa(21--114psi) Proof pressure: 1.2mpa(174psi) Working temperature: 5--50 degrees celsius Port size: Air inlet=air outlet=g1/4, exhaust=g1/8 Air inlet=air outlet=g3/8, exhaust=g1/4 Material: aluminium alloy Highest action frequency: 5 cycles/second Effective sectional area: 16mm (cv=0.89) 30mm (cv=1.68) Shortest excitation time: 0.05 second Weight: 185g 285g 275g 365g
Model Tv210-08 Tv310-10 Tv410-15 Operation type Direct drive type Fluid medium 40 micron filtered air Working pressure 0--0.8mpa(0--114psi) Proof pressure 1.2mpa(174psi) Working temperature 5--50 degree celsius
ZJHP/M-GW pneumatic high temperature control valve consists of a multi-spring pneumatic diaphragm actuator and a low flow resistance high temperature regulator valve body. The multi-spring actuator is low in height, light in weight and easy to install. The valve body runner of pneumatic high temperature control valve is S streamlined, which has the advantages of compact structure, light weight, sensitive action, small pressure drop loss, large valve capacity, accurate flow characteristics and convenient maintenance. It can be used in harsh working conditions. Pneumatic high temperature control valve It is equipped with an electric-gas valve positioning or a pneumatic valve positioner to achieve automatic adjustment control of the fluid medium in the process line. Pneumatic high temperature control valve is widely used in process parameters for precise control of gases, liquids, vapors, etc. For example, it can allow parameters such as pressure, flow, temperature, and liquid level to be maintained at a given value. Pneumatic high temperature control valve is especially suitable for occasions where the leakage is small, the pressure drop of the control valve is small and the temperature is high.
Feature: Suitable for clear fluid lines such as Water, Liquid, Gas, Steam, etc. This valve is used in systems that require precise flow control and where leakage and air-tightness are critical. Application: It is essential for the flow line of each industry. Mainly used in plant automation facilities due to excellent precision control such as flow rate, pressure, temperature, etc. Characteristics: 1. For excellent wear and tear resistance, Stellite welding is used by default on core components such as plug and seat ring. 2. It is possible to achieve excellent durability of the unfavorable fluid condition and high temperature through heat-treatment on parts of the stem and trim 3. The selection of accurate trim and material through extensive testing and rich experience in technical solution 4. In case of a product related problem, we have technical personnel who can immediately assess the situation and resolve the issue
Product Name: Stainless Steel Food Grade Sanitary Hygienic Manual Welded Butterfly Valve Valve Body Material: 1.4404/1.4301, SS304/SS316L(Forged) Disc: 1.4404/1.4301, SS304/SS316L(Forged) Seal Material: EPDM (standard) conforms to FDA177.2600 Operating Principles The butterfly valve can be operated automatically through actuator.The actuator push piston of axial movementinto 90 degree so that it controls butterfly valve Surface Finishing RA
Our manufacturing facility excels in producing Pneumatic Actuated Plug Control Valves that are designed for precision and reliability. These valves are crafted with meticulous attention to detail, utilizing high-grade materials such as ASTM A351 CF8 and ASTM A351 CF8M for exceptional durability and corrosion resistance. Available in a 4-inch size with a DN100 and Class 150 LB rating, as well as a PN16 pressure class, these valves are perfectly suited for a variety of industrial applications.
ZJHS pneumatic piston control valve consists of a ZSA (B) spring piston actuator and a compact single seat (sleeve) valve body. The structure is lighter and smaller, and the thrust is larger, but the sensitivity is slightly worse. pneumatic piston control valve is equipped with an electric-gas valve positioning or pneumatic valve positioner to achieve automatic adjustment and control of the fluid medium in the process pipeline. It is widely used in precise control of gas, liquid, steam and other media process parameters such as pressure, flow, temperature, liquid level and other parameters to maintain a given value. The spool of pneumatic piston control valve adopts balanced structure, large allowable pressure difference, good vibration resistance, low noise, good stability, easy assembly and disassembly, and different pressure ranges can be selected to obtain the required differential pressure.pneumatic piston control valve is used in industrial operation process automatic control systems that require low noise, large working pressure difference or limited installation position and fast response speed.
ZJHL pneumatic cage control valve is a top-guided low noise control valve consisting of a multi-spring pneumatic actuator and a low flow resistance cage regulator valve body. The multi-spring actuator is low in height, light in weight and easy to install. The valve trim uses a single-seat piloted spool. Pneumatic diaphragm cage control valve mainly uses the pressure of the fluid to achieve rapid movement of the spool and low operating force. The sealed type adopts a single-seat seal to achieve high accuracy of the flow characteristic curve. The valve body runner of pneumatic cage control valve is S streamlined, which has the advantages of compact structure, light weight, sensitive action, small pressure drop loss, large valve capacity, accurate flow characteristics and convenient maintenance. It can be used in harsh working conditions. The pneumatic diaphragm cage control valve has good dynamic stability, low noise and anti-cavitation, and it is suitable for controlling high-pressure differential fluids of various temperatures. The pneumatic diaphragm cage control valve is mainly suitable for occasions where the leakage is very small and the pressure drop of the control valve is large
