Pneumatic Control Butterfly Valve

The pneumatic regulating butterfly valve has the advantages of simple and compact structure, convenient processing, easy to manufacture large diameter, self-cleaning action, small drag coefficient and large circulation capacity. It is additionally equipped with a valve positioner, which can be controlled by input control signals (4-20mADC) and a gas source of 0.4-0.7MPa. Pneumatically regulated butterfly valves are suitable for the regulation of fluids in suspended particles and in concentrated, turbid slurry fluids. Clean media can be replaced with a valve plate with a soft seal (rubber ring, PTFE ring) to reduce leakage (up to zero leakage). The high-temperature and high-pressure working conditions can be selected by a three-eccentric hard sealing valve body. Pneumatically regulated butterfly valves are the best means of regulating flow and shutting off fluids in automated control systems. Therefore, the pneumatic regulating butterfly valve is widely applied to the pipeline of corrosive medium such as metallurgy, electric power, petroleum, chemical, air, gas, combustible gas and water supply and drainage with medium temperature â?¤550°C.

Pneumatic Butterfly Valve (Wafer) Nominal Diameter: DN40-600 Pressure Range: 0-16bar Medium Temperature: -20C~+80C Valve Body Material: Gray cast iron, ductile cast iron, cast steel, stainless steel Sealing Material: NBR, EPDM, FPM Valve Disc Material: Ductile cast iron, cast steel, stainless steel, nickel alloy Feature: Double bubble and zero leakage, double (single) stem without pin Applicable Medium: Drinking water, sewage, high-purity water, sea water, air, etc Operating Pressure: 3-8bar PC to carton box, carton box to plywood case

pneumatic butterfly valve We are the manufacturer of solenoid valves,angle seat valve,pneumatic actuator, pneumatic ball valve, pneumatic butterfly valve, pneumatic solenoid valves, pneumatic filter, regulator, pneumatic hose and fittings, pneumatic cylinder.

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

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