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.
The pneumatically regulated ball valve is a rotary ball valve with a 90° angle, which can also be called a pneumatic O-type ball valve. It is composed of a pneumatic actuator with a quarter stroke and a ball valve. It is a specially designed and carefully manufactured product based on the introduction of foreign advanced technology. The pneumatically regulated ball valve adopts intelligent control and positioning, and it is matched with the electric valve positioner. It can control the operation by inputting 4~20mADC signal and 0.4~0.7MPa air source to realize the adjustment of pressure, flow, temperature and liquid level. Pneumatically regulated ball valves are powered by compressed air. The valve stem drives the valve core to rotate 90° in the valve body to achieve full-opening-closed action. Pneumatically regulated ball valves are classified into metal seals and soft seals according to their sealing properties. The pneumatic O-type regulating ball valve has the advantages of compact structure, small volume, reliable operation, good sealing performance, easy maintenance, convenient installation and strong adaptability. Pneumatically regulated ball valves are particularly suitable for applications where the media is viscous, particulate-containing, or fibrous. Pneumatically regulated ball valves are widely used in industrial automation control systems such as petroleum, chemical, teaching equipment, light industry, high-voltage equipment, pharmaceutical, papermaking, etc. for long-distance centralized control or local control
MATIREAL - CAST IRON / CAST STEEL / STAINLESS STEEL 304/316/316L / WCB BALL - STAINLESS STEEL 304 / 316//316L STEAM - STAINLESS STEEL 304/316 GLAND NUT - 304 / 316 STAINLESS STEEL SEAT - PTFE/CTFE/GTFE SIZE - 1/4 INCH TO 4 INCH
MATIREAL - CAST IRON / CAST STEEL / STAINLESS STEEL 304/316/316L / WCB BALL - STAINLESS STEEL 304 / 316//316L STEAM - STAINLESS STEEL 304/316 GLAND NUT - 304 / 316 STAINLESS STEEL STUD NUT - STAINLESS STEEL 304 SEAT - PTFE/CTFE/GTFE
MATERIAL - CAST IRON / CAST STEEL / WCB / STAINLESS STEEL 3O4/316/316L BALL - STAINLESS STEEL 304 / 316 STEAM - STAINLESS STEEL 304/316/ GLAND NUT - STAINLESS STEEL 304/316 LEVER - STAINLESS STEEL 304 SEAT - PTFE / CTFE / GTFE STUD NUT - STAINLEES STEEL 304
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
Overview of pneumatic regulating ball valve: According to the structural form, the pneumatic regulating ball valve can be divided into pneumatic O-type regulating ball valve or dynamic V-type regulating ball valve. It is mainly used with the valve positioner to make a press signal according to the input and output 4.20mA, so that Control the rotation opening of the ball valve valve. To achieve the proportional adjustment of pipeline medium pressure, flow rate, liquid door and other parameters, among them, the pneumatic/type adjustment glass closure has knotted and removed shape objects (throwing gaps, which can adjust the flow rate according to the change of the opening area in the middle of the field, and can cut off the fluid Closed by impurities contained in the medium, suitable for the control of pulp, mortar, viscous fluid, Pneumatic regulating ball valve principle: The pneumatic regulating ball valve uses compressed air as the driving force to drive the ball flower to rotate back and forth, so as to achieve the opening and closing of the valve. Size, to achieve different degrees of proportional adjustment to the medium flow. When the pneumatic actuator receives the signal from the control system, it generates a corresponding thrust according to the size of the control force, and pushes the adjustment mechanism to drive the valve core to move, and completes the flow and pressure adjustment of the medium in the pipeline. It has a large rated flow coefficient. , good sealing effect, adjustable performance, etc.
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
ultra small flow needle valve is a kind of top guide single seat valve, it has a simple structure, good sealing performance, reliable use and so on. The top guide system is effective enough to overcome the small opening shock, effective and long service life. A smaller flow coefficient is chosen to increase the use of the valve. Multi spring pneumatic film mechanism or electric actuator can be selected. The valve is the use of , professional development of a small flow of the operating conditions of a product. The body is small in size and light in weight, and the inner screw thread structure is more convenient to be installed and disassembled. The whole body has the characteristics of small size, light weight, high performance and precise control of micro flow.Does not apply to the medium of the more dirty occasions, adjusting the media containing granular media, should be aimed at the problem of small throttle clearance, pay attention to prevent the occurrence of blocking card phenomenon. Especially suitable for liquid, steam and other media in the mainstream of the regulation. required. Design featuresThe small opening range can be adjusted continuously The top guide structure, anti vibration The valve cone seal, the sealing effect is good Multi word design, good adjustment performance Valve seat spray welding hard alloy, corrosion resistance, long life Small size, light weight, easy to install The actuator mounted interchangeableTechnical parameterBody form Straight through type forging valve body Spool form Non balance type single seat valve Nominal diameter DN8 25 NPS 1/4" 1" Nominal pressure PN1.6 32.0MPa CALSS 150 1500 LB Applicable temperature 196 650 Optional Connection form Flange, Welding, Screw thread Flange distance Meet IEC 60534 Non-standard customization Gland form Bolt pressing type Sealing gasket Metal graphite gasket, PTFE Seal up PTFE, flexible graphite Actuatorï¼?Pneumatic actuator, electric actuator
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