Pneumatic soft seal Wafer butterfly valve
Product features
Pneumatic butterfly valve is a specially designed and carefully manufactured product based on the introduction of advanced foreign technology. The butterfly valve is equipped with a stroke limit switch, a solenoid valve, a triple piece and a 0.4-0.7MPa air source to achieve switching operations, and sends two pairs of passive contact signals to indicate the valve's switching. When using intelligent control and positioning, it is matched with a domestic electric valve positioner and inputs a 4-20mADC signal and a 0.4-0.7MPa air source to realize intelligent control and adjust parameters such as pressure, flow, temperature, and liquid level. It is powered by compressed air, and the valve stem drives the valve core to rotate 90°C in the valve body, which can achieve fully open-fully closed actions. This product is divided into metal seal and soft seal according to its sealing performance. It has the advantages of compact structure, small size, reliable operation, good sealing, easy maintenance, convenient installation and strong adaptability. It can be widely used in industrial automatic control systems such as petroleum, chemical industry, light industry, pharmaceuticals, papermaking, automobiles, etc. for remote centralized control or local control.
Nominal diameter: 15~1000mm
Nominal pressure: PN1.6MPa
Connection form: flange type press JB78-59 JB79-59
Materials: WCB, HT200 ZG25I ZG1Cr18Ni9Ti, ZG0Cr18Ni12Mo2Ti, CF8, CF8M lined with tetrafluoroethylene
Temperature range: normal temperature -20℃~+200℃
Medium temperature +200℃~+450℃
Filling: V-shaped PTFE packing, impregnated PTFE packing, asbestos braided packing, flexible graphite.
Valve core type: valve plate
Flow characteristics: linearity or equal percentage continuity Material: 1 Cr18Ni9Ti 0Cr18Ni12Mo2Ti
Seat material: polytetrafluoroethylene (PTFE), rubber, metal seat
Valve stem material: stainless steel, lined with PTFE, adjustable ratio: 100:1
Our advantages
Large torque/long life/easy adjustment
In-cylinder grinding and anodizing hard oxidation treatment Long wear-resistant service life, standard length The cylinder does not shorten the stroke and has sufficient torque to produce large amounts of torque.
High-end pinless valve plate
The pinless design of the valve plate isolates the fluid from the valve stem and prevents the pins from falling off and leaking out from the valve plate. The precision hexagonal shaft drives the pinless valve plate to rotate, eliminating the need for screws and pins, making maintenance and replacement more convenient.
High quality EPDM rubber Valve body epoxy coating
EPDM rubber valve seat has good aging resistance Acid and alkali resistance, corrosion resistance. Temperature resistance -20% to 120℃ Valve body epoxy resin coating, corrosion-resistant and wear-resistant Impact resistant, the coating is not easy to fall off.
Inverted V-shaped sealing ring Make sure the valve shaft does not leak
Self-adjusting V-shaped sealing ring ensures two-way sealing Prevent leakage from the valve stem.
Product images
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