Pneumatic Gate Valves
Ideal Choice for Reliable Shut-Off in Large-Diameter Pipelines
KINKO Pneumatic Gate Valve
KINKO pneumatic gate valves are driven by double-acting cylinders with dual-layer cylinder construction and buffer mechanisms for smooth valve operation. Suitable for media isolation and regulation in petroleum, chemical, power, metallurgy and other industries.
Behind Every Solution:
- Nominal Diameter:DN50~500mm
- Nominal Pressure:1.0, 1.6, 2.5, 4.0MPa; 150Lb, 300Lb
- Dimension Standard:GB, ANSI
- Body Material:Cast Iron, Carbon Steel (WCB), Stainless Steel (CF8, CF8M, CF3, CF3M)
- Temperature Range: -29～425℃ (Carbon Steel) / -40～550℃ (Stainless Steel)
- Applicable Medi:Water, Steam, Oil, Nitric Acid, Acetic Acid and other corrosive fluids
Product Category
Technical Support
- Response within 24 Hours
- 18-Month Warranty
- 24/7 Technical Support
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Pneumatic Flange Gate Valve
Model
Z641(0) H(Y)
Nominal Diameter
DN50~DN800
Pneumatic Discharge Valve
Model
QFL-PN16~40, Class 150~300
Nominal Diameter
DN25~DN250
Pneumatic Knife Gate Valve
Model
PZ673H(F, Y)
Nominal Diameter
DN50~DN1200
Pneumatic Gate Valve
Model
Z641H
Nominal Diameter
DN50~DN500
Pneumatic Slurry Knife Gate Valve
Model
Z673X
Nominal Diameter
DN50~DN500
Pneumatic Double Gate Valve
Model
Z644H
Nominal Diameter
DN50~DN300
Pneumatic Gate Valve
Model
Z673X
Nominal Diameter
200*200-1000*1000
Design Principles
Why are KINKO Pneumatic Gate Valve so durable?
KINKO pneumatic gate valves are straight-stroke valves driven by pneumatic actuators (dual-layer cylinders with buffer mechanisms) that move the gate perpendicular to the fluid flow for opening and closing operations. The valve can be equipped with manual override and protection mechanisms (manual and pneumatic-manual conversion devices) for convenient manual operation during air supply failure. With a low-bracket rising stem design, the valve features low flow resistance, reliable sealing performance, and long service life. Products are widely used in pipeline systems across petroleum, natural gas, chemical, power, metallurgy, water treatment and other industries.
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The Core Advantages of KINKO Pneumatic Gate Valve
High Thrust Output
Dual-layer cylinder construction provides powerful opening/closing thrust for large-diameter valves
Buffer Protection
Built-in buffer mechanism reduces impact during operation, extending valve service life
Manual Override
Equipped with pneumatic-manual conversion device for easy manual operation during air supply failure
Low-Bracket Design
Rising stem design facilitates on-site maintenance and visual inspection
Reliable Sealing
Metal hard seal suitable for high temperature, high pressure, and corrosive media
Double-Acting Drive
Fast response and sensitive operation, ideal for frequent cycling
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FAQ
What are the advantages of pneumatic gate valves compared to electric gate valves?
Pneumatic gate valves use compressed air as the power source, offering fast response times and suitability for frequent cycling applications. Pneumatic actuators are inherently explosion-proof without additional treatment, making them particularly suitable for flammable and explosive environments such as petrochemical plants. Compared to electric gate valves, pneumatic gate valves have simpler construction and lower maintenance costs.
How reliable is the sealing performance of KINKO pneumatic gate valves? Is there any internal leakage?
KINKO pneumatic gate valves feature metal hard-sealing construction with precision-machined and hardened gate and seat surfaces, overlaid with Stellite alloy to ensure reliable sealing performance even under high temperature and high pressure conditions. Every valve undergoes strict pressure testing and leakage inspection before delivery to ensure zero-leakage performance
Can the valve be operated manually during air supply failure?
Yes. KINKO pneumatic gate valves can be equipped with a pneumatic-manual conversion device. When air or power supply fails, the handle can be easily turned to quickly switch from pneumatic to manual operation mode, ensuring normal pipeline operation and preventing accidents
What media and temperature ranges are KINKO pneumatic gate valves suitable for?
KINKO pneumatic gate valves are suitable for water, steam, oil, nitric acid, acetic acid, and other corrosive fluids. With WCB carbon steel body, the temperature range is -29～425℃; with stainless steel (CF8/CF8M), the range extends to -40～550℃
How do I select the right actuator model for a pneumatic gate valve?
Actuator selection depends on valve torque, media pressure, operating temperature, cycling frequency, and other factors. KINKO provides professional sizing support services to calculate the required thrust based on your specific operating conditions and recommend the appropriate actuator model and cylinder specifications
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