Hearken pneumatic butterfly valves feature a short face-to-face dimension and a low-torque design. This compact structure delivers high drive efficiency and reliable sealing while saving your installation space. It helps you minimize your overall valve package costs, especially in large-diameter applications.
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Pneumatic Actuated Butterfly Valve Manufacturer
Your Professional Pneumatic Actuated Butterfly Valves Manufacturer In China
Hearken pneumatic butterfly valves give global distributors a guaranteed 15–25 day standard leading time. We supply wafer, lug, and flanged connection designs with EPDM, PTFE, NBR, or Viton seats. This wide specification coverage allows you to match client RFQs instantly. This technical flexibility helps your business win more bids and build long-term customer trust. For volume contract orders, this pneumatic operated butterfly valve line supports custom branding, neutral packaging, and localized certifications. Every pneumatically actuated butterfly valve is fully assembled and 100% tested before shipment. This complete package guarantees reliable field performance and eliminates your local assembly costs, directly increasing your procurement profit.
Soft Seal Pneumatic Butterfly Valves

Pneumatic Fluorine-Lined Wafer Butterfly Valve
The pneumatic resilient seated butterfly valves feature heavy-duty lining options, including FEP, PTFE, and PFA.

Air Actuated Soft Seat Wafer Style Butterfly Valve
The air-actuated soft seat wafer-style butterfly valve features a compact wafer design to minimize your pipeline installation space.

Pneumatic Actuator UPVC Flange Butterfly Valve
The UPVC pneumatic butterfly valves deliver excellent corrosion resistance and electrical insulation performance.

Stainless Steel Sanitary Pneumatic Butterfly Valve
The sanitary pneumatic butterfly valve is engineered for sanitary conditions and allows for fast disassembly and easy cleaning.

Ductile Iron Pneumatic Operated Soft Seal Butterfly Valve
This cast iron pneumatic-operated soft seal butterfly valve line ranges from DN50 to DN500. It covers standard sizes, including the 3-inch, 4-inch, and 6-inch pneumatic butterfly valve.
Hard Seal Pneumatic Butterfly Valves
The hard-seal pneumatic butterfly valves are built for high-pressure and high-temperature environments, ensuring long-term durability and minimal leakage.

Hard Seal Pneumatic Flange Triple Eccentric Butterfly Valve
This pneumatic butterfly valve uses a multi-layer metal hard seal design, making it ideal for high-pressure working conditions.
Why Choose Hearken Pneumatic Butterfly Valves?
Cost-Efficient, Safety-Assured
Hearken pneumatic butterfly valves deliver fast, high-frequency shut-off and zero-leakage sealing. As a direct manufacturer of both the valve and the pneumatic actuator in China, we eliminate mid-vendor markups and engineering mismatches from outsourced components. Every butterfly valve with the pneumatic actuator is fully tested. We design each unit with a 30% to 50% torque safety margin to handle pipeline pressure fluctuations. This compact design minimizes your initial procurement costs while guaranteeing field reliability.


Millisecond Isolation
Hearken pneumatic butterfly valves snap shut in milliseconds during emergency trips due to optimized pneumatic ports and lightweight, low-inertia discs. This rapid cut-off provides immediate, reliable fluid isolation to satisfy strict global safety mandates. Our verified emergency shutdown (ESD) performance helps you meet rigorous project specifications and eliminates operational risks for your clients.
Engineered Sealing Integrity


Hearken pneumatic control butterfly valves feature anti-blowout stems and multi-layer V-ring packing to handle continuous pipeline pressure fluctuations. The rugged configuration prevents trace leakage even under harsh conditions. This durable design extends operational longevity to reduce your after-sales service costs and protect your volume order margins.
Integrated Precision, Flexible Configuration

Engineered for Skid Integration
Hearken pneumatic actuator butterfly valves feature a compact layout and standardized dimensions optimized for high-density piping. This space-saving design ensures easy piping alignment and seamless drop-in installation. The efficient setup directly helps you accelerate project execution and shorten your project delivery cycles.

Flexible Instrumentation Options
Hearken pneumatic butterfly valve packages support various control accessories. Our precision integrates and tests the exact solenoid valves, limit switches, positioners, and filter regulators based on your technical needs. This single-source setup allows the assembly to adapt to different specifications and expands your market.
Partner with Hearken
Hearken pneumatic butterfly valves handle standard industrial media, including water, steam, oil, and gas. The low-torque disc design reduces mechanical wear to extend pneumatic actuator lifespans. This rugged construction reliably operates across temperature ranges from -30°C to 180°C (-22°F to 356°F) while ensuring bidirectional zero leakage. Our high-frequency valve technology eliminates pipeline bottlenecks and speeds up project execution across your distribution network.
Pneumatic Butterfly Valve by Application
FAQ
Hearken shapes the valve discs to reduce fluid drag. Our engineers size each actuator based on peak dynamic torque instead of static friction. This specific torque margin prevents jamming during quarter-turn cycling under full pressure.
The stem is locked by an internal anti-blowout shaft design with heavy-duty retaining rings. Our self-adjusting V-ring PTFE packing and dual O-rings stop leaks and blowout risks when pressure spikes.
Our mining configuration matches wear-resistant rubber liners with anti-wear discs. This heavy-duty design resists the mechanical erosion of mine water and dense tailings.
Our series uses a resilient seat design that seals fully in both flow directions. The factory pressure-tests 100% of units before shipping.
Our valves use high-purity PTFE, RPTFE, or Viton (FKM) seals with custom-calculated clearances. This internal structure handles quick thermal shifts from -30°C to 180°C without seat locking.
Yes. All standard top flanges match ISO 5211 dimensions. This allows direct installation with your existing pneumatic or electric actuators to save extra machining costs.
Our pneumatic actuators feature standard NAMUR VDI/VDE 3845 interfaces. You can bolt on standard APL-210N limit switch boxes, solenoid valves, and positioners directly.
Our full pneumatic butterfly valve lines carry ATEX and CNEX safety certifications for hazardous industrial areas.
Yes. Hearken offers complete OEM options, including laser nameplates, custom paint colors, and neutral unbranded packaging. This service protects your local distribution rights.
Hearken delivers bulk orders within 15 to 25 days. Our large stock of castings and standard components keeps your project timeline on schedule.








