High Performance Pneumatic Actuated Butterfly Valve for Fluid Control

High-Performance Pneumatic Butterfly Valves for Precision Flow Control

The buttrfly valves are powered by pneumatic quarter-turn (90°) actuators, available in both double-acting (for consistent bi-directional power) and single-acting (spring-return for fail-safe operation) configurations. Our pneumatic butterfly valves represent the pinnacle of reliability and efficiency in industrial flow control systems. Engineered for durability and precise operation, these valves are the optimal solution for automated on/off and modulating control in a wide range of applications, including water treatment, chemical processing, HVAC, power generation, and general industrial services.

product details

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Product Documents

Product Introduction

The pneumatic actuator featuring a high-strength aluminum alloy housing and an efficient rack-and-pinion drive mechanism, this actuator delivers powerful, smooth, and rapid quarter-turn operation. The aluminum construction ensures excellent corrosion resistance while keeping the unit lightweight, and the precision-engineered rack-and-pinion design guarantees high torque output, minimal friction, and long service life with minimal maintenance. Actuator are available in double-acting and spring-return models to suit various safety and operational requirements.

Production Features

● Advanced Actuator Design: Utilizes a lightweight, corrosion-resistant aluminum alloy body with an internal rack-and-pinion gear mechanism for consistent, high-torque operation and fast response times.

● Comprehensive Valve Range: We offer a complete selection of butterfly valve types to fit any piping system need

● Wafer (Lugless) Butterfly Valves: Designed to fit between two pipe flanges, secured by longer bolts through both flanges.

● Lugged Butterfly Valves: Feature threaded inserts (lugs) on the valve body, allowing installation using bolts only through the valve lugs.

● Material & Construction Excellence: Valve bodies and discs are available in various materials including ductile iron, stainless steel (SS304, SS316), and coated options for compatibility with diverse media (water, air, mild chemicals, oils). High-performance elastomer seals (EPDM, NBR, Viton) ensure a bubble-tight seal and reliable service.

● Versatile Sizing & Compatibility: Available in a wide range of standard sizes.

● Integrated Control: Easily interfaces with standard 4-20mA control signals, solenoid valves, and positioners for seamless integration into PLC and DCS-controlled automated systems.

Production Specification

Body		Disc		Seat		Stem
Name	Code	Name	Code	Name	Code	Name
Nickel-plating Ductile Cast Iron	-	CF8	P	NR	X1	2 Cr13 Quenching
Nickel-plating Ductile Cast Iron	Q	CF8	P	EPDM	X3	SUS304
Nickel-plating Ductile Cast Iron	Q	CF8M	R	NBR	X5	SUS316
Nickel-plating Ductile Cast Iron	Q	CF8	P	Si	X6
Nickel-plating Ductile Cast Iron	Q	tetrafluoride	F46	FPM	X7
Nickel-plating Ductile Cast Iron	Q			PTFE	F4

Performance of Seal

Seal material	Temperature	Medium	Remark
NR	-20~85℃	Wine, drink, pharmaceutical
NBR	-12~85℃ -12~93℃（short time）	Fresh water, sea water, air, gas, chemical, oil, alcohol, etc
EPDM	-40~120℃ -50~145℃（short time）	Water, drink, milk products, low pressure steam, etc	Oil and strong acid are forbidden
Si	-65~180℃	Water, oil, vapour, etc
FPM	-23~180℃	Water, oil, air, acid, etc
PTFE	-20~85℃	The corrosive medium such as acid, alkali, drink, pharmaceutical

Pneumatic Actuator Specification

Actuation	Double-acting, Spring-return, Quarter-turn
Size	Double Acting/Spring Return 32~Double Acting/Spring Return 400
Power supply	Pneumatic
Product type	Pneumatic Rack and Pinion Actuator
Control type	On/Off, Pisitioning
Output torque value	Double Acting : 3.1 ～ 13022Nm Spring Return：2.9 ～ 4199Nm
Max. air supply pressure	8Bar (120psi)
Operating temperature	Standard temperature range: -20°C ~ 80°C (-4°F ~176°F) Low temperature range: -40°C ~ 80°C (-40°F ~176°F) High temperature range: -20°C ~ 150°C (-4°F ~302°F)
Strike adjustment:	both direction open and close positions(+, - 5°)
Valve type	Ball, butterfly, plug and any other quarter turn application
Valve mounting and drive dimensions	ISO 5211/DIN 3337
Accessories	switch box, positioner, manual override, solenoid vale, etc
Mounting for solenoid valves and switch box	NAMUR standard (VDI/VDE 3845)
Service life	rated at 700,000 to 1,000,000 operations
Certifications	CE, ISO9001, ATEX 2014/34/EU, SIL3 ECM, ECM 22 ATEX - AR C015, SGS

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