Custom Pneumatic operation wafer butterfly valve double acting Suppliers, Factory

Type: Concentric Resilient Seated

Series: D671X

Size: DN40-DN600/2”-24"

Pressure rating: PN6/PN10/PN16/5K/10K/150LB

Design standard: EN 593, API 609

Service: OEM&ODM

The pneumatic wafer butterfly valve is a commonly deployed industrial valve that derives its driving force from compressed air and adopts a wafer connection configuration, characterized by a compact structural design and flexible operational capability.

Product Description

Valve Type: Wafer butterfly valve Structure: Concentric
Standard: EN593 Workmanship: Investment casting
Sealing Direction: Bidirectional Sealing Grade: Zero leakage
Temperature: -20°C < T < 120°C Operation: Pneumatic
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Characteristics

Pneumatic butterfly valves are powered by compressed air. As compressed air enters the pneumatic actuator, it drives internal components such as pistons or rack and pinion mechanisms to move, which in turn rotates the valve stem and butterfly disc to open or close the valve. The integration of a valve positioner enables precise control over the butterfly disc’s rotation angle, allowing for accurate regulation of pipeline media parameters including flow rate and pressure.

Pneumatic wafer butterfly valve single acting spring type
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Advantages

Flexible operation: Pneumatic actuators respond quickly, can achieve rapid opening and closing, and can be integrated with automation systems for remote control.
Low flow resistance: When the butterfly plate is opened, the effective flow area is large, and the resistance when the medium flows through is small, which is conducive to energy conservation.
Wide material selection: Suitable valve body and seal materials can be selected according to the characteristics of different media to meet requirements such as corrosion resistance and temperature resistance.
Characteristics
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Packing

Standard export wooden case packaging

packing
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Application Scenarios

The pneumatic wafer butterfly valves have a broad application scope spanning municipal engineering, industrial manufacturing, and public utility systems. Primarily designed for the on-off control and flow regulation of fluid media, they are particularly well suited for applications with space constraints and automated operation requirements.

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Application Scenarios
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Material Specifications

Body Disc Stem Bushing Seat
Name Code Name Code Name Name Name Code Working Temp
Cast ironZ Plated ductile ironB1 Stainless steel Lubrized bronze NRX1 -20~+85℃
Ductile ironQ Aluminum bronzeB2 HypalonX2 -23~+121℃
Aluminum bronzeT Stainless steelB3 EPDMX3 -23~+121℃
Stainless steelP Titanium steelB4 NeopreneX4 -7~+93℃
CF8MR CF8MB5 NBRX5 -23~+100℃
Carbon steelC Carbon steelB6 PTFEF4 +10~+150℃
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Dimensions

size chart
DN (mm) DN (inch) A B C D L H D1 n-Φ
502"161804252.93284.841204-Φ23
803"1819545.278.83261.231608-Φ18
1004"20011452.11043270.801854-Φ24.5
1506"22613955.8155.63291.082384-Φ25
2008"26017560.6202.545112.892954-Φ25
30012"33724276.9301.645105.344074-Φ29
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Frequently Asked Questions

1. What is the power source for these butterfly valves?
These valves are pneumatically operated, meaning they are powered by compressed air which drives the internal actuator to open or close the disc.
2. Can the flow rate be regulated precisely?
Yes, by integrating a valve positioner, the rotation angle of the butterfly disc can be controlled precisely for accurate regulation of flow rate and pressure.
3. What is the standard temperature range for operation?
The standard working temperature range is between -20°C and 120°C, though specific materials like VITON or PTFE can extend this range.
4. Is the sealing performance reliable?
Yes, these wafer butterfly valves are designed for bidirectional sealing with a "zero leakage" sealing grade.
5. What materials are available for the valve seat?
Available seat materials include NR, Hypalon, EPDM, Neoprene, NBR, VITON, and PTFE to suit various medium and temperature requirements.
6. In which industries are these valves commonly used?
They are widely used in municipal engineering, industrial manufacturing, and public utility systems, especially where space is limited and automation is required.

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