China Butterfly Valve Manufacturers, Suppliers, Factory - Customized Butterfly Valve

Wuxi PYNOS Flow-tech Co., Ltd. : Your Professional Butterfly Valve Supplier in China

PYNOS VALVE is a professional valve manufacturer integrating research, development, testing, production, sales, and after-sales service. Additionally, we are equipped with world-class valve processing and manufacturing equipment.

Advanced Production Equipment

Our factory is equipped with advanced CNC lathes, boring machines, CNC grinding machines, drilling machines, milling machines, and planers.

Wide Applications

Our products are widely used in the petroleum, chemical, power, natural gas, and coal chemical industries.

Guaranteed Quality

Our products have obtained multiple certifications, including ISO 9001, CE, and SIL3.

Customizable

The materials, dimensions, and connection methods of our products can all be customized.

Concentric Butterfly Valve
The Concentric Butterfly Valve is a valve for pipeline flow control, available in bulk and customizable.
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Double Offset Butterfly Valve
The double offset butterfly valve is a high-performance industrial valve available in bulk and customizable versions for controlling the flow of liquids, gases, and steam.
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Triple Offset Butterfly Valve
The Triple Offset Butterfly Valve is a high-performance industrial valve suitable for fluid regulation and shut-off in pipeline systems such as oil and gas and chemical industries. It can be ordered
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High Performance Cryogenic Butterfly Valve
The High Performance Cryogenic Butterfly Valve is a valve for regulating the flow of cryogenic pipeline media, available in bulk and customizable.
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Lined Butterfly Valve
Lined Butterfly Valve is a corrosion-resistant butterfly valve designed for conveying corrosive liquids and gases. It is available in bulk and can be customized.
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Introduction

A Butterfly Valve is a type of flow control device used to regulate or isolate the flow of liquids, gases, or slurries in a pipeline.

Features of Butterfly Valve

Simple and Compact Design

Butterfly valves are lightweight and take up less space than gate or globe valves, making installation easier and reducing piping support costs.

Quick Operation

Quarter-turn design allows fast opening and closing, improving system response and efficiency.

Versatile Applications

Suitable for water, oil, gas, steam, and corrosive media in industries like HVAC, chemical, water treatment, and power plants.

Wide Size Range

Available from small (DN15) to large (DN2000+) diameters, supporting diverse pipeline systems.

Specification

Product name	Butterfly valve
Size Range	2" ~ 42"
Pressure Range	ANSI 150-300
End Connection	RF/BW
Operation	Manual operation, Actuated operation
Seat	Soft Seat in PCTFE ,Metal to Metal, Metal+Graphite
Fugitive Emission Test	ISO 15848-2

Customization Options

Valve Body Material
Custom materials such as ductile iron, carbon steel, stainless steel (304/316), or special alloys to match media and corrosion requirements.

Disc Material and Coating
Discs can be stainless steel, bronze, or alloy steel. Optional coatings like epoxy, nylon, or PTFE improve corrosion and wear resistance.

Seat (Seal) Options
Soft seats (EPDM, NBR, PTFE) for tight sealing, or metal seats for high temperature and abrasive applications.

Pressure and Temperature Rating
Customized pressure classes (PN10–PN40, Class 150–300) and temperature limits to suit specific working conditions.

Connection Standards
Available in wafer, lug, flanged, or double-flanged designs. Flange standards can be customized (ANSI, DIN, JIS, BS).

Actuation Options
Manual lever, worm gear, pneumatic actuator, electric actuator, or hydraulic actuator based on control needs.

Certificate

FAQ

Q: What are butterfly valves mainly used for?

A: They are used for on/off and throttling control in water, gas, oil, steam, and chemical pipelines.

Q: Why choose a butterfly valve instead of other valves?

A: Butterfly valves are compact, lightweight, cost-effective, and easy to install, especially for large diameters.

Q: What types of butterfly valves are available?

A: Common types include wafer, lug, flanged, double-flanged, concentric, double offset, and triple offset.

Q: How do I select the right seat material?

A: EPDM for water, NBR for oil, PTFE for chemicals, and metal seats for high temperature or abrasive media.

Q: What pressure and temperature ranges can butterfly valves handle?

A: They are available from PN10 to PN40 and ANSI Class 150 to 300, with temperature limits depending on seat type.

We're well-known as one of the leading butterfly valve manufacturers and suppliers in China. If you're going to buy high quality butterfly valve, welcome to get more information from our factory. Customized orders are welcome.

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