Quick Details

Place of Origin:

Zhejiang, China

Brand Name:


Model Number:








Temperature of Media:

High Temperature, Low Temperature, Medium Temperature, Normal Temperature




Hot and cold air, gas, dust

Port Size:


Work Pressure (MPa):


Drive Mode:

Manual, worm gear drive, electric, pneumatic, hydraulic

Applicable Temperature (℃):

-20 – +160

Applicable Medium:

Hot and cold air, gas, dust,gas, etc.

Design and Manufacture Standard:


Structure Length Standard:


Flange Size Standard:


Test Inspection Standard:


Pressure Temperture Standard:



Ventilation butterfly valve

Supply Ability

Supply Ability:
1000 Piece/Pieces per Week

Packaging & Delivery

Packaging Details
Standard export packing
Qingdao port, Shanghai Port, Tianjin Port, Ningbo port
Lead Time
Quantity(Pieces) 1 – 100 >100
Est. Time(days) 3 To be negotiated

Online Customization

Product Description

PneumaticVentilation Butterfly Valve, the sealing ring is made of the same material as the valve body, and is driven by a pneumatic actuator. The applicable temperature depends on the material of the valve body. The nominal pressure is generally less than 0.6Mpa, which is suitable for industrial, metallurgical, environmental protection and other pipelines for ventilation and regulating flow.

Product Parameters



Work Pressure(MPa)


Drive Mode

Manual, worm gear drive, electric, pneumatic, hydraulic, electro-hydraulic linkage






Hot and cold air, gas, dust, flue gas, etc.


Valve Body

cast iron,304,316L,

Butterfly Board

cast iron,304,316L,

Valve Stem

45#steel,stainless steel

Valve Seat

rubber silicone rubber

Executive Standard

Design and Manufacture

Structure Length

Flange Size

Test Inspection

Pressure Temperture







Product Advantages

1. The design is novel, reasonable, unique in structure, light in weight, and quick to close.

2, The operating torque is small and convenient, labor-saving and light.

3, Using different materials to meet a variety of media and working conditions.

product Details

Application Case

The product can be used for computer control, single or centralized control, and can be widely applied to industrial automation control pipelines such as petroleum, food, chemical, oil refining, paper making, steel making, thermal power plant, shipbuilding, sewage treatment, waste gas recovery and so on.

Company Information

Zhengzhou Chaofan Control Valve Co., Ltd is a professional industrial valve, pneumatic actuator, grease pump, hydraulic pump station development, production, technical transformation, engineering design, installation and commissioning and provide after-sales service Technology Industrial Co., Ltd. The company’s main products are ball valves, globe valves, butterfly valves, check valves, gate valves, safety valves, actuators, and pumps and other related products.

D641W Pneumatic Control Ventilating Butterfly Valve Dimensions Ventilating Butterfly Valve D641W Valve Pneumatic Ventilating Valve

The company is located in the valve industrial park of Gaoshan Town, Fuyang City, Henan Province. It covers an area of more than 40 acres and has a construction area of more than 30 acres. With a master’s degree in professional valve quality engineers and a research and development team of technicians, the high-tech is integrated into the control process of the valve, which greatly improves the efficiency of valve use and saves a lot of control costs.

D641W Pneumatic Control Ventilating Butterfly Valve Dimensions Ventilating Butterfly Valve D641W Valve Pneumatic Ventilating Valve

In the past ten years, the company has been a pioneering business for more than ten years. It has been developing for more than ten years, and the company has been working hard for ten years. The employees of our company have worked hard in the tide of market economy, relying on sweat and Wisdom has won development and honor.

From the affirmation of customers to the recognition of peers, to the praise of all walks of life, inside and outside the industry, many honors have become the boosters of the company’s development, driving the Group to continue to move toward more brilliant glory.

D641W Pneumatic Control Ventilating Butterfly Valve Dimensions Ventilating Butterfly Valve D641W Valve Pneumatic Ventilating Valve
The company shapes the employees of our company with "humanity, scientific spirit, modern concept, harmonious development". At the same time, our company’s superior quality, high-quality after-sales service price, accurate delivery date, and win-win business philosophy have won praises from new and old customers.


In recent years, Zhengzhou Chaofan Control Valve Co., Ltd has continuously increased itsresearch efforts according to the needs of the international market, and has completed more than 100 key new products independently developed, obtained a number of product quality certifications, and obtained more than 100 domestic awards. Items, and product technology is ahead of the international level.

Contact Information
If the valve products you are interested in, please feel free to contact with us ,we will supply you high quality goods with competitive price.↓↓↓

Jenny Li
Sales Manager

Tel: 0086-371-8659 6857 Fax: 0086-371-8658 0361
Mobile/Wechat/Whatsapp: 0086-18530870410