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Use protective measures for hard-sealed butterfly valves.

January 13, 2023 butterflyprice

1. The bolt welded on the valve disc should not be too long, otherwise it will be due to the […]

Butterfly valve static pressure life test method.

January 13, 2023January 13, 2023 butterflyprice

Test method: 1) Check the sealing operation mode of the butterfly valve to confirm whether the sealing is closed by […]

Code for static pressure life test of butterfly valves.

January 6, 2023 butterflyprice

Terms and definitions: (1)  Static pressure life test. Under laboratory conditions, the valve under the action of medium pressure, from […]

Butterfly valve piping installation instructions.

January 6, 2023 butterflyprice

1. Weld the flange to the pipe and cool it to the ambient temperature before installing the valve on the […]

Introduction of seats for the butterfly valves.

December 30, 2022 butterflyprice

Normally for the technology process of the valve seat for soft seated type butterfly valves, it can be classified into […]

Inflatable butterfly valve

December 30, 2022 butterflyprice

Inflatable butterfly valve Basic information: Body: ASTM A536 65-45-12, WCB, CF8M Disc: ASTM A536 65-45-12 Nylon coated, CF8, CF8M, 2507, […]

Problems existing in the use of hard seal butterfly valve.

December 24, 2022 butterflyprice

First, Because the multi-layer soft and hard overlapping sealing ring is fixed on the valve plate. When the valve plate […]

High performance butterfly valve

Characteristics and structure of metal seal butterfly valve.

December 24, 2022 butterflyprice

First, the characteristics of metal hard seal butterfly valve: 1, metal hard seal butterfly valve with three eccentric sealing structure, […]

Electric butterfly valve application characteristics and installation precautions.

December 16, 2022 butterflyprice

Electric butterfly valve belongs to a variety of electric regulating valve and electric valve, widely used in environmental protection, pharmaceutical, […]

Triple Offset Butterfly Valves

The difference between pneumatic fluorine lined butterfly valve and pneumatic metal seal butterfly valve.

December 16, 2022 butterflyprice

Pneumatic butterfly valve is a relatively large use of industrial pipeline in the important execution unit, through the compressed air […]

Butterfly valve installation direction and maintenance precautions.

December 9, 2022 butterflyprice

Butterfly valve installation direction: 1. The butterfly valve disc is installed in the diameter direction of the pipeline. 2. When […]

Selection and use of metal seal butterfly valve and ventilated butterfly valve.

December 9, 2022 butterflyprice

Metal seal butterfly valve: Adopt metal sealing surface and other rigid materials to achieve zero leakage requirements, which can be […]

Processing method for sealing surface of triple eccentric metal seal butterfly valves.

December 2, 2022 butterflyprice

Processing technology: From the three eccentric metal hard seal butterfly valve structure characteristics analysis. Butterfly plate assembly sealing ring for […]

Advantages of new metal seal butterfly valve.

December 2, 2022 butterflyprice

Hard seal butterfly valve adopts a structure that the butterfly plate can move along the axial diameter of the valve. […]

Butterfly valve structure and flow characteristics.

November 25, 2022 butterflyprice

Butterfly valve is mainly composed of valve body, butterfly plate, stem, sealing ring and transmission device. (1) Valve body The […]

Butterfly valve common faults and elimination methods.

November 25, 2022 butterflyprice

Butterfly valve common faults and elimination methods 1. Before installation, please confirm whether the product performance and medium flow direction […]

INSPECTION AND TEST PLAN FOR THE PNEUMATIC BUTTERFLY VALVES.

November 17, 2022 butterflyprice

1. Valves test: 1.1 Material test: 1) The material will tested according to the standard by the inspection of the […]

Discussion on the instability and vibration of pneumatic control valves.

November 17, 2022 butterflyprice

The action of pneumatic actuator control valve is unstable: 1. Unstable air source pressure. 1) Compressor capacity is too small; […]

Inflatable seat pneumatic butterfly valve

Discussion on the problems of non-action of pneumatic control valves.

November 11, 2022 butterflyprice

Pneumatic control valve does not operate: 1. No signal, no air source. 1) The air source is not open; 2) […]

Introduction of electric actuators.

November 11, 2022 butterflyprice

Electric actuators are mainly use in power plants or nuclear power plants. Because a smooth, stable and slow process is […]

Causes and solutions of vibration of pneumatic actuators.

November 4, 2022 butterflyprice

Pneumatic actuators are a kind of classification in actuators. From the perspective of technical performance, the advantages of pneumatic actuators […]

Inspection standards and methods for pneumatic actuators.

November 4, 2022 butterflyprice

1. Fix the pneumatic actuator on the test table and connect the air source, control air source and displacement detection […]

Preparation of pneumatic actuators before inspection.

November 3, 2022 butterflyprice

Pneumatic actuators also known as pneumatic head pneumatic head, is driven by air pressure to open and close or adjust […]

How to solve the problem of slow response of AT pneumatic actuators?

November 3, 2022 butterflyprice

The use of AT pneumatic actuators sometimes shows a slow reaction, which undoubtedly greatly affects the working efficiency of AT […]

Classification of pneumatic actuators.

October 22, 2022 butterflyprice

Pneumatic actuators are driven by air pressure to open and close or adjust the valve actuators, commonly known as pneumatic […]

SS flange butterfly valve

Function of valve positioner and classification.

October 22, 2022 butterflyprice

Valve positioner is the main accessory of pneumatic actuator control valve. It takes stem displacement signal as input feedback measurement […]

Inflatable seat pneumatic butterfly valve

The main embodiment of diversification and energy-saving development of pneumatic actuators.

October 15, 2022 butterflyprice

Actuators have pneumatic and electric two forms, usually we understand more about pneumatic actuators. But pneumatic actuators from the technical […]

Working principle of pneumatic valve.

October 15, 2022 butterflyprice

Pneumatic valves in regulating valve are characteristic of the valve. Because of the pneumatic valve is connect to the pneumatic […]

How to solve the problem of pneumatic valve opening and closing jitter?

September 30, 2022 butterflyprice

The more and more widely used pneumatic valve is a good proof of this point, with the widespread use of […]

Pneumatic actuators have three major self-protection functions.

September 30, 2022 butterflyprice

Pneumatic actuators as an important equipment, in many industries have a good use. It can use for all kinds of […]

How to improve the switching speed of AT pneumatic actuators?

September 23, 2022 butterflyprice

July 16, 2020 butterfly valve As the speed of AT pneumatic actuators increases, the impact of actuators and valves in the […]

Advantages and disadvantages of pneumatic components.

September 23, 2022 butterflyprice

Advantages: 1. Pneumatic device is simple in structure, light in weight, simple in installation and maintenance. The medium is air, […]

Common faults in hydraulic system.

September 17, 2022 butterflyprice

1. Pressure loss. Because liquids are viscous and have friction when flowing in pipelines, they must lose some energy in […]

Application of hydraulic control valve.

September 17, 2022 butterflyprice

The hydraulic control slow closing ball valve features small flow resistance coefficient, high degree of automation, complete functions, stable and […]

The characteristics of explosion-proof electric actuator performance.

September 9, 2022 butterflyprice

1. Shell. The shell is made of hard aluminum alloy, anodized and polyester powder coated, with strong corrosion resistance, protection […]

Notes for valve test pressure.

September 9, 2022 butterflyprice

(1) Generally, strength test is not require for valves. But strength test shall conduct for valve body and bonnet after […]

Operating requirements for electric actuators.

September 2, 2022 butterflyprice

1. Equipment environmental requirements. This PL series valve electric actuators can be used indoors or outdoors.This PL series valve electric […]

Notes for installation of electric actuator and valve.

September 2, 2022 butterflyprice

1. Manually turn the valve to check that there is no abnormal situation and make the valve in the full […]

Application field of electric actuators.

August 26, 2022 butterflyprice

Electric actuators are mainly used in the following three fields. 1. Power plant. Typical applications are: ① Application in thermal […]

Important parameters of electric actuators.

August 26, 2022 butterflyprice

1. Stroke of electric actuator. This parameter is also an important parameter. For the angle stroke electric actuator, the stroke […]

The structural form of the electric actuators.

August 19, 2022 butterflyprice

According to the movement mode of the controlled object, the electric actuator can divide into the following structural types: straight […]

How to protect the valve from corrosion?

August 19, 2022 butterflyprice

Corrosion is one of the important elements that cause valve damage. Therefore, in valve protection, valve anti-corrosion is an important […]

Characteristics and selection of various valve driving devices.

August 11, 2022 butterflyprice

Valve drive mode: According to the movement mode of the driving mechanism, the valve driving device is divided into two […]

How to operate valves correctly?

August 11, 2022 butterflyprice

For valves, not only installation and regular maintenance, but also operation. Generally, the opening and closing of the valve shall […]

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>    High performance butterfly valve
>    High performance lug butterfly valve
>    Lined butterfly valve
>    Lined lug butterfly valve
>    Triple Offset Butterfly Valves
>    Pneumatic butterfly valve
>    Electric butterfly valve

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Butterfly valve knowledge

  • Use protective measures for hard-sealed butterfly valves.
  • Butterfly valve static pressure life test method.
  • Code for static pressure life test of butterfly valves.
  • Butterfly valve piping installation instructions.

About Us

Sales office: Room 1505 of Tianna Shanghui, No.6 Jianyun Road,
Pudong, Shanghai,China.
Factory: No.6 Baimashan Road, Yijiang Dist. Wuhu City, Anhui Province, China

Tel: 0086-553-3819777 3801388
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Email:sales@butterflyvalveprice.com
Website:www.butterflyvalveprice.com

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    Products

    >    Wafer butterfly valve
    >    Flange butterfly valve
    >    Lug butterfly valve
    >    High performance butterfly valve
    >    Lined butterfly valve
    >    Lined lug butterfly valve
    >    Triple Offset Butterfly Valves
    >    Pneumatic butterfly valve
    >    Electric butterfly valve

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