Electric three eccentric butterfly valve - Shanghai Dongfeng Pump Valve Factory - 上海花千坊_上海龙凤花坛_夜上海最新论坛

Electric three eccentric butterfly valve

  • [Valve model]: D943H，D973H
  • [Diameter specification]: DN50～DN1200
  • [Structure]: Three eccentric hard seal (wafer type, flange)
  • [Valve body material]: Cast steel WCB, stainless steel 304, stainless steel 316
  • [Nominal pressure]: PN10、PN16、PN25、PN40
  • [Applicable temperature]: -40℃～450℃
  • [Application Scope]: Gas, water, gas, oil and corrosive medium
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  • Electric three eccentric butterfly valve

Product features

The electric three eccentric butterfly valve adopts a three-dimensional eccentric structure, which has the advantages of strong applicability, small torque force, less friction, good sealing performance, etc. It is mainly composed of flange or wafer type three eccentric butterfly valve and electric actuator. When the electric three eccentric butterfly valve is opened, the disc plate immediately separates the sealing surface of the valve seat, reducing the friction and interference with the sealing surface, and greatly improving the service life of the butterfly valve. Moreover, the disc plate and the sealing surface of the valve seat of the electric three eccentric butterfly valve are made of stainless steel, so that the anti-corrosion, temperature resistance, pressure resistance and wear resistance of the butterfly valve can be reliably guaranteed. It is a high-performance energy-saving electric butterfly valve.
 
 
Application of electric three eccentric butterfly valve:
 
The electric triple eccentric butterfly valve has the dual advantages of metal sealing and elastic sealing. It has excellent sealing performance both at low temperature and high temperature. It is also widely used in some fields of high temperature, high pressure, strong corrosion, etc., mainly used in petroleum, chemical industry, power, metallurgy, steel, paper making, medicine, food, textile, light industry and other industries.
Performance characteristics of electric three eccentric butterfly valve:
 
1. There are electric wafer type three eccentric butterfly valve and electric flange three eccentric butterfly valve, which can meet the requirements of pipelines with different connection modes.
2. The sealing performance is reliable, and the service life is long. The three-dimensional eccentric structure is adopted. There is very little friction between the butterfly valve and the valve body when it is opened and closed.
3. Different valve body materials and sealing rings can be used for different temperatures, pressure levels, corrosion resistance and other media;
4. Three eccentric structure, with the sealing function of closing more tightly, is flexible in operation, and is not affected by high and low media pressure.
5. The electric three eccentric butterfly valve can adjust the butterfly plate seal ring to close to the valve seat, restore the original sealing performance, and greatly improve the service life.
Outline structure of electric three eccentric butterfly valve:
Structure Diagram of Electric Flange Three Eccentric Butterfly Valve Structure Diagram of Electric Wafer Three Eccentric Butterfly Valve

technical parameter

Nominal diameter DN50～DN1200(mm)
Nominal pressure PN1.0、1.6、2.5、6.4MPa
Connection type Wafer type, flange type
Sealing form Three eccentric metal hard seal
supply voltage AC220V, AC380V (other customized DC24, etc.)
Action range 0～90°
Leakage 10-4 of Kv according to GB/T4213-92
body material Carbon steel, stainless steel 304, 316
Valve plate material Carbon steel, stainless steel 304, 316
Scope of application water , Steam Environmental protection treatment, corrosive media, etc
Applicable temperature Carbon steel: - 29 ℃~400 ℃ Stainless steel: - 40 ℃~450 ℃
Actuator Optional explosion-proof type, manual device can be equipped
control mode Common switch type (switch two position control), intelligent regulation (4~20mA analog signal control)
 
Structural principle of electric three eccentric butterfly valve:
 
1. Deviation from the pipe 2. Deviation from the center of the sealing surface 3. Inclined taper
On the basis of the double eccentric butterfly valve, form an angular eccentricity (angle) between the center of the sealing surface of the valve seat and the center line of the valve β）， During the opening process of the butterfly plate, the sealing surface of the butterfly plate immediately disengages from the sealing surface of the valve seat at the moment of opening, and only contacts and compresses the sealing surface of the valve seat at the moment of closing. This unique eccentric combination makes full use of the cam effect to completely eliminate the mechanical wear and scratch between the two sealing faces of the butterfly valve sealing pair when the valve is opened and closed, and eliminate the possibility of wear and leakage. Change the extrusion seal into torque seal. By adjusting the external driving torque, the sealing pressure can be adjusted, so that the sealing performance and service life of the triple eccentric structure sealing butterfly valve can be greatly improved.

Quotation process

Valve price:

Due to the different requirements of order quantity, packaging and delivery method, and the fluctuation of the price of valve raw materials, the price of valves will have a big difference immediately, so our products have not been marked with prices on the website, please understand.

If you select a valve product on this website and need to know the price or obtain relevant technical information, please contact us. We will reply immediately, and can select appropriate valve products for you according to your requirements, so that your procurement process is easy and pleasant.

Quotation process:

1. Please fax the name (or product model) of the valve you selected, the required order quantity, packaging requirements, delivery time, your company name, your company location and contact information to 021-36311208 Or telephone: 021-60547555。

2. After receiving the customer's purchase list, our company will provide the customer with various services such as valve quotation "price list", model selection "valve model" and technical guidance as soon as possible.

3. Specific matters: delivery date, special requirements, etc.

Ordering Instructions

1、 If the customer has special requirements for the product, the following instructions must be provided in the order contract:
(1) Valve body material (such as plastic, cast steel, stainless steel...)
(2) Connection type (such as flange, thread, clamp, etc.)
(3) Nominal diameter, pipe size
(4) Ambient temperature and pressure range
(5) Power supply voltage, air supply pressure
(6) Fluid properties (including nominal pressure, temperature, viscosity or acid-base)
2、 The company configures various driving devices according to the special requirements of customers. (electric control, pneumatic control)
3、 If the customer provides the determined valve type and model, the customer should correctly explain the meaning and requirements of the model (see the description of valve model preparation for details), and sign the contract on the condition that both the supplier and the buyer have the same understanding.
4、 After the customer tells the required valve model, specification, quantity, delivery time and place, the deposit of 20% of the total amount or the full payment for goods shall be remitted to our company's account in time, and the rest of the payment for goods shall be remitted before shipment, so as to arrange shipment in time.
5、 After the purchase is confirmed, our company will produce in strict accordance with the delivery date. The product processing cycle is generally 3 to 30 days, depending on the type and quantity of the order, and the specific delivery time is subject to the contract. In order to ensure that the goods you ordered are in place in time, please try your best to order earlier.
6、 Our company provides network distribution services according to the needs of customers, delivering goods to the branches (offices) of customers in major cities, and implementing door-to-door delivery services. After the products are accepted, our company will provide after-sales service.