Electric regulating ball 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 regulating ball valve

  • [Valve model]: VQ947F/H，VQ977F/H,Q941F/H
  • [Diameter specification]: DN15～DN300
  • [Structure]: O-shaped ball core, V-shaped ball core
  • [Valve body material]: Cast steel WCB, stainless steel 304, stainless steel 316
  • [Nominal pressure]: PN10、PN16、PN25、PN40、PN64
  • [Applicable temperature]: -40℃~-450℃
  • [Application Scope]: Water, steam, paper pulp, media containing fiber and granular media
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  • Electric regulating ball valve

Product features

The electric regulating ball valve is mainly used to adjust and control the pressure, flow, liquid level and other parameters of the pipeline medium. It is generally divided into electric O type regulating ball valve and electric V type regulating ball valve. The operating opening of the ball valve can be controlled by inputting 4-20mA signal and 220VAC power supply. The electric regulating ball valve can be soft sealed or hard sealed according to different operating conditions, of which the soft sealing rubber and polytetrafluoroethylene can be selected at normal temperature and pressure, and the metal hard seal can be selected at high-temperature and high-pressure occasions, which is suitable for various chemical, petrochemical, petroleum, power, liquefied gas, mechanical equipment supporting and other fields.


Electric V-type regulating ball valve Electric O-type regulating ball valve
 
Features of electric regulating ball valve:
 
The electric regulating ball valve is equipped with a built-in servo system, which can control the operation by inputting 4-20mA signal and 220VAC power supply without additional servo amplifier. The electric V-shaped regulating ball valve is equipped with a special V-shaped notch, which can not only cut off the fiber to prevent jamming, but also form a different V-shaped angle with the valve seat channel, realizing accurate adjustment of various parameters of pipeline media, It is suitable for various viscous media such as pulp or fiber, which can effectively ensure the flow of the pipeline and prevent the ball valve core from being stuck.
Structure diagram of electric regulating ball valve:


Performance index of electric regulating ball valve:
 
Control precision: 0.1% - 3.0% (adjustable through U4 parameter)
It can be connected to feedback signal of electric actuator: potentiometer 500 Ω - 10K Ω
External control signal (DC) can be received: 4-20mA (1-5V, 0-10V, switching value, etc. customized before delivery)
Input impedance: 250 Ω;
By modifying U1 parameters, you can set: ① DRTA/forward action, RVSA/reverse action mode ② "Interrupt" mode when the input signal is interrupted - OPEN, STOP, SHUT
Optional: ① SCR output (AC, 600V, 25A) ② Relay output (AC, 250V, 10A) ◆ Specify when ordering
Output actuator position signal: low drift output 4-20 mADC corresponding actuator is fully closed to fully open, signal is completely isolated from input (photoelectric isolation), output load ≤ 500 Ω
Ambient temperature: 0-70 ℃, humidity: 35-85%
With overtemperature protection function: when the temperature in the positioner shell is ≥ 70 ℃, the positioner stops the on-off control of the actuator, and the action range of the actuator corresponding to the input signal can be calibrated freely by pressing the key (generally calibrated as the fully closed and fully open positions of the electric actuator)

technical parameter

Nominal diameter DN15～DN300(mm)
Nominal pressure PN1.0、1.6、2.5、6.4MPa
Connection type Flange type, wafer type
Drive type Power drive (explosion-proof type optional, with manual device)
supply voltage AC110V, AC220V, AC380V (other customized DC24)
Valve core form O-shaped spherical valve core, V-shaped valve core structure
Leakage According to GB/T4213-92, less than the rated KV0.01%
Action time 8 ～ 30 (DN15-50) 36 ～ 60 (DN65-300) can be customized
body material Carbon steel, stainless steel 304, 316
Flow characteristics Approximate quick opening characteristics
Applicable temperature Soft seal - 40 ℃~- 180 ℃; Hard seal - 40 ℃~- 450 ℃
control mode Intelligent regulation type (input/output 4-20mA analog signal realizes regulation function)
Using Media Steam, paper pulp, sewage, solid suspension medium containing fiber particles and powdered medium

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.