Electric welding stop 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 welding stop valve

  • [Valve model]: J961H，J961W，J961Y
  • [Diameter specification]: DN10～DN100
  • [Structure]: Straight through
  • [Valve body material]: Cast steel, stainless steel, chrome molybdenum steel, chrome molybdenum vanadium steel
  • [Nominal pressure]: PN160、PN250、PN320
  • [Applicable temperature]: -29℃-550℃
  • [Application Scope]: Water, oil, steam, strong oxidizing medium, etc
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  • Electric welding stop valve

Product features

The electric welding stop valve J961H/Y (power station stop valve) is connected with the pipeline in a welded structure, which is suitable for water and steam oil pipelines. It is characterized by high temperature resistance and high pressure resistance. It is mainly composed of the welding stop valve and the electric actuator. Remote switching operation can be realized by accepting a voltage of 380VAC. The electric welding stop valve is applicable to the pipelines of various systems in petroleum, chemical, hydraulic and thermal power plants with the nominal pressure of PN20 ～ 32MPa, P54/100V-P57/170V, and the working temperature of ≤ 540 ℃ (where the working temperature of P57/170V is 570 ℃), and can be used as a switch to cut off or connect the pipeline medium. The sealing surface is not easy to wear and scratch, with good sealing performance, long service life, compact structure, good opening and closing performance, small height and convenient maintenance.
 
Performance advantages of electric welding stop valve:
 
1. The middle chamber of the valve adopts the pressure self tightening sealing structure, and the sealing performance is better. Both ends of the branch pipe are welded structures. The welding groove can be matched according to standards or user requirements.
2. The sealing surface of valve disc and valve seat is made of Stellite cobalt base hard alloy by surfacing welding, which is wear-resistant, high temperature resistant, good scratch resistance and long service life.
3. The valve stem of high-pressure welded power station stop valve has good corrosion resistance and scratch resistance after quenching and tempering and surface nitriding treatment.
4. The stuffing box depth of J961H/Y electric stop valve bonnet is reasonable, the packing is added with corrosion inhibitor, and the sealing is reliable.
Design standard of electric welding stop valve:
 
Design and manufacture: JB/T3595 DL/T531
Structure length: JB2766 GB/T15188.1
Pressure temperature: JB/T3595
Test inspection: JB/T9092
Structure diagram of electric welding stop valve
Structure diagram of electric welding stop valve
Structural principle of electric welding stop valve:
 
Once the electric butt welding stop valve is in the open state, there is no contact between its seat and the sealing surface of the valve disc, so the mechanical wear of its sealing surface is small. Because the seat and disc of most stop valves are relatively easy to repair, or the whole valve does not need to be removed from the pipeline when replacing the sealing elements, Therefore, it is very suitable for the occasion where valves and pipelines are welded together. The flow direction of the medium has changed when passing through this type of valve, so the flow resistance of the stop valve in the power station is higher than that of other valves.

technical parameter

Nominal diameter DN10～DN100
Nominal pressure 16.0 25.0 32.0 （Mpa）
Connection mode Butt welding, socket welding
control mode Electric control
body material Cast steel, stainless steel, chrome molybdenum steel, chrome molybdenum vanadium steel
filler Reinforced flexible graphite
temperature range -29℃-550℃
Applicable media Water, oil, steam, strong oxidizing medium, etc

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.