Electric double seat regulating 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 double seat regulating valve

  • [Valve model]: ZDLN
  • [Diameter specification]: DN25～DN300mm
  • [Structure]: Straight through double seat cast ball valve
  • [Valve body material]: Cast steel (WCB), stainless steel (304, 316, 316L)
  • [Nominal pressure]: PN16、PN40、PN64
  • [Applicable temperature]: -17 ℃ - 450 ℃ (see product details for details)
  • [Application Scope]: Gas, liquid, steam, industrial kiln, food machinery, etc
Consult the manufacturer Online Message
  • Electric double seat regulating valve

Product features

ZDLN electronic double seat electric control valve realizes pressure compensation and valve shutoff by using two sealing lines on the valve core barrel to seal at the same time. The valve seat has two valve core balls, the upper and lower valve cores. The thrust of the fluid acting on the upper and lower valve cores is opposite in direction but close in size. The unbalanced force is very small, the allowable pressure difference is large, and the rated flow coefficient is larger than that of the electric single seat regulating valve of the same caliber. However, the leakage of this valve is also larger than that of the single seat valve. It is suitable for clean media occasions where the leakage is not strictly required and the pressure difference between the front and back of the valve is large.
Structure diagram of electric double seat regulating valve

Principle of electronic double seat electric control valve:
The electronic electric double seat regulating valve is composed of 3810L series (or PSL series) straight travel electronic electric actuator and straight through double seat regulating valve body. It contains the feeding function, receives the unified 4-20mA or 1-5V · DC standard signal, converts the current signal into the corresponding linear displacement, automatically controls the opening of the regulating valve, and achieves the pressure, flow, temperature Continuous adjustment of process parameters such as liquid level.
Features of electronic double seat electric control valve:
The electronic electric double seat regulating valve has the characteristics of compact structure, light weight, sensitive action, large valve capacity, accurate flow characteristics, convenient disassembly and assembly, etc. It is widely used to precisely control the medium such as gas, liquid, steam, etc., especially in the situation where the pressure difference is large and the leakage is not strictly required for clean media.
Size of electronic double seat electric regulating valve:
 
Overall dimensions and weight Unit: mm
Nominal diameter twenty-five thirty-two forty fifty sixty-five eighty one hundred one hundred and twenty-five one hundred and fifty two hundred
L PN16/40 one hundred and eighty-five two hundred two hundred and twenty two hundred and fifty two hundred and seventy-five three hundred three hundred and fifty four hundred and ten four hundred and fifty five hundred and fifty
PN64 two hundred two hundred and ten two hundred and thirty-five two hundred and sixty-five two hundred and ninety-five three hundred and twenty three hundred and seventy four hundred and forty four hundred and seventy-five five hundred and seventy
D   two hundred and fifty-five two hundred and fifty-five two hundred and fifty-five two hundred and fifty-five two hundred and fifty-five two hundred and fifty-five two hundred and fifty-five three hundred and ten three hundred and ten three hundred and ten
R   one hundred and seventy-seven one hundred and seventy-seven one hundred and seventy-seven one hundred and seventy-seven one hundred and seventy-seven one hundred and seventy-seven one hundred and seventy-seven two hundred and twenty-six two hundred and twenty-six two hundred and twenty-six
H1 PN16/40 one hundred and fifty-five one hundred and seventy-five one hundred and eighty two hundred two hundred and thirty-five two hundred and fifty two hundred and sixty three hundred and thirty three hundred and fifty four hundred and twenty
PN64 one hundred and sixty-five one hundred and eighty-five one hundred and eighty-five two hundred and five two hundred and forty-five two hundred and fifty-five two hundred and seventy three hundred and thirty-five three hundred and sixty-five four hundred and thirty
H3 PN16/40 one hundred and seventy-one one hundred and ninety-five two hundred two hundred and twenty two hundred and sixty-two two hundred and seventy-seven two hundred and eighty-seven three hundred and fifty-seven three hundred and seventy-seven four hundred and forty-seven
PN64 one hundred and eighty-one two hundred and five two hundred and five two hundred and twenty-five two hundred and seventy-two two hundred and eighty-two two hundred and ninety-seven three hundred and sixty-two three hundred and ninety-two four hundred and fifty-seven
H2   three hundred and seventy-three four hundred and ninety-five four hundred and ninety-five four hundred and ninety-five seven hundred seven hundred seven hundred seven hundred and twenty-five seven hundred and twenty-five seven hundred and twenty-five
H4   four hundred and fifty-nine four hundred and fifty-nine four hundred and fifty-nine four hundred and fifty-nine five hundred and twenty five hundred and twenty five hundred and twenty five hundred and seventy five hundred and seventy five hundred and seventy
H5 PN64 one hundred and twenty one hundred and twenty one hundred and forty one hundred and forty-five one hundred and ninety two hundred and ten two hundred and twenty two hundred and seventy two hundred and eighty three hundred and twenty
weight
(KG)		 PN16/40 sixteen nineteen twenty-two twenty-three thirty-nine fifty fifty-nine eighty eighty-seven one hundred and fifteen
PN64 twenty-one twenty-four thirty-one thirty-three forty-nine seventy-five ninety-two one hundred and twenty-nine one hundred and thirty-seven one hundred and seventy

technical parameter

valve body
Form Through cast ball valve    
Nominal diameter 25. 32. 40. 50. 65. 80. 100. 125. 150. 200. 250. 300mm    
Nominal pressure PN16、40、64bar    
Flange standard JB/T79.1-94, 79.2-94, etc    
Materials Cast steel (ZG230450), stainless steel (ZGICr18Ni9Ti, ZGICr18Ni12M02Ti), etc    
Upper valve cover Standard type: - 17-230 ℃ Heat dissipation type: 230-450 ℃ Low temperature type: - 60-196 ℃ Bellows sealing type: - 40-350 ℃    
Valve cover type Bolt compression type    
Filler V-type polytetrafluoroethylene filler, asbestos filler containing impregnated polytetracyanoethylene, asbestos textile filler, graphite filler    
 
Inner valve assembly
Valve core type Straight through double seat cast iron ball valve    
Flow characteristics Equal percentage characteristic and linear characteristic    
Materials Stainless steel, stainless steel stackelite alloy, titanium and corrosion-resistant platform metal, 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.