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Self operated micro pressure control valve

  • [valve model]: ZZVP
  • [diameter specification]: DN15~DN100mm
  • [structural form]: Straight through single seat cast valve
  • [valve body material]: Cast steel (WCB), stainless steel (304, 316, 316L)
  • [nominal pressure]: PN10、PN16
  • [applicable temperature]: ≤150℃
  • [application scope]: Sealing chemicals in the liquid storage tank
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  •  Self operated micro pressure control valve

Product overview

Self operated micro pressure control valve adopts balanced single seat valve with stable pressure, high precision and good sealing performance, which is used to control micro differential pressure. In operation, the set value can be adjusted at will. It can be widely used in the nitrogen sealing system of various oil, chemical and liquid storage tanks. It can be widely used in the medium pressure not greater than 1.4mpa, the working temperature is not more than 120 ℃ (or 150 ℃), and the pressure regulating range is 0.14-7.2kpa.
 Structural diagram of self operated micro pressure regulating valve
Application of self operated micro pressure control valve:
 
Self operated micro pressure control valve is a kind of energy-saving product that does not need additional energy and uses the pressure of the regulated medium as the power source to automatically adjust the pressure. It is suitable for the micro pressure automatic regulation of various industrial furnace combustion system fuel gas, petroleum products in process or oil depot storage tank, protection gas and heat treatment protective gas.

technical parameter

Technical parameters and performance
Valve body DN 15 ~ 100 mm pn1.6 4.0Mpa WCB CF8 CF8M    
Valve cover Material: WCB CF8 CF8M pressure balance element: diaphragm + spring material: Spring 304    
Diaphragm NBR: - 40-120 ℃ fluororubber: - 20-150 ℃ ethylene propylene rubber: - 50-150 ℃    
 
Actuator (director)
Die box stamping with A3 steel plate    
Diaphragm butadiene rubber, fluororubber, ethylene propylene rubber    
Spring 304 wide core 304 seat 304 stem 304    
There are five adjustable pressure range, one specification and model of actuator    
Convenient disassembly and exchange, convenient adjustment    

Working principle of self operated micro pressure control valve:  
The valve adopts a large diaphragm actuator with large output force and stability. It is extremely sensitive to small changes in pressure and flow and has high control accuracy. The valve core adopts single seat flow opening (high in and low out) design. A balance diaphragm is installed at the valve cover (connecting with the valve body) to balance the pressure in front of the valve and eliminate the unbalanced force. The pressure at the back of the valve enters into the membrane actuator through the pressure taking pipe, and adjusts the spring with the membrane actuator In comparison, if the pressure can not reach the set value (adjust the spring of compression actuator), the pressure will increase after the valve, otherwise it will become smaller.
Flow coefficient of self operated micro pressure regulating valve:
Rated flow coefficient, noise measurement coefficient and allowable pressure difference
Nominal diameter DN(mm)  15  20  25  32  40  50  65  80  100 
Rated flow coefficient Kv  6.3  16  20  32  50  80  25 
Flow characteristics     Go ahead      
Nominal pressure PN    1.6Mpa       
Noise measurement coefficient Z value Spring   1Cr18Ni9       
Corrugated diaphragm Butadiene rubber Fluororubber   Ethylene propylene rubber
Working temperature -40-120℃  -20-150℃    -50-150℃

Quotation process

Valve price:

Due to the different requirements of order quantity, packaging and delivery mode, as well as the fluctuation of valve raw material price, the valve price will be greatly different. Therefore, the price of our products is not indicated on the website. Please understand.

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

Quotation process:

1. Please fax the name of your company, the name of your company and the place of delivery, the name of your company and the place of delivery 021-36311208 Or telephone number: 021-60547555。

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

3. Specific matters to be agreed: delivery time, special requirements, etc.

Ordering instructions

1、 If the customer has special requirements for the product, the following instructions shall be provided in the order contract:
(1) Valve body material (such as: plastic, cast steel, stainless steel...)
(2) Connection type (e.g. flange, thread, clamp...)
(3) Nominal diameter, pipe size
(4) Ambient temperature range
(5) Air pressure, supply voltage
(6) Fluid properties (including nominal pressure, temperature, viscosity or acidity or alkalinity)
2、 The company configures all kinds of 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 shall correctly explain the meaning and requirements of the valve model (for details, refer to the description of valve model preparation), and sign the contract under the condition that both parties understand and agree.
4、 After the customer tells the required valve model, specification, quantity and delivery time and place, 20% of the total amount of deposit or full payment shall be timely remitted to our company's account, and the rest shall be remitted before delivery, so as to arrange delivery in time.
5、 After confirming the purchase, our company carries on the production in strict accordance with the delivery date. According to the different types and quantities of orders, the product processing cycle is generally 3 to 30 days, 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 order as early as possible.
6、 According to the needs of customers, our company provides network distribution services, delivering goods to the branches (offices) in major cities, and providing door-to-door delivery service. After the product acceptance, our company will provide after-sales service.
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