Self operated pressure 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

Self operated pressure regulating valve

  • [Valve model]: ZZYP-16B、ZZYP-16K
  • [Diameter specification]: DN20～300mm
  • [Structure]: Through cast ball valve
  • [Valve body material]: Cast steel (WCB), stainless steel (304, 316, 316L)
  • [Nominal pressure]: PN1.6、2.5、4.0、6.4MPa
  • [Applicable temperature]: Standard type - 17~+450 ℃
  • [Application Scope]: Gas, liquid and steam media, pressure reduction and stabilization or pressure relief and stabilization
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  • Self operated pressure regulating valve

Product features

ZZYP self operated pressure regulating valve is mainly composed of control valve, actuator and a set pressure spring. It is applicable to non corrosive liquid, gas and steam. The pressure in front of the valve (when the pressure in front of the valve rises, the control valve opens) or behind the valve (when the pressure in front of the valve rises, the control valve opens) in the system pipeline. It is widely used in petroleum, chemical industry, electric power, metallurgy, medicine, food, textile, machinery, heating and ventilation. The action type includes pressure regulation behind the valve for pressure reduction (type B) and pressure regulation before the valve for pressure relief (type K).
Self operated pressure regulating valve (with condenser)
Self operated pressure regulating valve (with condenser)		 Self operated pressure regulating valve (standard)
Self operated pressure regulating valve (standard)
 
Features of self operated pressure regulating valve:
 
Compared with the manual control valve, the self operated pressure control valve has the advantage of automatic regulation; Compared with the electric control valve, it has the advantage that no external power is required. The self operated regulating valve relies on the pressure and temperature of the medium flowing through the valve as energy to drive the valve to work automatically, without external power supply and secondary instrument.
Function of self operated pressure regulating valve:
 
Self operated regulating valves use the feedback signals (pressure, differential pressure, temperature) from the valve output end to transmit to the actuator through the signal pipe to drive the valve disc to change the opening of the valve, so as to achieve the purpose of regulating pressure, flow and temperature., In the closed water circulation system (such as hot water heating system, air-conditioning chilled water system), the correct use of this valve can easily achieve the flow distribution of the system; It can realize the dynamic balance of the system; It can greatly simplify the commissioning of the system; It can stabilize the working state of the pump.
Structure diagram of self operated pressure regulating valve

technical parameter

valve body
Form Through cast ball valve
Nominal diameter 20、25、32、40、50、65、80、100、125、150、200、250、300mm 
Nominal pressure PN16、40、64bar 
Flange standard ANSI、JIS、DIN、GB、JB 
Materials Cast steel, stainless steel, etc
Upper valve cover Standard type: - 17-450 ℃
Valve cover type Bolt compression type
Filler V-type polytetrafluoroethylene filler, asbestos filler containing impregnated polytetracyanoethylene, asbestos textile filler, graphite filler
Connection type Flange
 
Inner valve assembly
Valve core type Single seat, sleeve type valve core
Flow characteristics Go

Flow coefficient of self operated pressure regulating valve:
Rated flow coefficient, rated travel, Zang pressure ratio
Nominal diameter DN (mm)   20  25  32  40  50  65  80  100  125  150  200  250  300 
Rated flow coefficient KvS   7  11  20  30  48  75  120  190  300  480  750  1100  1750 
Rated range (mm)   8  11  14  20  25  40  50  60  70 
Decompression ratio Max 10:1 
Minimum 10:8
  

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.