Self-actuated (pre-valve) pressure regulating valve is a kind of energy saving product which can adjust the pressure automatically without foreign energy. The product integrates the functions of measurement, execution and control, has the features of pressure balance, sensitive action, stable performance, reliable operation, low voice and free from maintenance. It is a typical standard modular design that multiple combination control can be carried out through component. This product can be widely used in petroleum, chemical industry, metallurgy, light industry and other industrial sectors and urban heating, heating system of corrosive gas, liquid or not greater than 350 ℃, the highest temperature steam valve top pressure control device of the medium.
Main technical parameters
A. the valve body
Type: straight through one - seat cast ball valve
Nominal diameter: DN15 ~ 250mm
Nominal pressure: PN1.6, 2.5, 4.0MPa (ANSI 150, 300Lb)
Connection type: flange connection RF type
Flange standard: DIN2501 standard (other standards can be provided by users)
Material: WCB CF8 CF8M
A. the cover
The internal pressure balancing mechanism can be assembled together by connecting the adjusting mechanism and the executing mechanism, which is very convenient to disassemble and assemble
Material: WCB CF8 CF8M
A. trims
Balance mode: stainless steel corrugated tube (< DN125), special film box (< DN150)
Disc material: hard seal 304, 316/ soft seal embedded FKM
Seat material: CF8 CF8M
Stem material: 316
Flow characteristics: approximate linear
Executive mechanism
Film box: made of high quality steel plate
Elastic element: adopts high-quality FKM material
Setting springs and actuators: high quality 60Si2Mn automatic rolling system, seven pressure setting ranges, four types of actuators
Pulse tube: 10 x 1 stainless steel tube, connection thread r1/4"
Separation tank: welded with quality steel plate, with a volume of 1 liter (1 l) and 3 liters (3 l).
Special support
A. An indication device with a leaky pipe joint or double diaphragm rupture
B. Use no lube or grease for work environments with special cleanliness requirements
C. When using a gas or steam medium, use a throat-reducing valve if very low noise is required
D. PTFE film may be provided for special corrosion protection requirements
Technical performance parameters
Main technical parameters
A. the valve body
Type: straight through one - seat cast ball valve
Nominal diameter: DN15 ~ 250mm
Nominal pressure: PN1.6, 2.5, 4.0MPa (ANSI 150, 300Lb)
Connection type: flange connection RF type
Flange standard: DIN2501 standard (other standards can be provided by users)
Material: WCB CF8 CF8M
A. the cover
The internal pressure balancing mechanism can be assembled together by connecting the adjusting mechanism and the executing mechanism, which is very convenient to disassemble and assemble
Material: WCB CF8 CF8M
A. trims
Balance mode: stainless steel corrugated tube (< DN125), special film box (< DN150)
Disc material: hard seal 304, 316/ soft seal embedded FKM
Seat material: CF8 CF8M
Stem material: 316
Flow characteristics: approximate linear
Executive mechanism
Film box: made of high quality steel plate
Elastic element: adopts high-quality FKM material
Setting springs and actuators: high quality 60Si2Mn automatic rolling system, seven pressure setting ranges, four types of actuators
Pulse tube: 10 x 1 stainless steel tube, connection thread r1/4"
Separation tank: welded with quality steel plate, with a volume of 1 liter (1 l) and 3 liters (3 l).
Special support
A. An indication device with a leaky pipe joint or double diaphragm rupture
B. Use no lube or grease for work environments with special cleanliness requirements
C. When using a gas or steam medium, use a throat-reducing valve if very low noise is required
D. PTFE film may be provided for special corrosion protection requirements
