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Proportional back pressure valve EAHBF
Proportional back pressure valve EAHBF

Proportional back pressure valve EAHBF

Shanghai Pressure Regulating Industry Co., Ltd., integrated designer and manufacturer of electrical Proportional Back Pressure Valves, Stainless steel back pressure valve manufacturer, Strong technical capability, Ample spare parts, Fast repair, Fast response,Clean product, Degreasing, Easier ultrasonic cleaning!

The proportional solenoid back pressure valve adjusts back pressure according to the control signal, controlling the upstream fluid pressure. Pressure can be set anywhere within the adjusting range, continuous control, achieving continuous, stepless back pressure regulation, supports remote, program, computer and PLC control, for applications requiring remote and precise pressure control, an electro-pneumatic proportional back pressure valve is recommended.


  • Electrical proportional valve
    Electrical proportional valve

Design FeaturesDesign features

● Provides a pressure differential on both sides of the back pressure valve piping

● Prevents siphoning, Eliminates dosing variations caused by pressure fluctuations at the injection point

● Used together with pulse dampers to reduce water-hammer damage to the system

● Protects piping, elbows and fittings, reduces the impact of pressure fluctuations

● Delivers its full effect only when used with other line components such as pulse dampers

● Can be controlled remotely, can be controlled by computer, PLC control

● Sensitive operation, high precision

SpecificationsCharacteristic parameters

➣ control pressure control range: 0-2, 0-3, 0-4, 0-5, 0-6, 0-10mpa
Safety Test Pressure: 150% max. Rated pressure
Temperature Range: -40℃ to +100℃(above 100℃ consult technical)
Internal Leakage Rate: Without gas leakage
Cv value: 0.6, 1.2, 2, 2.6, 3.8, 5.1, 8, 11, 13, 17, 25, 36, 50, 75
➣ supply voltage: DC24V, DC12-15V
Input signal: DC4-20mA, DC0-20mA(aggregated), DC0-5V, DC0-10V
➣ output signal: DC1-5V, DC4-20mA (sink)
➣ linearity: Within ±1% F.S
➣ sensitivity: Within ±0.6% F.S
➣ accuracy: Within ±1% F.S

Product materialProduct material

Body: 316L, 304, C276, TA2, PVDF, stainless steel pTFE-lined
O-ring: NBR, VITON, EPDM, PTFE, RPTFE
Valve Seat: PTFE, PCTFE, PEEK, Vespel, 316L
Spring: 316L
Plug Stem: 316L

Body port layout drawingMatrix bitmap

Body port layout drawing


Ordering GuideORDERING INFORMATION
Series Material Nominal Diameter (DN) Connection RC/NPT Control pressure O-ring Pressure Gauges Body port layout
EAHBF proportional back pressure valve
L K G
L:316L
S:304
C:C276
T:TA2
PD:PVDF
CF: PTFE-lined
6   32
8   40
10   50
15   65
20   80
25   100
1/8"   1.25"
1/4"   1.5"
3/8"   2"
1/2"   2.5"
3/4"   3"
Flanged connection available on request
Code: F
K:0-2Mpa
I:0-3Mpa
H:0-4Mpa
G:0-5Mpa
Q:0-6Mpa
N:0-10Mpa
1, NBR
2, Viton
3, EPDM
4, PTFE
5, RPTFE
W: Without
G:Mpa
P:Psig/bar
A
B