Understanding Pressure Reducing Valves (PRVs)
Entech Controls
Entech Controls
Entech Controls
Entech Controls
Entech Controls
Understanding Pressure Reducing Valves (PRVs)
Entech Controls
Entech Controls
Entech Controls
Entech Controls
Entech Controls
ECCENTRIC PLUG VALVE AUTOMATION
Size : ½” to 12”
Body Type : 2-way
Rating : ANSI 150-600 CLASS
End Connections : Integral & Separable Flange, Wafer Flange
Body Materials : WCB/WCC/WC9, CF8M/CF3M, Hastelloy, Monel & other alloy
Bonnet : Standard, Extended bonnet available
Gland Packing : PTFE, Grafoil, Fugitive Emission Vacuum
Trim : Segmented V-Notch Ball
Shaft : 17-4PH
Plug : SS304, SS316, Stelite-6, Alloy 20 and others
Characteristics : Linear/Equal Percentage
Seat Leakage : AS per FCI-70-2, Class IV, V & VI
Actuator Type : Rotary Diaphragm, Rotary Piston
Accessories : Pneumatic /Electro-Pneumatic/Smart Positioner, Air Set/Air Lock/
Volume Booster/ Solenoid Valve/Limit Switch/Position Transmitter
SEGMENTED/V-PORT BALL VALVE
Size : ½” to 12”
Body Type : 2-way
Rating : ANSI 150-600 CLASS
End Connections : Integral & Separable Flange, Wafer Flange
Body Materials : WCB/WCC/WC9, CF8M/CF3M, Hastelloy, Monel & other alloy
Bonnet : Standard, Extended bonnet available
Gland Packing : PTFE, Grafoil, Fugitive Emission Vacuum
Trim : Segmented V-Notch Ball
Shaft : 17-4PH
Trim Material : SS304, SS316, Stelite-6, Alloy 20 and others
Characteristics : Linear/Equal Percentage/Quick Opening
Seat Leakage : AS per FCI-70-2, Class IV, V & VI
Actuator Type : Rotary Diaphragm, Piston
Accessories : Pneumatic /Electro-Pneumatic/Smart Positioner, Air Set/Air Lock
Volume Booster/ Solenoid Valve/Limit Switch/Position Transmitter
BUTTERFLY VALVE AUTOMATION
Size : 2” to 24”
Body Type : One Piece Straight Through
End Connections : Wafer, Semi Lugged, Full Lugged, Flange End
Body Materials : WCB/WCC/WC9, CF8M/CF3M, Hastelloy, Monel & other alloy
Bonnet : Standard, Extended bonnet available
Gland Packing : PTFE, Grafoil
Disc : Double Eccentric
Gasket : PTFE,Spiral Grafoil
Characteristics : On-Off
Seat Leakage : AS per FCI-70-2, Class IV, V & VI
Actuator Type : Rack & Pinion, Rotary Diaphragm, Rotary Piston (Scotch Yoke)
Handwheel : MOR
Accessories : Pneumatic /Electro-Pneumatic/Smart Positioner, Air Set/Air Lock/
Volume Booster/ Solenoid Valve/Limit Switch/Position Transmitter
Double Acting Torque Range @ 5 bar: 400 to 80000 N-m
Tandem actuator has two pressure chambers hence the capacity is double
MULTI SPRING DIPHRAGM ACTUATOR: M SERIES TANDEM TYPE
Model: M174-T, M230-T, M320-T, M385-T, M700-T, M960-T, M1400-T, M1920-T
Travel: 10mm to 100mm
Reverse Acting Actuator: AFC (Air Fail Close) Actuator initial thrust will depend upon spring selection
For Fail close Initial Spring Thrust Range: 700N min. to 52738N max.
Direct Acting Actuator: AFO (Air Fail Open) Actuator air thrust enables closing at the valve
For Fail open Air net Thrust Range @4bar: 10240N min. to 113010N max.
Tandem actuator has two pressure chambers hence the capacity is double.
SINGLE DIAPHRAGM ACTUATOR :S SERIES
In general actuator sizing is @4 bar pneumatic pressure
Size : ½” to 16”
Body Type : 2-way,3-way
Rating : ANSI 150-2500 CLASS
End Connections : Flange End, Screwed, Butt Weld, Socket Weld
Face to Face : ISA S.75.03 upto 600 class/ ISA S.75.16 upto 900 class
Body Materials : WCB/WCC/WC9, CF8M/CF3M, Hastelloy, Monel & other alloy
Bonnet : Standard, Extended bonnet available
Gland Packing : PTFE, Grafoil, Fugitive Emission Vacuum
Trim : Top Guided Contoured
Trim Material : SS304, SS316, Stelite-6,Alloy 20 and others
Gasket : Spiral Grafoil
Characteristics : Linear/Equal Percentage/Quick Opening
Seat Leakage : AS per FCI-70-2, Class IV, V & VI
Actuator Type : Diaphragm, Piston, Electric
Actuator Action : Direct/Reverse/Double Acting
Handwheel : Top Mounted/ Side Mounted
Accessories : Pneumatic/Electro-Pneumatic/Smart Positioner, Air Set/Air Lock/
Volume Booster/ Solenoid Valve/Limit Switch/Position Transmitter
RACK & PINION: R&P SERIES-ROTARY PISTON SINGLE/DOUBLE ACTING
Rack & Pinion mostly use for automation and operation of quarter-turn valves like Butterfly, Ball and Plug valves applications
Model: SA/DA45, SA/DA 55, SA/DA65, SA/DA 75, SA/DA85, SA/DA100, SA/DA 115, SA/DA125,
SA/DA150, SA/DA175, SA/DA 200, SA/DA200, SA/DA 250
Travel: 90°
Spring Return Torque Range@ 4 bar: - 16 to 712 N-m
Double Acting Torque Range@ 4 bar: - 16 to 1296 N-m
R SERIES ROTARY DIAPHRAGM SINGLE ACTING
R Series diaphragm rotary actuator series which is recommended for Butterfly / V- Notch ball valve / other rotary control duty applications.
Model: R174, R260, R350, R550, R700, R960, R1400, R1920
Travel: 60°/90°
Spring Return Torque Range@ 6 bar: 28 to 6000 nm
RPA series has compact S-Y design. It has higher torque capacity than R series.
There is option of Integrated Hand-wheel.
Model: RPA125, RPA200, RPA250,RPA330,RPA400,RPA500,RPA600,RPA800
Travel:90°
Spring Return Torque Range @ 4bar: 73 to 35000 N-m
Double Acting Torque Range@ 5 bar: 200 to 60000 N-m