POSITIONERS
The electropneumatic positioner is a device whose main function is operate the control valve actuator in order to position the plug correctly in relation of the valve seat.
Normally the positioner is mounted on a pneumatic actuator whose function is to supply compressed air to the valve actuator in order to position the plug stem at the point corresponding to the signal received by the positioner.
The positioner compares the emitted signal with the valve stem position and supply the necessary pressure for actuator to adjust the plug to the desired position.
There are several types and different positioners, including linear and rotary positioners.
PPL/PPR PNEUMATIC POSITIONER
PPL for linear and PPR for 90º rotating actuator
Features:
- Easy maintenance
- Precise calibration with simple SPAN and ZERO adjustments
- Simple conversion to direct acting or reverse acting
- 1/2 split range available
- Rugged aluminum housing with corrosion-resistant coating
- Vibration resistant design
- Stainless steel gauges standard
- Restricted pilot valve orifice kit for small actuators included
Option:
- Position transmitter (4…20㎃ output signal)
- 2 x SPDT limit switch
- 2 x P&F proximity sensor NJ2-V3-N
- Visual dome indicator
- Special version for high temperature
PPL PNEUMATIC POSITIONER DATA SHEET (EN)
PPR PNEUMATIC POSITIONER DATA SHEET (EN)
EPL/EPR ANALOG POSITIONER
EPL for linear and EPR for 90º rotating actuator
Features:
- Easy maintenance
- Precise calibration with simple SPAN and ZERO adjustments
- Simple conversion to direct acting or reverse acting
- 1/2 split range available
- Rugged aluminum housing with corrosion-resistant coating
- Vibration resistant design
- Stainless steel gauges standard
- Restricted pilot valve orifice kit for small actuators included
- Certified for ATEX Eex md IIB T5 (05 ATEX 1076X) by NEMKO in conformance with EN 50014:1997, EN 50018:2000 and EN 50028:1987
- Certified for EMC (K1046/E04) in conformance with EN 61000-6-2:2001 and EN 61000-6-4:2001 by RWTUV
- Certified for Ex md IIB T6 (99-1075-Q1), Ex md IIC T6 (2000-1057-Q1),and Ex ia IIB T6 (2000-1056-Q1) by KOSHA
Option:
- Position transmitter (4…20㎃ output signal)
- 2 x SPDT limit switch
- 2 x P&F proximity sensor NJ2-V3-N
- Visual dome indicator
- Special version for high temperature
EPL ANALOG POSITIONER DATA SHEET (EN)
EPR ANALOG POSITIONER DATA SHEET (EN)
SS2 SMART POSITIONER
Smart performance with innovative and ever-strong coil module even under harsh working environments
Features:
- Easy and quick auto-calibration
- Detecting RA (reverse acting) or DA (direct acting) automatically regardless of wrong air connections
- Available to use for single or double acting without any special adjustments
- Compact design allowing to be installed on small actuators
- Providing error messages against performance failures
- Possible to test the actuator with any fixed signal under a test mode
- Programmable characteristic curve with 17 points
- Wide operating temperature range -40 ~ +80℃
- Improved control of high-friction globe and ball valves by eliminating an overshoot and a hunting
- Low air consumption
- Providing a mounting bracket to meet IEC 60534-6-1 for linear valves
- Supporting a NAMUR mounting pattern VDI/VDE 3845 (IEC 60534-6-2) and providing a multi-size mounting bracket for rotary valves
Option:
- Output position transmitter (4 – 20 mA)
- 2 x alarm limit or micro switch (SPDT)
- By-pass (Auto / Manual screw)
- Intrinsically safe Ex ia IIC T6/T5
- HART communication
- Profibus PA communication
- Fieldbus FF communication
SS2 SMART POSITIONER DATA SHEET (EN)
I/P CONVERTER IPC
Dynamic valve drive to convert 4~20㎃ current signal to pneumatic output pressure with state-of-the art piezoelectric technology
Features:
- Rugged aluminum die-cast housing
- Precise control performance and high dynamic response
- Simple and easy to set
- Low air consumption due to piezo electric microvalve
