PNEUMATIC POSITIONER

ELECTRO - PNEUMATIC POSITIONER
Compact design, rugged construction with rigid ISO 5211 Mounting
Vibration resistant because of its unique design and construction
Quick and ultra-precise response of the torque motor
Special polymer shaft bush with built in grease
reservoir to avoid shaft seizure due to formation of Aluminium oxide
Split range control can be easily adopted by change in few internal components
Simple to convert from direct acting to reverse acting or vice versa
The springs exhibit a stable force along with a highly balanced diaphragm
Low hysteresis due to lip seal instead of an O-ring which result in high gain and low friction
Various orifice size option available for different volume of actuator to prevent from hunting and also for controlling speed
Easy and precise calibration with Zero and Span adjustment
All the internal parts are hard anodized
Bright visual indicator on both flat and high dome
type positioners
Internal and external mounting of the position
transmitter and limit switch made possible and easy
No component is exposed, thus preventing from
corrosion in hazardous environment
IP66 protection
CE certified
PNEUMATIC POSITIONER - RTX1200
Special polyethylene low pressure diaphragm direct acting valve ensures quick and precise response to minor changes in signal pressure
Zero hysteresis increases overall efficiency
Normal operation in extreme environmental
conditions such as vibration
High life of diaphragm and zero maintenance
Compact design, rugged construction with as rigid
ISO 5211 mounting
Wide range of Zero and Span adjustment, for easy
and precise calibration
Stable, fast and accurate response with change in
supply pressure due to unique poppet and diaphragm valve design
All the internal parts are hard anodized
Split range control can be easily adopted by
change in few internal parts
Simple to convert from direct acting to reverse acting
or vice versa
Throughout there is a stable spring force along with a
highly balanced diaphragm
Low hysteresis due to lip seal instead of an O-ring
which result in high gain and low friction
Orifice option prevents from hunting and also for
controlling speed
Bright visual indicator on both flat and high dome
type positioners
Internal and external mounting of the position
transmitter and limit switch made possible and easy
Internal circuit of the positioner is highly corrosion
resistant as no part (metal plate) is exposed
IP66 protection
CE certified
RTX1200R WITH IP67 DXLW LIMITSWITCH
Aluminium Diecast, with powder coating, for superior corrosion resistance
Shatterproof Polycarbonate Dome
Easily settable colour coded cam
The locked serrated cams, ensures the secured settings
against any vibration
Complies to NAMUR Mounting standards
Possible Solenoid termination inside the switch box
The switch box confirms to the UL508, UL file no. E249752
Temperature range -20 °C to +80 °C
On request -40 °C to +80 °C
RTX1200R WITH Ex d DNLF LIMITSWITCH
Aluminium Diecast, with powder coating, for superior corrosion resistance
Shatterproof Polycarbonate Dome
Easily settable colour coded cam
The locked serrated cams, ensure the secured settings
against any vibration
Switch Box confirms to Ex d IIC, T4 Highest level of safety
Cable Entry M20, 1/2” NPT or 3/4” NPT
All fasteners in stainless steel
Water, Rain Proof to IP67
ATEX, certified by IEC Ex, BASEEFA, UK, Certification
no. Baseefa09, ATEX0126
UL Certified confirms to file no. UL1203 and UL508, File
no. 246615
Temperature range -20 °C to +80 °C
On request -40 °C to +80 °C
Cable entry
Dual cable entry Optional 4 cable entry
Optional Stainless Steel version is also available
CONTROL VALVE ACCESSORIES
Linear Cylinder with cam plate
Cam plate can be reversed at
site for fail safe open (Reverse Actuation)
Cam can be profiled to Equal, Square root, Linear Cylinder or equal percentage
BUTTERFLY VALVE WITH ACTUATOR
90º Rotation Positioner
Zero backlash due to ISO mounting
Characteristic of flow can be
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adjusted to need by ordering special cam
Double acting and Single acting both can be installed by ROTEX Positioners
BALL VALVE WITH ACTUATOR
Various ball valve like, ‘O’ ball, ‘V’ notch ball can be regulated by ROTEX
Speed of rotation can be adjusted by replacing different orifices
Calibration of valve can be matched precisely with opening and closing due to low hysteresis
3 WAY BALL VALVE WITH ACTUATOR
3 way valve can be used for continuous line diverting liquid back to tank. Provides unique constant pressure system
Special cam profiles available on ROTEX for this application
Speed can be controlled to avoid over travel