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ATEX Retractor System TANKO-RT/-RTS
3 Design and Function
Translation - Operating/installation instructions 2020/01
37/121
Technical Data for Pneumatic Side
Designation
Retractor system TANKO-RT/RTS
Actuator:
Pneumatic (compressed air)
Drive medium:
Dry, oil-free compressed air (if necessary, install corresponding
upstream maintenance unit)
Operating pressure
–
Range
–
Recommended
min. 5 bar (72.5 psi g) – max. 6 bar (87 psi g)
6 bar (87 psi g)
Connection:
–
Power cylinder
–
Locking cylinder
Internal thread G 1/8 ISO 228-1
throttle check valve for hose external Ø = 6 mm
Internal thread M5 metric ISO thread
Angled connector for hose external Ø = 6 mm
Table 3.3-2: Operating Parameter, Pneumatic Side
Power Supply, Limit Switch
The power supply for the 5 limit switches (on the power and locking cylinder) is provided by approved
switch amplifiers (8.2 V).
The entire system for monitoring the position of the retracted or “retracted” power cylinder (two limit
switches, G1 and G2) must comply with at least the ignition protection system b2, EN ISO 80079-37 in
the currently applicable version.
The entire system for monitoring the position of the locking cylinder (limit switches J and K) must
comply with at least the ignition protection system b1, EN ISO 80079-37 in the currently applicable
version.
Recommendation:
Switch amplifier (2-channel) with ATEX-approval for Zone 1 of Hans Turck GmbH & Co. KG.
More detailed data can be found in the external data sheets or the manufacturer's operating
instructions.
Power Supply and Evaluation of Resistance Thermometer
The power supply for the resistance thermometer (on the power cylinder) is performed via an approved
supply isolator.
The entire temperature monitoring system near the limit switch “F” must comply with the ignition
protection system b1, EN ISO 80079-37 in the currently applicable version.
Recommendation:
Intrinsically safe supply isolator type IS Barrier, transmitter T15; T32xS, T53 with appropriate
approval from WIKA Alexander Wiegand SE & Co. KG.
More detailed data can be found in the external data sheets or the manufacturer's operating
instructions.