Safe-Drive™ Retractor; Mounting - Vaisala K-PATENTS PR-23 Series Instruction Manual

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PR-23 instruction manual
11.3.4 Safe-Drive™ Retractor
The Safe-Drive™ Retractor consists of Inner casing and Outer casing. The Inner casing
is attached to the sensor flange with bayonet mounting. The Outer casing is attached
to the isolation valve body with bayonet mounting. When the hand-wheel is turned,
the Inner casing moves inside the Outer casing along the screw thread.
Hand-wheel
Carrying handle
Outer casing
Locking latch
Inner casing
Screw thread
Locking latch
Bayonet mounting
Spill port
Safety bracket
Bayonet mounting
Figure 11.2 The Safe-Drive™ Retractor

11.4 Mounting

A standard Safe-Drive™ system delivery contains a Safe-Drive™ Sensor (PR-23-SD)
with a Indicating transmitter DTR, a Safe-Drive™ Isolation valve to be welded onto cus-
tomer's pipe and a Safe-Drive™ Retractor for sensor insertion and removal. A welding
guide sticker is also provided for accurate cutting and welding.
By special order the Safe-Drive™ Isolation valve can also be welded to a suitable length
of pipe at the Vaisala factory to be part of the piping on site.
Warning! Hard-scale removal in green liquor handling systems: Make sure that
the sensor and wash nozzle materials are suitable for the hard-scale removal chemi-
cals.