Safe-Drive Retractor Sdr2-23; Safe-Drive Mounting; Figure 96 Safe-Drive Retractor - Vaisala PR-23 Series User Manual

Chapter 11 – Safe-Drive
11.3.4 Safe‑Drive retractor SDR2‑23
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 handwheel 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 96 Safe‑Drive retractor
11.4 Safe‑Drive mounting
A standard Safe‑Drive system delivery contains a Safe‑Drive sensor (PR‑23‑SD) with an
indicating transmitter DTR, a Safe‑Drive isolation valve to be welded onto the 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.
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