AP300 | Combination pH/Redox (ORP) sensors |
IM/AP300 Rev. J
5
1.3.3 AP304/5 Sensors
These sensors are hot tap, ball valve insertion types. They enable sensor maintenance or replacement without interrupting the
process.
An integral safety anti-blowout tip is incorporated into the sensor design preventing accidental sensor removal. Unlike chain
restraints, this safety-by-design is an integral part of the construction.
The sensor is inserted through a standard 1
1
/
4
in. full port or 1
1
/
2
in. ball valve. Ease of disassembly aids sensor replacement.
Connection to the ball valve is by compression fitting which is available in either hand-tight with 1
1
/
4
in. NPT threads or
wrench-tight with 1 in. NPT threads.
— AP304 models have no sensor guard (flush).
— AP305 models have a notched sensor guard.
Fig. 1.3 AP304 Ball Valve Dimensions
Dimensions in mm (in.)
Fig. 1.4 AP304/5 Compression Fitting Dimensions
1
1
/
4
in. Full Port Ball Valve
or 1
1
/
2
in. Ball Valve
Process Line / Vessel
Compression Fitting
97.8
(3.85)
66.7
(2.63)
Hand Tight
Wrench Tight
2
1
/
2
in. Dia.
1
3
/
4
in. Hex.
1
1
/
4
in. NPT
1
1
/
2
in. Hex.
1
3
/
8
in. Hex.
1 in. NPT
