If the valve is
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Dia-Flo dia-
phragm valve
For horizontal piping systems to be drained through the valve, install the valve spin-
dle between 0º and 30º above horizontal. For vertical piping systems, no specific
orientation is required.
Pure-Flo dia-
phragm valve
Install with the raised hash marks (castings) or small machined dots (forgings) on
the valve body at the 12 o'clock position to achieve the optimum drain angle.
3.
Prior to pressurization (with the valve slightly open), tighten the bonnet fasteners.
For more information, see
4.5 Tighten the bonnet fasteners on page 10
4.
Connect the air line.
Connection size is 1/8" NPT.
NOTICE:
Air line connections should be made with care so as not to damage the actuator covers.
5.
Cycle the valve two to three times to verify smooth operation.
4.3 Change the compressor, tube nut, and snap ring
To switch diaphragm types between EPDM and PTFE, the tube nut must be changed. Follow the steps
below before you switch diaphragm types.
1.
Insert a screw driver or similar thin blade between compressor and bonnet flange.
Figure 8: Remove the compressor
2.
Apply light pressure to back side of compressor finger.
3.
Remove compressor and snap ring assembly.
4.3 Change the compressor, tube nut, and snap ring
Advantage® 2.1 Actuator Installation and Operation Manual
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