Change The Compressor, Tube Nut, And Snap Ring - Emerson Advantage 2.1 Installation, Operation And Maintenance Manual

If the valve is a ... Then ...
Pure-Flo di-
aphragm valve
3. Prior to pressurization (with the valve slightly open), tighten the bonnet fasteners.
For more information, see
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.

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.
Advantage 2.1 Actuator Installation and Operation Manual
Designed and Manufactured by ITT
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.
Tighten the bonnet fasteners
Installation
(page 10).
9