Versa-Matic 2 Bolted Metallic Hazardous Service Ball Valve (RE2 ) - Manual (Page 32)

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• Model RE2 Metallic Bolted
Step #1: Remove the Patch Cable
Twist the ribbed portion of the patch cable connector
in a counterclockwise direction, until it unthreads from
the connector. The cable can then be removed from the
intermediate.
Step #2: Remove the AirVantage from the Pump
Use a ½” socket and remove the four 5/16-18 x 5 1/2 cap
screws that hold the AirVantage to the pump. Remove the two
chamber bolts/nuts that are holding the right side bracket to be
able to remove the right bracket and AirVantage unit from the
pump. Be sure to support the weight of the AirVantage while
removing the last cap screw. After the AirVantage is removed
from the pump, set the unit down on the cover located on the
bottom. Inspect the o-ring between the poppet valve and the
adapter plate for damage.
Step #3: Access the Pilot Valve and Pressure Regulator
Use a 5mm hex-key wrench and loosen the four M6 x 35mm
socket head cap screws securing the top cover on. Lift the
cover off, exposing the pilot valve and pressure regulator.
There is a molded o-ring seal located on the underside of the
cap. Make sure the o-ring stays located within the groove.
Unplug the connector attached to it. Use a miniature 4-way
Phillips screwdriver and remove the two screws securing the
pilot valve to the plate. The valve and gasket can now be
removed and/or replaced.
Use slip-joint pliers to unscrew the regulator from the body by
turning it in a counterclockwise direction.
“AirVantage CAUTION” – Do not loosen or tighten the
regulator by turning the knurled portion of the unit. Place
the slip-joint pliers on the smooth area underneath the
knurled area of the regulator.
Reinstall the top cover and loosely reinstall the bolts. Turn the
assembly over and let it now rest on the top cover.
Step #4: Access the Power Generation Module
Use a 5mm hex-key wrench and remove the four M6 x 35mm
socket head cap screws securing the bottom cover on. Lift
the bottom cover off, exposing the power generation module.
There is a molded o-ring seal located on the underside of the
cap. Make sure the o-ring stays located within the groove.
Unplug the connector that connects the power generator to the
control board. Use a 4mm hex-key wrench to loosen the four
M5 x 25mm socket head cap screws. The power generation
module should now be loose. Carefully lift the power
generation module off the rest of the assembly, making sure
that the control board wire and connector slips through the hole
in the power generation case.
Step #5: Access the Control Module
Use a 4mm hex-key wrench and loosen the two M5 x 25mm
socket head cap screws securing the control module to the
poppet assembly. The control module should now be loose.
Carefully lift the control module off the poppet assembly,
making sure that the pilot valve connector wire slips through
the hole in the poppet valve assembly.
The Poppet valve assembly can now be replaced.
Step #6: Reinstallation
Install the control module on the poppet valve assembly. Make
sure to feed the pilot valve connector wire through the hole in
the poppet valve assembly. Install the two M5 x 25mm socket
head cap screws and tighten to 3.4 N-M.
Install the power generation module onto the control module.
Make sure to feed the control module wire through the hole in
the power generation case. Install the four M5 x 25mm socket
head cap screws and tighten to 6.8 N-M.
“AirVantage Caution” – Be sure to reattach the connector
from the power generator to the control board.
Install the bottom cover, making sure the o-ring seal is still in
the groove. Tighten the four M6 screws. The unit can now be
turned over and set on the bottom cover.
Install the pilot valve, tighten the screws snug with a jeweler's
screwdriver.
“AirVantage Caution” – Be sure to reattach the connector
to the pilot valve.
AirVantage Caution” – Be sure to reattach the patch cable
connector that connects the AirVantage module to the
intermediate.
If the pressure regulator needs to be replaced, use slip-joint
pliers to unscrew the regulator from the body by turning it in a
counterclockwise direction.
“AirVantage CAUTION” – Do not loosen or tighten the
regulator by turning the knurled portion of the unit. Place
the slip-joint pliers on the smooth area underneath the
knurled area of the regulator.
Step #4: Reinstallation
Reinstall the top cover, making sure the o-ring seal is still in the
groove. Tighten the four M6 screws.
Reinstall the AirVantage right bracket, chamber bolts/nuts and
four 5/16-18 x 5 1/2 cap screws, torque to 90 in-lbs.
“AirVantage Caution” – Be sure to reattach the patch
cable connector that connects the AirVantage module
to the intermediate.
Refer to Page 27 for Illustration.
Do not open when an
explosive atmosphere
may be present.
WARNING
S u b s t i t u t i o n o f
components may
impair intrinsic safety.
WARNING
Note: Ensure all mating faces are free from scores or damage prior to
re-assembly. Check each metallic face joint with a 0.003" feeler gage
to ensure all flange faces are fully closed after assembly. Failure to do
so may compromise the flameproof design of the assembly.
AirVantage Servicing - Poppet Valve