SENTINEL MEDIA METERING VALVE
Page 2
Sentinel valve installed on a blast machine
using pressure-release remote controls with ACS switch mounted on the control handle
Figure 1
Sentinel Valve
Twinline Hose
RLX Control Handle w/
ACS Switch
Twinline Hose
Single-line Hose
ACS Switch
2.0
INSTALLATION
Failure to observe the following procedures
before performing service on a blast machine
(pressure vessel) could cause serious injury or
death from the sudden release of trapped
compressed air.
•
Depressurize the blast machine.
•
Lock out and tag out the compressed air
supply.
•
Bleed the air supply line to the blast
machine.
2.1
Remove abrasive from the blast machine,
depressurize the machine, and disconnect the
compressed air supply line.
2.2
Remove the existing abrasive metering valve
and necessary pipe fittings. NOTE: The following
installation describes how to install the valve on a
machine with minimal rotation clearance. It is not
necessary to disassemble the valve if rotates freely on
the bottom of the machine.
WARNING
2.3
Remove the four cap screws holding the flanged
adaptor to the valve assembly.
2.4
Use a 1-1/2" close nipple to connect the flanged
adaptor to the outlet at the bottom of the blast machine.
If the adaptor has an inspection plate, position the plate
toward the blast hose connection. If the adaptor does
not have an inspection opening, align the bolt holes fore
and aft, with the wide gap toward the blast hose
connection.
2.5
Position the adaptor gasket between the flanged
adaptor and valve assembly, and bolt the parts together.
2.6
Connect the pipe fittings between the wye
existing pusher line. It may be necessary to "fit" with new
nipples to align the height of the pusher line with the
wye.
