Air gap drain, Parts – Ames Fire & Waterworks 5000RPDA Reduced Pressure Detector Assemblies User Manual
Page 16
AIR GAP DRAIN INSTALLATION
REAR VIEW
SIDE VIEW
AIR GAP DRAIN
APPLICATION
The Air Gap Drain is designed to be installed under the
relief valve on Ames RP and RPDA devices to catch minor
relief valve discharges created by pressure fl uctuations of
the supply line. The Ames Air Gap Drain is approved by
the USCFCCCHR.
INSTALLATION INSTRUCTIONS
A. Before installation, check with local authorities as an air
gap drain is not approved for all installations.
B. Remove lower two relief valve mounting bolts.
C. Align bolt holes on air gap drain with holes in relief
valve fl ange.
D. Insert the two bolts which were removed in Step B
through air gap drain and relief valve fl ange, then tighten.
Price List, Product Series or Design are subject to change without notice.
PARTS
DIFFERENTIAL PRESSURE RELIEF VALVE FOR SERIES 4000RP
NOTE: Same relief valve is used for all size mainline valves 4" through 10" (100-250mm)
ITEM
PART
NO.
DESCRIPTION
QTY.
#
1
Complete
1
7011283
2
Mounting Seat Gasket
1
7011295
3
Stainless Steel Seat Tube
1
7011290
4
Mounting Bolt (not shown)
4
7014619
5
Diaphragm
1
7011292
6
Diaphragm Top Plate
1
7011291
7
Diaphragm Bottom Plate
1
7011294
8
Spring
1
A300887
9
O-ring
1
7011233
10
Repair Kit (#2, #5, #9)
1
7013955
NOTE: The Ames Differential Pressure Relief Valve (relief valve) is designed to open and discharge if the fi rst mainline
check is fouled; accordingly if the relief valve is discharging the fi rst service procedure is to examine the fi rst check
for fouling. The Ames relief valve requires minimal service requirements.
RELIEF VALVE (Section View)
IOM-A-BPA 0904
EDP#7016815
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