Manual

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  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  ange.

D. Insert the two bolts which were removed in Step B

through air gap drain and relief valve  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  rst mainline

check is fouled; accordingly if the relief valve is discharging the  rst service procedure is to examine the  rst check

for fouling. The Ames relief valve requires minimal service requirements.

RELIEF VALVE (Section View)

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