
Document 560002a 060303
DH Instruments, Inc.
4765 East Beautiful Lane
Phoenix AZ 85044-5318
USA
Tel 602.431.9100
Fax 602.431.9559
www.dhinstruments.com
Calibration Solutions
for Pressure
and Flow™
PG7600™ Vacuum Relief Valve
P/N 401050
Installation Instructions
PG7600 VACUUM RELIEF VALVE,
P/N 401050, INCLUDES:
QTY PART NO DESCRIPTION
1 401050 Vacuum relief valve assembly
1 100272 Gland (on PG7600 VAC port)
1 101200 Collar (on PG7600 VAC port)
1 560002 Instruction Sheet
Vacuum relief valve is shown in the closed position.
GENERAL INSTALLATION
nRemove gland, collar and plastic plug from the PG7600™vacuum port.
oInstall gland and collar onto vacuum relief valve assembly.
Collar threads left-handed. Ensure collar is fully threaded. The plastic plug is not used.
pScrew the adaptor (as assembled) into the PG7600™vacuum port. Torque to 15 Nm (Newton meter).
PG7600 is a trademark, registered and otherwise, of DH Instruments, Inc.