Specifications

96
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Water Hammer Arresters 1250 Series
Water Hammer Arrester 1250AA-3C
Hose Bibb Pressure Gauge Model HGI-25
• A – F
• Compact design allows installation in 2 x 4 wall cavities
• Water hammer arrester designed to protect residential, commercial and
industrial water lines during pressure surges following quick valve closure
• Maximum temperature 180°F
• Maximum pressure 150 psi
• AA
• 1/2" male copper sweat connection
• Water hammer arrester designed to protect residential, commercial and
industrial water lines during pressure surges following quick valve closure
• Maximum temperature 180°F
• For point of use applications
• 3/4” hose
• 3/4” hose adapter
• Useful in detecting thermal expansion problems
• Maximum pressure indicator needle
• 0 - 200 psi range
For Additional Information, Ask For MIS-GUAGE or visit our
web site.
• Pressure chamber seals an air charge above an o-ring sealed Acetal
piston
• ASSE-1010, A.N.S.I. A112-26-1M
For Additional Information, Ask For WHA-1250 or visit our
web site.
• Maximum pressure 150 psi
• Pressure chamber seals an air charge above an o-ring sealed Acetal
piston
• ASSE-1010, A.N.S.I. A112-26-1M
For Additional Information, Ask For WHA-1250AA or visit our
web site.
Typical Install FeaturesFeaturesFeatures
Designed to protect residential, commercial and industrial water lines during pressure
surges following quick valve closure. This excessive pressure surge is absorbed by the pre-
charged cushion of air permanently sealed within the water hammer arrester. The water
hammer arrester may be installed within a stud bay without the need for an access panel.
Also effective in controlling water hammer in irrigation systems.
Designed to protect residential, commercial and industrial water lines during pressure
surges following quick valve closure. This excessive pressure surge is absorbed by the pre-
charged cushion of air permanently sealed within the water hammer arrester. The water
hammer arrester may be installed within a stud bay without the need for an access panel.
Also effective in controlling water hammer in irrigation systems.
The Wilkins HGI-25 is designed to measure the water pressure in a plumbing system. Equipped with a
3/4” hose connection, the HGI-25 can be connected to any hose bibb. The HGI-25 is equipped with a
tell-tale needle that will remain at the highest pressure reached. The needle is reset by turning a thumb
screw. The HGI-25 is ideal for determining if thermal expansion is causing pressure rises within the system.
ApplicationsApplicationsApplications
QUICK CLOSURE VALVE
OUTLET
WATER HAMMER ARRESTER
LONG RUN OF PIPING
SHOCK
OVER 20'
XY
UP TO 20'
WATER HAMMER ARRESTER
TYPICAL BRANCH LINE
RISER
Typical Installation
HOSE BIBB
HOSE BIBB
PRESSURE GAUGE
MODEL HGI-25
00
180180
140140
100100
6060
2020
8080
120120
160160
200
psipsi
4040
Miscellaneous Plumbing Products