Product Overview

Series 150A
Water Hammer Arrestors
Sizes:
1
/2" and
3
/4" (15 and 20mm)
For residential/domestic water system applications, only.
Model 150A
Model 150A-HA
What is Water Hammer?
The noise from banging pipes is caused by shocks of high speed
water flowing in the pipe when a fixture is suddenly closed. Sud-
den stoppage causes a “bounceback” of the water and is called
water hammer. It might be compared to driving your car at slow
speed into a wall where the effect is negligible. However, if you
drove the car at a much higher speed, the impact would be great-
er, and consequently, so would the bounceback or shock.
Dishwashers, clothes washers, quick-closing faucets all con-
tribute to creating water hammer which is not only annoying but
damaging to pipes and appliances. The simple, economical solu-
tion is Watts Series 150A designed with a pre-charged air cham-
ber and a rugged sealed-in diaphragm which flexes to absorb the
shock. It can be installed vertically, horizontally or at any angle.
Features
•Pre-chargedairchamber
•Sealedindiaphragm
•Completestainlesssteelchamberconstruction
•Rechargeable
Pressure — Temperature
For residential/domestic water systems only.
Not for commercial applications.
Maximum working pressure: 150 psi (10.3 bar)
Maximumtemperature:180°F(82°C)
Maximum velocity: 10 ft/sec. (305 cm/sec.)
Maximum shock pressure: 200 psi (13.8)
10 cu. inch (164 cu. cm) total volume.
Weight: 12 oz. (9.6 gm)
Watts product specifications in U.S. customary units and metric are approximate and are provided for reference only. For precise measurements,
please contact Watts Technical Service. Watts reserves the right to change or modify product design, construction, specifications, or materials with-
out prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.
For Residential Applications
ES-150A
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MODEL NO. ORDERING CODE SIZE
WATER HAMMER ARRESTOR (only)
150A 0269503
1
/2"
FITTING only for
1
/2" SHOCK ARRESTOR for WASHING MACHINES with
3
/4" hose thread
connection
150-HA 0269505
3
/4" HT
WATER HAMMER ARRESTOR and FITTING with
3
/4" hose thread connection for
washing machines
150A-HA 0269508
3
/4" HT