Watts HY42 User Manual
Series hy42, Non-freeze wall hydrants with backflow preventer, For commercial and industrial applications
Rough-in Dimensions
For Commercial and Industrial Applications
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Series HY42
Non-Freeze Wall Hydrants
with Backflow Preventer
For Wall Thickness: 2
1
⁄
2
" - 18" (65 - 450mm)
Series HY42 is an automatic draining, freezeless wall hydrant
with vacuum breaker-backflow preventer protection to prevent
backsiphonage. It is designed to blend with modern architec-
ture for installation on restaurants, schools, office buildings,
churches, apartments, motels, stores, shopping centers and
industrial buildings.
Features
• Threaded inlet connection
3
⁄
4
" (20mm) female
or 1" (25mm) male I.P.S.
• Tamper resistant Tee key operates hydrant.
• Permanent type brass valve body
• Replaceable EPDM seat surface
• One piece valve plunger which accurately controls both
the flow and drainage with a minimum number of turns.
• Casing consists of rugged brass pipe.
• Exterior finish of chrome-plated brass.
Standards
ASSE Standard 1019
Pressure
Maximum Operating Pressure: 125psi (8.6 bar)
Approvals
ASSE
Canadian Standards Association
Listed by IAPMO
Specifications
Wall hydrant shall be exposed-type Watts automatic draining
Series HY42 with vacuum breaker-backflow preventer protec-
tion,
3
⁄
4
" (20mm) hose thread nozzle, one piece valve plunger
to control both flow and drain functions, rugged brass pipe
construction, chrome- plated brass finish. Loose Tee key to be
furnished with each hydrant. Complies with ASSE 1019.
Top View
Front View
Cut-out View
Wall
Thickness
Dimensions – Weights
model
Wall ThiCkness
WeighT
in
mm
lbs.
kgs.
HY42-025
2
1
⁄
2
64
3.5
1.6
HY42-04
4
100
4.5
2.0
HY42-06
6
150
4.9
2.2
HY42-08
8
200
5.3
2.4
HY42-10
10
250
5.7
2.6
HY42-12
12
305
6.1
2.8
HY42-14
14
356
6.5
2.9
HY42-16
16
406
6.9
3.1
HY42-18
18
457
7.3
3.3
4"
2"
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.
ES-HY42