Watts HY42 User Manual
For Commercial and Industrial Applications
ES-HY42
Job Name
Job Location
Engineer
Approval
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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 architecture 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.
Contractor
Approval
Contractor’s P.O. No.
Representative
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Rough-in Dimensions
Thickness
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Wall
Top View
Front View
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-
3
tion,
⁄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.
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 without prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.
Dimensions – Weights
MODEL WALL THICKNESS WEIGHT
in mm lbs. kgs.
HY42-025 21⁄2 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
Cut-out View
4"
2"
Series HY42 (with Box)
Non-Freeze Wall Hydrants
with Backflow Preventer
and Mounting Box
For Wall Thickness: 21⁄2" - 18" (65 - 450mm)
Series HY42 is an automatic draining, freezeless wall hydrant
with vacuum breaker-backflow preventer protection to prevent
backsiphonage enclosed in a flush mounting wall box. It is
designed to blend with modern architecture 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 on brass
• Box door hinges in the up position, locks in the open
position allowing hose free access to either side
• Exterior finish on box and door of chrome-plated brass
Front View with Box
Rough-in Dimensions
Wall
Thickness
Series HY42
HY42 Box
Top View
Add 2" to wall
thickness for
recessbox
HY42
Standards
ASSE Standard 1019
Pressure
Maximum Operating Pressure: 125psi (8.6 bar)
Approvals
ASSE
Listed by IAPMO
Specifications
Wall hydrant shall be exposed-type Watts automatic draining
Series HY42 with vacuum breaker-backflow preventer protec-
3
tion,
⁄4" (20mm) hose thread nozzle, one piece valve plunger
to control both flow and drain functions, rugged brass pipe
construction, locking chrome-plated brass box and hydrant.
Mounting box locks in the up position allowing hose access to
either side. Loose Tee key to be furnished with each hydrant.
Complies with ASSE 1019.
Front View
Cut-out View
6.25" 5.25"
MODEL WALL THICKNESS WEIGHT
in mm lbs. kgs.
HY42-025 21⁄2 64 3.5 1.6
HY42-04 4 102 4.5 2.0
HY42-06 6 152 4.9 2.2
HY42-08 8 203 5.3 2.4
HY42-10 10 254 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
HY42 Box 5.0 2.3
HY42 Tee-Key 1.0 0.5
HY42 Wall Clamp 2.0 0.9
A Watt s Water Technolo gies Company
Canada: 5435 North Service Rd., Burlington, ONT. L7L 5H7; www.wattscanada.ca
ES-HY42 1018 © 2010 Watts
USA: 815 Chestnut St., No. Andover, MA 01845-6098; www.watts.com
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