Bell-gossett HS 112D 792 High Pressure Water Vent Valve User Manual download pdf

INSTRUCTION MANUAL

HS-112

REVISION D

• Before using product, read and understand instructions.

• Save these instructions for future reference.

• All work must be performed by qualified personnel trained in the proper application,

installation, and maintenance of systems in accordance with all applicable codes

and ordinances.

• To prevent serious burns, wear heat resistant gloves when opening and closing supply

valves, or handling hot equipment.

• To prevent serious burns, the internal pressure of the system must be 0 psi (0 bar) before

servicing.

Failure to follow these cautions will cause personal injury.

Model 792

High Pressure Water Vent Valve

IMPORTANT: To prevent system damage from water

hammer or sudden shock, open supply valves slowly.

If you are uncertain about the product’s adaptability for

your application, please call the factory or authorized

representative before using the product.

The vent pressure rating must be equal or greater than

the maximum system pressure.

The vent discharge must be connected to a drain or fluid

recovery unit to prevent damage to the equipment or

structures in the event of leakage.

WARNING

CAUTION

Excessive use of pipe joint compound when installing air vent will foul

the vent’s operating mechanism allowing water to escape. Pipe joint

compound must be conservatively applied to male threads only. Failure

to follow this instruction can result in personal injury from hot water

and/or property damage.

CAUTION

When the vent discharges air or if foreign material from the system

fouls the vent’s operating mechanism, it is possible for water to also be

discharged. Vent must be piped to a drain. Failure to follow this instruc-

tion can result in personal injury from hot water and/or property damage.

CAUTION

The use of PTFE impregnated pipe compound and PTFE tape on pipe

threads provide lubricity which can lead to overtightening and breakage.

Do not overtighten. Failure to follow this instruction can result in

personal injury from hot water and/or property damage.

CAUTION

Hoffman Specialty

Model 792

High Pressure Water Vent Valve

1 2

Summary of Contents

Page 1 - Model 792

INSTRUCTION MANUAL HS-112 REVISION D• Before using product, read and understand instructions.• Save these instructions for future reference.• All work

Page 2 - INSTALLATION

Xylem Inc. 8200 N. Austin Avenue Morton Grove, Illinois 60053 Phone: (847) 966-3700 Fax: (847) 965-8379www.xyleminc.com/brands/bellgossettBell & G

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Bell-gossett HS 112D 792 High Pressure Water Vent Valve User Manual

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