Elkhart Brass HC-750-FLX User Manual

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Operating and Maintenance Instructions

Hydro-Chem® Flex

Hydro-Chem® powder technology of Williams Fire & Hazard Control with

Flex variable smooth bore technology of Elkhart Brass.

Catalog Number: HC-750-FLX

Part Number: 00090001

98320000 – REV. REL

Table of Contents

I. Product Safety Information................................................................ 3

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II. Hydro-Chem

A. Stream Adjustment .......................................................................... 4

B. Water/Foam Settings....................................................................... 4

Flex Operation........................................................... 4

C. Dry Chemical Settings..................................................................... 4

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III. Hydro-Chem

Flex Maintenance................................................... 5

A. Inspections........................................................................................ 5

B. Maintenance After Use.................................................................... 5

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IV. Hydro-Chem

Flex Parts Drawing................................................. 6

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I. PRODUCT SAFETY INFORMATION

Important:

Before installing and operating this equipment, read & study this manual thoroughly. Proper
installation is essential to safe operation. In addition, the following points should be adhered to in
order to ensure the safety of equipment and personnel:

• All personnel who may be expected to use this equipment must be thoroughly trained in its
safe and proper use.

• Before flowing this device, check that all personnel (fire service and civilian) are out of the
stream path. Also, check to make sure stream direction will not cause avoidable property
damage.

• Become thoroughly familiar with the hydraulic characteristics of this equipment, and the
pumping system used to supply it. To produce effective fire streams operating personnel must
be properly trained.

• Open water valve supplying this equipment slowly, so that piping and hose lines fill slowly, thus
preventing possible water hammer occurrence.

• After each use, and on a scheduled basis, inspect equipment per instructions in section III.

• The maximum allowable water pressure for this nozzle is 150 psi.

• Follow dry chemical manufacturer recommendations for operations with any dry chemical

agent.

Important:

Open and close the supply valves slowly to avoid creating pressure spikes. Continually creating
pressure spikes may compromise the integrity of the nozzle. Never intentionally cause water
hammer or pressure spikes.

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