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HD Fire Single Interlock Pre-Action System, Dry Pilot Actuation
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HD Fire Single Interlock Pre-Action System, Dry Pilot Actuation

Single interlockDry pilot actuation50 to 200 NBUL Listed

A UL Listed single interlock pre-action system released by a dry pilot line, built on HD's deluge valve Model H3 and check valve Model CH in sizes from 2 to 8 inch.

  • UL Listed deluge valve Model H3 and check valve Model CH
  • Sizes 2, 3, 4, 6 and 8 inch (50 to 200 NB)
  • With or without release panel, compressor, butterfly valve and air maintenance device
  • Grooved or flanged valve ends, water motor gong optional
  • Supplied pre-assembled or loose

Standards and approvals: UL Listed

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Download the official HD Fire catalogue (PDF, 16.0 MB)

Specifications

Specifications
SpecificationDetails
SIZE50, 80, 100, 150 & 200 NB
DELUGE VALVE ModelH3, UL Listed
CHECK VALVEModel-CH
SPRINKLER ALARMUL Listed (Optional)
RELEASE PANELUL Listed (Optional)
WATER FLOW SWITCHUL Listed

Specifications as published by HD Fire. Please confirm the exact model with us before ordering.

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