ACC-1 Dry Pipe Accelerator – Accelerators | Tyco Fire

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  4. Accelerators
  5. ACC-1 Dry Pipe Accelerator
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ACC-1 Dry Pipe Accelerator

Mechanical accelerator

This quick-opening dry pipe accelerator reduces the time for valve operation when a sprinkler is activated.

  • UL and C-UL Listed, FM and LPCB Approved; allowed for use in VdS Approved DPV-1 assemblies
  • Designed for use with Model DPV-1 dry pipe valves — 2-½-, 3-, 4- or 6-inch sizes
  • Speeds operation of the dry pipe valve upon loss of air pressure
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  • Overview
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  • Technical Resources
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For Use With DPV-1 Valves

The Tyco® Model ACC-1 dry pipe accelerator attaches to the Tyco® Model DPV-1 dry pipe valve to allow faster valve operation. It automatically adjusts to both small and slow changes in system pressure, but it trips when there is a rapid and steady drop in pressure (like during a sprinkler operation). Upon tripping, the accelerator transmits system air pressure to the intermediate chamber of the Model DPV-1 dry pipe valve. This neutralizes the differential pressure holding the Model DPV-1 dry pipe valve closed and permits it to open. The ACC-1 has a unique, positive action; an internal anti-flood device; and a ball float that combine to prevent water and water-borne debris from entering the more sensitive operating areas of the accelerator.
For Use With DPV-1 Valves

Features

  • Designed to trip when system air pressure drops at a rate exceeding approximately 1 psi/minute (0.07 bar/min)
  • Upon tripping, it transmits system air pressure to the intermediate chamber of the dry pipe valve, which neutralizes the differential pressure holding the valve closed and opens the waterway clapper
  • UL and C-UL Listed, FM and LPCB Approved
  • Maximum water supply pressure: 250 psi (17,2 bar)
  • Maximum system air (or nitrogen) pressure of 70 psi (4,8 bar)

Benefits

Reduce False Trips
Reduce False Trips

Active air pressure monitoring adjusts to small and slow changes in pressure system, but trips when there is a steady pressure drop.

Quick Opening
Quick Opening

This dry pipe accelerator reduces the time for valve operation when your automatic sprinklers are activated.

Trusted Performance
Trusted Performance

Tyco® products have helped to protect spaces for more than 130 years.

Technical Resources

Document Name
Description
Language
Resource Type

Data Sheet

TFP1112 Technical Data Sheet (English)

ACC-1 Dry Pipe Accelerator - TFP1112 (English) External Resetting Quick Opening Device For Dry Pipe Valves

English Data Sheet
VIEW

Brochure

Tyco-Fire-Valves-System-Components (English)

Fire Valves and System Components

English Brochure
VIEW

Data Sheet

TFP1112_ES Technical Data Sheet – Spanish Translation (Spanish)

ACC-1 Dry Pipe Accelerator - TFP1112 (Spanish) External Resetting Quick Opening Device For Dry Pipe Valves

Spanish Data Sheet
VIEW

Data Sheet

TFP1112_DE Technical Data Sheet – German Translation (German)

ACC-1 Dry Pipe Accelerator - TFP1112 (German) External Resetting Quick Opening Device For Dry Pipe Valves

German Data Sheet
VIEW

Data Sheet

TFP1112_SV Technical Data Sheet – Swedish Translation (Swedish-Sweden)

ACC-1 Dry Pipe Accelerator - TFP1112 (Swedish) External Resetting Quick Opening Device For Dry Pipe Valves

Swedish-Sweden Data Sheet
VIEW

Data Sheet

TFP1112_FR Technical Data Sheet – French Translation (French)

ACC-1 Dry Pipe Accelerator - TFP1112 (French) External Resetting Quick Opening Device For Dry Pipe Valves

French Data Sheet
VIEW

Data Sheet

TFP1112_CS Technical Data Sheet – Czech Translation (Czech)

ACC-1 Dry Pipe Accelerator - TFP1112 (Czech) External Resetting Quick Opening Device For Dry Pipe Valves

Czech Data Sheet
VIEW

Data Sheet

TFP1112_HU Technical Data Sheet – Hungarian Translation (Hungarian-Hungary)

ACC-1 Dry Pipe Accelerator - TFP1112 (Hungarian) External Resetting Quick Opening Device For Dry Pipe Valves

Hungarian-Hungary Data Sheet
VIEW

Data Sheet

TFP1112_IT Technical Data Sheet – Italian Translation (Italian-Italy)

ACC-1 Dry Pipe Accelerator - TFP1112 (Italian) External Resetting Quick Opening Device For Dry Pipe Valves

Italian-Italy Data Sheet
VIEW

Data Sheet

TFP1112_NL Technical Data Sheet – Dutch Translation (Dutch NL)

ACC-1 Dry Pipe Accelerator - TFP1112 (Dutch) External Resetting Quick Opening Device For Dry Pipe Valves

Dutch NL Data Sheet
VIEW

Data Sheet

TFP1112_NO Technical Data Sheet – Norwegian Translation (Norwegian (Bokmal)-Norway)

ACC-1 Dry Pipe Accelerator - TFP1112 (Norwegian) External Resetting Quick Opening Device For Dry Pipe Valves

Norwegian (Bokmal)-Norway Data Sheet
VIEW

Data Sheet

TFP1112_PL Technical Data Sheet – Polish Translation (Polish-Poland)

ACC-1 Dry Pipe Accelerator - TFP1112 (Polish) External Resetting Quick Opening Device For Dry Pipe Valves

Polish-Poland Data Sheet
VIEW

Data Sheet

TFP1112_PT Technical Data Sheet – Portuguese Translation (Portuguese)

ACC-1 Dry Pipe Accelerator - TFP1112 (Portuguese) External Resetting Quick Opening Device For Dry Pipe Valves

Portuguese Data Sheet
VIEW

Data Sheet

TFP1112_RU Technical Data Sheet – Russian Translation (Russian-Russia)

ACC-1 Dry Pipe Accelerator - TFP1112 (Russian) External Resetting Quick Opening Device For Dry Pipe Valves

Russian-Russia Data Sheet
VIEW
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