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China Good Price Dry Pilot Actuator for Dry Pilot Release Service UL FM
Basic Info
Model No.: DP 1
Product Description
Model NO.: DP 1 Sprinkler Head Type: Open Automatically Opened and Closed Repeatedly: Can Automatically Opened and Closed Closed Fire Sprinkler System: Wet Fire Sprinkler System Wet Alarm Valve Structure: Seat Type Nozzle Flow Coefficient: 80 Trademark: Tyco Origin: China Sprinkler Installation: Ordinary Alarm Valve Type: Wet Alarm Valve Open Fire Sprinkler System Type: Water Spray System Dry Alarm Valve Type: Differential Type Alarm Valve Diameter: 80mm Deluge Valve Type: Diaphragm Type Specification: 1/2 inch NPT China Good Price Dry Pilot Actuator for Dry Pilot Release Service UL FM
Model DP-1 Dry Pilot Actuator
For Deluge And Preaction Systems
Dry Pilot Release Service
General
Description
The Model DP-1 Dry Pilot Actuator is an auxiliary releasing device designed for use with Tyco Fire Products Deluge and Preaction Valves having dry pilot release systems. Also the Model DP-1 is used for Tyco Fire Products Preac-tion Valves having double interlock electric/pneumatic release. The Model DP-1 actuates these automatic water Control valves upon release of air (ni-trogen) pressure. In the case of dry pilot actuation, air pressure is released due to opening of a pilot sprinkler, or in the case of double interlock preac-tion systems air pressure is released from the system piping due to the opening of an automatic sprinkler. When the Model DP-1 actuates, it per-mits water pressure to be released from the deluge or preaction valve dif-ferential chamber, thereby allowing the deluge or preaction valve to open.
The Model DP-1 Dry Pilot Actuator is a redesignation for the Central Model DP, Gem Model B-1, and Star Model S440.
WARNING
The Model DP-1 Dry Pilot Actuator de-scribed herein must be installed and maintained in compliance with this document, as well as with the applica-ble standards of the National Fire Pro-tection Association, in addition to the standards of any Other authorities hav-ing jurisdiction. Failure to do so may impair the integrity of this device.
The owner is responsible for maintain-ing their fire protection system and de-vices in proper operating condition. The installing contractor or sprinkler manufacturer should be contacted relative to any questions.
Technical
Data
Approvals
UL and ULC Listed. FM and LPCB
Approved.
Maximum Inlet Water Pressure
250 psi (17,2 bar).
Maximum Air (Nitrogen) Pressure
50 psi (3,4 bar). Refer to Figure 2.
Assembly
The body and cover in Figure 1 are bronze. The elastomer water seal is Buna-N, and the diaphragm is nitrile coated nylon.
Operation
When the Model DP-1 Dry Pilot Actua-tor is in service, the pilot line or sprin-kler line pressure (11 - Fig. 1), as ap-plicable, holds the Diaphragm (7 - Fig. 1) depressed and the Disc (8 - Fig. 1) seated against the water pressure (12 - Fig. 1) from the differential chamber of the deluge or preaction valve.
Operation of a pilot sprinkler or auto-matic sprinkler, as applicable, relieves the air pressure from the diaphragm. The Spring (6 - Fig. 1) and water pres-sure from the differential chamber of the deluge or preaction valve then combine to force the the Model DP-1 open, which permits water to begin flowing through the 1/8 Inch diameter holes located in the wall of the Guide (5 -Fig. 1). As the air pressure contin-ues to decrease, the flow out of the Model DP-1 (13 - Fig. 1) increases to a rate which is greater than can be replenished through the restricted water supply to the differential cham-ber of the deluge or preaction valve, which in turn permits the deluge or preaction valve to open and allow a flow of water into the system piping.
The relationship of the air pressure which should be maintained for system water pressures to 250 psi (17,2 bar) and the opening pressure drop re-quired for opening of the Model DP-1 Dry Pilot Actuator are plotted in Figure 2.
Installation
The Model DP-1 Dry Pilot Actuator, which as applicable is provided as a trim component for Tyco Fire Products Deluge or Preaction Valves, must be installed in accordance with the spe-cific instructions provided with the Tyco Fire Products Deluge or Preac-tion Valve Technical Data Sheets.
NOTE
The dewpoint of the pilot line or sprin-kler system air pressure must be main-tained below the lowest ambient tem-perature to which the piping system will be exposed. Accumulation of water in the air connection to the Model DP-1 will lower the air pressure at which the Model DP-1 will open.
Ordering
Information
Orders for the DP-1 must include the description and Part Number (P/N).
DP-1:
Specify: Model DP-1 Dry Pilot Actua-tor, P/N 52-280-1-001.
Contact us if you need more details on China Good Price Dry Pilot Actuator for Dry Pilot Release Service UL FM. We are ready to answer your questions on packaging, logistics, certification or any other aspects about China Dry Pilot Actuator、China Price Dry Pilot Actuator. If these products fail to match your need, please contact us and we would like to provide relevant information.
Model DP-1 Dry Pilot Actuator
For Deluge And Preaction Systems
Dry Pilot Release Service
General
Description
The Model DP-1 Dry Pilot Actuator is an auxiliary releasing device designed for use with Tyco Fire Products Deluge and Preaction Valves having dry pilot release systems. Also the Model DP-1 is used for Tyco Fire Products Preac-tion Valves having double interlock electric/pneumatic release. The Model DP-1 actuates these automatic water Control valves upon release of air (ni-trogen) pressure. In the case of dry pilot actuation, air pressure is released due to opening of a pilot sprinkler, or in the case of double interlock preac-tion systems air pressure is released from the system piping due to the opening of an automatic sprinkler. When the Model DP-1 actuates, it per-mits water pressure to be released from the deluge or preaction valve dif-ferential chamber, thereby allowing the deluge or preaction valve to open.
The Model DP-1 Dry Pilot Actuator is a redesignation for the Central Model DP, Gem Model B-1, and Star Model S440.
WARNING
The Model DP-1 Dry Pilot Actuator de-scribed herein must be installed and maintained in compliance with this document, as well as with the applica-ble standards of the National Fire Pro-tection Association, in addition to the standards of any Other authorities hav-ing jurisdiction. Failure to do so may impair the integrity of this device.
The owner is responsible for maintain-ing their fire protection system and de-vices in proper operating condition. The installing contractor or sprinkler manufacturer should be contacted relative to any questions.
Technical
Data
Approvals
UL and ULC Listed. FM and LPCB
Approved.
Maximum Inlet Water Pressure
250 psi (17,2 bar).
Maximum Air (Nitrogen) Pressure
50 psi (3,4 bar). Refer to Figure 2.
Assembly
The body and cover in Figure 1 are bronze. The elastomer water seal is Buna-N, and the diaphragm is nitrile coated nylon.
Operation
When the Model DP-1 Dry Pilot Actua-tor is in service, the pilot line or sprin-kler line pressure (11 - Fig. 1), as ap-plicable, holds the Diaphragm (7 - Fig. 1) depressed and the Disc (8 - Fig. 1) seated against the water pressure (12 - Fig. 1) from the differential chamber of the deluge or preaction valve.
Operation of a pilot sprinkler or auto-matic sprinkler, as applicable, relieves the air pressure from the diaphragm. The Spring (6 - Fig. 1) and water pres-sure from the differential chamber of the deluge or preaction valve then combine to force the the Model DP-1 open, which permits water to begin flowing through the 1/8 Inch diameter holes located in the wall of the Guide (5 -Fig. 1). As the air pressure contin-ues to decrease, the flow out of the Model DP-1 (13 - Fig. 1) increases to a rate which is greater than can be replenished through the restricted water supply to the differential cham-ber of the deluge or preaction valve, which in turn permits the deluge or preaction valve to open and allow a flow of water into the system piping.
The relationship of the air pressure which should be maintained for system water pressures to 250 psi (17,2 bar) and the opening pressure drop re-quired for opening of the Model DP-1 Dry Pilot Actuator are plotted in Figure 2.
Installation
The Model DP-1 Dry Pilot Actuator, which as applicable is provided as a trim component for Tyco Fire Products Deluge or Preaction Valves, must be installed in accordance with the spe-cific instructions provided with the Tyco Fire Products Deluge or Preac-tion Valve Technical Data Sheets.
NOTE
The dewpoint of the pilot line or sprin-kler system air pressure must be main-tained below the lowest ambient tem-perature to which the piping system will be exposed. Accumulation of water in the air connection to the Model DP-1 will lower the air pressure at which the Model DP-1 will open.
Ordering
Information
Orders for the DP-1 must include the description and Part Number (P/N).
DP-1:
Specify: Model DP-1 Dry Pilot Actua-tor, P/N 52-280-1-001.
Contact us if you need more details on China Good Price Dry Pilot Actuator for Dry Pilot Release Service UL FM. We are ready to answer your questions on packaging, logistics, certification or any other aspects about China Dry Pilot Actuator、China Price Dry Pilot Actuator. If these products fail to match your need, please contact us and we would like to provide relevant information.
Product Categories : Control > Control Fire
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