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Tyco DV-5A Double Interlock Preaction Valve, Electric/Pneumatic, DN40 to DN200 (TFP1461)
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Tyco DV-5A Double Interlock Preaction Valve, Electric/Pneumatic, DN40 to DN200 (TFP1461)

Preaction valveDouble interlockElectric/pneumaticDN40 to DN200UL, C-UL, FM

A DV-5A diaphragm valve for double interlock preaction systems that opens only when the electric detection system has operated and an automatic sprinkler has opened.

  • Sizes DN40 to DN200; epoxy coated ductile iron inside and out
  • A solenoid valve and a dry pilot actuator in series hold the valve shut; both must open for it to operate
  • The releasing panel opens the solenoid valve on fire detection or a manual pull station; loss of system air from an opened sprinkler opens the dry pilot actuator
  • For areas such as refrigerated spaces where accidental flooding of the sprinkler pipes must be avoided
  • Separately ordered semi-assembled trim, or fully trimmed with or without a system main control valve
  • Tyco lists UL and C-UL Listing and FM Approval

Standards and approvals: UL/C-UL Listed, FM Approved

Sizes: DN40 thru DN200

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Download the official Tyco catalogue (PDF, 4.6 MB)

Specifications

Specifications
SpecificationDN40 thru DN200
Valve TrimThe maximum pressure rating for the electric pneumatic double interlock preaction trim is limited by the solenoid valve. For more information about the solenoid valve, see Technical Data Sheet TFP2180.
Pressure LossRefer to Graph A
Valve BodyEpoxy coated ductile iron per ASTM A536-77, Grade 65-45-12
Diaphragm CoverEpoxy coated ductile iron per ASTM A536-77, Grade 65-45-12
DiaphragmPolyester fabric reinforced, TEFLON coated, EPDM rubber per ASTM D2000
Diaphragm Cover FastenersAluminum zinc coated steel Note: For wrench and socket sizes, see Table B.

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

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