Model DPV-1 Dry Pipe Valve
External Resetting
Page 1 of 20
JANUARY 2016
TFP1020
Worldwide
Contacts www.tyco-fire.com
General
Description
The TYCO Model DPV-1 Dry Pipe
Valves are differential valves used to
automatically control the flow of water
into dry pipe fire protection sprinkler
systems upon operation of one or more
automatic sprinklers. The DPV-1 also
provides for actuation of fire alarms
upon system operation. The Model
DPV-1 features are as follows:
• External reset.
• 250 psi (17,2 bar) pressure rating.
• Unique offset single clapper design
enabling a simple compact valve to
minimize installation labor.
• Ductile iron construction to ensure
a lightweight valve to minimize ship-
ping cost.
•
A variety of inlet and outlet
connections.
• Compact, Pre-Trimmed, and Semi-
Assembled, easy to operate valve
trim.
• Simple reset procedure through the
elimination of priming water.
Dry pipe sprinkler systems are used
in unheated warehouses, parking
garages, store windows, attic
spaces, loading docks, and other
areas exposed to freezing tempera-
tures, where water filled pipe cannot
be utilized. When set for service, the
dry pipe sprinkler system is pressur-
ized with air (or nitrogen). The loss of
pressure through an operated auto-
matic sprinkler in response to heat
from a fire permits the DPV-1 Dry
Pipe Valve to open and allow a flow of
water into the sprinkler system piping.
Table B establishes the minimum
required system air pressure that
includes a safety factor to help prevent
false operations that might occur due
to water supply fluctuations.
NOTICE
The Model DPV-1 Dry Pipe Valves
described herein must be installed
and maintained in compliance with
this document, as well as with the
applicable standards of the National
Fire Protection Association, in addition
to the standards of any other authori-
ties having jurisdiction. Failure to do so
may impair the performance of these
devices.
The owner is responsible for main-
taining their fire protection system
and devices in proper operating con-
dition. Contact the installing contrac-
tor or product manufacturer with any
questions.
Available Sizes and End Connections
End Connection
Nominal Valve Size
2-1/2 Inch
(DN65)
3 Inch
(DN80)
4 Inch
(DN100)
6 Inch
(DN150)
Flange x Flange
N/A
N/A
•
•
Flange x Groove
N/A
N/A
•
•
Groove x Groove
•
•
•
•
• = Available
N/A = Not Available
