Tyco RV-1A Manual

Model RV-1
A
Pilot-Operated
General
Description
The TYCO Model RV-1
a
Relief Valves, 2 in. to 8 in. (DN50 to
DN200), are factory assembled and
fully trimmed valve arrangements for
relief of excess water pressure. These
valves are typically used to automati-
cally relieve excess pressure in a fire
protection system that utilizes a fire
pump.
The DV-5 Water Control Valve is the
a
central component in the fully-trimmed
assembly. For information on the DV-5
Valve assembly, see Figure 2.
Pilot-controlled, the Model RV-1
maintains a relatively constant system
pressure at the pump discharge as flow
demands change.
The Model RV-1 valve is factory set to
a
approximately 175 psi (12,1 bar). The
valve may be field-set to a nominal
relief "set pressure" of 30 to 250 psi
(2,1 to 17,2 bar).
Features
• O n e - p i e c e, o n e - m ov i n g - p a r t
diaphragm
• Epoxy-coated interior and exterior
• Accurate pressure control
• In-line service
• No need to bleed trapped air from
the diaphragm chamber
• One pilot valve sub-assembly
that provides for any outlet "set
pressure"; that is; 30 to 250 psi
(2,1 to 17,2 bar)
NOTICE
The TYCO Model RV-1
a
Relief Valves described herein must be
installed and maintained in compliance
with this document and with the appli-
cable standards of the NATIONAL FIRE
PROTECTION ASSOCIATION (NFPA),
in addition to the standards of any
authorities having jurisdiction. Failure
IMPORTANT
Refer to Technical Data Sheet
TFP2300 for warnings pertaining to
regulatory and health information.
Page 1 of 12
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Pressure Relief Valve
to do so may impair the performance
of these devices.
The owner is responsible for main-
taining their fire protection system
Pressure
and devices in proper operating con-
dition. Contact the installing contrac-
tor or product manufacturer with any
questions.
Technical
Data
Approvals
UL Listed
FM Approved
a
Field Relief "Set Pressure" Range
30 to 250 psi (2,1 to 17,2 bar)
Valve
a
Temperature Range
50°F to 175°F (10°C to 80°C)
Maximum System Pressure
300 psi (20,6 bar)
Note: The system pressure is the maximum
pressure the valve is expected to be exposed
to. The valve cannot be set to relieve at any
pressure greater than 250 psi (17,2 bar).
NFPA 20 Recommended
Maximum Flow
2 in. (DN50) . . . . . . . . . . . . . 250 gpm (946 Lpm)
3 in. (DN80) . . . . . . . . . . . . .500 gpm (1893 Lpm)
4 in. (DN100) . . . . . . . . . . .1000 gpm (3785 Lpm)
6 in. (DN150) . . . . . . . . . . 2500 gpm (9462 Lpm)
8 in. (DN200) . . . . . . . . . .5000 gpm (18925 Lpm)
See Graph A for inlet pressure versus flow
characteristics.
End Connections
Flanged end connections are available as
drilled per Table A.
Valve Materials of Construction
See Figure 2
Body
Pressure
Epoxy-coated ductile iron per ASTM
A536-77, Grade 65-45-12
MAY 2021
Worldwide
www.tyco-fire.com
Contacts
Diaphragm Cover
Epoxy-coated, ductile iron per ASTM
A536-77, Grade 65-45-12
Diaphragm
Polyester fabric-reinforced, TEFLON
coated, EPDM rubber per ASTM D2000
Diaphragm Cover Fasteners
Aluminium-zinc coated steel
Trim Materials of Construction
See Figure 6
Pilot Valve
Cast bronze and stainless steel with fabric
reinforced, EPDM rubber per ASTM D2000
diaphragm
Pressure Gauges
3 3/4 in. (95 mm) diameter, UL and FM
listed, 0 to 300 psi (20,7 bar)
Strainer, Tube, and Fittings
Stainless steel
TFP1586