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AUTOMATIC SAFETY SHUTOFF VALVES
70-8509—01 2
V5055/V5097 Industrial Gas Valves
• V5055 / V5097 single-seated, normally closed valves are
suitable for service requiring tight shutoff.
Can be used with natural or liquefied petroleum (LP)
gases.
V5055A / V5097A,C,D,E Valves are for On-Off service.
V5055 / V5097B Valve has a characterized guide to
provide slow opening, Hi-Lo-Off, or Modulating service.
V5055 / V5097C,E Valves have two seals and when used
with the V4055D,E Actuators, the combination provides a
proof-of-closure switch and valve seal overtravel interlock.
V5055 / V5097D,E Valves are for high pressure
applications.
V5055 models feature threaded connections for seven
pipe sizes from 3/4- to 3-inch NPT (or parallel BSP);
V5055A,B,C are also available in a 4-inch size with flange
connections.
Standard with 1/4-inch upstream and downstream tapping
with plug.
V5097 models are available in small-body size covering
3/4” to 2” pipe size and large-body size covering 2” to 3”
size.
Fluid Power GasValve Actuators
Rated for final safety shutoff service when used with V5055
/ V5097 Valves.
V4055 Actuators are for On-Off service, V4062 Actuators
are for Hi-Lo-Off service, and V9055 Actuators are for
Modulating service.
V4055D,E, V4062D, and V9055D Actuators have a proof-
of-closure switch to provide valve seal overtravel interlock
when used on a V5055 / V5097C,E Valve with a double
seal.
V4055B,E Actuators are for high pressure applications.
Maximum closing time is one second, which meets
approval body requirements.
Red OPEN indicator attached to the actuator stem will
show if the valve is even slightly open; yellow SHUT
indicator on the valve stem will show only when the gas
valve is fully closed .
Standard enclosure meets NEMA 1 general purpose
requirements; optional enclosure meets NEMA 4
weatherproof requirements.
Optional damper shaft available with or without spring
return; shaft extends out both sides and rides in Teflonlike,
Delrin bushings.
Uses standard damper crank arm, which is readily
available from wholesalers.
Optional, field-adjustable, spdt auxiliary switch is available.
Low-fire adjustment on V4062 and V9055 Actuators is
internal to minimize tampering.
V9055 Actuator has internal, 24 volt transformer for line
voltage connections and a field addable kit is available to
provide V9055 acceptance of a 4 to 20 mA dc signal.
Table 2. Pressure Ratings of Valve-Actuator Combinations
a
Max Operating Pressure Differential (UL) or Max Operating Pressure (CSA); maximum allowable pressure drop from inlet to
outlet for proper operation .
b
Max Rated Pressure (UL) or Max Close-off Pressure (CSA) ; maximum pressure that the valve can be exposed to without leak-
age or damage to the valve.
c
Applies for small-body V5097 valves 3/4” up to 2” pipe size.
d
Applies for large-body V5097 valves 2” up to 3” pipe size.
e
V5055A, B, C only.
Valve-actuator Approvals
The following combinations of V5055 / V5097 Valves (3/4
through 4 in.) and V4055, V4062, and V9055 Fluid Power
Actuators are approved by the agencies listed:
Industrial Risk Insurers Acceptable and Underwriters Labora-
tories Inc. Listed:
V4055A,B,D,E/V5055 / V5097A,B,C,D,E
V4062/V5055 / V5097A,B,C,E
V9055/V5055 / V5097A,B,C,E
Factory Mutual Approved :
V4055A/V5055 / V5097A,B V4055E/V5055 / V5097E
V4055B/V5055 / V5097D V4062/V5055 / V5097B,C
V4055D/V5055 / V5097C V9055/V5055 / V5097B,C
Canadian Standards Association File 158158-1205788:
V4055A - V5055A,B / V5097A,B
V4055B - V5055D / V5097D
V4055D - V5055C / V5097C
V4055E - V5055E / V5097E
V4062 - V5055B,C / V5097B,C
V9055 -V5055B,C / V5097B,C
British Gas Corporation and Dutch Gas Institute Approved:
V4055 or V4062 with several V5055 / V5097A and V5055 /
V5097B models.
V4055D or V4062D with V5055 / V5097C models with an
internal screen.
Model Pipe Size
STANDARD PRESSURE ACTUATORS
V4055A, D, F, G, V4062A, D, V9055A, D
HIGH PRESSURE ACTUATORS
V4O55B, E, V4062B
M.O.P.D.
a
Max. Rated
Pressure
b
M.O.P.D.
a
Max. Rated
Pressure
b
STANDARD
PRESSURE VALVES
V5055A, B, C, F,
V5097A, B, C
3/4” to 1-1/2”
c
5 PSI 340 mbar 15 PSI 1.0 Bar 15 PSI 1030 mbar 15 PSI 1.0 Bar
2” to 3”
d
5 PSI 340 mbar 15 PSI 1.0 Bar 15 PSI 1030 mbar 15 PSI 1.0 Bar
4” flanged
e
3 PSI 207 mbar 15 PSI 1.0 Bar 5 PSI 340 mbar 15 PSI 1.0 Bar
HIGH PRESSURE
VALVES V5055D, E,
V5097D, E
3/4” to 1-1/2”
c
5 PSI 340 mbar 75 PSI 5.0 Bar 25 PSI 1720 mbar 75 PSI 5.0 Bar
2” to 3”
d
5 PSI 340 mbar 45 PSI 3.0 Bar 15 PSI 1030 mbar 45 PSI 3.0 Bar