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60-2102—7
F.P. • Rev. 10-94 • ©Honeywell Inc. 1994 • Form Number 60-2102—7
V51E
Butterfly Valve
The V51E Butterfly Valve is a firing rate valve
used to provide variable flow control of natural,
liquefied petroleum (LP), and manufactured gases.
It is also applicable to controlling air flow. The V51E
Valve is actuated by a firing rate motor mounted
directly on the valve. The V51E is not applicable as
a safety shutoff valve.
The V51E Valve provides high capacity with a
relatively constant relationship between flow rate
and opening plate angle. The V51E firing rate
motor assembly is especially adaptable to commer-
cial and industrial installations that require close
control of large gas capacities.
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Variety of valve sizes, firing rate motors and link-
ages. For most modulating applications that do not
require final shutoff service of firing rate valve.
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Rugged cast aluminum body provides durability and
maintenance-free operation.
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Compatible with Modutrol Motor and Q100A or B
Linkage, Actionator Motor and Q100C Linkage,
and Type 03 Air-O-Motor Pneumatic Actuator and
Q524A Linkage.
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The valve mechanism is equipped with strain release
springs.
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Suitable for electric or pneumatic operators with the
appropriate linkage.
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May be used with manufacturers own linkage and
drive motor.
CONTENTS
Specifications ................................................. 2
Ordering Information ..................................... 2
Installation ..................................................... 5
Adjustments and Checkout ............................. 8
Maintenance ................................................... 8