Grain Systems PNEG-526 - Manual (Page 111)

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CORPORATION
MUNCIE, INDIANA, USA
INDUSTRIAL COMBUSTION EQUIPMENT AND VALVES
Maxon practices a policy of continuous product improvement. It reserves the right to alter specifications without prior notice.
Flow Control Valves Page 7000-S-1
11/90
lessens the chance of internal flow turbulence being
set-up in the piping manifolds and control valve.
– Check fluid flow direction through “-P” and “-O”
poppet-type valves. It must flow only in direction
matching the arrow cast into valve body. If neces-
sary, valve body may be rotated per instructions
given on page 7016.
– Install flow control valves carefully and maintain
adequate dimensional clearance to allow full
stroke and travel of the valve’s control linkage.
Internal drive mechanisms within a control motor
may be damaged if linkage is restricted as to cause
binding in high or low flow position.
CAUTION: All Flow Control Valves are designed
for throttling service only and are not intended
for tight shut-off.
– Main system shut-off should always use a
manual “leak-tight” upstream fuel cock.
– Support weight of piping independently. Do not
place any Maxon Flow Control Valve in a piping
bind. Provide pipe hangers and/or special support
for related manifolds.
– Maxon connecting base and linkage assemblies
are designed to locate and/or position the
control operator for its interaction with the Flow
Control Valve assembly. They are not intended to
support the weight of the control motor. Special
provisions will be required to support the weight of
the control operators.
– Use of pipe heavier than schedule #40 can
cause interference with butterfly-type Flow Control
Valves and restrict the valve from full opening.
– Flow Control Valves provide the means to
adjust fluid and/or gas flows. They should be
installed with at least four pipe diameter lengths of
straight pipe before and after the valve. This
Mounting Instructions for motor operator on Series “CV” Flow Control Valves
For those Series “CV” Valve assemblies furnished with
connecting base and linkage, the accompanying diagrams
illustrate mounting procedures relative to each specific type
operator.
First, mount your control motor to connecting base in
accordance with diagrams at right.
Secondly, determine if your electric operator travels
through 90° or 180° rotations. Then arrange connecting
linkage and motor crank arm as shown below for your
specific operator.
90° Control Motor 160° – 180° Control Motor
Honeywell
#M644, M744,
M941 or M944
(7616BR Crank)
Mount with four short bolts
and nuts at indicated holes.
Barber-Colman
EA50
Mount with three short bolts
and nuts at indicated holes.
Penn/Johnson
M80, M81
(MD3-600 Crank)
Mount with two short bolts
and nuts and long bolt
screwed into operator base
through slotted hole.
Installation Instructions
Crank & Linkage Side
Crank & Linkage Side
Crank & Linkage Side