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1.25" 140-250 Self-Operated Modulating Valve For Outdoor Crop Dryer Service

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Manufacturer: Johnson Controls

Description: 1.25" 140-250 ModCropDryValve

Category: Valves

Sub Category: Temperature Regulating Valves

V50 Series Self-Operated Modulating Valves

For Outdoor Crop Dryer Service


These valves control the flow of
gas on natural or LP gas fired
outdoor crop dryers and are
used to maintain a desired air
drying temperature. Changes in
air temperature at the sensing
bulb cause the valve to
modulate the gas supply to the
main burner.

! CAUTION: Valves are for

outdoor crop dryer service

only. Not for use on

applications of any other


All Series V50 valves are
designed for use only as
operating devices. Where
system closure, improper flow
or loss of pressure due to
valve failure can result in
personal injury and/or loss of
property, a separate pressure
relief or safety shutoff valve,
as applicable, must be added
by the user.


· Free movement of parts
provides fast, uniform

· Easy to adjust by turning “T”
handle range screw.

· High temperature
diaphragms as required for
most LP gas units.

· Variety of temperature
ranges for various drying

· Built-in temperature gage
available to indicate sensed
air temperature.

General Description

A vapor pressure sensing
element opposes the range
spring to increase gas flow on
temperature drop and decrease
gas flow on temperature rise.
Amount of movement toward
open or closed gas flow
depends on amount of
temperature change at the
sensing bulb.
The operator can set the valve
to be fully closed at any
temperature within its range.
A temperature indicating gage is
available at additional cost on
quantity orders. The gage is an
integral part of the temperature
element and helps the operator
make accurate settings.

Replaces Part Numbers: V50AE-3, CARV50AE-3

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