Control Products 740A User Manual
MEPCO
STEAM SPECIAL TIES
RADIATOR TRAPS
FLOAT & THEMOSTATIC TRAPS
RADIATOR VALVES
MEDIUM & HIGH PRESSURE TRAPS
STRAINERS
V ACUUM BREAKERS
RADIAT OR TRAPS
Over 90 years ago, C.A. Dunham developed the first
commercially successful fluid-filled thermostatic
radiator trap. Since that time, MEPCO has manufactured well over 8 million traps. Today, in hundreds of
thousands of installations from coast to coast,
MEPCO quality traps are delivering dependable,
long-lasting, low maintenance service so essential to
efficient heating systems. MEPCO traps efficiently
drain condensate, vent air from steam equipment,
and prevent the flow of steam to return piping with a
simple ruggedly constructed unit that requires
minimum maintenance.
Low Pressure Thermostatic Traps
Low Pressure Thermostatic Traps are applicable for pressures from 25” Hg vacuum to 25 PSI, and capacities
to 700 EDR. With a cast brass body and cover, non-corrosive working parts, and thermostatic discs that
have been tested to over 10 million cycles, these traps set industry standards for dependability. Our seats
are guaranteed for 25 years, with large seat openings to prevent clogging. Stop shoulder construction of disc
permits individual calibration for correct operation and field interchangeability without field adjustment.
Volatile fluid in disc is sealed under a high vacuum to provide uniform expansion over the entire operating
range. Available in five patterns (AP, SW, LH, RH, VS): sizes ½”, 3/4”, and 1” with either integral or replaceable seats. Refer to file number 1505.
RADIATOR VALVES
1240
The 1240 Packless Valve is applicable to both hot water and steam
heating systems from 25” Hg
vacuum to 125 PSI. It can also be
applied to water systems up to 125
PSI. Our highest quality valve, the
1240, has a uniqe design utilizing
primary and secondary levers of high
tensile noncorrosive alloys to insure
trouble free operation. The 1240
Packless Valve opens and closes in
less than one turn and is equipped
with an indicating dial. Available in
two patterns (AP and ST): sizes ½”
and 3/4”. Refer to file number 1527.
740A
The 740A Radiator Valve is applicable to water systems as well as
steam at operating pressures from
25” Hg to 150 PSI. This radiator
valve has a one piece formed solid
packing held in place by a heavy coil
spring to assure a tight seal around
the valve stem. Referred to in the
industry as packless, the 740A opens
and closes in less than one turn and
is equipped with “On” and “Off” dial
arrows and easy to use dial divisions
for adjustment. Available in four
patterns (AP, RH, LH, ST): sizes ½”
through 1½”. Refer to file number
1522.
2
600A
The 600A Radiator Valve is applicable for steam or water systems up
to 125 PSI operating pressures.
Proven in over 40 years of service,
the 600A is your best buy for quality
at an inexpensive price. A heavy
packing nut and a one piece formed
solid packing keeps a tight seal
around the valve stem. The 600A
opens and closes without binding
allowing for exceptionally free
drainage of water. Available in two
patterns (AP and ST): sizes ½”
through 2”. Refer to file number
1526.
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