Brochure

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25
Angled radiator valve body. Order
thermo-electric actuators or thermostatic
control heads separately for fi eld
installation.
Chrome plated.
Max. working pressure: 150 psi (10 bar).
Temperature range: 40—212°F (5—100°C).
Straight radiator valve body.
Order thermo-electric actuators or
thermostatic control heads separately
for fi eld installation.
Chrome plated.
Max. working pressure: 150 psi (10 bar).
Temperature range: 40—212°F (5—100°C).
221
tech. broch. 01034 tech. broch. 01034
Code Description Cv Pk Lbs USD
220400A ½" NPT 2.7 1 0.3 71.00
220500A ¾" NPT 3.7 1 0.3 78.00
Code Description Cv Pk Lbs USD
221400A ½" NPT 1.7 1 0.3 71.00
221500A ¾" NPT 2.5 1 0.3 78.00
Replacement internal valve assembly fi ts
radiator valves.
Code Description Pk Lbs USD
F36073 ½" and ¾" 1 0.1 10.00
NPT THERMOSTATIC RADIATOR VALVE BODIES
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The control mechanism of the
thermostatic radiator valve is a
proportional temperature controller,
composed of a liquid fi lled bellows.
With increasing temperature the
liguid expands which, in turn, causes
the bellows to expand. When the
temperature decreases the opposite
occurs; the bellows contracts allowing
the spring to return it to the original
position. By connection to the valve
stem, these movements adjust the heat
transfer medium to the radiator.
Universal radiator tool for installing
½ and ¾" tail pieces.
Code Description Pk Lbs USD
387127 Radiator tool 1 1.0 142.80
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The thermostatic control actuator is fi lled
with a non compressible liquid bellows
(1). Plus, the radiator valve body has extra
strong valve stem compression spring
(2). The non compressible liquid provides
the force required to compress the strong
valve stem spring. When the temperature
decreases, the liquid bellows contracts,
which allows the valve stem spring to lift
the valve plug from valve seat after long
periods of non movement. This ensures
that after a long ‘off-season’, when the
actuator operates for the fi rst time, the
spring reliably lifts the valve plug off the
seat without sticking.
1
2
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*
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028 028
The Caleffi thermostatic control heads
200000 and 201000, and the radiator
valve bodies 220 and 221 series in
combination with control heads 200 and
201 are approved to EN 215 (KEYMARK)
and Thermostatic Effi ciency Label (TELL):
Level A, Reg. 10428/9-20110527. Under
EN 215 these devices are certifi ed to
meet manufacturer quality assurance
requirements with reference to temperature
setting and adjustment, nominal fl ow rate,
hysteresis, and leak tightness of the body
assembly and stem seal. The European
TELL certifi cation promotes responsible
energy usage and provides information to
customers when selecting products. The
control heads 200 and 201 are “A” rated for
effi ciency. Additional information available
on request.
220