Product Overview

6442 series
Motorized two-way ball zone valve with three-wire power open/power closed control. Connections: ½” to 1” sweat with
unions, ½” to 1” press with unions, or ½” to 1” NPT with unions. Brass body. Full-port chrome-plated brass ball. Ball seal
made of PTFE with O-Ring in EPDM. Control stem seal with double O-Ring in EPDM. Union seals with O-Ring in EPDM.
Suitable fluids: water and glycol solutions. Maximum percentage of glycol 50%. Maximum working pressure 150 psi (10 bar).
Temperature range 20 degrees F to 230 degrees F (-5 degrees C to 110 degrees C). Maximum working differential pressure
(close-off) 150 psi (10 bar). Self-extinguishing polycarbonate actuator; Color gray RAL 9002; Synchronous three-wire motor
with micro-switch; Electric supply 24 V; Power consumption 4 VA; Starting (inrush) current 170 mA; Holding current 0 mA;
Dynamic starting torque 70 in·lb (8 N·m). Micro-switch contacts rating 5 A (24 V). Operating time (angle of rotation 90°) 40 s.
Ambient temperature range 32 degrees F to 130 degrees F (0 degrees C to 55 degrees C).
6443.. 3BY series
Motorized three-way ball zone valve, by-pass version, with three-wire power open/power closed control. Connections:
1/2” to 1” sweat with unions, ½” to 1” press with unions, or ½” to 1” NPT with unions. Brass body. Full-port chrome-plated
brass ball. Ball seal made of PTFE with O-Ring in EPDM. Control stem seal with double O-Ring in EPDM. Union seals
with O-Ring in EPDM. Suitable fluids: water and glycol solutions. Maximum percentage of glycol 50%. Maximum working
pressure 150 psi (10 bar). Temperature range 20 degrees F to 230 degrees F (-5 degrees C to 110 degrees C). Maximum
working differential pressure 150 psi (10 bar). Self-extinguishing polycarbonate actuator; Color gray RAL 9002; Synchronous
three-wire motor with micro-switch; Electric supply 24 V; Power consumption 4 VA; Starting (inrush) current 170 mA; Holding
current 0 mA; Dynamic starting torque 70 in·lb (8 N·m). Micro-switch contacts rating 5 A (24 V). Operating time (angle of
rotation 90°) 40 s. Ambient temperature range 32 degrees F to 130 degrees F (0 degrees C to 55 degrees C).
6443 series
Motorized diverter/mixer three-way ball valve with three-wire power open/power closed control. Connections: 1/2” to 1” sweat
with unions, ½” to 1” press with unions, or ½” to 1” NPT with unions. Brass body. Full-port chrome-plated brass ball. Ball
seal made of PTFE with O-Ring in EPDM. Control stem seal with double O-Ring in EPDM. Union seals with O-Ring in EPDM.
Suitable fluids: water and glycol solutions. Maximum percentage of glycol 50%. Maximum working pressure 150 psi (10 bar).
Temperature range 20 degrees F to 230 degrees F (-5 degrees C to 110 degrees C). Maximum working differential pressure
150 psi (10 bar). Self-extinguishing polycarbonate actuator; Color gray RAL 9002; Synchronous three-wire motor with micro-
switch; Electric supply 24 V; Power consumption 4 VA; Starting (inrush) current 170 mA; Holding current 0 mA; Dynamic
starting torque 70 in·lb (8 N·m). Micro-switch contacts rating 5 A (24 V). Operating time (angle of rotation 90°) 40 s. Ambient
temperature range 32 degrees F to 130 degrees F (0 degrees C to 55 degrees C).
SPECIFICATION SUMMARIES
We reserve the right to change our products and their relevant technical data, contained in this publication, at any time and without prior notice.
Caleffi North America, Inc.
3883 W. Milwaukee Rd
Milwaukee, WI 53208
Tel: [phone] · Fax: [phone]
[e-mail] · www.caleffi.com
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