Product Overview

6442 series

Motorized two-way ball zone valve with three-wire power open/power closed control. Connections: 1/2” to 1” sweat with

unions,

3/4” press with unions,

or 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

to 230°F (-5 to 110 °C). Maximum working differential pressure (close-off) 150 psi (10 bar). Self-extinguishing polycarbonate

actuator; Color gray RAL 9002; Synchronous three-wire motor with auxiliary 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). Auxiliary

micro-switch contacts rating 5 A (24 V). Operating time (angle of rotation 90°) 40 s; Ambient temperature range 32 to 130°F

(0 to 55°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,

3/4” press with unions,

or 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 to 230°F (-5 to 110 °C). Maximum working

differential pressure 150 psi (10 bar). Self-extinguishing polycarbonate actuator; Color gray RAL 9002; Synchronous

three-wire motor with auxiliary 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). Auxiliary micro-switch contacts rating 5 A (24 V). Operating

time (angle of rotation 90°) 40 s; Ambient temperature range 32 to 130°F (0 to 55°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,

3/4” press with unions,

or 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

to 230°F (-5 to 110 °C). Maximum working differential pressure 150 psi (10 bar). Self-extinguishing polycarbonate actuator;

Color gray RAL 9002; Synchronous three-wire motor with auxiliary 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). Auxiliary micro-switch

contacts rating 5 A (24 V). Operating time (angle of rotation 90°) 40 s; Ambient temperature range 32 to 130°F (0 to 55°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: 414-238-2360 · Fax: 414-238-2366

sales@caleffi.com · www.caleffi.com/usa/en-us