104 / 221
ZONE VALVES
HYDRONIC
CONTROLS
ZSW34NCA
Indicates Canadian Model Number: call 1-800-305-6953 to order
www.white-rodgers.com105
HYDRONIC /
APPLIANCE
DIRECT-CONNECT ZONE VALVES – FLARE, SWEAT
AND NPT MODELS
FEATURES
• Lever for manual open (normally closed valves only).
• Auxiliary switch (optional).
• Return spring design – stainless steel for long life.
• Plastic molded cover provides extra protection from moisture.
• Swing-type ball valve made from EPDM (Ethylene Propylene Polymer).
– Rotating design results in less wear on valve.
– Raised ball design ensures positive valve closure and even surface wear.
• Valve body and crank arm assemblies each made from one-piece cast brass
construction.
• Gears made from heavy 14 gauge brass for durable long life.
• Valve assembly design includes a recessed "O" ring for positive sealing.
• Not for steam systems.
SPECIFICATIONS
Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 VAC
Frequency . . . . . . . . . . . . 50 / 60 Hz
Connection . . . . . . . . . . . . 18
”
leads
Motor . . . . . . . . . . . . . . Electric synchronous, spring return
Positioning . . . . . . . . . . . . 2-way, straight through
Canada
Model Number
Pipe Size
Pipe
Connection
Flow Capacity
Cv
Auxiliary
Switch
De-Energized
Position
ΔP
Max. System
Pressure
Max. Water
Temp.
Z Series
ZINV12NCA
1⁄2
”
Inv. Flare
3.5
Yes
NC
20 PSI
142 PSI
110°C
ZINV12NOA
1⁄2
”
Inv. Flare
3.5
Yes
NO
20 PSI
142 PSI
110°C
ZFL38NO
3⁄8
”
Flare
3.5
No
NO
20 PSI
142 PSI
110°C
ZFL38NO-34AD*
3⁄8
”
Flare
3.5
No
NO
20 PSI
142 PSI
110°C
ZFL38NC
3⁄8
”
Flare
3.5
No
NC
20 PSI
142 PSI
110°C
ZFL38NC-34AD*
3⁄8
”
Flare
3.5
No
NC
20 PSI
142 PSI
110°C
ZFL38NCA
3⁄8
”
Flare
3.5
Yes
NC
20 PSI
142 PSI
110°C
ZSW12NCA
1⁄2
”
Sweat
3.5
Yes
NC
20 PSI
142 PSI
110°C
ZSW34NCA
3⁄4
”
Sweat
3.5
Yes
NC
20 PSI
142 PSI
110°C
ZSW34NO
3⁄4
”
Sweat
3.5
No
NO
20 PSI
142 PSI
110°C
ZSW1NCA
1
”
Sweat
3.5
Yes
NC
20 PSI
142 PSI
110°C
ZSW1NCA7C
1
”
Sweat
7.0
Yes
NC
20 PSI
142 PSI
110°C
ZNPT12NCA
1⁄2
”
NPT
3.5
Yes
NC
20 PSI
142 PSI
110°C
ZNPT12NO
1⁄2
”
NPT
3.5
No
NO
20 PSI
142 PSI
110°C
ZNPT34NCA
3⁄4
”
NPT
3.5
Yes
NC
20 PSI
142 PSI
110°C
ZNPT1NCA
1
”
NPT
3.5
Yes
NC
20 PSI
142 PSI
110°C
ZNPT1NCA7C
1
”
NPT
3.5
Yes
NC
20 PSI
142 PSI
110°C
Z Series EZ-top
13FL38NCA
3⁄8
”
Flare
3.5
Yes
NC
20 PSI
142 PSI
110°C
13ZINV12NCA
1⁄2
”
Inv. Flare
3.5
Yes
NC
20 PSI
142 PSI
110°C
*With (2)
3
/
4
”
sweat adaptors