Granzow, Inc.Your source for valves.
ValvesPumpsPressure & Temperature ControlsLiquid Level Controls
21WN3Z-4Z
General Purpose
2-way, internally piloted, normally open solenoid valve
3/8"-1/2"
Pipe Sizes
2-230 psig
Operating Pressure
8W
Coil

ABOUT SERIES 21WN3Z-4Z SOLENOID VALVES
These are very high flow, 2-way, normally open solenoid valves that are available in 3/8" and 1/2" pipe sizes. The minimum pressure differential is 2 psig and the maximum is 230 psig. The pressure rating is for both AC and DC voltages. These solenoid valves are available with NBR seals and FKM seals. Valves in this series are used in applications such as automotive, automation, and heating and cooling.
Electrical Connection
Rating: NEMA 4
Strain relief connector: Model 009
1/2" conduit connector: Model 010
6 ft. power cord: Model GRN100
Materials of Construction
Body: Brass
Armature Tube: Stainless Steel 300
Fixed Core: Stainless Steel 400
Plunger: Stainless Steel 400
Spring: Stainless Steel 300
Shading Ring: Copper

SOLENOID VALVE MODELS, BY SEAL MATERIAL
For more information on a solenoid valve in this series, select any available valve model below.
#1. NBR seal: For air, inert gas, water (14-195°F)
Series 21WN3Z-4Z valve models with NBR sealing material:
Model # Pipe Size
(Inch)
Orifice Size
(Inch)
Flow Factor
(CV)
Watt Rating
(W)
Min. Pressure
(PSI)
Max. Pressure
(AC/DC)
21WN3Z0B130-8W 3/8" 1/2" 4.10 8 2 230/230
21WN4Z0B130-8W 1/2" 1/2" 4.80 8 2 230/230
#2. FKM seal: For air, inert gas, water, synthetic oils (14-280°F)
Series 21WN3Z-4Z valve models with FKM sealing material:
Model # Pipe Size
(Inch)
Orifice Size
(Inch)
Flow Factor
(CV)
Watt Rating
(W)
Min. Pressure
(PSI)
Max. Pressure
(AC/DC)
21WN3Z0V130-8W 3/8" 1/2" 4.10 8 2 230/230
21WN4Z0V130-8W 1/2" 1/2" 4.80 8 2 230/230