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21WN5-9
General Purpose
2-way, internally piloted, normally closed solenoid valve
3/4"-2"
Pipe Sizes
2-230 psig
Operating Pressure
8W
Coil

ABOUT SERIES 21WN5-9 SOLENOID VALVES
These large flow solenoid valves are pilot-operated diaphragm valves with Cv flow factors of up to 53. They can be used for both air and water. The valves have orifice sizes of up to 2”. They are also available with different seal materials and electroless nickel plating. Solenoid valves in this series are used on car washing equipment, irrigation equipment, cooling and pump equipment, and automation equipment, in addition to various other applications, as well.
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 21WN5-9 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)
21WN5KB190-8W 3/4" 3/4" 9.80 8 2 230/230
21WN6KB250-8W 1" 1" 14.00 8 2 230/230
21WN7KB350-8W 1 1/4" 1 3/8" 28.00 8 2 150/150
21WN8KB400-8W 1 1/2" 1 1/2" 36.00 8 2 150/150
21WN9KB500-8W 2" 2" 53.00 8 2 150/150
#2. FKM seal: For air, inert gas, water, synthetic oils (14-280°F)
Series 21WN5-9 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)
21WN5KV190-8W 3/4" 3/4" 9.80 8 2 230/230
21WN6KV250-8W 1" 1" 14.00 8 2 230/230
21WN7KV350-8W 1 1/4" 1 3/8" 28.00 8 2 150/150
21WN8KV400-8W 1 1/2" 1 1/2" 36.00 8 2 150/150
21WN9KV500-8W 2" 2" 53.00 8 2 150/150
#3. EPDM seal: For water, low-pressure steam (14-280°F)
Series 21WN5-9 valve models with EPDM sealing material:
Model # Pipe Size
(Inch)
Orifice Size
(Inch)
Flow Factor
(CV)
Watt Rating
(W)
Min. Pressure
(PSI)
Max. Pressure
(AC/DC)
21WN5KE190-8W 3/4" 3/4" 9.80 8 2 230/230
21WN6KE250-8W 1" 1" 14.00 8 2 230/230
21WN7KE350-8W 1 1/4" 1 3/8" 28.00 8 2 150/150
21WN8KE400-8W 1 1/2" 1 1/2" 36.00 8 2 150/150
21WN9KE500-8W 2" 2" 53.00 8 2 150/150