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21HN
General Purpose
2-way, internally piloted, normally closed solenoid valve, with assisted lift
1/4"-1"
Pipe Sizes
0-200 psig
Operating Pressure
8W, 12W, 14W
Coils

ABOUT SERIES 21HN SOLENOID VALVES
These unique solenoid valves are 2-way, normally closed valves with pilot control, and will operate with zero psig. They are designed for direct pipe mounting with a brass body. The valves are available with interchangeable coils for both AC and DC voltages. Solenoid valves in this series are used in such applications as water treatment, pumps, spraying, automation equipment, and a variety of others.
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 + PA seal: For air, inert gas, water (14-195°F)*
Series 21HN valve models with NBR + PA sealing material:
Model # Pipe Size
(Inch)
Orifice Size
(Inch)
Flow Factor
(CV)
Watt Rating
(W)
Min. Pressure
(PSI)
Max. Pressure
(AC/DC)
21HN2KY110-8W 1/4" 7/16" 1.40 8 0 200/75
21HN2KY110-12W 1/4" 7/16" 1.40 12 0 200/200
21HN2KY110-14W 1/4" 7/16" 1.40 14 0 200/200
21HN3KY110-8W 3/8" 7/16" 1.40 8 0 200/75
21HN3KY110-12W 3/8" 7/16" 1.40 12 0 200/200
21HN3KY110-14W 3/8" 7/16" 1.40 14 0 200/200
21HN4KY160-8W 1/2" 5/8" 2.80 8 0 200/35
21HN4KY160-12W 1/2" 5/8" 2.80 12 0 200/160
21HN4KY160-14W 1/2" 5/8" 2.80 14 0 200/200
21HN5KY160-8W 3/4" 5/8" 2.80 8 0 200/35
21HN5KY160-12W 3/4" 5/8" 2.80 12 0 200/160
21HN5KY160-14W 3/4" 5/8" 2.80 14 0 200/200
21HN6KY250-8W 1" 1" 8.30 8 0 116/0
21HN6KY250-12W 1" 1" 8.30 12 0 200/22
21HN6KY250-14W 1" 1" 8.30 14 0 200/85
*PA = polyamide