ASCO Valve 8221 Two-Way Pilot-Operated, Slow Closing Solenoid Valves

Designed to eliminate water hammer problems, these ASCO 8221 two-way brass body solenoid valves are available for pipe sizes from 3/8" to 2" NPT, with pressure ranges from 5 PSI to 150 PSI. Available in normally open or normally closed.

Key Specifications

  • Pilot operated, normally open or normally closed
  • Snubber slows disc-closing speed to protect system against water hammer damage more effectively than other techniques
  • Pressure spike due to water hammer reduced to a point, eliminating the need for suppressors or other controls in most water systems
  • Looking for more hot water and steam valves?  See the ASCO Valve 8220 series

Specifications, Manuals, and Supporting Literature

Model Selection Guide

Use this table to find the right model for your application.  Don't see the option you need? Call a Lesman sales specialist at 800-953-7626

Pipe
Size
(In.)
Orifice
Size
(In.)
Operating Pressure
Differential (Water)
Cv
Flow
Factor
Max.
Fluid
Temp.
Watt Rating/
Class of
Coil
Insulation
Solenoid Valve Repair Kit Replacement Coil
Catalog
Number
Catalog
Number
Catalog
Number
Normally Closed (Closed when de-energized)
3/8 9/16 5-150 PSI 3 180°F 6.1/F 8221G001 310387 238210-032-D
1/2 9/16 5-150 PSI 3.5 180°F 6.1/F 8221G003 310387 238210-032-D
3/4 3/4 5-150 PSI 5.5 180°F 6.1/F 8221G005 310388 238210-032-D
1 1 5-150 PSI 11.5 180°F 6.1/F 8221G007 310420 238210-032-D
1 1/4 1 1/8 5-150 PSI 13 180°F 6.1/F 8221G009 310506 238210-032-D
1 1/2 1 1/4 5-150 PSI 24 180°F 6.1/F 8221G011 310421 238210-032-D
2 1 3/4 5-150 PSI 36 180°F 6.1/F 8221G013 310422 238210-032-D

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