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2-Way Solenoid Valves - Anti-Waterhammer, Normally Closed

SV280 Series

2-Way Anti-Waterhammer Solenoid Valves | SV280 Series

2-Way Anti-Waterhammer Solenoid Valves

  • Durable Brass Valve Body
  • SV283 to SV287 Offer Adjustable Closing Time and Manual Override
Valves, Regulators and I/P Converters - View related products


Water Treatment, Irrigation, Cooling, Car Washing Equipment, Petroleum Processing, Dish and Bottle Washing

The SV281 through SV287 Series valves are 2-way, pilot-operated, anti-waterhammer, and normally closed. These valves are designed to reduce or control waterhammer, which typically occurs with incompressible fluids when the closing of a valve creates a sudden change of the fluid velocity. Restriction of the pilot flow in these valves will prevent them from slamming closed. Valve and piping system life is enhanced since the noise, vibration, and shock of waterhammer are reduced.

Where small flows (CV <3.0) at relatively low pressure differentials are present, the waterhammer is eliminated by the fixed restriction of the pilot flow. This is the standard design in the industry. The SV283 through SV287 valves offer additional features. To reduce waterhammer in high-flow applications, a unique field adjustment device can effectively control the waterhammer in an application. The closing time on these valves can be adjusted by a 4-position selector. Position 1 allows the fastest closing, position 4 the slowest. There is also a manual override screw that is only used if the coil has failed.

SV281 to SV287 pilot operated
Wetted Parts: Brass, Stainless steel, copper, and seal (SV281 and SV282, also FKM)
Medium: Liquid or gases
Max Static Pressure: 5 times max psid
Ambient Temp: -9 to 50°C (15 to 122°F)
Mounting: Pipe mounting, any direction
Power: 10 W, 120 Vac, Class F
Place Order(Specify Model Number)
Part Number/ Desc.
Fixed Response Time Valves, 15 ms open, 850 ms close
Consult Sales  
Anti-waterhammer, valve with 3/8 NPT fitting, 7/16" orifice, Buna-N seal, fixed response times
Adjustable Response Time Valves
Availability: 1 week
Anti-waterhammer, valve with 1 NPT fitting, 1" orifice, Buna-N seal, adjustable response times
Consult Sales  
Anti-waterhammer, valve with 1-1/4 NPT fitting, 1-1/8" orifice, Buna-N seal, adjustable response times
Availability: 1 week
Replacement coil, 110 Vac
Availability: 11 weeks
Replacement coil, 220 Vac
Availability: 1 week
Replacement coil, 24 Vdc
All amounts shown in EUR, GBP, or USD
Note: *Response time is non-adjustable.
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