Used in applications where the inlet pressure is greater than 175 PSI

Tamper switch available, contact Dixon for details.

• 1/4" NPT gauge ports - both sides
• Drilled and tapped standard

• Gives the contractor flexibility during installation, and the ability to adjust the settings once installed, as hydraulic conditions change.
• 3/8" adjusting rod included

• Failure to follow installation and operating instructions could result in serious and disabling injury or death to the user or others or destructive damage to property. Never use or operate this valve without inspecting it for safe and appropriate operation.
• The valve selected must not exceed 175 PSI output either static or residual, nor can the inlet residual pressure exceed 400 PSI.
• Inlet pressures as high as 400 PSI are permitted on settings 1 and 5. Inlet pressure setting 10 should not exceed 350 PSI. Inlet pressure on setting 15 should not exceed 250 PSI.
• Pressure can be expected to increase 20-25 PSI for each major division of the setting and to drop an average of 4 PSI per 50 GPM of flow.
• For the '10' and '15' settings, outlet pressure follows inlet pressure up to 100 PSI, until pressure in the piston chamber overcomes the spring.
• Do not use in sprinkler systems without outlet pressure below 50 PSI.

UL Listed

• Determine desired outlet pressure for known inlet pressure
• Remove the tamper-resistant screw and slide the plastic cover up to access the adjusting nut.
• Use a 3/8" diameter rod in any one of the 6 holes in the adjusting nut and rotate counter clockwise to increase the pressure at the outlet.
• Check valve under pressure under static and under the anticipated flowing conditions to ascertain that the setting produces the expected results.