WATER WORKS

Fixed Restriction

• ‘A’ 1 / 8 in / 3.2 mm orifice
• ‘B’ 1 / 16 in / 1.6 mm orifice
• ‘C’ 3 / 32 in / 2.4 mm orifice
• ‘D’ 1 / 4 in / 6.35 mm orifice
• ‘E’ 7 / 64 in / 2.8 mm orifice

The fixed restriction is a 303 stainless steel bodied fitting with a stainless steel orifice plug. The fixed restriction controls the flow rate in the pilot system. The orifices are sized to provide the proper control to a select series of valve sizes only. This all stainless steel version replaces all previous versions of the brass body, with stainless steel insert.

Fixed Restriction

• Maximum working temperature: 180° F / 82° C
• Maximum working pressure: 600 psi / 41.4 bar
• Connections: 1/4 in (no metric equivalent) NPT

Fixed Restriction

For more information on Fixed Restriction:

Download the Fixed Restriction Guide.

Fixed Restriction

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