The Model 1330/2400 Pressure Sustaining Pilot controls the amount of pressure in the upper chamber of the Main valve(s). (Hence, the degree of opening or closing of the Main valve). The upstream pressure increases, the pilot begins to open, decreasing the amount of pressure in the upper chamber of the main valve allowing it to open a proportionate amount, in order to maintain a constant inlet pressure. As the upstream pressure decreases, the pilot begins to close, allowing the pressure in the upper chamber of the main valve to increase causing it to close. This is a constant modulating action compensating for any change in upstream pressure.
MODEL 1330 / 2400
Pressure Reducing Pilot
- Adjusting Screw Cover
- Adjusting Screw
- Spring
- Diaphragm
- Pressure Sense
- Pilot Outlet
- Pilot Inlet
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