Hypro 3300-0102 Installation & Operation Instructions

Installation

As a relief valve, this valve should be placed in an area that remains pressurized when the gun is shut off.
As a pressure regulator, the valve maintains the pressure in the system (even during flow changes). In this condition,
always use a suitable safety valve. If the bypass is directed directly into the pump, caution should be taken to avoid
excessive water temperature increases.

Operation

:
IMPORTANT
The bypass port is at the bottom. The inlet port is on the side.
The bypass should be returned to a baffled tank for turbulence control.

Pressure Adjustment/Setting

As a relief valve, the adjustment has to be made in such a way that the pressure setting is not higher than the system's
working pressure.
As a pressure regulator, adjust the valve when the system is pressurized and the gun is open. As the adjustment cap is
turned, there should be a corresponding change in pressure. To increase the pressure, turn the cap clockwise; to
decrease the pressure, turn the cap counterclockwise. Once the desired pressure is reached, tighten the ring nut to lock
the cap in place.

Specifications for 3300-0102

Max. Flow Pressure Range Max Temp.
Standard 55 GPM
Metric 208 LM

Specifications for 3300-0103

Standard 55 GPM
Metric 208 LM

Order Information

Part No.
3300-0102 3/4" NPT Inlet x 1/2" NPT Bypass Model
3300-0103 1" NPT Inlet x 1" NPT Bypass Model
3430-0747

Troubleshooting

Valve chatters
Valve continually bypasses
Leaking out the top of valve
Model 3300-0102 & 3300-0103 High Flow
Balanced Pressure Regulator Valves
Installation & Operation Instructions
260-2000 PSI 185º F
18-138 BAR 85º C
260-2000 PSI 185º F
18-138 BAR 85º C
Description
Piston and Seat Repair Kit
Valve is installed improperly (inlet & bypass may be reversed).
Valve is missing its orifice washer.
Valve is improperly set; repeat adjustment process.
Seat or piston worn; replace as needed.
Valve is improperly set; repeat adjustment procedure.
O-ring and piston are worn or cut. Install repair kit.
Inlet Port Bypass Port Dimensions
3/4" NPT 1/2" NPT 6.25" x 2.00" x 1.50"
3/4" NPT 1/2" NPT 159 x 50 x 38 mm
1" NPT 1" NPT 6.25" x 2.90" x 1.65"
1" NPT 1" NPT 159 x 74 x 42 mm
Form L-1523
11/09