- Products
- Hydraulic components
- Valves
- Auxiliary valves
- Flow control valves
- FR3S - Hammer valve
FR3S - Hammer valve
FR3S. The valve can be used to electrically control a regulated flow, e.g. to a hydraulic hammer, while diverting part of the flow to control cylinders and other actuators. For open-centre systems.
- adjustable pressure relief valve for hammer line P (pos.1), pressure range 50-350bar. NOTE! DOES NOT REGULATE PRESSURE IN LINE B OR IN LINE IN.
- normally open tank line, electrically controlled cartridge valve (pos. 2)
- maximum back pressure in tank line T 1,5bar
- flow in P line adjustable (pos. 3)
- when the tank line is open, the P line must have at least 7,5bar back pressure
- back pressure can be created in the P line if needed with check valve FR3S-FPR
- coil not included in the price. Suitable coil e.g. CT-9200
- Flow is increased by turning the adjusting screw clockwise
When the cartridge valve is open (in its normal position), the flow coming to line IN is directed to line B.
When the cartridge valve is energized (the valve closes), the flow is split to the hammer in line P and to other actuators in line B. Devices connected to line B are functions related to the normal operation of the machine, such as cylinder movements.
NOTE!! THE HAMMER LINE OF THE HAMMER VALVE REQUIRES CHECK VALVE FR3S-FPR TO OBTAIN THE REQUIRED BACK PRESSURE.
| Code | Threads (BSP) | Max inlet flow (l/min) | Max adjusted flow (l/min) | Factory setting (l/min) | Flow increase/revolution (l/min) | Package size (KPL) |
|---|---|---|---|---|---|---|
| FR3S-08-350NO | 1/2" | 100 | 85 | 30 | 18 | 1 |
| FR3S-12-350NO | 3/4" | 200 | 140 | 30 | 20 | 1 |
| FR3S-16-350NO | 1" | 300 | 220 | 30 | 26 | 1 |
| FR3S-20-350NO | 1 1/4" | 400 | 300 | 30 | 28 | 1 |
