SUN HYDRAULICS
RSFC8DV
$122.42 USD
- SUN HYDRAULICS
- Material:RSFC8DV
- Model:RSFC-8DV
- Summary:Cartridge
Quantity in stock: 0
***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Sun Hydraulics directly.***
The Sun Hydraulics RSFC8DV (RSFC8DV) is a normally closed modulating valve that features an integral pilot control cavity, designed with a balanced piston and external drainage. This versatile valve is compatible with T8A pressure control cartridges, allowing it to regulate pressure by opening to port 2 when the inlet port 1 reaches the pilot control cartridge's set pressure. It maintains insensitivity to back pressure at port 2 up to its setting, making it suitable for replacing 2-port relief valves in systems with return line pressure. The RSFC8DV supports cross port relief circuits but is not recommended for load holding applications due to potential spool leakage. It incorporates Sun's floating style construction to prevent internal binding caused by excessive torque or machining variations. The valve's specifications include a maximum operating pressure of 5000 psi (350 bar) and a capacity of 30 gpm (120 L/min). It features a main stage orifice protected by a 150-micron stainless steel screen and operates with a typical response time of 10 ms. Its pilot flow ranges from 10 to 15 in\u00b3/min (0.16 to 0.25 L/min), while main stage leakage at 110 SUS (24 cSt) is approximately 3 in\u00b3/min at 1000 psi (50 cc/min at 70 bar). The valve has a hex size of 1-1/8 inches (28.6 mm) and requires an installation torque between 45 and 50 lbf-ft (61 and 68 Nm). For optimal performance, the main stage valve should be installed first, followed by the T8A pilot control valve torqued appropriately. The RSFC8DV accommodates various pilot control options sold separately, including solenoid, air, and hydraulic operations, enhancing its adaptability across applications requiring precise pressure modulation.
The Sun Hydraulics RSFC8DV (RSFC8DV) is a normally closed modulating valve that features an integral pilot control cavity, designed with a balanced piston and external drainage. This versatile valve is compatible with T8A pressure control cartridges, allowing it to regulate pressure by opening to port 2 when the inlet port 1 reaches the pilot control cartridge's set pressure. It maintains insensitivity to back pressure at port 2 up to its setting, making it suitable for replacing 2-port relief valves in systems with return line pressure. The RSFC8DV supports cross port relief circuits but is not recommended for load holding applications due to potential spool leakage. It incorporates Sun's floating style construction to prevent internal binding caused by excessive torque or machining variations. The valve's specifications include a maximum operating pressure of 5000 psi (350 bar) and a capacity of 30 gpm (120 L/min). It features a main stage orifice protected by a 150-micron stainless steel screen and operates with a typical response time of 10 ms. Its pilot flow ranges from 10 to 15 in\u00b3/min (0.16 to 0.25 L/min), while main stage leakage at 110 SUS (24 cSt) is approximately 3 in\u00b3/min at 1000 psi (50 cc/min at 70 bar). The valve has a hex size of 1-1/8 inches (28.6 mm) and requires an installation torque between 45 and 50 lbf-ft (61 and 68 Nm). For optimal performance, the main stage valve should be installed first, followed by the T8A pilot control valve torqued appropriately. The RSFC8DV accommodates various pilot control options sold separately, including solenoid, air, and hydraulic operations, enhancing its adaptability across applications requiring precise pressure modulation.
This valve is a normally closed modulating element that incorporates an integral pilot control cavity. It is externally drained, and is a balanced piston design. The pilot control cavity will accept any T-8A pressure control cartridge. When the pressure at the inlet (port 1) reaches the pilot control cartridge's setting, the modulating element starts to open to port 2, throttling flow to regulate the pressure. The pilot cartridge's setting determines the difference in pressure between the inlet (port 1) and the drain (port 3). These valves are insensitive to back pressure at port 2 , up to the valve setting. They may be used to regulate pressure in place of 2-port relief valves if there is pressure in the return line.
- All 3 port sequence cartridges are physically and functionally interchangeable (i.e. same flow path, same cavity for a given frame size).
- Pilot flow continues to increase as the pressure at port 1 (inlet), relative to the pressure at port 3 (drain), rises above the valve setting.
- The main stage orifice is protected by a 150 micron stainless steel screen.
- Pressure at port 3 is directly additive to the valve setting at a 1:1 ratio and should not exceed 5000 psi (350 bar).
- NOTE: With the -8 control option, the main stage valve should first be installed to the correct torque value. The T-8A pilot control valve should then be installed into the main stage valve to its required torque value.
- The -8 control option allows the pilot control valve to be incorporated directly into the end of the relief cartridge via the T-8A cavity. These pilot control cartridges are sold separately and include solenoid operation, air pilot operation, and hydraulic pilot operation. See Pilot Control Cartridges.
- Will accept maximum pressure at port 2; suitable for use in cross port relief circuits. If used in cross port relief circuits, consider spool leakage.
- Not suitable for use in load holding applications due to spool leakage.
- Incorporates the Sun floating style construction to minimize the possibility of internal parts binding due to excessive installation torque and/or cavity/cartridge machining variations.
| Cavity | T-2A |
| Series | 2 |
| Capacity | 30 gpm120 L/min. |
| Maximum Operating Pressure | 5000 psi350 bar |
| Control Pilot Flow | 10 - 15 in³/min.0,16 - 0,25 L/min. |
| Response Time - Typical | 10 ms10 ms |
| Pilot Control Cavity | T-8AT-8A |
| Main stage leakage at 110 SUS (24 cSt) | 3 in³/min.@1000 psi50 cc/min.@70 bar |
| Valve Hex Size | 1 1/8 in.28,6 mm |
| Valve Installation Torque | 45 - 50 lbf ft61 - 68 Nm |
| Model Weight | .50 lb0,25 kg |
| Seal kit - Cartridge | Viton: 990-202-006 |
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Notes:
- Compound cartridge (pilot and main stage) assembly information is provided for reference only. Cartridges must be ordered separately and assembled at point of use.