SUN HYDRAULICS
RPIEQCN
$198.16 USD
- SUN HYDRAULICS
- Material:RPIEQCN
- Model:RPIE-QCN
- 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 RPIEQCN (RPIEQCN) is a fast-acting, pilot-operated, balanced piston relief cartridge designed to protect hydraulic components from pressure transients. These normally closed, pressure-limiting valves open rapidly when the inlet port 1 reaches the valve setting, directing flow to tank port 2 to limit pressure rise. The valve is characterized by a low pressure rise versus flow and quick response time, typically around 2 milliseconds. It features a main stage orifice protected by a 150-micron stainless steel screen and incorporates Sun's floating style construction to minimize internal part binding due to installation torque or machining variations. This cartridge is suitable for use in cross-port relief circuits as it accepts maximum pressure at port 2; however, spool leakage should be considered in such applications. It's not recommended for load-holding applications due to potential leakage. The back pressure on tank port 2 adds directly to the valve setting at a 1:1 ratio. The RPIEQCN has a cavity size of T-16A and can handle up to 100 gpm (380 L/min) with a maximum operating pressure of 5000 psi (350 bar). Valve adjustment requires up to five clockwise turns and features an internal hex size of 5/32 inches for the adjustment screw. Installation requires a torque of 150\u2013160 lbf ft (203\u2013217 Nm), with locknut torque specified at 80\u201390 lbf in (9\u201310 Nm). The model weighs approximately 1.20 lb (0.55 kg) and is available with Viton seal kits under cartridge number 990016006. This product is typically used in scenarios where rapid relief from excessive hydraulic pressures is critical, ensuring system safety and integrity without compromising performance efficiency.
The Sun Hydraulics RPIEQCN (RPIEQCN) is a fast-acting, pilot-operated, balanced piston relief cartridge designed to protect hydraulic components from pressure transients. These normally closed, pressure-limiting valves open rapidly when the inlet port 1 reaches the valve setting, directing flow to tank port 2 to limit pressure rise. The valve is characterized by a low pressure rise versus flow and quick response time, typically around 2 milliseconds. It features a main stage orifice protected by a 150-micron stainless steel screen and incorporates Sun's floating style construction to minimize internal part binding due to installation torque or machining variations. This cartridge is suitable for use in cross-port relief circuits as it accepts maximum pressure at port 2; however, spool leakage should be considered in such applications. It's not recommended for load-holding applications due to potential leakage. The back pressure on tank port 2 adds directly to the valve setting at a 1:1 ratio. The RPIEQCN has a cavity size of T-16A and can handle up to 100 gpm (380 L/min) with a maximum operating pressure of 5000 psi (350 bar). Valve adjustment requires up to five clockwise turns and features an internal hex size of 5/32 inches for the adjustment screw. Installation requires a torque of 150\u2013160 lbf ft (203\u2013217 Nm), with locknut torque specified at 80\u201390 lbf in (9\u201310 Nm). The model weighs approximately 1.20 lb (0.55 kg) and is available with Viton seal kits under cartridge number 990016006. This product is typically used in scenarios where rapid relief from excessive hydraulic pressures is critical, ensuring system safety and integrity without compromising performance efficiency.
Fast-acting, pilot-operated, balanced piston relief cartridges are normally closed, pressure-limiting valves used to protect hydraulics components from pressure transients. Fast opening and closing is gained at the expense of smoothness. When the pressure at the inlet (port 1) reaches the valve setting, the valve starts to open to tank (port 2), throttling flow to limit the pressure rise. These valves have low pressure rise vs. flow and are very fast.
- All 2-port relief cartridges (except pilot reliefs) are physically and functionally interchangeable (same flow path, same cavity for a given frame size).
- 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.
- Main stage orifice is protected by a 150 micron stainless steel screen.
- Not suitable for use in load holding applications due to spool leakage.
- Back pressure on the tank port (port 2) is directly additive to the valve setting at a 1:1 ratio.
- 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-16A |
| Series | 3 |
| Capacity | 100 gpm380 L/min. |
| Factory Pressure Settings Established at | 4 gpm15 L/min. |
| Maximum Operating Pressure | 5000 psi350 bar |
| Response Time - Typical | 2 ms2 ms |
| Maximum Valve Leakage at 110 SUS (24 cSt) | 4 in³/min.@1000 psi65 cc/min.@70 bar |
| Adjustment - Number of Clockwise Turns to Increase Setting | 55 |
| Valve Hex Size | 1 1/4 in.31,8 mm |
| Valve Installation Torque | 150 - 160 lbf ft203 - 217 Nm |
| Adjustment Screw Internal Hex Size | 5/32 in.4 mm |
| Locknut Hex Size | 9/16 in.15 mm |
| Locknut Torque | 80 - 90 lbf in.9 - 10 Nm |
| Model Weight | 1.20 lb0,55 kg |
| Seal kit - Cartridge | Viton: 990-016-006 |
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