SUN HYDRAULICS
RELIEF CART
RVCDLCN
$122.00
- SUN HYDRAULICS
- Material:RVCDLCN
- Model:RVCD-LCN
- Summary:Cartridge
Quantity in stock: 5
***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 RVCDLCN (RVCDLCN) is a ventable, pilot-operated, balanced piston relief cartridge with an external drain designed for precise pressure regulation. This normally closed valve opens to tank port 2 when the inlet pressure at port 1 reaches the set threshold, allowing for controlled flow throttling. It features a vent port (port 3) for remote control via other pilot or 2-way valves and a drain port (port 4) that ensures insensitivity to back pressure. The valve is known for its accuracy, low pressure rise versus flow, and smooth operation. It is capable of accepting maximum pressure at port 2 and can be used in cross-port relief circuits, although spool leakage should be considered in these applications. The main stage orifice is safeguarded by a 150-micron stainless steel screen. However, it is not recommended for load-holding applications due to potential spool leakage. The pressure at port 4 directly adds to the valve setting at a 1:1 ratio, with an upper limit of 5000 psi (350 bar). Cartridges with EPDM seals are suited for systems using phosphate ester fluids but are vulnerable to damage from petroleum-based substances. The valve incorporates Sun's floating style construction to reduce internal part binding risks due to installation torque or machining variations. It has a capacity of 15 gpm (60 L/min) and operates at a maximum pressure of 5000 psi (350 bar). The control pilot flow ranges from 7-10 in\u00b3/min (0.11-0.16 L/min), with typical response times around 10 ms. Maximum valve leakage is specified as 2 in\u00b3/min at 1000 psi (30 cc/min at 70 bar). The adjustment involves up to five clockwise turns for increased settings, with specific hex sizes and torque values provided for installation and adjustments. The model weighs approximately .40 lb (.20 kg), with Viton seal kits available under part number 990021006.
The Sun Hydraulics RVCDLCN (RVCDLCN) is a ventable, pilot-operated, balanced piston relief cartridge with an external drain designed for precise pressure regulation. This normally closed valve opens to tank port 2 when the inlet pressure at port 1 reaches the set threshold, allowing for controlled flow throttling. It features a vent port (port 3) for remote control via other pilot or 2-way valves and a drain port (port 4) that ensures insensitivity to back pressure. The valve is known for its accuracy, low pressure rise versus flow, and smooth operation. It is capable of accepting maximum pressure at port 2 and can be used in cross-port relief circuits, although spool leakage should be considered in these applications. The main stage orifice is safeguarded by a 150-micron stainless steel screen. However, it is not recommended for load-holding applications due to potential spool leakage. The pressure at port 4 directly adds to the valve setting at a 1:1 ratio, with an upper limit of 5000 psi (350 bar). Cartridges with EPDM seals are suited for systems using phosphate ester fluids but are vulnerable to damage from petroleum-based substances. The valve incorporates Sun's floating style construction to reduce internal part binding risks due to installation torque or machining variations. It has a capacity of 15 gpm (60 L/min) and operates at a maximum pressure of 5000 psi (350 bar). The control pilot flow ranges from 7-10 in\u00b3/min (0.11-0.16 L/min), with typical response times around 10 ms. Maximum valve leakage is specified as 2 in\u00b3/min at 1000 psi (30 cc/min at 70 bar). The adjustment involves up to five clockwise turns for increased settings, with specific hex sizes and torque values provided for installation and adjustments. The model weighs approximately .40 lb (.20 kg), with Viton seal kits available under part number 990021006.
Ventable, pilot-operated, balanced piston relief cartridges with external drain are normally closed pressure regulating valves. When the pressure at the inlet (port 1) reaches the valve setting, the valve starts to open to tank (port 2), throttling flow to regulate the pressure. They provide a vent port (port 3) that connects between the main piston and pilot stage to provide for remote control by other pilot or 2-way valves and a drain (port 4) that makes them insensitive to back pressure. These valves are accurate, have low pressure rise vs. flow, they are smooth and quiet, and are moderately fast.
- A remote pilot relief on port 3 (vent) will control the valve below its own setting.
- 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.
- Pressure at port 4 is directly additive to the valve setting at a 1:1 ratio and should not exceed 5000 psi (350 bar).
- Cartridges configured with EPDM seals are for use in systems with phosphate ester fluids. Exposure to petroleum based fluids, greases and lubricants will damage the seals.
- W and Y controls (where applicable) can be specified with or without a special setting. When no special setting is specified, the valve is adjustable throughout its full range using the W or Y control. When a special setting is specified, this setting represents the maximum setting of the valve.
- 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-21A |
| Series | 1 |
| Capacity | 15 gpm60 L/min. |
| Factory Pressure Settings Established at | 4 gpm15 L/min. |
| Maximum Operating Pressure | 5000 psi350 bar |
| Control Pilot Flow | 7 - 10 in³/min.0,11 - 0,16 L/min. |
| Response Time - Typical | 10 ms10 ms |
| Maximum Valve Leakage at 110 SUS (24 cSt) | 2 in³/min.@1000 psi30 cc/min.@70 bar |
| Adjustment - Number of Clockwise Turns to Increase Setting | 55 |
| Valve Hex Size | 7/8 in.22,2 mm |
| Valve Installation Torque | 30 - 35 lbf ft41 - 47 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 | .40 lb0,20 kg |
| Seal kit - Cartridge | Viton: 990-021-006 |
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- Fluid and Temperature Recommendations
- Performance Data
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- Units of Measure, Settings, and Conversions
