SUN HYDRAULICS
SEQUENCE CART
RSDCKDN
$86.00 USD
- SUN HYDRAULICS
- Material:RSDCKDN
- Model:RSDC-KDN
- Summary:Cartridge
Quantity in stock: 10
***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 RSDCKDN (RSDCKDN) is a pilot-operated, balanced piston sequence valve designed to supply a secondary circuit with flow once the pressure at the inlet port 1 surpasses the valve setting. This valve effectively controls the pressure at port 1 relative to the drain port 3, remaining insensitive to back pressure at port 2 up to the valve setting. It can regulate pressure in place of two-port relief valves when there's pressure in the return line. Notably, all three-port sequence cartridges are interchangeable, ensuring compatibility across similar frame sizes. The pilot flow increases as inlet pressure rises above the valve setting, and a 150-micron stainless steel screen protects the main stage orifice. The maximum allowable pressure at port 3 is directly additive to the valve setting and should not exceed 5000 psi (350 bar). However, this model is not suitable for load-holding applications due to potential spool leakage. The RSDCKDN offers W and Y control options that can be adjusted throughout their full range unless a special setting is specified. Corrosion-resistant versions are available with external stainless steel or zinc-nickel plated components for use in harsh environments. This model incorporates Sun's floating style construction to prevent internal part binding due to excessive torque or machining variations. It features a cavity type T-11A with a flow capacity of 15 gpm (60 L/min) and withstands maximum operating pressures of up to 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 of about 10 ms and maximum leakage rates of 2 in\u00b3/min (30 cc/min) at 110 SUS (24 cSt).
The Sun Hydraulics RSDCKDN (RSDCKDN) is a pilot-operated, balanced piston sequence valve designed to supply a secondary circuit with flow once the pressure at the inlet port 1 surpasses the valve setting. This valve effectively controls the pressure at port 1 relative to the drain port 3, remaining insensitive to back pressure at port 2 up to the valve setting. It can regulate pressure in place of two-port relief valves when there's pressure in the return line. Notably, all three-port sequence cartridges are interchangeable, ensuring compatibility across similar frame sizes. The pilot flow increases as inlet pressure rises above the valve setting, and a 150-micron stainless steel screen protects the main stage orifice. The maximum allowable pressure at port 3 is directly additive to the valve setting and should not exceed 5000 psi (350 bar). However, this model is not suitable for load-holding applications due to potential spool leakage. The RSDCKDN offers W and Y control options that can be adjusted throughout their full range unless a special setting is specified. Corrosion-resistant versions are available with external stainless steel or zinc-nickel plated components for use in harsh environments. This model incorporates Sun's floating style construction to prevent internal part binding due to excessive torque or machining variations. It features a cavity type T-11A with a flow capacity of 15 gpm (60 L/min) and withstands maximum operating pressures of up to 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 of about 10 ms and maximum leakage rates of 2 in\u00b3/min (30 cc/min) at 110 SUS (24 cSt).
Pilot-operated, balanced piston sequence valves will supply a secondary circuit with flow once the pressure at the inlet (port 1) has exceeded the valve setting. The pressure setting of a sequence valve controls the pressure at port 1 relative to the pressure at the drain (port 3). These valves are insensitive to back pressure at port 2 (sequence), 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).
- Not suitable for use in load holding applications due to spool leakage.
- 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.
- Corrosion resistant cartridge valves are intended for use in corrosive environments and are identified by the model code suffix /AP for external stainless steel components, or /LH for external zinc-nickel plated components. See the CONFIGURATION section for all options. For further details, please see the Materials of Construction page located under TECH RESOURCES.
- 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-11A |
| 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 | .30 lb0,15 kg |
| Seal kit - Cartridge | Viton: 990-011-006 |
Show FAQ
Additional Resources
- Sun Offers Zinc-Nickel Plating for Corrosion Resistance
- Sun Cartridges with EPDM Seals
- Sun Expands Corrosion-Resistant Solutions
- QuickDesign with SmartConnect Offers Drag-and-Drop Schematic Tool
- Series 4 PLUS Cartridges Offer Higher Flows with Lower Pressure Losses
- Sequence Valves Technical Tips
- Manufacturing Sun Cartridge Cavities
- Sequence Valves
- Sun Model Code Explanation; 999-901-334
- Cavity Information (S-171) and Tooling
- Cartridges: Materials of Construction
- Fluid and Temperature Recommendations
- Performance Data
- Sun's Floating Style Screw-In Cartridge
- Units of Measure, Settings, and Conversions
Notes:
- For Series 1 cartridges configured with an O control (panel mount handknob), a .75 in. (19 mm) diameter hole is required in the panel.
