SUN HYDRAULICS
RPISCAV
$229.84 USD
- SUN HYDRAULICS
- Material:RPISCAV
- Model:RPIS-CAV
- 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 RPISCAV (Material Number: RPISCAV) is a pilot-operated, balanced-poppet relief cartridge designed for precise pressure regulation in hydraulic systems. This normally closed valve opens to the tank port 2 when the inlet port 1 pressure reaches the set point, effectively throttling flow to maintain desired pressure levels. Notable for its accuracy and smooth operation, this valve minimizes noise and manifold erosion due to cavitation, thanks to its internal modulation capabilities. It can handle maximum pressure at port 2 and is suitable for cross-port relief circuits and load-holding applications. The valve's performance remains consistent despite varying oil temperatures or contamination, aided by a main stage orifice protected by a 150-micron stainless steel screen. The RPISCAV model incorporates Sun's floating style construction, reducing risks of internal binding from installation torque or machining variations. It features a cavity T-16A series with a capacity of 100 gpm (380 L/min) and operates at pressures up to 5000 psi (350 bar). The typical response time is approximately 7 milliseconds, with minimal leakage at reseat conditions. Adjustable using W or Y controls, users can specify settings within the valve's full range unless a special setting is designated as the maximum limit. This corrosion-resistant cartridge is available with external stainless steel components (suffix AP) or zinc-nickel plating (suffix LH), making it ideal for corrosive environments. Installation requires specific torque values: valve hex size of 1-1/4 inches (31.8 mm), adjustment screw internal hex size of 5/32 inches (4 mm), locknut hex size of 9/16 inches (15 mm), and locknut torque between 80-90 lbf-in (9-10 Nm). The model weighs approximately 1.25 lb (0.60 kg) and uses Viton seal kits identified as part number 990316006.
The Sun Hydraulics RPISCAV (Material Number: RPISCAV) is a pilot-operated, balanced-poppet relief cartridge designed for precise pressure regulation in hydraulic systems. This normally closed valve opens to the tank port 2 when the inlet port 1 pressure reaches the set point, effectively throttling flow to maintain desired pressure levels. Notable for its accuracy and smooth operation, this valve minimizes noise and manifold erosion due to cavitation, thanks to its internal modulation capabilities. It can handle maximum pressure at port 2 and is suitable for cross-port relief circuits and load-holding applications. The valve's performance remains consistent despite varying oil temperatures or contamination, aided by a main stage orifice protected by a 150-micron stainless steel screen. The RPISCAV model incorporates Sun's floating style construction, reducing risks of internal binding from installation torque or machining variations. It features a cavity T-16A series with a capacity of 100 gpm (380 L/min) and operates at pressures up to 5000 psi (350 bar). The typical response time is approximately 7 milliseconds, with minimal leakage at reseat conditions. Adjustable using W or Y controls, users can specify settings within the valve's full range unless a special setting is designated as the maximum limit. This corrosion-resistant cartridge is available with external stainless steel components (suffix AP) or zinc-nickel plating (suffix LH), making it ideal for corrosive environments. Installation requires specific torque values: valve hex size of 1-1/4 inches (31.8 mm), adjustment screw internal hex size of 5/32 inches (4 mm), locknut hex size of 9/16 inches (15 mm), and locknut torque between 80-90 lbf-in (9-10 Nm). The model weighs approximately 1.25 lb (0.60 kg) and uses Viton seal kits identified as part number 990316006.
Pilot-operated, balanced-poppet relief cartridges 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. These valves are accurate, smooth, quiet, fast, and have low pressure rise vs. flow.
- Because the modulating occurs inside the cartridge, these valves are immune to most of the problems associated with cavitation, namely noise and manifold erosion.
- Will accept maximum pressure at port 2; suitable for use in cross port relief circuits.
- Valve is relatively insensitive to varying oil temperatures and oil borne contamination.
- Main stage orifice is protected by a 150 micron stainless steel screen.
- Suitable for use in load holding applications.
- Back pressure on the tank port (port 2) is directly additive to the valve setting at a 1:1 ratio.
- 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-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 | 7 ms7 ms |
| Maximum Valve Leakage at Reseat | 10 drops/min.0,7 cc/min. |
| 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 | 1.25 lb0,60 kg |
| Seal kit - Cartridge | Viton: 990-316-006 |
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Additional Resources
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- Pressure Relief and Regulating Cartridge Valve Technical Tips
- Pilot Operated, Balanced Poppet Relief Valves
- Sun Expands Corrosion-Resistant Solutions
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- Manufacturing Sun Cartridge Cavities
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- Cavity Information (S-171) and Tooling
- Sun Model Code Explanation; 999-901-334
- Cartridges: Materials of Construction
- Fluid and Temperature Recommendations
- Performance Data
- Sun's Floating Style Screw-In Cartridge
- Units of Measure, Settings, and Conversions