SUN HYDRAULICS
RVIDCWN

***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 RVIDCWN (RVIDCWN) is a ventable, pilot-operated, balanced piston relief cartridge with an external drain, designed as a normally closed pressure regulating valve. This valve becomes active when the inlet port 1 pressure reaches the set threshold, opening to tank port 2 to regulate flow and maintain pressure. It features a vent port 3 for remote control and a drain port 4 that ensures insensitivity to back pressure. Known for their accuracy, these valves exhibit low pressure rise versus flow and operate smoothly and quietly with moderate speed. They are suitable for use in cross-port relief circuits but not recommended for load holding applications due to spool leakage. The main stage orifice is protected by a 150-micron stainless steel screen, ensuring durability and reliability. This cartridge can handle maximum pressures at port 2 and is configured with EPDM seals for systems using phosphate ester fluids; however, exposure to petroleum-based fluids can damage these seals. The valve incorporates Sun's floating style construction to minimize internal part binding due to installation torque or machining variations. It fits into a Cavity T-24A Series 4 with a capacity of up to 120 gpm (480 L/min) and operates under a maximum pressure of 5000 psi (350 bar). Control pilot flow ranges from 15-20 in\u00b3/min (0.25-0.33 L/min), with typical response times around 10 ms. Maximum valve leakage at 110 SUS (24 cSt) is approximately 5 in\u00b3/min at 1000 psi (80 cc/min at 70 bar). Adjustment settings are made via an internal hex screw, offering precise control over performance parameters. The model weighs approximately 3.10 lb (1.40 kg), making it a robust yet manageable component in hydraulic systems requiring reliable pressure regulation capabilities.