SUN HYDRAULICS
RVCAQCN

***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 RVCAQCN (RVCAQCN) is a ventable, pilot-operated, balanced piston relief cartridge valve designed for precise pressure regulation. When the inlet port pressure reaches the preset level, this normally closed valve opens to tank port 2, throttling flow to manage pressure effectively. It features a vent port 3 for remote control via other pilot or 2-way valves. Known for its accuracy and smooth operation, it offers low pressure rise versus flow and moderate speed. A key feature is the remote pilot relief on port 3 that allows control below the valve's own setting. This valve can handle maximum pressure at port 2 and is suitable for cross-port relief circuits, though spool leakage should be considered in such applications. The main stage orifice is safeguarded by a 150-micron stainless steel screen, ensuring durability and reliability. However, it is not recommended for load-holding applications due to spool leakage. Back pressure on tank port 2 adds directly to the valve setting at a 1:1 ratio. For systems using phosphate ester fluids, cartridges with EPDM seals are available; these should not be exposed to petroleum-based substances as they may cause damage. The RVCAQCN incorporates Sun's floating style construction to minimize binding risks from excessive torque or machining variations during installation. It fits into Cavity T-11A Series 1 with a capacity of up to 15 gpm (60 L/min) and operates at a maximum pressure of 5000 psi (350 bar). The control pilot flow ranges from 7 to 10 in\u00b3/min (0.11 to 0.16 L/min), with a typical response time of approximately 10 ms. Maximum leakage at specified conditions is about 2 in\u00b3/min (30 cc/min). The valve's adjustment involves up to five clockwise turns to increase settings and requires specific torques for secure installation and locking mechanisms.