SUN HYDRAULICS
RSJCKWV

***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 RSJCKWV (RSJCKWV) is a pilot-operated, balanced piston sequence valve designed to supply a secondary circuit with flow once the inlet port 1 pressure surpasses the valve setting. This sequence valve manages the pressure at port 1 in relation to the drain port 3, remaining unaffected by back pressure at port 2 up to the valve setting. It can regulate pressure in place of two-port relief valves if there is return line pressure. All three-port sequence cartridges share physical and functional interchangeability, ensuring consistent flow paths and cavity compatibility for specific frame sizes. The valve features a main stage orifice protected by a 150-micron stainless steel screen, with port 3 pressure directly adding to the valve setting at a 1:1 ratio, not exceeding 5000 psi (350 bar). It's unsuitable for load-holding applications due to spool leakage. The RSJCKWV incorporates Sun's floating style construction to minimize internal part binding risks from excessive installation torque or cavity/cartridge machining variations. It offers an adjustable range using W or Y controls unless specified otherwise for maximum settings. The cartridge fits Cavity T-19A, Series 4, with a capacity of 120 gpm (480 L/min) and factory pressure settings established at 4 gpm (15 L/min). It operates at a maximum pressure of 5000 psi (350 bar) with control pilot flow between 15-20 in\u00b3/min (0.25-0.33 L/min) and typical response time around 10 ms. Maximum valve leakage is rated at five in\u00b3/min at 110 SUS (24 cSt) under conditions of up to 1000 psi (70 bar). Installation requires specific torque settings: Valve Hex Size is 1-5/8 in (41.3 mm), Valve Installation Torque between 350-375 lbf\u00b7ft (474-508 Nm), Adjustment Screw Internal Hex Size of 5/32 in (4 mm), Locknut Hex Size of 9/16 in (15 mm), and Locknut Torque between 80-90 lbf\u00b7in (9-10 Nm). The model weighs approximately 3.10 lb (1.40 kg) and uses Viton seal kits like part number: 990019006 for maintenance needs.