SUN HYDRAULICS
RSHCLBV

***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 RSHCLBV (RSHCLBV) is a pilot-operated, balanced piston sequence valve designed to supply a secondary circuit with flow once the inlet port 1 pressure exceeds the valve setting. It regulates pressure at port 1 relative to the drain port 3 and remains unaffected by back pressure at port 2 up to the valve setting, making it suitable for regulating pressure instead of using two-port relief valves when there is return line pressure. These three-port sequence cartridges are interchangeable in terms of flow path and cavity for a given frame size. The valve's pilot flow increases as the inlet pressure rises above the setting, with a main stage orifice protected by a 150-micron stainless steel screen. The maximum allowable pressure at port 3 is additive to the valve setting at a 1:1 ratio and should not exceed 5000 psi (350 bar). Note that this valve is not suitable for load-holding applications due to spool leakage. The RSHCLBV incorporates Sun's floating style construction to minimize internal binding due to excessive installation torque or machining variations. It features an adjustable range using W or Y controls unless specified otherwise, with factory pressure settings established at 4 gpm (15 L/min). The maximum operating pressure is 5000 psi (350 bar), with control pilot flow between 15-20 in\u00b3/min (0.25-0.33 L/min) and typical response time of 10 ms. Maximum valve leakage is specified as 4 in\u00b3/min at 110 SUS (24 cSt) under conditions of 1000 psi (70 bar). The adjustment screw has an internal hex size of 5/32 in., while the locknut hex size is 9/16 in., requiring torque between 80-90 lbf-in (9-10 Nm). The model weighs approximately 1.50 lb (0.70 kg) and includes a Viton seal kit option with part number: V990017006.