SUN HYDRAULICS
RVGDLDV

***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 RVGDLDV (RVGDLDV) is a ventable, pilot-operated, balanced piston relief cartridge with an external drain, designed for precise pressure regulation in hydraulic systems. This normally closed valve opens to the tank port when inlet pressure reaches the set threshold, effectively throttling flow to maintain desired pressure levels. The inclusion of a vent port allows for remote control via other pilot or 2-way valves, while the drain port ensures insensitivity to back pressure. Notably accurate and smooth in operation, these valves exhibit low pressure rise relative to flow and are characterized by their quiet performance and moderate speed. The RVGDLDV model can handle maximum pressures at port 2, making it suitable for cross-port relief circuits; however, spool leakage should be considered in such applications. It features a protected main stage orifice with a 150-micron stainless steel screen but is not recommended for load-holding applications due to potential leakage. Pressure at port 4 adds directly to the valve setting at a 1:1 ratio and must not surpass 5000 psi (350 bar). The valve's floating style construction minimizes risks of internal binding from excessive installation torque or machining variations. With a cavity type of T-23A and series 3 capacity of 60 gpm (240 L/min), this valve operates under maximum pressures of up to 5000 psi (350 bar) with control pilot flow ranging from 15-20 in\u00b3/min (0.25-0.33 L/min). Typical response time is around 10 ms, with maximum leakage at specified conditions being 4 in\u00b3/min (65 cc/min). Installation requires specific torque settings for optimal performance: valve hex size is 1\u00bc inches (31.8 mm), requiring torque between 150-160 lbf\u00b7ft (203-217 Nm), while adjustment screw and locknut have their own specifications. The model weighs approximately 1.60 lb (0.70 kg) and utilizes Viton seal kits for reliable sealing performance.