SUN HYDRAULICS
RVISCQV

***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 RVISCQV (Material Number: RVISCQV) is a ventable, pilot-operated, balanced-poppet relief cartridge designed for precise pressure regulation. This normally closed valve opens to the tank port when inlet pressure reaches the pre-set level, allowing flow to regulate pressure effectively. It features a vent port for remote control using other pilot or 2-way valves, making it suitable for load-holding applications where zero leak at the vent port is essential. The valve can handle maximum pressure at port 2 and is ideal for cross-port relief circuits. It remains consistent despite variations in oil temperature and contamination, thanks to its robust design including a 150-micron stainless steel screen protecting the main stage orifice. The RVISCQV incorporates Sun's floating style construction to minimize internal binding due to installation torque or machining variations. With a response time of approximately 2 milliseconds and factory pressure settings established at 4 gpm (15 L/min), this valve offers reliable performance with low leakage rates of up to 10 drops/min at reseat. Its design allows back pressure on the tank port to directly affect valve settings at a 1:1 ratio. The valve's capacity reaches up to 120 gpm (480 L/min) with a maximum operating pressure of 5000 psi (350 bar). Installation requires specific torque settings, with an adjustment screw internal hex size of 5/32 inches and locknut torque ranging from 80-90 lbf-in (9-10 Nm). The product weighs approximately 3.10 lb (1.40 kg) and uses Viton seal kits for effective sealing solutions.