SUN HYDRAULICS
RVBALNV

***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 RVBALNV (Material Number: RVBALNV) is a ventable, pilot-operated, balanced piston relief cartridge designed for precise pressure regulation. This normally closed valve begins to open to the tank port when the inlet pressure reaches the set point, effectively throttling flow to maintain desired pressure levels. It features a vent port that allows for remote control through other pilot or two-way valves, ensuring versatile application possibilities. The valve is known for its accuracy and low-pressure rise versus flow, offering smooth and quiet operation with moderate response speed. Designed for use in cross-port relief circuits, the RVBALNV can handle maximum pressure at port 2 but requires consideration of spool leakage in such applications. The minimum adjustable setting is 75 psi (5 bar) across all spring ranges, and it is not suitable for load-holding applications due to potential leakage. Notably, any back pressure on the tank port directly adds to the valve setting at a 1:1 ratio. The main stage orifice is contamination-protected and incorporates Sun's floating style construction to minimize binding risks from excessive torque or machining variations. The valve has a capacity of 7.5 gpm (30 L/min) and operates at a maximum pressure of 5000 psi (350 bar). Its typical response time is approximately 10 ms with a control pilot flow between 7-10 in\u00b3/min (0.11-0.16 L/min). Installation requires specific torque settings: valve installation torque ranges from 20-25 lbf ft (27-33 Nm), with locknut torque set between 80-90 lbf in (9-10 Nm). The model weighs approximately .30 lb (.15 kg), and it uses Viton seals available under seal kit number 990163006.