SUN HYDRAULICS
PVFBKBV

***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 PVFBKBV (PVFBKBV) is a ventable, pilot-operated pressure reducing/relieving valve designed to maintain a constant reduced pressure at port 1, while offering a full-flow relief function from port 1 to tank port 3. This model features a vent port (port 4), which enables remote control by pilot or two-way valves. The valve's pressure setting can be influenced by the pressure at port 3, which adds directly to the valve setting at a 1:1 ratio, with a maximum allowable pressure of 3000 psi (210 bar). It's recommended that the maximum inlet pressure aligns with the adjustment range: ranges D, E, N, and Q are tested with up to 2000 psi (140 bar) differential; ranges A, B, and H allow for up to 3000 psi (210 bar); while ranges C and W accommodate up to 5000 psi (350 bar). The valve exhibits low deadband transition between reducing and relieving modes and is noted for its stable performance with low hysteresis. It employs Sun's floating style construction to minimize internal part binding due to installation torque or machining variations. The PVFBKBV has a cavity size of T-22A Series 2 with a capacity of up to 20 gpm (80 L/min), and its factory pressure settings are established at blocked control ports. With an operating pressure limit of 5000 psi (350 bar) and control pilot flow rate between 10-15 in\u00b3/min (0.16-0.25 L/min), it provides reliable performance in hydraulic systems requiring precise pressure regulation. This model also includes features like reverse flow capability from reduced pressure port back to inlet port under specific conditions, emphasizing the need for an additional check valve if reverse free flow is required in the circuit design.