Pilot Relief Valve
hydraulic cartridge valve,Hydraulic pilot relief Valve PRV3
The value prevents flow from 1 to 2 until pressure at 1 exceeds the set crack pressure and opens the pilot section. The pilot flow creates a pressure differential across the spool which causes the value to open allowing flow from 1 or 2 protecting the circuit from over pressurization.
SPECIFICATIONS
Max. Operating Pressure:420Bar
Flow:See PRESSURE DROP VS. FLOW graph.
Internal Leakage:82cc/min. MAX.To 80% of norminal settting
Reseat Pressure: Nominal 85% of crack pressure
[crack(set)pressure at 0.95lpm/0.25gpm]
Spring Ranges:
0.5 to 55 Bar; Preset:47Bar
35 to 140 Bar; Preset:48Bar
70 to 280 Bar; Preset:88Bar
140 to 420 Bar; Preset:140Bar
Temperature:-30 to + 120 degree C
Recommended Filtration:ISO 19/15
Fluids:Mineral-based fluids.
For other fluid compatibility consult factory.
PRV3 dimensions
PRV3 Symbols
Ningbo Yuzhou Hydraulic was founded in 1995, specialized in mobile hydraulic valves and motors, Including hydraulic motors, flow sharing control valve, slewing cushion valve, balance valve, proportional valve, cartridge valve, relief valve, check valve etc, which are widely used in concrete pump machinery, excavators, mobile cranes, forklift, hydraulic winches, drilling equipment, garbage trucks, agricultural/forestry machines, Aerial Work Platforms etc
50000 + M² Factory area,
30+ Senior experts and engineers R&D team
20+ Quality control
60+National Patent and 30 innovation patent
200+ Staff
In 2005 established "Yuzhou hydraulic valves Engineering Center", has more than 30 Senior experts and engineers R&D team, Has developed 7 series of more than 300 kinds of products, and got 60 national patent which 30 innovation patent.
Yuzhou cooperated partner including XCMG, SANY, Zoomlion, LIUGONG, Manitowoc, TEREX, etc.
Yuzhou not only manufacturing for you, but also can design the hydraulic valves or hydraulic system according your demand.
