BRV1
Bi-directional Relief Valve
OPERATION
The value is a direct-acting, dual cross-over relief valve in a single cartridge format. When pressure at either port exceeds the nominal setting value, flow will be transmitted to the opposite port. Back pressure at either port will affect the nominal setting of the opposite port on a 1:1 basis.
For correlation purposes,pre-set value will be measured at port 2.
Pressure at port 1 will not exceed ± 150 psi from the port 2 value.
SPECIFICATIONS
Operating Pressure:240Bar
Adjustable Pressure Range:14 to168 bar;160-210 bar;
Pressure is set at port 2
Reseat Pressure: 85% of crack pressure
(crack pressure at 0.95 lpm/0.25 gpm)
Flow:see performance chart
Maximum Difference for Crack Pressure in Both Directions:
10.5 bar (150psi)
Maximum Internal Leakage:
When reseat to 85% of crack pressure:33 ml/minute
Temperature:-30+ 120 degree C
Recommended Filtration:ISO 19/15
Fluids:Mineral-based fluids.
For other fluid compatibility consult factory.
BRV1 function
BRV1 outline drawing
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.
