文档介绍：BCY Proportional cartridge relief valve
The BCY model, a cartridge type proportional relief valve, controls the pressure according to the value of electrical signal input. With a quick response time and good dynamic performances, it is
widely used in injection molding machines, blowing machines, die-casting machines and equipment in steel works.
Technical specification
Model 25 32 40 50
Working pressure (Mpa) 8,16,25,
Maximum flow (l/min) 400 750 1000 2000
Hysteresis (%) < ±
Repeatability (%) < ±2
Rated current (mA) 800
Filtration accurancy (um) ≤20
Hydraulic fluid Mineral Oil, Phosphate-ester
Viscosity (mm2/s) ~100
Fluid temp(0C) -20~70
Model instruction
Code symbol
Output pressure/input current curves
Note: In order to get the lowest settable pressure,pilot current is not more than
Working Pressure in relation to flow
Outside size
BCY-25 BCY-32 BCY-40 BCY-50
Model A B C D E Fixing screw
BCY-25 85 40 80 4-M8
BCY-32 102 50 80 176 4-M16
BCY-40 125 60 80 4-M20
BCY-50 140 68 80 196 4-M20
Mounting size
Cover installation surface and valve s