Designation pilot--operated check valve
Design dual poppet / seat construction
Mounting method modular mounting design (sandwich)
Size ISO 4401 size 03 interface, nominal 6 mm
Weight kg 1,20
Mounting attitude unrestricted, but see symbol plate
Flow direction see symbols
Operating pressure range in P, A, B and T bar ... 350
Cracking pressure (approx.) bar 1,3, see ?p--Q curve
Area ratio 1:6
Flow rate, Qmax l/min 60, see ?p--Q curves
Fluids HL and HLP hydraulic oils to DIN 51 524;
for other fluids, please consult BUCHER
Fluid temperature range _C --25 ... +80
Ambient temperature _C --25 ... +80
Viscosity range mm2/s (cSt) 10 ... 650, recommended 15 ... 250
Minimum fluid cleanliness level 18/14 to ISO 4406 / CETOP RP70H; 8 ... 9 to NAS 1638
