Shaft diameter:
d1 = 25 … 100 mm (1.000″ … 4.000″)
Other sizes on request
Temperature:
t= -40 °C … 220 °C (-40 °F … 428 °F)
(Check O-Ring resistance)Sliding face material combination BQ1
Pressure: p1 = 25 bar (363 PSI)
Sliding velocity: vg = 16 m/s (52 ft/s)
Sliding face material combination Q1Q1 or U2Q1
Pressure: p1 = 20 bar (290 PSI)
Sliding velocity: vg = 10 m/s (33 ft/s)
Barrier fluid circulation system:
p3max = 25 bar (363 PSI)
Δp (p3 – p1)ideal = 2 … 3 bar (29 … 44 PSI),
7 bar (102 PSI) for barrier media with poor lubricating properties)
Pump startup:
Δp (p3 – p1)max = 25 bar (363 PSI) allowed
Recommended supply medium:
max. ISO VG 5
Axial movement:
±1.0 mm, d1 ≥75 mm ±1.5 mm
