DS-74D
Suitable for a wide range of services conditions.
Application
- Chemical industry
- Process industry
- Pulp and paper industry
- Low solids content and low abrasive media
- Toxic and hazardous media
- Media with poor lubrication properties
- Achesives
View Sheet
Operating Conditions
- Shaft diameter : d1=18...200 mm (0.71” ...7.87”)
- Pressure : p1=25 bar (363 PSI)
- Temperature : t = -50 OC ...220 OC (-58 OF ...428 OF)
- Sliding velocity : vg = 20 m/s (66 ft/s)
- Axial movement :
d1 up to 100 mm : +0.5 mm
d1 from 100 mm : +2.0 mm
*(Depend on combination of materials)
Design Features/Benefits
- For plain shafts
- Dual seal
- Unbalanced
- Rotating multiple springs
- Independent of direction of rotation
- Seal concept based on the DS-7N range
- Variant with pumping screw avaliable
Standard Materials
- Rotary Seal face : Special cast CrMo steel (S), Silicon carbide (Q1, Q2)
- Seat G9 : Silicon carbide (Q1*, Q2*)
- Seat G4 : Silicon carbide (Q1*, Q2*)
- Seat G6 : Silicon carbide (Q1*, Q2*)
- Seat G92 : Carbon graphite antimony impregnated (A), Carbon graphite resin impregnated (B)
* Cannot be combined with seal face made of S
(Other configuration of materials also available on request)
Remarks - Q1 : Seal Face Solid Type
- Q2 : Seal Face Shrink-Fit Type
