The Vulcan Seals Type 93B 22mm Alfa Laval® is a unique design of 'O'-Ring rotary seal with an externally mounted threaded gasket mounted stationary, to suit the seal chambers of Alfa Laval® GM® series centrifugal pumps.
The Vulcan Seals Type 93B 22mm Alfa Laval® is a direct replacement seal design and is available in a range of material combinations, including fully FDA/EC1935 compliant grade materials.
Please see further Vulcan Seals Type 91, Vulcan Seals Type 92, and Vulcan Seals Type 93 datasheets for our full range of seals to suit Alfa Laval® centrifugal pumps.
Technical Data Sheet
The Vulcan Seals Type 93B 22mm Alfa Laval® is a unique design of 'O'-Ring rotary seal with an externally mounted threaded gasket mounted stationary, to suit the seal chambers of Alfa Laval® GM® series centrifugal pumps.
The Vulcan Seals Type 93B 22mm Alfa Laval® is a direct replacement seal design and is available in a range of material combinations, including fully FDA/EC1935 compliant grade materials.
Please see further Vulcan Seals Type 91, Vulcan Seals Type 92, and Vulcan Seals Type 93 datasheets for our full range of seals to suit Alfa Laval® centrifugal pumps.
The Vulcan Seals Type 93B 22mm Alfa Laval® is a direct replacement design to suit the original equipment, produced to Vulcan Seals’ manufacturing standards.
304 Stainless Steel | VCP1 Carbon | P |
Nitrile | -30°C | +120°C |
The PV chart shows the maximum operating pressuresof this Vulcan seal type based on the seal face materialsused. Different lines on the chart indicate different materialcombinations, as shown underneath.
It also assumes stable operation in a clean, cool, lubricatingand non-volatile fluid with an adequate flush rate.
For more in-depth pressure rating calculations based onspecific material combinations and application conditions,please consult us.
Stainless Steel vs Carbon | x 0.30 |
A. Shaft size: 1” therefore pressure is 12 bar (from PV chart)
B. Media: Water (multiplier = 0.85)
C. Temperature: 50°C (multiplier = 1.00)
D. Speed: 1450 rpm (multiplier = 1.00)E. Face combination: Stainless Steel vs Carbon (multiplier = 0.30)
For this particular Type 12 seal size, the calculation for the approximate guidance maximum operating pressure would be:
A x B x C x D x E12 bar x 0.85 x 1.00 x 1.00 x 0.30 = 3.06 bar
Please note that due to the many operational andapplication variables that affect seal performance, theinformation given on this page is for guidance only.
We therefore strongly recommend careful individualtesting and monitoring of all seals and related equipmentfor any proposed application.Our policy is one of continuous technical and efficiencyimprovement.
As such, all specifications may be subjectto change without prior notice.