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Standard cartridge seals
MA250/MA251

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・Equipped with flushing, quenching, and drainports as standard.
・PTFE backup ring as standard.

Feature

・Cartridge
・Balanced
・Independent of direction of rotation
・Stationary, inside mounted type
・Springs do not contact the liquid

Product specification example

<Materials>
Seal face (MA250) : High density carbon graphite
Seal face (MA251) : Silicon carbide (Q1)
Seat (MA250/MA251) : Silicon carbide (Q1)
Metal parts: CrNiMo steel316 (G)

Secondary seals: FKM (V)

 

<Operating range>
MA250:
Pressure: p = 0 … 16 bar (232 PSI)
Temperature: t = -20 °C … 160 °C (-4 °F … 320 °F) (oil),
0 °C … 60 °C (32 °F … 140 °F) (water)
Sliding velocity: vg = 20 m/s (66 ft/s)
Viscosity: … 0.5 Pa·s
Solids content: … 0.3wt. %

MA251:
Pressure: p = 0 … 16 bar (232 PSI)
Temperature: t = -20 °C … 160 °C (-4 °F … 320 °F) (oil),
0 °C … 60 °C (32 °F … 140 °F) (water)
Sliding velocity: vg = 20 m/s (66 ft/s)
Viscosity: … 1 Pa·s
Solids content: … 7wt. %

 

<Recommended applications>
Process industry
Refining technology
Petrochemical industry
Chemical industry
Pharmaceutical industry
Power plant technology
Pulp and paper industry
Water and waste water technology
Food and beverage industry
Metal production and processing
Acids
Alkaline solutions
Salt solutions
Low viscosity oils
Monomers
Hydrocarbons
Water
Seawater

※Applicable ranges shown in the product introduction are limit values for each standard material.
Applicable ranges, performance data and figures can serve only as a guide for selection and therefore in actual use there will be some cases where general specifications cannot be applied due to unknown factors or constraints. Please check the applicability before use.
The contents are subject to change without notice for improvement.

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Product name:Standard cartridge seals
MA250/MA251

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