PISTON SEAL MA21-NBR

STANDARD SEAL DIMENSIONS

DESCRIPTION

The MA21-NBR is a lip seal in NBR 70 Shore A used in single cylinder and double effect pistons. Created with a rounded dynamic lip which moves even at very low pressure. On the static and dynamic lip, there’re protrusions avoiding any possibility of reversion in the groove, even case of inversion without pressure. There are also notches on the base and on the side avoiding the possibility of seal ejection when, in consequence of micro-leakages, there’s pressure between the two seals.

TECHNICAL DATA

Pressure: < 20 bar Speed: <= 1 m/s Temperature: from - 30° C up to + 100° C Fluids: lubricated air

MATERIAL

Standard material is a compound NBR 70 Shore A. For different applications HNBR, EPDM, FKM and VMQ compounds can be also supplied.

ASSEMBLING

Eliminate sharp edges and protrusions on the piston to avoid, seal damages during the assembling. Grease the seal on the piston before fitting.