A、fault phenomenon: seal leak is serious.
B、reason:
(1) packing element improper material selection;
(2) the friction pair serious wear and tear;
(3) dynamic and static ring inequality;
(4) the friction pair is too large, the static ring burst;
(5) the damage of o-rings.
C、the processing methods:
(1) to explain medium condition for the pump unit, with proper seal;
(2) replace the worn parts, and adjust the spring pressure.
(3) to adjust the seal assembly;
(4) the whole pump remove in static ring, with axis straightness error is less than 0.10, the required seal assembly;
(5) to replace o-rings. |
