A valve lapping system includes an electric motor at least partially enclosed in a housing; a hollow core coupled to the housing and including a threaded outer surface; a traveling block that includes a hub configured to thread onto the threaded outer surface of the hollow core and a plurality of arms that extend from the hub, with each arm including a channel configured to receive a portion of a valve; a threaded rod that extends through the hollow core and couples to the electric motor; and a bracket coupled to the threaded rod and including an opening sized to receive a lapping block that includes an abrasive surface configured to modify a sealing surface of the valve. The bracket and lapping block are configured to rotate or oscillate, in combination, based on operation of the electric motor to rotate or oscillate the threaded rod.

A valve seat processing machine (1) configured to process a valve seat (118) in a valve device (101) including a valve body portion (110) which forms a flow passage of fluid and a valve drive portion (120) which drives a valve element (124) capable of tightly engaging with the valve seat (118) in the valve body portion (110) includes: a base portion (10) attached to the valve body portion (110); a main body portion (20) movable relative to the base portion (10) in two different axial directions; a support portion (30) movable relative to the main body portion (20) in a drive direction of the valve element (124); a main spindle (40) rotatable relative to the support portion (30) about an axis parallel to the drive direction of the valve element (124); and a tool holder (50) configured to hold a tool (T) for processing the valve seat (118).

A valve lapping system includes an electric motor at least partially enclosed in a housing; a hollow core coupled to the housing and including a threaded outer surface; a traveling block that includes a hub configured to thread onto the threaded outer surface of the hollow core and a plurality of arms that extend from the hub, with each arm including a channel configured to receive a portion of a valve; a threaded rod that extends through the hollow core and couples to the electric motor; and a bracket coupled to the threaded rod and including an opening sized to receive a lapping block that includes an abrasive surface configured to modify a sealing surface of the valve. The bracket and lapping block are configured to rotate or oscillate, in combination, based on operation of the electric motor to rotate or oscillate the threaded rod.

A valve lapping system includes an electric motor at least partially enclosed in a housing; a hollow core coupled to the housing and including a threaded outer surface; a traveling block that includes a hub configured to thread onto the threaded outer surface of the hollow core and a plurality of arms that extend from the hub, with each arm including a channel configured to receive a portion of a valve; a threaded rod that extends through the hollow core and couples to the electric motor; and a bracket coupled to the threaded rod and including an opening sized to receive a lapping block that includes an abrasive surface configured to modify a sealing surface of the valve. The bracket and lapping block are configured to rotate or oscillate, in combination, based on operation of the electric motor to rotate or oscillate the threaded rod.