PURPOSE
• machine is designed for lapping (polishing) of the flat sealing surfaces of the gate valve wedges, valve spools, and сhristmas-tree wedges;
• special-configuration is used for lapping the end-seal rings.
TYPES OF MACHINED PARTS
• wedges of the gate and christmas-tree valves;
• valve (global valve) spools;
• end-seal rings of the pumps;
• other flat-surface parts.
ADVANTEGES
■ Each point of the lapped surface of the parts makes complex plane-parallel motion on the lapping-plate surface.
■ The machines are equipped with the polishing-compound supply device.
■ The spent compound is collected in a special tank.
■ The lapping time is automatically controlled by the timer.
■ The machines are equipped with the smooth start device with the lapping-plate speed adjustment.
■ The machines are designed so that the lapping disc can be adjusted during its operation.