The center of gravity of disc is
very close to the axis of rotation, so that the disc can be opened
or closed very quickly without damage to the body, disc or seat.
Since the valve is closed quickly upon flow reversal significant
fluid velocities are not developed in the reverse direction,
therefore minimizing the effects of water hammer.
The tilting disc check valve has
greater stability at low flow rates and in pulsating service when
compared to a swing check valve.
The pressure drop across a
tilting disc check will usually be much less than for an
equivalent life check. Although a tilting disc check valve will
restrict flow slightly more than a swing check, the
straight-through flow path provides a minimal pressure drop.
Tilting disc check valves have
moderate sealing capability and can provide tight shutoff if the
differential pressure across the disc is relatively large.
