FITTINGLESS PNEUMATIC MULTIPORT SELECTOR VALVE FOR ANALYTIC INSTRUMENTS

摘要

A pneumatic multiport selector valve and analytic instrument employing said valve are provided. The valve includes a base having a mounting surface configured to mount to the analytic instrument. The mounting surface has a plurality of apertures therein for coupling to flow conduits of the analytic instrument. At least one piston plate has a number of apertures therethrough. The apertures are configured to slidably receive respective pistons. Pistons are disposed in respective apertures of the at least one piston plate. A cushion layer is disposed between the at least one piston plate and the base. The cushion layer has a plurality of apertures to allow actuation gas therethrough. A plate clamps the at least one piston plate to the base.

主权项

1. A pneumatic multiport selector valve comprising:
a base having a mounting surface configured to mount to an analytic instrument, the mounting surface having a plurality of apertures therein for coupling to flow conduits of the analytic instrument; at least one piston plate having a number of apertures therethrough, the apertures being configured to slidably receive respective pistons; a plurality of pistons disposed in respective apertures of the at least one piston plate; a cushion layer disposed between the at least one piston plate and the base, the cushion layer having a plurality of apertures to allow actuation gas therethrough; and a plate clamping the at least one piston plate to the base.