Domnick Hunter Limited

David Porter

Brian Lane

A coalescing filter element for removing liquid droplets from a gas stream comprises a wall which is made of a coalescing filtration material and which defines a hollow space within it. An end cap at one end of the element has a port in it through which gas is supplied to the hollow space to flow through the wall of the filtration material. The end cap has a peripheral portion which engages the element wall and a tube which extends into the hollow space defined by the element wall, so that the port in the end cap comprises an inner opening defined by the tube and at least one peripheral opening located between the tube and the peripheral portion of the end cap. The tube extends beyond the peripheral opening(s) so as to deliver gas to a region of the element wall which is remote from the end cap.

Coalescing filter element

A gas dryer comprises a chamber with an inlet and an outlet for a gas which is to be dried by flowing under pressure through the dryer. The chamber is arranged so that the direction of flow of the gas is between its end faces. The location of the inlet and the outlet for gas to be dried are such that, when the chamber is mounted so that the direction of flow of gas between the inlet and the outlet is off the vertical, neither the inlet nor the outlet is arranged centrally at the low point of the chamber. The dryer includes a medium in the chamber for adsorbing liquid entrained with the gas. A drain tube extends from the low point region of the chamber at which liquid can collect when the dryer is mounted for use off the vertical into a depressurization outlet through which gas leaves the chamber when the dryer is depressurized. Liquid which has collected in the low region of the chamber is discharged into the depressurization outlet.

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Newcastle-upon-Tyne, United Kingdom

David Porter