Tube Diameter: 3/8"
OD to 12.5 " OD
Nominal Pore Sizes: 0.5
to 200 microns
Filter Surface Area (based
on 2.75" OD cylinder):
10": .54 sq.
20": 1.08 sq. ft.
30": 1.62 sq. ft.
40": 2.16 sq. ft.
Wall Thickness: standard
3 mm thickness provides a collapse pressure of 160 psid for a 2.5" OD
tube, and a
burst pressure of 390 psid. Maximum collapse and burst values increase as
the tube OD decreases.
Production and Materials:
All ingot metallurgical materials can be
produced as powder.
Shape, size and distribution of the powder
particles are important parameters which effect the properties of high
porosity sintered components. Besides permeability , grade efficiency and
mechanical strength, the corrosion resistance is often of prime importance
for the field of application.
Porous metal filter
elements can be manufactured in a
wide variety of materials depending on the requirement. The most important
materials are stainless steel alloys as well as Nickel, Titanium, Monel,
Inconel, Hastelloy and other special materials.
These sintered metal elements are produced
by cold isostatic pressing. For the compaction process the metal powder is
filled into the compacting tool of combined steel and elastic material. By
use of all around effective pressure build-up in a liquid, uniform
porosity in the press part will be obtained and thereby homogeneous,
physical characteristic properties will be guaranteed over the total part.
By this processing method the manufacture
of seamless filter elements up to 1200 mm length and 320 mm diameter by
differential wall thicknesses is possible. The isostatic pressing allows
simultaneous compaction of flanges and threads. Thereby the mounting of
such porous filter cartridges and filter tubes in the filter apparatus is very
much simplified. A characteristic of the isostatic technique, as opposed
to other manufacturing technologies is that smaller quantities can also be
See cleaning porous filter cartridges