Cla-Val X43H - Manual

Note: When ordering parts always refer to the catalog number and
stock number on the valve nameplate.
MODEL
INSTALLATION / OPERATION / MAINTENANCE
X43H
INTRODUCTION
When ordering wire cloth, mesh size and wire diameter are critical
dimensions.
MESH SIZE
Mesh size can be indicated by three different terms: Distance Between
Wires, Mesh per Inch, and Space Size.
THE DISTANCE BETWEEN WIRES
The Distance Between Wires dimension is the distance between adja-
cent wires, measuring from the center of both wires. The Mesh per
Inch dimension is the number of openings within an inch of the wire
cloth. This dimension is expressed as two numbers, such as 3 x 3,
which means there are three openings horizontally and three openings
vertically in one inch.
THE SPACE SIZE DIMENSION
The Space Size dimension, also known as clear opening, is the actu-
al open space between adjacent wires. This term is unique to space
cloth.
WIRE DIAMETER
Wire diameter indicates the thickness of the wire. As the wire gets thin-
ner, the opening width and open area dimensions get larger within wire
cloth of the same mesh size. For example, 2 x 2 mesh size with 0.120"
wire diameter has 57.8% open area, compared to 2 x 2 mesh with thin-
ner 0.047" wire diameter, which has 82.1% open area. Also, as the
wire diameter decreases, wire flexibility increases.
MESH
Mesh designates the number of openings and fractional parts of an
opening, per lineal inch. Mesh is determined by counting the number
of openings from the center of any wire to the center of a parallel wire,
one inch in distance. When the point one inch distant from the center
of a wire falls between wires within an opening, the mesh count is
expressed as a fraction.
Wire cloth is offered in six different styles to meet the demands of
your particular requirements. For more information about each style,
please contact a Cla-Val Regional Sales Office.
Strainer Wire Cloth Mesh Information continued on back page
H Style Strainer
The Cla-Val Model X43H H-Style Strainer offers an effective means of
removing unwanted solid particles in pipeline flow. These strainers are
ideal for preventing fouling, and debris and particle buildup in Cla-Val
Automatic Control Valves. The large flow area design, with a flat stain-
less steel strainer mesh perpendicular to flow, is ideal for low pressure
drop applications.
Maintenance
The Cla-Val Model X43H is fast and easy to maintain with the compact
H-pattern, requiring service without removal from line. Routine mainte-
nance requires only removal of the top cover and removing unwanted
solid particles and debris from valve and wire cloth mesh strainer. The
strainer may be installed in any position, however, installation with cover
up is recommended.