Model YS Y Strainers made
of PVC, CPVC and Clear PVC
Y strainers are designed for protecting equipment
downstream from particulate generated from an upset
condition or circumstance where the particulate
concentration is very low because the straining
ratio is only 2:1. We've written an article
explaining the key
differences between Y and simplex (basket) style
strainers which will describe the design
limitations of Y strainers in more detail.
Y strainers are available in
materials and can be installed horizontally or
vertically if the flow is downwards. The hex
chamber cap is easily removed to access the screen
for cleaning or replacement.
to the traditional one-piece Y strainer, they are also
available with a true-union connection design. The
true-union design simplifies installation
as well as enabling strainer replacement without cutting
and replacing piping; perhaps especially useful for
socket glued piping connections. We have a webpage
The only elastomers used are captured o-rings for the
screen sealing and, for the true-union design, the true-union
connectors. The o-ring materials are
The standard strainer screen has 1/32" perforations
made from the same material as the strainer body.
Additional perforations are available and may be
substituted for no additional cost. It is also
possible to order stainless steel screens and mesh
lined screens for an additional cost.
One frequently asked question is:
strainers schedule 40 or 80? The answer
is "neither" because that terminology
is used to describe the uniform wall thickness of piping
and since these are molded products having varying wall
thicknesses, they cannot have a specific "schedule"
assigned to them. What you need to refer to is the rated
pressure by temperature chart to make sure that your
application falls within the limits of the strainer
material chosen. Each Y strainer page has links to
the catalog pages and the pressure/temperature chart.
Other significant aspects to consider include:
Never use plastic strainers for compressible
fluids such as air or nitrogen.
||The maximum fluid velocity should not exceed 5-8
FPS and our sizing calculators
use 5 FPS as the design standard.
It's critical to
review your pressure
limitations for your fluid temperature
and reduce potential
Y strainers are used for liquids or environments that are
aggressive to alloy strainers and are designed to be
installed within non-alloy piping systems. If you intend to
install a plastic strainer within an alloy piping system it
is recommended that you install at least 10 pipe diameters
of plastic piping upstream and downstream of the strainer to
help account for differences in thermal expansion rates of
metal and plastic, transmittal of pipe vibration and loading
forces. Connecting plastic strainers directly with
metal piping can potentially damage the strainer.
When in-doubt, simply call us or better yet,
fill-out our application based inquiry form and
we'll assist you with the proper selection.