M12
Parker Hannifin Corporation
Tube Fittings Division
Columbus, Ohio
http://www.parker.com/tfd
4300
Catalog
Diagnostic, Orifice, Bleed Adapters,
Screen and Specialty Fittings
Dimensions and pressures for reference only, subject to change.
Screen Fittings
Introduction
Parker screen fittings ensure the final measure of protection
against particles that find their way into a system (even a
properly filtrated one) during installation, maintenance, failure
of components or by other means. Screen fittings provide a
vital safeguard for critical components against damage due to
contamination. They are intended to work in conjunction with a
good filtration system and are available with screens that retain
particle sizes from 480 to 65 micron.
Parker screen fittings are ideal for protecting:
•
Gauges and instrumentation
•
Critical hydraulic components such as pump compensator
load sensing controls, proportional valves, relief valves, etc.
•
Precision orifices from clogging
•
Expensive components in test bench circuits (against par-
ticle contamination created by failed components)
Design and Construction
Fitting Body.
Parker screen fittings utilize standard Seal-Lok
O-ring face seal and Triple-Lok 37° fitting bodies located in
Section B and C respectively in this catalog. (Refer to the
“
How to Order” paragraph, later in this section, for a listing of
configurations for screen fittings that are offered as standard).
All screen fittings are manufactured with the micron rating
stamped on the fitting body.
Screen.
Screen fittings are constructed with stainless-steel
screen elements. Sizes -6 through -12 fittings aremanufactured
with a dome-style screen, while size -4 fittings are made with a
basket-style screen (see Fig. M7 and M8). Table M3 displays
the various micron ratings for available screens. Additionally,
Parker screen fittings have bi-directional flow capacity and can
be installed in either the tube or port end of the fitting.
To prevent build up of debris, screens must be replated
or cleaned when filters are replaced or during flushing of
hydraulic system.
Pressure Ratings
Parker screen fittings have the same dynamic pressure ratings
as the equivalent fitting body (without the screen). Refer to sec-
tions A and B for the pressure ratings for Seal-Lok O-ring face
seal and Triple-Lok 37° flare fittings.
How to Order:
Please call theTube Fittings Division for part number and order-
ing - 614-279-7070.
Square
Mesh
Number
Nominal
Micron
Rating
40
480*
60
320*
80
230
100
165*
150
125
200
100
325
65
*
These micron ratings are
not available as standard
from stock
Table M3 — Micron Ratings for
available screens
Fig. M6 — Screen Fittings.
Fig. M7 — Six dome-style screens and one basket-style screen.
Fig. M8 — Fitting cutaway with dome-style
screen.
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