Emerson Yarway Manual

YARWAY INSTALLING AND SERVICING STRAINERS
InstallatIon, operatIon and maIntenance InstructIons
Emerson.com/FinalControl
Before installation these instructions must be fully read and understood
© 2017 Emerson. All Rights Reserved. VCIOM-09536-EN 18/09
INSTALLATION
1. Strainers should be installed ahead of
steam traps, control or pressure reducing
valves and other pipe line equipment to
protect against dirt, chips, scale or other
foreign matter.
2. Fit strainer with nippleand blow down valve
to facilitate frequent inspection and cleaning
of strainer.
3. Fig. 1A shows a Yarway Strainer installed
in a horizontal line ahead of a steam trap.
Fig.2 A shows the strainer installed in a
vertical down-flow line. Be sure to install
the strainer with the arrow in direction of
flow.
4. Prevent freezing by installing strainer on
its side in horizontal lines or in vertical
downward flow piping. Both strainer and
blow down valve will drain completely and
therefore be freeze proof on shut down.
SERVICING
1. Regular inspection and blowing down of the
strainer (by removing cap plug or opening
blow down valve) will help to keep the
strainer free of debris.
2. To Clean. Valve off the strainer and remove
the screen cap. The screen and cap gasket
will come out with the cap.
Clean the screen with compressed air,
steam, or wash with a rust removing
solvent. Keep spare screens on hand to
reduce maintenance time.
3. To Reassemble. Clean the gasket surfaces
on the cap and body and install a new gasket
on the cap shoulder. Place the screen in the
cap recess and secure the cap assembly to
the strainer body.
4. Same maintenance procedure appliesto
bolted cover strainers.
SPARE PARTS
For one year service the following parts are
recommended for each strainer installed:
(2) Screen Cap Gaskets
(1) Screen
To order gaskets or screens: Specify (Qty.)
screen cap gasket for (Size), (Fig. No.) Yarway
Strainer. (Qty.), (Perforation or mesh size),
(Material) Screen for (Size), (Fig.No.) Yarway
Strainer.
WARNING
Hot discharge from this product may cause severe
burns. Discharge must be piped away or directed
so that persons in the vicinity are not endangered.
This product must be isolated, vented and cool to
the touch before repairing or inspecting.
FIG. 3A
FIG. 1A
FIG. 2A

2
YARWAY INSTALLING AND SERVICING STRAINERS
InstallatIon, operatIon and maIntenance InstructIons
Neither Emerson, Emerson Automation Solutions, nor any of their affiliated entities assumes responsibility for the selection, use or maintenance of any product.
Responsibility for proper selection, use, and maintenance of any product remains solely with the purchaser and end user.
Emerson Automation Solutions, Emerson and the Emerson logo are trademarks and service marks of Emerson Electric Co. All other marks are the property of their
respective owners.
The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be
construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. All sales are governed by
our terms and conditions, which are available upon request. We reserve the right to modify or improve the designs or specifications of such products at any time without
notice.
Emerson.com/FinalControl
NOTE
Any malfunction of this product must be reported to
the service department. Repare made to the product
by unauthorized personnel will void the warranty.
RIGHT TO KNOW LAWS AND OSHA STANDARD
29CFR (1910.1200)
Material Safety Data Sheets on the following
Yarway products:
Valves, Steam Traps and Strainers
The OSHA Hazard Communication Standard
29CFR 1910.1200, states that the standard does
not apply to “articles.” The standard defines an
article as:
“A manufactured item formed to a specific
shape or design for a particular use which does
not release or otherwise expose an employee to
a hazardous chemical under normal conditions
of use.”
The above named products fall within the
definition of an “article”, no Material Safety
Data Sheets are available or are required. Our
product is manufactured as an “end product.”
If the product is a weld end the following
applies.
WARNING
Materials used in manufacture of Yarway products
are considered in a stable condition when
shipped.
However, under certain conditions purchasers
could create potential hazardous conditions by
their future operations.
CAUTION
Welding, cutting, burning, machining or grinding
of this product can generate toxic dust and fumes
of potentially hazardous ingredients. The dust
or fumes can cause irritation of the respiratory
tract, nose, throat, skin and eyes. It may cause
temporary or permanent respiratory disease in
a small percentage of exposed individuals. Use
moderate ventilation when grinding or welding.
Avoid breathing dust, fumes or mist. Avoid
prolonged skin contact with dust or mist. Maintain
dust levels below OSHA and ACGIH levels. Use
protective devices. Wash hands thoroughly after
contact with dust before eating or smoking.