PENBERTHY THREADED SIGHT WINDOWS
INSTALLATION, OPERATION AND MAINTENANCE MANUAL
Before installation, these instructions must be carefully read and understood.
TABLE OF CONTENTS
TABLES AND FIGURES
Prior to submitting any claim for warranty
service, the owner must submit proof of
purchase to Emerson and obtain written
authorization to return the product. Thereafter,
the product shall be returned to Emerson, with
freight paid.
This warranty shall not apply if the product has
been disassembled, tampered with, repaired or
otherwise altered outside of Emerson factory,
or if it has been subject to misuse, neglect or
accident.
The responsibility of Emerson hereunder is
limited to repairing or replacing the product
at its expense. Emerson shall not be liable
for loss, damage or expenses related directly
or indirectly to the installation or use of
its products, or from any other cause or
for consequential damages. It is expressly
understood that Emerson is not responsible
for damage or injury caused to other products,
buildings, personnel or property, by reason of
the installation or use of its products.
Product Warranty ........................................... 1
1. About the Manual ...................................... 2
2. Introduction............................................... 2
2.1 System Description ................................ 2
3. Available Models ....................................... 2
3.1 Design Ratings at Maximum and
Minimum Operating Temperatures ...... 2
4. Assembly................................................... 3
4.1 Assembling Threaded Sight Windows .. 3
5. Installation ................................................ 3
6. Operation .................................................. 4
7. Maintenance .............................................. 4
7.1 Maintenance procedures ....................... 4
7.2 Troubleshooting ..................................... 4
8. Removal-Disassembly-Reassembly ......... 5
8.1 Disassembly ........................................... 5
8.2 Reassembly ............................................ 5
9. Disposal at End of Useful Life ................... 5
10. Telephone Assistance ............................... 5
11. Exploded Parts Diagram ........................... 6
Table 1 Maximum Design Ratings for
Units with Tempered Glass ............ 2
Table 2 Cover Torque Values ....................... 3
Figure 1 Exploded Parts Drawing ................. 6
PRODUCT WARRANTY
Emerson warrants its Penberthy products
as designed and manufactured by Emerson
to be free of defects in the material and
workmanship for a period of one year after
the date of installation or eighteen months
after the date of manufacture, whichever is
earliest. Emerson will, at its option, replace
or repair any products which fail during the
warranty period due to defective material or
workmanship.
THIS IS EMERSON’S SOLE WARRANTY
AND IN LIEU OF ALL OTHER WARRANTIES,
EXPRESSED OR IMPLIED WHICH ARE HEREBY
EXCLUDED, INCLUDING IN PARTICULAR
ALL WARRANTIES OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE.
This document and the warranty contained
herein may not be modified and no other
warranty, expressed or implied, shall be made
by or on behalf of Emerson unless made in
writing and signed by the General Manager or
Director of Engineering of Emerson.
© 2017 Emerson. All Rights Reserved. VCIOM-12339-EN 19/06Emerson.com/FinalControl
PENBERTHY THREADED SIGHT WINDOWS
INSTALLATION, OPERATION AND MAINTENANCE MANUAL
1.0 ABOUT THE MANUAL
This manual has been prepared as an aid and
guide for personnel involved in installation and
maintenance. All instructions must be read and
understood thoroughly before attempting any
installation, operation, or maintenance.
WARNING
Always wear safety glasses when installing,
servicing or operating a threaded sight window.
Failure to follow any instruction could possibly
result in a malfunction of the threaded sight
window or glass breakage with resulting sudden
release of pressure causing serious personal
injury or property damage.
2.0 INTRODUCTION
Penberthy Threaded Sight Windows can be
used anywhere that a ¼" to 3" piping "T" or a
female NPT exists. Threaded Sight Windows
offer a quick and inexpensive method of
observing a fluid.
At a glance, the Threaded Sight Window allows
for monitoring of:
• Liquid presence - change in level or volume
of liquid in the viewing area
• Liquid color - change in tint or hue
• Liquid clarity - change in opacity, brightness
or purity
The Threaded Sight Window provides a circular
glass window for convenient fluid monitoring.
The window assists the operation manager by
creating a monitoring port for fluid process
volumes, directions, and reactions without
exposing the liquid to the external environment.
The Threaded Sight Window is recommended
for applications less than or equal to 285 psig
(1.97 MPaG).
2.1 System Description
3.0 AVAILABLE MODELS
The Penberthy Threaded Sight Window consists
of four basic components. Each component
may vary slightly, depending on the desired
physical and mechanical properties for the
window. Use the exploded parts view in
Section12.0 as additional reference material.
Cover: the cover provides a machined surface
Standard materials of construction for the
WTSL metal housings are carbon steel and
stainless steel. Standard glass is tempered
borosilicate with neoprene gasketing being
the standard gasket for steel and Teflon
316STS.
in which the glass and cushion are protectively
seated. The threaded cover provides an
effective means of "screw" compressing the
3.1 Design Ratings at Maximum and Minimum
Operating Temperatures
glass between the cover and body.
Body: the threaded body provides rigid, in-line
or vessel attachment capability. In addition, the
body provides a flat, machined cavity in which
the cover compresses the gasket.
Glass: the glass provides a window for in-line
WARNING
Never exceed these design ratings or application
data limits. Exceeding design ratings or
application data limits can cause serious personal
injury or property damage.
or vessel fluid observation.
Gaskets: the gaskets are compressed by the
cover to tightly seal the gap between the glass
and the body to prevent leaking.
TABLE 1 - MAXIMUM DESIGN RATINGS FOR UNITS WITH TEMPERED GLASS
Gasket Material (psig [MPa])
Body Material Temperature Rating
Carbon steel -20°F [-29°C] to 100°F [38°C]
at 400°F [204°C]
316 Stainless steel -300°F [-184°C] to 100°F [38°C]
at 500°F [260°C]
Body Material Temperature Rating
Carbon steel -20°F [-29°C] to 100°F [38°C]
at 250°F [121°C]
at 300°F [149°C]
at 400°F [204°C]
316 Stainless steel -20°F [-29°C] to 100°F [38°C]
-65°F [-54°C] to 100°F [38°C]
-300°F [-184°C] to 100°F [38°C]
at 250°F [121°C]
at 300°F [149°C]
at 400°F [204°C]
®
Teflon
285 [1.97]
200 [1.38]
275 [1.90]
170 [1.17]
Teflon®IFG-5500®Grafoil
285 [1.97]
200 [1.38]
275 [1.90]
195 [1.34]
IFG-5500
285 [1.97]
200 [1.38]
275 [1.90]
170 [1.17]
Gasket Material (psig [MPa])
285 [1.97]
200 [1.38]
275 [1.90]
195 [1.34]
®
285 [1.97]
230 [1.59]
275 [1.90]
215 [1.48]
®
®
for
Grafoil
285 [1.97]
200 [1.38]
275 [1.90]
170 [1.17]
Buna N
285 [1.97]
245 [1.69]
275 [1.90]
225 [1.55]
®
2
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