INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS
Before installation these instructions must be fully read and understood
TABLE OF CONTENTS
Product warranty ������������������������������������������������ 1
1�0 About the manual ��������������������������������������� 2
2�0 Introduction ������������������������������������������������� 2
2�1 Features and specifications ���������������� 2
2�2 Design ratings at maximum and
minimum operating temperatures ���� 2
2�3 Design ratings for FM approved units 3
2�4 Application data ����������������������������������� 3
3�0 Inspection and performance confirmation 3
3�1 Receiving inspection ���������������������������� 3
3�2 User's rating inspection ���������������������� 3
4�0 Installation �������������������������������������������������� 3
4�1
and precautions �����������������������������������4
of glass ������������������������������������������������� 6
minimum operating temperatures ��� 2
units ���������������������������������������������������� 3
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
orworkmanship�
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
oraccident�
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�
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�
INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS
1.0 ABOUT THE MANUAL
This manual has been prepared as an
aid and guide for personnel involved
installation or maintenance� All instructions
must be read and understood thoroughly
before attempting any installation,
operation, or maintenance�
Important: Penberthy does not have
control over the manner in which its dual
window sight flow indicator is handled,
installed, or used, and Penberthy cannot
and does not warrant or guarantee that
a dual window sight flow indicator is
suitable or compatible with the user's
specificapplication�
WARNING
Always wear safety glasses when installing,
servicing or operating a dual window sight flow
indicator. Failure to follow any instruction could
possibly result in a malfunction of the dual
window sight flow indicator or glass breakage with
resulting sudden release of pressure, causing
serious personal injury or property damage.
2.0 INTRODUCTION
2.1 Features and specifications
Penberthy dual window sight flow indicators
are designed for the observation of flow in a
process line� They are designed with dual glass
to double the protection in case of accidental
breakage of the inner or outer glass� They
are available in a variety of models, sizes and
connection styles� The user should refer to
Penberthy dimension sheets to determine
specific models and connection styles available�
TABLE 1 - MAXIMUM DESIGN RATINGS FOR UNITS WITH TEMPERED GLASS
Body
materialTemp rating
Carbon
steel
316
Stainless
steel
Body
materialTemp rating
Carbon
steel
316
Stainless
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)
AT +500°F (260°C)
-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)
AT +500°F (260°C)
-20°F (-29°C) to +100°F (38°C)
AT +250°F (121°C)
AT +300°F (149°C)
AT +400°F (204°C)
AT +500°F (260°C)
-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)
AT +500°F (260°C)
Teflon
740 (5�10)
605 (4�17)
720 (4�96)
480 (3�31)
PCTFE (KEL-F®)Neoprene
740 (5�10)
635 (4�38)
720 (4�96)
515 (3�55)
Gasket material (psig (MPa))
®
740 (5�10)
605 (4�17)
720 (4�96)
480 (3�31)
®
Grafoil
Gasket material (psig (MPa))
740 (5�10)
655 (4�52)
720 (4�96)
560 (3�86)
740 (5�10)
605 (4�17)
720 (4�96)
480 (3�31)
IFG-5500
®
®
740 (5�10)
635 (4�38)
720 (4�96)
515 (3�55)
Buna-N
740 (5�10)
670 (4�62)
720 (4�96)
590 (4�07)
Viton
®
2.2 Design ratings at maximum and minimum
operating temperatures
Refer to Table 1
2
PENBERTHY SIGHT FLOW INDICATORS
INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS
2.3 Design ratings for FM approved units
To determine maximum allowable working
pressure for a specific temperature within the
design limits stated above, the user should
refer to Penberthy dimension sheets, or when
provided, the specifically stated design limits
on a Penberthy product proposal�
2.4 Application data
NOTE
For specific application data within the above
ranges, consult the Penberthy product proposal
for the specific model and size dual window sight
flow indicator, or request Penberthy to supply the
applicable Technical Data Bulletin�
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.
3.0 INSPECTION AND PERFORMANCE
CONFIRMATION
3.1 Receiving inspection
Upon receipt of dual window sight flow
indicator, check all components carefully
for damage incurred in shipping� If damage
is evident or suspected, do not attempt
installation� Notify carrier immediately and
request a damage inspection�
3.2 Users' rating inspection
The user should confirm that:
1� The dual window sight flow indicator model
number and pressure/temperature rating
stamped on nameplate (163) conforms
to the description on the user's purchase
order�
2� The operating conditions described in
the purchase order agree with the actual
conditions at the installation site�
3� The actual operating conditions at the
installation site are within the application
data shown on the Penberthy Technical
Data Bulletin referred to above�
4� The materials of construction of the sight
flow indicator are compatible with both the
contained fluid and surrounding atmosphere
in the specific application�
If the size, model or performance data of the dual
window sight flow indicator as received does not
conform with any of the criteria above, do not
proceed with installation. Contact an authorized
Penberthy distributor for direction on what to do.
4.0 INSTALLATION
Use only qualified experienced personnel who
are familiar with this equipment and thoroughly
understand all the instructions in this manual
for the installation of this equipment�
Refer to Penberthy dimension sheets or
Penberthy product proposal to obtain
dimensional information for the specific size
and model dual window sight flow indicator�
WARNING
Do not proceed with installation of a dual window
sight flow indicator unless the glass has been
examined and is free of scratches and other
imperfections and the connections and inside of
the dual window sight flow indicator have been
cleaned and are free of any foreign materials.
Glass that is chipped or scratched is weakened
and should not be used under any circumstances.
Pressure/temperature ratings within Table 1 and
2 are no longer valid for glass that is weakened.
Failure to comply can cause serious personal
injury or property damage.
Check the exploded view Figure 4 for the
location of the inlet and outlet connections,
and for the direction of the flow arrow to
insure correct hook up�
GRAFOIL
®
3
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