About The Manual - Emerson Penberthy Installation, Operation And Maintenance Instructions

PENBERTHY SIGHT FLOW INDICATORS
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
specific application�
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�
2.2 Design ratings at maximum and minimum
operating temperatures
Refer to Table 1
TABLE 1 - MAXIMUM DESIGN RATINGS FOR UNITS WITH TEMPERED GLASS
Body
material Temp rating
Carbon -20°F (-29°C) to +100°F (38°C)
steel AT +250°F (121°C)
AT +300°F (149°C)
AT +400°F (204°C)
AT +500°F (260°C)
316 -20°F (-29°C) to +100°F (38°C)
Stainless -65°F (-54°C) to +100°F (38°C)
steel -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)
Body
material Temp rating
Carbon -20°F (-29°C) to +100°F (38°C)
steel AT +250°F (121°C)
AT +300°F (149°C)
AT +400°F (204°C)
AT +500°F (260°C)
316 -20°F (-29°C) to +100°F (38°C)
Stainless -65°F (-54°C) to +100°F (38°C)
steel -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)
Gasket material (psig (MPa))
Teflon Grafoil IFG-5500
® ®
740 (5�10) 740 (5�10) 740 (5�10)
605 (4�17) 605 (4�17) 605 (4�17)
720 (4�96) 720 (4�96) 720 (4�96)
480 (3�31) 480 (3�31) 480 (3�31)
Gasket material (psig (MPa))
PCTFE (KEL-F ) Neoprene
®
740 (5�10) 740 (5�10)
655 (4�52)
635 (4�38)
720 (4�96)
720 (4�96)
560 (3�86)
515 (3�55)
Viton
® ®
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)
2