Before installation these instructions must be read fully and understood
Product warranty
Emerson warrants its Penberthy products
as designed and manufactured 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.
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's 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.
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 company's general
manager or director of engineering.
PENBERTHY
SERIES U FLAT GLASS GAGES
INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS
valves.emerson.com
© 2017 Emerson. All rights reserved.
VCIOM-04042-EN 17/05
1 ABOUT THE MANUAL
This manual has been prepared as an aid and
guide for personnel involved in installation or
maintenance. All instructions must be read and
understood thoroughly before attempting any
installation, operation or maintenance.
SAFETY INSTRUCTIONS
Emerson does not have any control over the
manner in which its gage is handled, installed
or used and Emerson cannot and does not
warrant or guarantee that a gage is suitable for or
compatible with the user's specific application.
WARNING
Contained fluids may be pressurized and can exit
vessel connections unexpectedly due to apparatus
or material failure. Safety glasses should be worn
when installing a liquid level gage. Failure to
follow instructions could result in serious physical
injury or property damage.
TABLE OF CONTENTS
Product warranty ................................................ 1
1. About the manual .......................................... 1
2. Introduction ................................................... 2
2.1 System description .................................. 2
3. Available models ........................................... 2
3.1 Design ratings .......................................... 2
4. Inspection ...................................................... 3
4.1 Glass inspection ....................................... 3
4.2 User's rating inspection .......................... 3
5. Installation ..................................................3-4
5.1 Piping strain ............................................. 3
5.2 Differential thermal expansion ............... 4
5.3 Mirror viewing .......................................... 4
5.4 Nut retorquing ......................................... 4
6. Operation ....................................................... 4
6.1 Hydrostatic test ........................................ 4
7. Maintenance .................................................. 5
7.1 Maintenance procedures ........................ 5
7.2 Troubleshooting ....................................... 5
8. Removal - disassembly - reassembly ......6-7
8.1 Disassembly ............................................. 6
8.2 Inspection of glass seating surfaces ...... 6
8.3 Reassembly .............................................. 7
9. Disposal at end of useful life ........................ 7
10. Telephone assistance ................................... 7
11. Exploded parts diagram ................................ 8
Tables and figures
Table 1 Design ratings .................................... 2
Table 2 Bolt torque values .............................. 4
Figure 1 Nut tightening sequence ................... 4
Figure 2 Nut loosening sequence .................... 6
Figure 3 Exploded parts diagram .................... 8
