d> Below is a cache of http://www.jogler.com/graphics/LEVEL-IOMM.pdf. It's a snapshot of the page taken as our search engine crawled the Web.
The web site itself may have changed. You can check the current page or check for previous versions at the Internet Archive. Yahoo! is not affiliated with the authors of this page or responsible for its content.
DIRECT-READING LIQUID LEVEL GAGES Installation, Operation and Maintenance Instructions
DIRECT-READING LIQUID LEVEL GAGES
Installation, Operation and Maintenance Instructions
1.0.0 Direct-Reading Liquid Level Gage Description . . . . . . . . . . . . . . .2
1.0.1 Introduction
1.0.2 Components
1.0.3 Design
1.0.4 Inspection
1.1.0 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
1.1.1 Introduction
1.1.2 Procedures
1.1.3 Recommended Bolt Torque
1.2.0 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
1.2.1 Introduction
1.2.2 Procedures
1.2.3 Ball-N-Ball Valves
1.3.0 Removal From Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
1.3.1 Introduction
1.3.2 Procedures
1.4.0 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
1.4.1 Introduction
1.4.2 Inspection Procedures
1.4.3 Cleaning
1.5.0 Spare Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
1.5.1 Introduction
1.5.2 Ordering
1.5.3 Receiving and Storage
1.5.4 Unigages
1.6.0 Patents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
1.6.1 Introduction
1.6.2 Superseal Inserts
1.6.3 Tube-N-Gages
1.6.4 Ball-N-Ball Valves
1.6.5 PFA Teon Lined Unigages
1.7.0 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
1.7.1 Introduction
1.7.2 Conditions
1.7.3 Provisions
1.8.0 Terms and Condition of Sale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
1.8.1 Introduction
1.8.2 Terms
1.8.3 Shipment
1.8.4 Restocking
1.8.5 Cancellation
1.9.0 Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
1.9.1 Introduction
1.9.2 Hydrostatic Testing
1.9.3 Ratings @ 150� F
Jogler Direct-Reading Liquid-Level Gages
Installation, Operation, and Maintenance Instructions
Version 4/01
Copyright 2001 Jogler, Inc.
Page 1 1.0 Direct-Reading Liquid Level Gages Description
1.0.1 INTRODUCTION
JOGLER Direct-Reading Liquid Level Gages are classied as transparent armored tubular liquid level gages. Their purpose is to
provide visual verication of liquid level in a vessel or tank. These simple, durable instruments are engineered and constructed to
give safe and accurate indication of level. Applications range from deionized water to highly corrosive chemicals and cryogenic
uids.
1.0.2 COMPONENTS
JOGLER level gages are constructed with four or ve components:
1. One armored shield, with two anges. Materials can be carbon steel, 300 series stainless, CPVC or berglass.
2. Two PTFE Teon SUPERSEAL inserts that seal each sight-tube end.
3. One sight tube for single tube gages or two sight tubes for TUBE-N-TUBE gages.
1.0.3 DESIGN
JOGLER level gages are manufactured to exact customer length and diameter specications. SUPERSEAL inserts seal each sight
tube end and are the raised sealing face of each gage ange. All gages provide unobstructed visibility with each shield section.
Side-mounted gage connectors are available for level gages, threaded or anged, with or without BALL-N-BALL check and isola-
tion valves.
1.0.4 INSPECTION
Upon receiving equipment, check all components carefully for damage incurred in shipping. Notify the shipping carrier immedi-
ately of any damage and request damage inspection. Conrm the gage model number and ratings meet minimum application
specications. In addition, ensure the gage material is compatible with both the process media and surrounding environment.
1.1 Installation
1.1.1 INTRODUCTION
Please read and review all installation steps before attempting gage installation. Failure to do so may result in equipment damage
and void the gage warranty (Section 1.7.0.). JOGLER level gages must be installed, operated and maintained with reasonable care
and regard for the application if they are to provide maintenance free performance.
CAUTIONS: PLEASE OBSERVE THE FOLLOWING CAUTIONS.
To avoid imposing piping strains on the level gage, connect or mount the gage so that it does not support or strain piping.
Differential thermal expansions between the vessel and level gage can impose severe mechanical loads on the equipment.
This especially true if the system contains hot or cryogenic uids. This condition can be prevented by installing an expan-
sion loop between the gage and vessel or by using a reasonably long run of piping.
Support brackets should be considered for level gages longer than 10 ft or heavier than 75 lb. Gages subject to excessive
vibration should contain auxiliary mounting brackets. Support brackets will prevent overloading the process connections
and piping
Always provide ball check and isolation valves between each level gage connection and vessel. Ball check valves are recom-
mended to help provide protection against physical injury and loss of process product if gage failure should occur.
JOGLER'S patented BALL-N-BALL valves are available for this purpose. Such valves also provide a means to isolate the
gage for maintenance.
While unpacking, remove all ange protectors. Single tube level gages normally have sponge protectors inserted between
the sight tubing and the shield. These can be removed at the user's discretion.
Prevent tools and other loose objects from striking or scratching the sight tubing through the viewing slot.
Jogler Direct-Reading Liquid-Level Gages
Installation, Operation, and Maintenance Instructions
Version 4/01
Copyright 2001 Jogler, Inc.
Page 2 Carefully align instrument anges with connection anges. If the gage is too long or too short do not attempt nal instal-
lation. Consult the factory if gage is improperly measured.
Connection alignment is critical with both level gages. If gage connections are not level vertically or are offset horizontally,
do not attempt installation.
Level gages with anged side-mounted gage connectors will require gaskets between the connection ange and gage con-
nector. Check gasket material against process compatibility.
Apply even bolt torque to connection anges. Improper ange bolt torque can distort the Teon sight tube inserts, result-
ing in strain transmitted to the sight tubing.
Recommended Bolt Torque
Flange Size, inches
Torque, ft/lb
1.00
15
1.50
20
2.00
25
3.00
40
4.00
45
6.00
60
8.00
80
1.2 Operation
1.2.1 INTRODUCTION
Please read and review all installation steps before attempting gage operation. Failure to do so may result in equipment damage
and void the gage warranty.
1.2.2 PROCEDURES
WARNING: MAKE SURE THE OPERATING CONDITIONS, TEMPERATURE, AND PRESSURE ARE WITHIN THE MAXI-
MUM RATING OF THE GAGE (SECTION 1.9.0). DO NOT ATTEMPT TO OPERATE ANY GAGE IF THERE IS ANY QUES-
TION CONCERNING PROCESS CONDITIONS AND OVERALL GAGE RATINGS.
1. Verify that the gage is vertically plumb, as dictated by the application.
2. Verify that all level gage connection valves are closed.
CAUTION: LEVEL GAGES SHOULD BE BROUGHT INTO SERVICE VERY SLOWLY, BECAUSE THERMAL SHOCK
CAN LEAD TO GAGE FAILURE. THEREFORE, CONSIDER BOTH THE AMBIENT AND PROCESS TEMPERATURES
WHEN PLACING THE INSTRUMENT INTO SERVICE. IF THE DIFFERENCE BETWEEN THESE TWO TEMPERA-
TURES IS SIGNIFICANT, THE BOROSILICATE SIGHT TUBING SHOULD BE EXPOSED TO PROCESS TEMPERA-
TURES AS SLOWLY AND EVENLY AS POSSIBLE. THE RATE OF TEMPERATURE CHANGE SHOULD NOT EXCEED
50 � F (28� C) PER MINUTE.
3. When the level gage is mounted correctly and ready for placement into service, PARTIALLY OPEN THE TOP PROCESS
CONNECTION VALVE FIRST and very slowly to allow initial pressure and temperature equalization between the vessel
and level gage. This allows the process conditions of the vessel to equalize with the gage slowly and reach operating con-
ditions at a slow even rate. If a BALL-N-BALL valve is opened fully upon initial installation, the process pressure will
cause an overpressure condition and will force the ball-check to seat. This condition will prohibit additional process
inux.
WARNING: DO NOT OPEN THE BOTTOM VALVE FIRST. IF THE BOTTOM CONNECTION VALVE IS OPENED
FIRST WITH THE TOP VALVE CLOSED WHILE THE VESSEL IS UNDER ELEVATED TEMPERATURE AND PRESSURE,
THE PROCESS MEDIA COULD INDUCE THERMAL SHOCK.
4. After the level gage has reached process conditions, continue to open the TOP process connection slowly, allowing any
Jogler Direct-Reading Liquid-Level Gages
Installation, Operation, and Maintenance Instructions
Version 4/01
Copyright 2001 Jogler, Inc.
Page 3 liquid or condensate to enter the gage. Liquid accumulation may occur through the top connection with the bottom
connection closed if the level gage is under elevated temperature and pressure.
5. When the level gage has