Standard Specification for Indicators, Sight, Liquid Level, Direct and Indirect Reading, Tubular Glass/Plastic

ABSTRACT
This specification covers the requirements for direct and indirect reading sight liquid level indicators for general applications. General applications for indirect reading sight glasses are water and fuel service at working pressures 2.07 MPa (300 lb/in.2) and below, temperatures of 149°C (300°F) and below. Direct reading sight glass indicators may consist of glass or plastic tubes with fittings including shutoff valves. Glass tubes may be used for low shock direct reading sight glass indicators in which the fluid is not compatible with plastic. Indirect reading indicators may consist of a sealed chamber with a magnetic float or flag indicator. Indicator designs are classified as either direct reading or indirect reading. Qualification testing and quality conformance testing shall be performed to meet the requirements prescribed.
SCOPE
1.1 This specification covers the requirements for direct and indirect reading sight liquid level indicators for general applications. General applications for indirect reading sight glasses are water and fuel service at working pressures 2.07 MPa (300 lb/in.2) and below, temperatures of 149oC (300oF) and below. General applications for direct reading sight glasses are applications in which the temperature does not exceed 66oC (150oF).
1.2 Direct reading sight glass indicators may consist of glass or plastic tubes with fittings including shutoff valves. Glass tubes may be used for low shock direct reading sight glass indicators in which the fluid is not compatible with plastic.
1.3 Indirect reading indicators may consist of a sealed chamber with a magnetic float or flag indicator.
1.4 Special requirements for naval shipboard applications are included in the supplement to this standard.
1.5 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

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Publication Date
31-Jan-2006
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ASTM F2045-00(2006) - Standard Specification for Indicators, Sight, Liquid Level, Direct and Indirect Reading, Tubular Glass/Plastic
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
An American National Standard
Designation: F2045 – 00 (Reapproved 2006)
Standard Specification for
Indicators, Sight, Liquid Level, Direct and Indirect Reading,
Tubular Glass/Plastic
This standard is issued under the fixed designation F2045; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 3.1.1 SI(LeSystemeInternationald’Unites)Units—unitsof
measurement recognized by the CIPM (Comite’ International
1.1 This specification covers the requirements for direct and
des Poids et Mesures).
indirect reading sight liquid level indicators for general appli-
cations. General applications for indirect reading sight glasses
4. Design Classification
are water and fuel service at working pressures 2.07 MPa (300
4.1 Types—Indicator designs are classified as either direct
lb/in. ) and below, temperatures of 149°C (300°F) and below.
reading or indirect reading. Both types are depicted in Fig. 1,
General applications for direct reading sight glasses are appli-
complete with dimensions that facilitate ordering.
cations in which the temperature does not exceed 66°C
4.2 Special Considerations—Special considerations that
(150°F).
may affect selection and installation are listed below. This is
1.2 Directreadingsightglassindicatorsmayconsistofglass
not to be construed as a complete listing.
or plastic tubes with fittings including shutoff valves. Glass
(1) Type of indicator,
tubes may be used for low shock direct reading sight glass
(2) Manual or automatic shutoff valves,
indicators in which the fluid is not compatible with plastic.
(3) Indication length of liquid level range,
1.3 Indirect reading indicators may consist of a sealed
(4) Method of connection,
chamber with a magnetic float or flag indicator.
(5) Location of indicator relative to vibrating equipment,
1.4 Special requirements for naval shipboard applications
(6) Protection of the instrumentation,
are included in the supplement to this standard.
(7) Application of each indicator,
1.5 The values stated in SI units are to be regarded as the
(8) Cleaning procedure or reference to the cleaning proce-
standard. The values given in parentheses are for information
dure being used, and
only.
(9) Selection of indicator for compatibility with materials,
2. Referenced Documents temperature, pressure, ambient environment, and with the
parameter being measured.
2.1 ASTM Standards:
D3951 Practice for Commercial Packaging
5. Ordering Information
2.2 ANSI Standards:
3 5.1 The buyer shall provide the manufacturer with all of the
B16.5 Pipe Flanges and Flanged Fittings (DoD adopted)
pertinent application data outlined in the acquisition require-
3. Terminology ments.
5.2 Acquisition Requirements—Acquisition documents
3.1 Definitions:
shall specify the following:
(1) Title, number, and date of this specification;
(2) Type and quantity of indicators required;
This specification is under the jurisdiction of ASTM Committee F25 on Ships
(3) Manufacturer’s part number;
and Marine Technology and is the direct responsibility of Subcommittee F25.10 on
Electrical.
(4) When qualification testing is required;
Current edition approved Feb. 1, 2006. Published February 2006. Originally
(5) Final disposition of qualification test samples;
approved in 2000. Last previous edition approved in 2000 as F2045 – 00. DOI:
(6) Environmental requirements;
10.1520/F2045-00R06.
(7) Operating media;
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
(8) Viscosity and specific gravity of fluid for indirect
Standards volume information, refer to the standard’s Document Summary page on
indicators;
the ASTM website.
3 (9) Materials;
Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
4th Floor, New York, NY 10036. (10) Indication length;
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
F2045 – 00 (2006)
FIG. 1 Indicator Design Types
(11) Size and type of connections; 7. Physical Properties
(12) Shutoff valve requirements;
7.1 Connections—Sight indicators are usually installed us-
(13) Cleaning requirements;
ing standard pipe fittings or flanges. Pipe fittings and material
(14) When certification is required;
should match that of the existing pipe for each installation.
(15) Marking requirements;
Type and size of fittings shall be specified in the acquisition
(16) Unique packaging requirements; and
requirements. Welding or brazing shall be performed in accor-
(17) Unique preservation requirements.
dance with industry standards.
6. Materials and Manufacture 7.2 Flanged Connections—Where sight indicators are in-
stalled using flanges, flanges shall be in accordance withANSI
6.1 Materials—The materials for all wetted parts shall be
B16.5. Standard flange sizes include 1.27 cm ( ⁄2 in.), 1.9 cm
selected for long-term compatibility with the process medium
3 1
( ⁄4 in.), 2.54 cm (1 in.), 3.8 cm (1- ⁄2 in.), and 5.08 cm (2 in.).
and ambient conditions.
Standard flange pressure ratings include 1.034 MPa (150 psi),
6.2 MaterialInspection—Themanufacturershallberespon-
2.07 MPa (300 psi), and 4.14 MPa (600 psi). Other flange
sible for ensuring that materials used are manufactured, exam-
requirements shall be specified in the acquisition requirements.
ined, and tested in accordance with the specifications and
7.3 Vent and Drain Connections—Where required, vent and
standards as applicable.
1 3
6.3 Gaskets and O-Rings—Gaskets and O-rings shall be drain connections are usually plugged, ⁄2-or ⁄4-in. NPT or
fabricated of materials suitable to the operating pressure, with NPT valves. Other vent and drain connections shall be
temperature, and process medium for each application. specified in the acquisition requirements.
F2045 – 00 (2006)
8. Performance Requirements however, shall less than three units, one unit each representing
low, medium, and high ranges, be tested, regardless of design
8.1 Performance Considerations—In many applications,
similarity.
certain performance characteristics are deemed critical to the
intended or desired function of a sight liquid level indicator.
12. Test Methods
The following are prime examples:
12.1 Tests—All tests shall be performed in accordance with
(1) Accuracy,
ASTM, ASME, or industry standards as specified.
(2) Shock and vibration classifications, and
12.2 Test Data—All test data shall remain on file at the
(3) Operating pressure and temperature ranges.
manufacturer’s facility for review by the buyer upon request. It
9. Workmanship, Finish, and Appearance
isrecommendedthattestdataberetainedinthemanufacturer’s
filesforatleastthreeyearsoraperiodoftimeacceptabletothe
9.1 Finish and Appearance—Any special surface finish and
buyer and manufacturer.
appearance requirements shall be specified in the acquisition
requirements.
13. Quality Assurance Provisions
9.2 Sight Glass Cleaning—Any special cleaning require-
13.1 Warranty—Unless otherwise specified, the manufac-
ments shall be specified in the acquisition requirements.
turer is responsible for the following:
10. Inspection
(1) All materials used to produce a unit and
(2) Manufacturer will warrant his product to be free from
10.1 Classification of Inspections—The inspection require-
defect of workmanship to produce the unit.
ments specified herein are classified as follows:
(1) Qualification testing and
14. Certification
(2) Quality conformance testing.
14.1 When specified in the purchase order or contract, the
10.2 Qualification Testing—Qualification test requirements
buyer shall be furnished certification that samples representing
shall be specified where applicable. Qualification test methods
each lot have been either tested or inspected as directed in this
should be identified for each design and performance charac-
specification and the requirements have been met. When
teristic specified. Test report documentation requirements
specified in the purchase order or contract, a report of the test
should also be specified.
results shall be furnished.
10.3 Quality Conformance Testing—Quality conformance
testing is accomplished when qualification testing was satisfied
15. Product Marking
by a previous acquisition or product has demonstrated reliabil-
15.1 User-specified product marking shall be listed in the
ity in similar applications. Quality conformance testing is
acquisition requirements.
usually less intensive than qualification, often verifying that
samples of a production lot meet a few critical performance
16. Packaging and Package Marking
requirements.
16.1 Packaging of Product for Delivery—Product shall be
11. Number of Tests and Retests
packaged for shipment in accordance with Practice D3951.
11.1 Test Specimen—The number of test specimens to be 16.2 Any special preservation, packaging, or package mark-
subjected to qualification testing shall depend on the design. If ing requirements for shipment or storage shall be identified in
each range is covered by a separate and distinct design, a test the acquisition requirements.
specimen for each range will require testing. In instances in
17. Keywords
which a singular design series may cover multiple ranges and
types, only three test specimens need be tested provided the 17.1 direct level indicator; indirect level indicator; liquid
physical similarities are approved by the buyer. In no case, level indicator; sight glass
SUPPLEMENTARY REQUIREMENTS
The following supplementary requirements established for U.S. Naval shipboard application shall
apply when specified in the contract or purchase order. When there is conflict between the standard
(Specification F2045) and this supplement, the requirements of this supplement shall take precedence
forequipmentacquiredbythissupplement.ThisdocumentsupersedesMIL-I-20037,Indicators,Sight,
Liquid Level, Direct/Indirect Reading, Tubular Glass/Plastic, for new ship construction.
F2045 – 00 (2006)
INDICATORS, SIGHT, LIQUID LEVEL, DIRECT AND INDIRECT READING, TUBULAR GLASS/PLASTIC
(NAVAL SHIPBOARD USE)
S1. Scope MIL-STD-167-1 Mechanical Vibrations of Shipboard
Equipment (Type I - Environmental and Type II - Internally
S1.1 This supplement covers sight liquid level indicators of
Excited)
the direct and indirect reading type having tubular glass, clear
S2.2.2 Military Specifications:
polycarbonate, or rigid polyvinyl chloride (PVC).
MIL-S-901 Shock Tests, H.I. (High Impact); Shipboard
S1.2 Direct reading sight glass indicators may consist of
Machinery, Equipment and Systems, Requirements for
glass or plastic tubes with fittings including shutoff valves.
S2.2.3 Other Government Documents: Drawings and pub-
Indirect reading indicators may consist of a sealed chamber
lications, Naval Sea Systems Command (NAVSEA)
with a magnetic float or flag indicator.
803-5184222 Gage Glass Ball Valve
S1.3 Indirect indicators are intended for use in water and
2 S8700-1385802 Level Indicator Shield
fuel service at working pressures of 2.07 MPa (300 lb/in. ) and
S9074-AR-GIB-010/278 Requirements for Fabrication
below, temperatures of 149°C (300°F) and below, and for
Welding and Inspection and Casting Inspection and Repair for
hi-shock applications. Direct indicators are intended for use in
Machinery, Piping and Pressure Vessels
hi-shock applications and shall use plastic sight tubes where
the fluid is compatible and temperatures do not exceed 66°C
S3. Terminology
(150°F). Glass tubes shall only be used for low shock appli-
S3.1 Definitions:
cationsandwherethefluidisnotcompatiblewithplastictubes.
S3.1.1 directindication—thetankfluidlevelisvisibleinthe
S1.4 Only direct-type indicators with glass tube material
glass or tube.
less than 92 cm (36 in.) in length or indirect type indicators
S3.1.2 indirect indication—the tank fluid level is contained
shall be used for hydrocarbons and flammable fluid applica-
inasealedchamberandindicatedbysomeothermeanssuchas
tions.
a float or flag actuated by a magnet contained in a float in the
fluid chamber.
S2. Referenced Documents
S2.1 Commercial Documents: S4. Design Classification
ANSI B16.5 Pipe Flanges and Flanged Fittings (DoD
S4.1 Designation—Sight glass indicator designation shall
adopted)
consist of a series of designations which shall be assigned and
ANSI/ASQC Q9001-1994 Quality Systems—Model for
listed in the format below:
QualityAssuranceinDesign,Development,Production,Instal-
Example: F 2045-SGI-D-A-PLY-PA
lation, Inspection, Testing and Servicing
F2045 SGI D A PLY PA
Specification Equipment Indication Shutoff Slight glass Application
ASTMA312/A312MSpecification for Seamless and Welded
designator valve material
Austenitic Stainless Steel Pipes (DoD adopted)
(see S4.2) (see S4.3) (see S4.4) (see S4.5) (see S4.6)
ASTM B61 Specification for Steam or Valve Bronze Cast-
S4.2 Equipment Designator—The level indicator shall be
ings (DoD adopted)
designated as SGI—Sight Glass Indicator.
ASTM B62 Specification for Composition Bronze or Ounce
2 S4.3 Indication—The type of indication desired shall be
Metal Castings (DoD adopted)
specified as follows:
ASTM B117 Practice for Operating Salt Spray (Fog) Appa-
2 D—Direct indication
ratus
I—Indirect indication
ASTMB283SpecificationforCopperandCopper-AlloyDie
S4.4 Shutoff Valves—The sight glass indicators shall be
Forging Hot-Pressed
equipped with a manual or automatic shutoff valve of the
ASTM D1784 Specification for Rigid Poly Vinyl Chloride
ball-check type depending on the type of indication specified.
PVC Compounds and Chlorinated Poly Vinyl Chloride CPVC
Valve type shall be designated as:
Compounds (DoD adopted)
A—Automatic for direct indication
ASTM D3935 Specification for Polycarbonate (PC) Unfilled
M—Manual for indirect indication
and Reinforced Material
S4.5 Sight Glass Material—The tube material of direct
ASTM D3951 Practice for Commercial Packaging
reading sight glass indicators shall be designated as follows:
MSS-SP-72 Ball Valves with Flanged or Butt-Welding Ends
GWT—Glass with teflon heat shrink tube
for General Service
PLY—Polycarbonate
MSS-SP-110 Ball Valves, Threaded Socket-Welding, Solder
PVC—Rigid polyvinyl chloride
Joint, Grooved and Flared Ends
S4.6 Application—The sight glass indicators may be used,
S2.2 Government Documents:
but are not limited to, the following applications:
S2.2.1 Military Standards:
LA—Lubricating oil and air interface
4 5
AvailablefromManufacturersStandardizationSocie
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