GasValve

Gas valves permit or prevent the flow of gas using ball, gate, plug, or other mechanisms. Valves are pressure-rated by the American National Standards Institute (ANSI). Valves designated as ‘key’ valves are critical to modeling and analysis. Indicating key valves is a Department of Transportation (DOT) requirement. Key valves may need to be inspected more often.

GasValve inherits characteristics from the abstract class GasDevice. Any model names assigned to this class should be assigned to GasValve as well.

Gas tracing requires the VALVE class model name.

Subtypes: None

Associations: ValveInspection

Model Names: VALVE

Attributes:

Field Name

Field Type

Description

ANSIPressureRating

text

Code indicating GasValve design pressure rating; domain values include 7 w.c., 8-10 psig, etc.

BondedIndicator

text

Indicates whether GasValve is bonded; domain values are Yes and No.

ClockwiseToClose

text

Indicates whether the valve is turned clockwise or counterclockwise to close it.

CPSystemStatus

text

Status of associated Cathodic Protection System.

Depth

double

Depth of GasValve.

DepthToNut

double

Depth of the nut on the GasValve.

DimensionTie1

text

Description of east–west line of feature location.

DimensionTie2

text

Description of north–south line of feature location.

EmerIsolationSysObjectID

long integer

ObjectID of Emergency IsolationSystem of GasValve.

EmerIsolationSysStatus

text

Indicates whether or not the valve is a boundary on the emergency isolation system; used by gas trace solvers.

GasPressureSystemObjectID

long integer

ObjectID of GasPressureSystem of GasValve.

GasPressureSystemStatus

text

Indicates whether feature defines a boundary of GasPressureSystem. Gas Tracing uses the GASPRESSURESYSTEMSTATUS model name.

GasSystemObjectID

long integer

ObjectID of GasSystem of GasValve.

GasSystemStatus

text

Indicates whether feature defines a boundary of GasSystem; information used for tracing analysis. Gas Tracing uses the GASSYSTEMSTATUS model name.

GroundLevelIndicator

text

Indicates whether valve is below ground level; domain values include Yes and No.

InsulatedIndicator

text

Indicates presence of insulation; domain values include Yes and No. Gas Tracing uses the INSULATEDINDICATOR model name.

LocationDescription

text

Verbal description of location of the gas valve.

Manufacturer

text

Code indicating manufacturer. The AT_MANUFACTURER model name is used on this field to configure abandon for gas.

Material

text

Code indicating material of GasValve; domain values include Cast Iron, Plastic, Steel, and Unknown. ArcFM Structural Analysis uses the MATERIAL model name on this field. The AT_MATERIAL model name is used on this field to configure abandon for gas.

Model

text

Model number specified by manufacturer. The AT_MODEL model name is used on this field to configure abandon for gas.

NormalPosition

long integer

Normal position of GasValve; domain values include Open and Closed. Gas Tracing uses the NORMALPOSITION model name.

OperatingClassification

text

Indicates classification of gas valve; domain values include critical/inspection required, critical/inspection not required, and noncritical. Gas Tracing uses the OPERATINGCLASSIFICATION model name.

Status

text

Code indicating operating status of the gas valve.

TurnsToClose

long integer

Indicates number of rotations required to close the valve.

ValveDiameter

text

Diameter of GasValve. Gas Tracing uses the PIPEDIAMETER model name on this field. The valve Display Name object requires the VALVESIZE model name on this field. The AT_VALVESIZE model name is used on this field to configure abandon for gas.

ValveType

text

Code indicating type of GasValve; domain values include Ball Valve, Gate Valve, Plug Valve, Wafer, etc.

ValveUse

text

Code indicating type of GasValve use; domain values include By-Pass, Isolation, Purge, Relief, etc.

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