7/26/2019 Valves Terminology and Symbols

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10750 CORPORATE DRIVE STAFFORD, TEXASBV-54

AFS American Foundrymen's SocietyAGA American Gas AssociationANSI American National Std. Institute

ASME American Society of Mechanical EngineersASTM American Society of Testing & MaterialsAWWA American Water Works AssociationBB Bolted BonnetBFV Butterfly ValveBHN Brinell Hardness Number BTU British Thermal UnitBW Butt WeldBWE Butt Weld EndsC Celcius DegreesCxC Copper to Copper CDA Copper Development AssociationCI Cast IronCr 13 13% Chromium Stainless SteelCSA Canadian Standards Association

DD Double DiscDI Ductile IronF Fahrenheit DegreesFE Flanged EndFF Flat FacedFM Factory Mutual LaboratoriesFOB Free On BoardGPM Gallons Per MinuteHg Hydragyrum (Mercury)HB Brinell HardnessHRC Rockwell C HardnessIBBM Iron Body Bronze MountedID Inside Diameter IPS Iron Pipe SizeISNRS Inside Screw Non-Rising Stem

ISO International Standards OrganizationISRS Inside Screw Rising StemMSS Manufacturers Standardization SocietyMTR Material Test Report

NPT National Pipe Taper (Pipe Thread)NSR Non-Rising StemOD Outside Diameter OS&Y Outside Screw and YokePN Pressure Nominal (Metric)PSI Pounds Per Square InchPSIA Pounds Per Square Inch AbsolutePSIG Pounds Per Square Inch GagePT Pressure TemperatureRc Rockwell "C"RF Raised FaceRPM Revolutions Per MinuteRS Rising StemSB Screw-In-BonnetSE Screwed EndsSJ Solder JointSS Stainless SteelSTD StandardSWP Steam Working PressureTRIM Certain Valve Parts Stems, Seats, Etc.UB Union BonnetUL Underwriter's LaboratoriesWOG Working Pressure: Water, Oil and GasWSP Working Steam PressureWWP Water Working Pressure

VALVE SELECTION GUIDE

GATERecommended for: Full Open/Closed Service

Minimal Line Pressure Drop

Infrequent Operation

GLOBERecommended for:

Throttling of flow

Frequent Operation

Service with some line resistance to flow

Angle Valves offer less resistance to flowthan valve and elbow.

CHECKRecommended for:

Control of direction of flow and quickautomatic reaction to flow change.

Use in conjunction with gate valve.

They should not be used in air compressorservice or on a reciprocating pump as theseservices will cause chattering and valvevibration damage.

BALLRecommended for:

On and Off service or throttling of flow

When positive shut-off is necessary

When low valve profile is necessary

Quarter turn operation - 90 rotation from fully open/fully

closed

Easily adapts to automation

Handle position is a quick indication of whether valveis open or closed.

Full port ball valve design offers no resistance to flow.

BUTTERFLYRecommended for:

Positive shut-off is necessary

Fully open or fully closed applications(may be used for throttling applications)

Quarter turn operation - 90 rotation from fully

open/fully closed

Easily adapts to automation

Light weight design offers easy installation

Replaces costly Iron body gate valves

VALVE TERMS AND PIPING SYMBOLS

VALVE & FITTING INDUSTRY ABBREVIATIONS

V

ALVETERMS&P

IPINGSYMBOLS

-ABBREVIATION

S