HG/T 20519.27-1992 Commonly used abbreviations for pipelines HG/T20519.27-1992 Standard download decompression password: www.bzxz.net

Commonly used abbreviations for pipelines
HG 20519.27-92
Commonly used abbreviations for pipelines
HG 20519.27-92
This regulation is used in design drawings and tables. It aims to unify the use of abbreviations and solve the problem of insufficient space on the drawings and simplification of the representation method. For the text part of the technical document, if it is difficult to understand the meaning of the abbreviation, the abbreviation should be avoided. If it must be used, it should be annotated (except those marked with an asterisk). This regulation only includes commonly used abbreviations in the pipeline profession, and does not include abbreviations for fluids and commonly used unit symbols. Abbreviations (ABBREVIATIONS)
APPROX
Anchor
* Absolute
* American Iron and Steel Institute*American National Standards Institute* American Petroleum Institute*Approximate
*American Society of Mechanical EngineersAmerican Society ofTesting Material* Atmosphere
* American Wire Gage
* American Welding Society||tt| |*AmericanWaterWorksAssociationBolted Bonnet
By Buyer
Beveled End-Beveled End
Bolt Circle
Bolted Cover (Cap)
Beveled End (for welding)
Bell End
Both Ends Plain
Both Ends Threaded
Absolute
American Iron and Steel Institute
American National Standards Institute
American Petroleum Institute
Approximate
American Society of Mechanical Engineers
American Society for Testing and Materials
Atmospheric Pressure
American Wire Gauge
American Welding Society
American Hydraulic Works Association
Bolted Valve Bonnet
Buyer Supplied
Bolted End-Plain End
Bolted Center Circle Diameter
Bolted Valve Bonnet
Beveled End (For Welding)
Bolted Ends
Threaded Ends
Blind Flange
Battery Limit
Bottom of Pipe
Beveled End-Plain End
Butterfly valve
* Birmingham Wire Gage
Butt Weld
Center to Center
Center to Fare
Checkered Plate
* Cast Iron
Continued on Drawing
*Column
Concentric
Connection
*Continue| |tt||Control Valve
Coupling
Concentric Reducer
* Carbon Stee!
Cold Spring
Car Seal Close
Car Seal Open
*Degree
Drain Funnel
* Diameter
* Dimension||tt| |* Dischaxge
* Nominal Diameter
Directional Stop
Flange cover
Boundary of installation area
Grooved end·Flat end
Birmingham wire gauge
Middle to middle
Middle to surface
Middle to surface
Pattern steel plate
Connection diagram
Column·Tower
Concentric
Connection·Interface
Control valve
Pipe joint·Coupling
Concentric Shun-diameter pipe
Seal in closed state
Seal in open state
Drain funnel
Outlet, discharge
Nominal diameter
Directional stop frame
EL(ELEV)
FLEX. TUBE
* Drawing
External Coating | |tt |
Face to Face
Fusion Gas Welding
Figure
Flexible Tube
Flange
Flanged
Flagned Face
Flat On Bottom
Flat On Top
Fix Point
Forged Steel
Fitting to Fitting
Fitting
Field Weld
* Gage
* Galvanize
Ground Level
External anti-nest roof
Eccentric
Electrofusion
Elevation; elevation
Equipment, equipment
Eccentric reducer
Electroceramic welding
Eyewash and shower
Expansion joint
Heat exchanger
Full plane
Face to face
Gas fusion welding
Flexible pipe
Flange
Flange face
Bottom plane
Top surface
Fixed point
Direct connection of pipe fittings
On-site welding
Gas gauge, gauge pressure, gauge (wire gauge)
Globe Valve
Gas Matal Arc Welding
Gasket
(Inert)Gas Tungsten Arc WeldingGate Valve
Hanger
Hoxe Connection
Half Coupling
Header
* Hexagon
Hard Alloy Face On Valve TrimHand Hole
Horizontal

Hose Station
* Inside Diamerer.
* Inch
Insulation
Instrurnent
Isometric Drawing
Inside Battery Limit
Jack Serew
Locked Closed|| tt||Large End Plain
Large End Threaded
Left Hand Thread
Lap Joint
Lap Joint Flange
Low Pressure
Long Radius
Long Radius Elbow
Stop valve
Metal inert gas welding
Inert gas tungsten arc welding
Hose connector
Half pipe connector| |tt||Hexagonal
Carbide seal
Horizontal
Hose station
Axonometric view (empty view)
Device boundary Inside
Open (lift) bolt
Locked in closed state
Big end is flat
Big end is threaded
Left thread|| tt||Loose Flange
Long Radius
Long Radius Elbow
NO INS
ORIENT
Large Tongue & Groove
+Maximum
Machine Bolt
Male and Female
Manhole
Malleable Iron
* Minimum
Mechanical Joint
Match Line
+ Manufacturers Standardization SocietyMaterial Take-off
Minimum Wall
Mineral Wool
*North
Nominal Bore
Normally Closed
Nipple||tt| |Normally Open
No Insuiation
Nominal
Nozzle
Nominal Pipe Size
Net Positive Suction Head
* American National Taper Pipe ThreadNeedle Valve
Net Weight
+OutsideDiameterwwW.bzxz.Net
One End Threaded
Orifice
Orientation
Piping Arrangement Plan
Machine Bolt (Single Head)||tt ||Embossed and written
Mallet cast iron
Mechanical joints
Connectors
Manufacturers Standardization Association
Material statistics
Minimum wall thickness| |tt||Mineral wool
Nominal aperture
Not insulated
Nominal, rated
Nominal pipe diameter
Net positive suction Pressure head
American taper pipe thread
Needle valve
One end with thread
Pipeline layout plan
RH TH'D.
Pressure Seal Bonnet
Plain End-Bevel End
.Pressure Seal Cap
Pitch Circle Diameter
Plain End (not beveled)
Platform
Piping &.Instrument Diagram* Nominal Pressure
Plant North
Point of Support
Plain End-Plain End
Preparation
* Pounds Per Square Inch Absolute* Pounds Per Square Inch GagePounds Per Square Inch
* Polytetrafluoroethylene
Plug Valve
Polyvinyl Chloride
Plastic
*Quantity
*Radius||tt ||Reducer
Reference
Reinforce
* Revision
Raised Face
Ring Gasket
Right Hand Thread
Ring Joint
Restriction Orifice
* Revolutions Per Minute
* Revolutions Per Second
Resting Support
Ring Type Joint
Pressure-sealed bonnet
Flat-beveled end
Pressure-sealed bonnet
Pitch diameter
Flat end (no bevel)
Pipeline and instrument flow chart
Nominal pressure
Factory north|| tt||Support point
Both ends are flat
Processing preparation
Pounds/inch (absolute)
lbs/inch gauge
lbs/inch2
PTFE
plug valve
PVC
reducing pipe||tt ||Ring gasket
Right thread
Ring gasket joint
Flow restriction orifice
rpm
rpm/sec
Support frame, sliding frame
(see RJ)
Relief Valve
* South
(Automatic)Submerged Arc WeldingStud Bolt
Sample Cooler
Schedule
Screwed
Small end Plain||tt ||Small End Threaded
Sight Glass
Sketch
Shielded Metal Arc Welding
Seamless
Swaged Nipple
Slip-On|| tt||Slip-On Flange
* Specification
Sound Pressure Iever
* Square
Short Radius
Short Radius Elbow
* Stainless Steel
Steam Trap
* Standard
Small Tonque & Groove
Steam Tracing
Suction
Safety Valve
Socket Weld
Symmetrical
Trolley Beam
Threaded End
Safety Drain Valve
Automatic Submerged Arc Welding
Stud Bolt
Sampling Cooler
Pipe Wall Thickness Series No.
Small end is flat
Small end is threaded
Shielded metal arc welding
Reducing short pipe
Slip-on flange| |tt||Regulations, instructions
Sound pressure level||tt ||square, square
short radius
short radius elbow
stainless steel
steam trap
small groove surface
steam Heat tracing
Suction port
Safety relief valve
Socket welding
Forging, die forging
Symmetrical
Crane beam|| tt||Threaded end
* Temperature
Tongue & Groove
* Threaded
* Thickness
Tangent Line
True North
Top Of Concrete
Top Of Pipe
Top Of Support
Top Of Steel
Typical
Union Bonnet
Union Cap
Vacuum
Vertical
*Volume
Weld Branch
Weld Cap
Weld End
Welding Line
Welding Neck
Weld Neck Flange
Working Pressure
Working Point
Wall Thickness
Extra Heavy
Double Extra Heavy
Extra Strong
Threaded
True North
Concrete Top
Bracket Top||tt| |Steel structure top
Typical
Bonnet with union
Bonnet with union
Union
Vertical|| tt||Volume, volume; capacity, volume
Welded branch pipe
Welded pipe cap
Welded end
Welded line
Butt-weld flange|| tt||Butt welding flange
Working pressure
Working point
Reinforced, thickened
Double reinforced (thick)
Reinforced
Double Extra Strong
Yield Point
Pounds
Diameter
Angie （ Shape)
Channel(L Shape)
I-Beam||tt ||Wide Flange
Center Line
Double Reinforced
Service Point
I-Beam
Wide Flange I-Beam||tt| |Center LineThreaded
* Thickness
Tangent Line
True North
Top Of Concrete
Top Of Pipe
Top Of Support||tt| |Top Of Steel
Typical
Union Bonnet
Union Cap
Vacuum
Vertical
*Volume
Weld Branch
Weld Cap
Weld End
Welding Line
Welding Neck
Weld Neck Flange
Working Pressure
Working Point
Wall Thickness
Extra Heavy
Double Extra Heavy
Extra Strong
Threaded
True North
Concrete Top
Bracket Top
Steel Top
Typical||tt ||Bonnet with union
Bonnet with union
Union
Vertical
Volume, volume; capacity, volume
Welding branch pipe
Welding pipe cap
Welding end
Welding line
Butt welding flange
Butt welding flange
Working pressure| |tt||Working Point
Reinforced, Thickened
Double Extra Strong
Reinforced
Double Extra Strong
Yield Point
Pounds
Diameter
Angie （ Shape)
Channel(L Shape)
I-Beam
Wide Flange||tt ||Center Line
Double-strengthened
Service point
I-beam
Wide flange I-beam
Center lineThreaded
* Thickness
Tangent Line
True North
Top Of Concrete
Top Of Pipe
Top Of Support||tt| |Top Of Steel
Typical
Union Bonnet
Union Cap
Vacuum
Vertical
*Volume
Weld Branch
Weld Cap
Weld End
Welding Line
Welding Neck
Weld Neck Flange
Working Pressure
Working Point
Wall Thickness
Extra Heavy
Double Extra Heavy
Extra Strong
Threaded
True North
Concrete Top
Bracket Top
Steel Top
Typical||tt ||Bonnet with union
Bonnet with union
Union
Vertical
Volume, volume; capacity, volume
Welding branch pipe
Welding pipe cap
Welding end
Welding line
Butt welding flange
Butt welding flange
Working pressure| |tt||Working Point
Reinforced, Thickened
Double Extra Strong
Reinforced
Double Extra Strong
Yield Point
Pounds
Diameter
Angie （ Shape)
Channel(L Shape)
I-Beam
Wide Flange||tt ||Center Line
Double-strengthened
Service point
I-beam
Wide flange I-beam
Center line
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