title>HG/T 20519.32-1992 Legends for pipelines, fittings, valves and pipeline accessories in pipeline and instrument flow diagrams - HG/T 20519.32-1992 - Chinese standardNet - bzxz.net
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HG/T 20519.32-1992 Legends for pipelines, fittings, valves and pipeline accessories in pipeline and instrument flow diagrams
Basic Information
Standard ID:
HG/T 20519.32-1992
Standard Name: Legends for pipelines, fittings, valves and pipeline accessories in pipeline and instrument flow diagrams
HG/T 20519.32-1992 Legend of Pipes, Fittings, Valves and Pipeline Accessories in Pipeline and Instrumentation Flowcharts HG/T20519.32-1992 Standard Download Decompression Password: www.bzxz.net
Some standard content:
Pipes in Pipeline and Instrumentation Flowcharts Fittings, Valves and Pipeline Accessories HG20519.32-92 Legends of Pipes, Pipe Fittings, Valves and Pipeline Accessories in Pipeline and Instrumentation Flowcharts HG20519.32-92 This regulation is only applicable to the drawing of pipeline and instrumentation flow charts in chemical process design and construction drawings. 2Legends not listed in this regulation can be solved by the following methods. (1) Simplify the appearance and features of the actual object and compile a new legend. (2) When necessary, use a rectangular frame (or square frame) and add appropriate text descriptions to represent it. The line regulations shall be implemented in accordance with HG20519.28-92. The dimensions of the valve legend are generally 6mm long and 3mm wide or 8mm long and 4mm wide. Name Material pipeline Material pipeline Lead wire, equipment, pipe fittings, Valves, instruments, etc. Legend Original pipeline Removable short pipe Heating (ling) pipeline Electric heating pipeline Thick solid line Medium thick line Thin solid line The width of the pipeline is the same as the width of the new pipeline connected to it Jacket pipe Pipeline insulation layer Fin tube Flexible pipe Pipeline connected Pipeline crossing (not connected) Pipeline grade, pipeline number boundary Guoran Fanguo boundary Insulation layer boundary Accompanying pipe boundary Flow direction arrow Drawing connection mark of pipelines or instrument signal lines entering and exiting the device or main item, the corresponding drawing number fill in the hollow arrow Drawing connection mark of pipelines or instrument signal lines in the same device or main item, the corresponding drawing number fill in the hollow arrow The serial number of the drawing number should be filled in the hollow arrow 7777777777 ×××x XXXXXXX× Only used for drawing underground and semi-underground equipment XX×X represents the pipeline number or pipeline grade WE is supplied as a complete set with the equipment BB is the responsibility of the buyer, BV is the responsibility of the manufacturer; BS is the responsibility of the seller: BI instrument professional is responsible for the insulation layer boundary line identification letter "x" is the same as the medullary thermal layer function type code The identification letter "x\" of the accompanying pipe boundary line is the same as the The function type code of the accompanying pipe is the same Dimension unit, mm Indicate the equipment position number, pipeline number or instrument position number above the hollow arrow Dimension unit, mm Indicate the equipment position number, pipeline number or instrument position number of the hollow arrow Special pipe (valve) Parts number box Stop valve Throttle valve Plug valve Diaphragm valve Angle stop valve Angle throttle valve Angle ball valve|| tt||Three-way stop valve Three-way ball valve Three-way plug valve Four-way check valve Four-way ball valvewww.bzxz.net Four-way plug valve A dare to model 3V lucky new door SP, special pipe diameter i0mm Lift check valve Swing positive return valve Pressure reducing valve Angle spring safety valve Angle heavy hammer safety valve Sulfur-dispersing water valve Direct flow check valve Breathing valve Flame arrester|| tt||Sight glass, sight clock Silencer Silencer Flow limiting orifice Burst disc (Multi-plate) (Single plate) Min outlet pipe is Shuizi River Merchant Valve outlet pipe is horizontal In the pipeline Enlarge the gas Four diameters 10m Ejector Venturi tube Y-type filter Cone filter T-type filter Canister (basket) filter||t t||Pipe mixer Expansion joint Spray pipe Welding connection Threaded pipe cap Flange connection Hose connector Blind plate at pipe end Flange at pipe end (cover) Square box 5mm×5mm Square box 5mm×5mm Square box 5mm×5mm Only used to indicate that the pipe mouth of the equipment and the pipeline are welded Concentric reducer Eccentric reducer Round plate 8 Blind plate Vent cap (tube) Safety shower Eyewash (bottom flat) (normal open) <normal closed) (cap) (proud mouth) (top flat) (normal closed) (normal open) (tube) (closed) Do not close without approval (locked or sealed) Do not open without approval (locked or sealed) Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.