This standard is formulated with reference to the international standards ISO/DIS 538 "Shipbuilding - Common symbols for ventilation and piping installation drawings"; ISO/R 538-67 "Common symbols for ship piping installation drawings"; ISO/R 784-68 "Common symbols for ship sanitary system installation drawings". GB 4791-1984 Graphic symbols for ship piping accessories GB4791-1984 Standard download decompression password: www.bzxz.net
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UDC 629.12.61:003.62/63 National Standard of the People's Republic of China GB4791-84 Graphical symbols of pipeline accessorysystems in ships Published on 1984-11-26 Standard of the kitchen Implemented on 1985-11-1 National Standard of the People's Republic of China Graphieal symbols of pipeline accessorysystems in ships GB 4791 :-84 This standard refers to the international standards ISO/DIS538 "Symbols for Installation Drawings of Ventilation Duct Systems": ISO/R538-67 "Common Symbols for Installation Drawings of Pipe Systems": ISO/R784-68 (Shipbuilding System Installation Symbols). The drawings should use the numbers in the table as much as possible. When necessary, the numbers should be used. Except for 9.3, 9.9, and 9.10 of this standard, the numbers are newly added. All the numbers of the drawings of the piping components listed in this standard can be added to the drawings with additional instructions. The special graphic numbers in the hydraulic system (circuit) drawings are all in accordance with the national "Drawing Numbers" When drawing large-scale dimensions (such as 1: 100) When drawing the second drawing, use the graphic symbols specified in this standard to simplify the drawing according to the actual situation. 1 Basic technical symbols according to Table 1. Installation flow meter Technical table Along the exciting medicine test 4 according to Table National Bureau of Standards 1B4-11-26 Release 1985-11-0t Practical travel Pipe one and paragraph: joint sample write dial and 2. IS0 on this path Single pipe Teaching Department Management Dazhou Connection Capital Yisa Connecting liquid transformer and pipe T Haizi Downward pipe According to the medical head Butterfly joint GB4791 --84 *IsO Flange joint Quick joint Check joint Frame flexible joint Expansion joint Sliding expansion joint Yiwei expansion joint Note||Abbreviation GB 4791--84 Continuation table 2 *1so symbol, Reduced expansion joint Screw cover (calcium tower) Flange reduction (hundred method) Double joint flange Wine quality (Beijing rate 1 Wine quality (non-secret)wwW.bzxz.Net Single board Xi pipe barrier GB 4791--84 Continued Table 2 3 Symbols for gate valves and lubrication boxes are shown in Table 3. H pass 2 company year verification electric communication point direct inquiry communication fishing deadline word reading time load stop positive network birth Yuezhou s selection number GB 4791-84 , please do not flow in front, the group does not need to give the mountain Li number on the design drawing level Zhuohai Zhengguo brand Zhuohai Zhengguo brand Zhentong wave design Keyan wave-proof attachment source reduction valve *s0 center number GB4791-84 Continued table 3 ·New meaning indication flow, it is necessary to include it in the design drawing bag. Two signal pass||safety when direct|||limit fast||direct cannot||or piece piece fast angle GE 4791-84 replacement3 area one must||point||flow value not||point||in the design drawing,3.28 official source 1rush suction road road cutoff:1stop road swing layer effect box 1s0e year GB 4TF1—B4 *+English and French finger card flow from: do not need to shoot my plan to report the mountain, 8 4 control and adjustment elements and other guide according to Table 4. No principle operation GE 4791-84 GB4791-84 Continued Table 4 5 control language element mark can be used in combination with the part symbol, its example is shown in Table 5. Cut 5 Remote operation through fee small example Remote operation solution through cut stop width Float direct sensitive stop stroke Active system through the upper ring Mold high return interest stop valve Fixed point through load stop adjustment *Jsot number Spare The symbol of the plug is as shown in Table 6. Self-opening male plug Direct-swing rotary L-type rotary plug Three-way T-type rotary plug Four-way four-way rotary plug Four-way two-way four-way rotary plug Bottom-connected type rotary plug Direct-through bottom-connected type rotary plug Angle bottom-connected type Two-way bottom-connected rotary plug IS0 does not have this symbol. GB4791—B4 Standby 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.