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1、UDC 003.6:621.646.2 JIS JAPANESE INDUSTRIAL STANDARD General rules for marking on valves . Translated and Published by Japanese Standards Association Printed in Japan 10 s J I S B*2004 4 D 4933b08 0526234 Ob8 I In the event of any doubt arising, the original Standard in Japanese is to be final autho
2、rity. -,-,- JIS B*ZOOq 94 D 4733608 0526235 TT4 I UDC 003.6: 621.646.2 JAPANESE INDUSTRIAL STANDARD J I S General rules for marking on valves B 2004-1994 1. Scope marking on valves specified in JIS B (mechanical engineering) division. This Japanese Industrial Standard specifies the general rules for
3、 Remarks 1 . 2. 3. 2. Definitions It is preferable to apply also to the valves of other divisions. The standards cited in this Standard are given in Attached Table 6. The International standards corresponding to this Standard are given in the following: IS0 5209-1977 General purpose industrial valve
4、s - Marking IEC 534-5-1982 Industrial-process control valves, Part 5 : Marking For the purposes of this Standard, definitions specified in JIS B O100 apply and for others the following apply: mandatory marking item valves. Marking item necessarily to be marked on optional marking item standard of in
5、dividual valve. Marking item specified by selecting in product Marking General items General items of marking shall be as given in the follow- The marking shall be of size and shape adequate to the valve, be carried out according to a reasonable method relating to the structure and strength, be read
6、 out clearly, and be endurable. The application division of marking items is shown in Attached Table 1 . The marking positions and marking methods of marking items are shown in Attached Table 2. Marking items other than those specified in this Standard shall be in accordance with the specifications
7、of individual product standard. Marking items The marking items shall be as given in the following: Manufacturers name or trademark abbreviation may be used. Nominal messure For the manufacturers name, the Nominal size generally be used. However, for screwed end valve, nominal size series B may be u
8、sed. Nominal size series A specified in JIS B 2001 shall -,-,- 2 B 2004-1994 Materials of valve body and bonnet bonnet shall be marked by using the symbol expressing the material or its The materials of valve body and abbreviation, and for abbreviation the marking symbol shown in Attached Table 3 sh
9、all be used. Arrow mark indicating flow direction of fluid Valves which can be used only in one direction relating to flow direction of fluid shall be marked with arrow mark indicating the flow direction of fluid. Letters and arrow marks indicating open and shut The letters and arrow marks indicatin
10、g open and shut shall be as given in the following: (a) Letters and arrow marks indicating open and shut shall be marked in combination. (b) In the case of the valve incapable of being marked with both direc- tions of open and shut owing to its size, shape, etc., only the open direction may be marke
11、d. The letters indicating open and shut directions shall generally be in accordance with the following: H IY OPEN SHUT O S (c) Year of manufacture Manufacturing number which the history of the product can be identified. Melt identification Materials of trim valve seat, etc. shall be marked by using
12、marking symbol shown in Attached Table 4 . Materials of bonnet bolts and nuts nuts shall be marked by using marking symbols shown in Attached Table 5. Type of screw thread of connection end Uses of valve ing the use of valve specified in product standard. Example: In the case of use for water works
13、WATER The manufacturing number shall be that by For the melt identification, a symbol may be used. Materials of trim of the valve such as valve stem, The materials of bonnet bolts and The uses of valve shall be marked with the symbol indicat- In the case of cast steel valve For general mechanical ap
14、paratus, M For chemical apparatus, C Ring number ring joint type, the ring number of ring joint gasket shall be marked. Materials of lining and coating coating shall be marked. Maximum working temperature valve under the ordinary working condition shall be marked. In the case where the both end flan
15、ges or bonnet flange is The material and the like of lining and The maximum working temperature of The temperature shall be marked by O C . JIS B*2004 74 9 4933b08 052b237 877 3 B 2004-1994 ( 17) Maximum permissible working pressure The maximum permissible work- ing pressure corresponding to the max
16、imum working temperature of valve shall be marked. For the pressure unit, MPa shall be used., (18) Capacity coeficient The capacity coefficient shall generally be marked (19) Maximum flow velocity The maximum flow velocity shall be expressed by any one ofAv, Kv or Cv, when the valve is fully opened.
17、 by the average flow velocity corresponding to sectional area equal to nominal size of valve at the maximum value of permissible flow velocity when the valve is fully opened. The unit shall be d s . 3.3 Marking position ing: The marking position shall be as given in the follow- (1) (2) Marking on va
18、lve body shall be on an easily visible surface of the valve body. An identification plate shall be attached to the easily visible position such as surface of valve body, surface of bonnet, yoke, upper surface of handle, surface of operating machine, etc. Marking on handle shall be made on an easily
19、visible surface of the handle. Bolts shall be marked on end surface, and nuts, on upper surface or side surface. (3) (4) 3 . 4 Marking methods ing: The marking methods shall be as given in the follow- (1) Marking shall be carried out according to any one of methods (I) of casting, carved stamping, f
20、orging out or identification plate. Note (l) Faucets may be marked according to corrosion (etching), printing or sand blast. Marking appearing not clearly may be corrected or reproduced according to an adequate method. In the case of carrying out carved stamping, any adverse effect which causes fiss
21、ures or makes the part less than the permissible thickness shall not be given to the valve. providing the stamping seat. the like, the method by press marking may also be used. The identification plate shall generally be in accordance with JIS Z 8304, and be attached according to such suitable metho
22、d that it does not fall down easily. (2) (3) Further, in case where these problems exist, it shall be marked by In case where the stamping is impossible due to resin-powder coating or (4) -,-,- JIS B*2004 94 m 4933bU8 052b238 703 I 4 B 2004-1994 Further, the material of identification plate shall be
23、 specified in indi- vidual standard. Related standards: JI$ B 2011 JIS B 2031 JI$ B 2032 JIS B 2051 JI$ B 2071 JIS B 2191 Bronze gate, globe, angle and check valves Gray cast iron valves Wafer-type rubber-seated butterfly valves Malleable iron 10 K screwed valves Cast steel flanged valves Screwed br
24、onze plug cocks and gland cocks -,-,- J I S B*2004 94 9 4733b08 052b239 b4T I Marking item 1. Manufacturers name or trademark 5 B 2004-1994 Bronze Cast iron valve (3) Cast steel valve and (I, For general For water steel forg- use (4) works (9 ing valve O O O O Attached Table 1. Application division
25、of marking items 6. Letters (or abbreviation) and arrow mark indicating open and shut 7. Year of manufacture O O n O n n O o (9 2. Nominal pressure lolololo 11. Materials of bonnet bolts and nuts 12. Type of screw thread of connection end 13. Uses of valve 14. Ring number 15. Materials of lining and
26、 coating 16. Maximum working temperature 17. Maximum permissible working pressure 18. Capacity coefficient 3. Nominal size lolololo - n O a n - n - - O a O - n n n n n n n a n n n n n n - - - - - 4. Materials of valve body and bonnet I - I O I O I O 19. Maximum flow velocity lolololo 5. Arrow mark i
27、ndicating flow direction of fluid a n n n 8. Manufacturing number 9. Melt identification 10. Materials of trim InInInIo Notes (1 Remarks: Except those in accordance with JIS B 2061. Marking of faucet may be carried out only by manufacturers name or trademark. Materials of cast iron valve shall be gr
28、ey cast iron, black heart malleable cast iron (including malleable iron), and spheroidal graphite cast iron (including ductile iron). It is the cast iron valve to be used for general piping passing vapour, air, gas, water, oil, etc. It is the cast iron valve for water works in accordance with JIS B
29、2062, JIS B 2063, JIS B 2064, etc. Instead of year of manufacture, the manufacturing number may be marked. The valve made of carbon steel having nominal pressure of 63 K or more and alloy steel valve shall be the mandatory marking item. O mark indicates the mandatory marking item, A mark, the option
30、al marking item, and - mark, not applicable. -,-,- J I S B*2004 94 = 4933b08 052b240 3bl I Valve body Casting Forging Casting Carved Forging- Carved stamp out stamp 6 B 2004-1994 Identifica- tion plate Accord- ing to 3*4 (4) Attached Table 2. Marking position and marking method of marking item 0% 0%
31、 0% Marking positior . 0% * 0% * 0% * Marking Marking item O O 1 . Manufacturers name or trade mark O O O O O O O O 2 . Nominal pressure O 3 . Nominal size O O O O O O O O O O 4. Materials of valve body and bonnet 5. Arrow mark indicating flow direction of fluid 6. Letters (or abbreviation) anc arro
32、w mark indicating open and shut 7 . Year of manufacture 8, Manufacturing number 9: Melt identification 10. Materials of trim 11. Materials of bonnet bolts an1 12. Type of screw thread of 13. Uses of valve nuts connection end 14. Ring number 15. Materials of lining and 16. Maximum working coating tem
33、perature 17. Maximum permissible working pressure 18. Capacity coefficient 19. Maximum flow velocity 0% I I O%l I* 0% I I O % I I Bolt and out or carved + t Remarks 1. O mark indicates the marking position and marking method of marking item. 2. In the case where the marking position is duplicate, se
34、lect the position most suitable for marking and mark at least on one place. 3. In the case where marking method to be applied to valve body is duplicate, select the method most suitable for marking. 4. % mark indicates that only in case where this method (casting or forging- out) is impossible due t
35、o size, shape, etc. of valve, the method by carved stamp may be used. 5. * mark indicates that only in case where the marking of valve body is impossible due to size, shape, etc. of valve, it may be marked on an identification plate. -,-,- J I S B*2004 94 W 4933b08 052bZ4l 2T8 I Division of material
36、 Marking symbol Casting Forging Bronze Not required - Grey cast iron Not required - Black heart MI - 7 B 2004-1994 Corresponding material Casting Forging BC6 of JIS H 5111 FC200 of JIS G 5501 FCMB340 of JIS G 5702 - - - MIS - - FCMB-S35 of JIS B 8270 Spheroidal graphite cast iron Carbon steel I PH2
37、I Fvc I SCPH2 ofJIS.G5151 I SFVC2AofJIS G3202 DI (9 - FCD400 or FCD450 of - JIS G 5502 - DIS - FCD-S of JIS B 8270 Carbon steel (for low I PL1 I FL1 I SCPL1 of JIS G 5152 I SFL1 of JIS G 3205 2.5 Ni steel 3.5 Ni steel 0.5 Mo steel 1Cr-O.5Mo steel 2.5Cr-1Mo steel temperature) PL2 1 - SCPL21 of JIS G
38、5152 - PL31 FL3 SCPL31 of JIS G 5152 SFL3 of JIS G 3205 PH11 F1 SCPH11 of JIS G 5151 SFVAF1 of JIS G 3203 PH21 F11A SCPH21 of JIS G 5151 SFVAF11A of JIS G 3203 PH32 F22B SCPH32 of JIS G 5151 SFVAF22B of JIS G 3203 I SFL2 of JIS G 3205 5Cr-0.5Mo steel SFVAF5B or SFVAF5D PH61 F5B SCPH61 of JIS G 5151
39、ofJIS G 3203 18Cr-8Ni steel 18Cr-12Ni-Mo steel S13A F304 SCS13A of JIS G 5121 SUSF304 of JIS G 3214 S14A F316 SCSMA of JIS G 5121 SUSF316 of JIS G 3214 Remarks 1. For marking symbols, symbols shown in this Table shall, generally, be used. However, excepting those of new design, the material symbol s
40、pecified in JIS or the symbol specified by manufacturer may be used. The symbol specified by manufacturer shall be the symbol which indicates clearly the material. 2. Even in the case of using material other than those shown in this Table, the marking symbol in accordance with this Table, as appropr
41、iate, shall be used. J I S Bt2004 94 m 4933b08 052b242 234 Division of material 8 B 2004-1994 Marking symbol Attached Table 4. Marking symbols of materials of trim Soft seat (polytetra- fluoroethylene, rubber, etc.) Corresponding material (“1 Casting Rolled or extruded copper, steel bars, steel plat
42、es and steel forgings C3604BD or C3604BE, otherwise C3771BD or C3771BE of JIS H 3250 Not required Brass BC6 or BC6C of JIS H 5111 Bronze I z u i r e d 13Cr steel SCS1 or SCS2 of JIS G 5121 SUS403 or SUS410, otherwise SUS42OJ1 or SUS42OJ2 of JIS G 4304 CR13 (13CR) SCS13 or SCS13A of JIS G 5121 SUS304
43、 of JIS G 4303, SUS304 or SUS305 of JIS G 4304 or SUSF304 of JIS G 3214 18Cr-8Ni steel 304 (18-8) SCSl4 or SCS14A of JIS G 5121 SUS316 of JIS G 4303 or SUSF316 of JIS G 32 14 316 18Cr-12Ni-Mo steel (18-12) Ni-Cu steel Standard of manufacturer MONEL (NI-CU) SH 9 F Surface hardening Surface cladding h
44、ardening by different metal Other hardening treatment (nitriding, or the like) Surface rust preventive treatment Chromium PLANTED (9 plating + Other treat- (9) (O Notes (9) The base metal material shall be appended. specified by the manufacturer shall be used. However, the symbol confusing with the
45、marking symbol used in this Standard shall not be used. manufacturer shall be used. However, for the marking symbol specified by the manufacturer, the symbol confusing with the marking symbol used in this Standard shall not be used. (lo The treating method shall be clearly stated, and the marking sy
46、mbol (11) The marking symbol specified by the product standard or by the -,-,- 9 B 2004-1994 Not required Not required Not required Not required Remarks 1. Among the marking symbols, the marking symbol in parentheses should preferably not be used, as far as possible. 2. Even in the case of using mat
47、erial other than that of this Table, the marking symbol in accordance with this Table, as appropriate, shall be used. SS400 of JIS G 3101 SS490 of JIS G 3101 S25C of JIS G 4051 S35C of JIS G 4051 Attached Table 5. Marking symbols of materials of bonnet bolts and nuts B7 B 16 ra 42 d O m SNB7 of JIS
48、G 4107 SNB16 of JIS G 4107 ra c, Marking symbol1 Corresponding material Not required I SUS304 of JIS G 4303 316 I SUS316 of JIS G 4303 Not required I SS400 of JIS G 3101 45c I S45C of JIS G 4051 Not required I SUS304 of JIS G 4303 3 16 I SUS316 of JIS G 4303 Not required I C3604BD or C3604BE of JIS H 3250 Remarks 1. In case where marking of three letters in mark- ing symbol is impossible, it may be substituted by other marking symbol depending on agree- ment between the parties concerned with delivery. However, the symbol confusing with the marking