JB/T 6496-1992 Valve structural elements Stuffing box dimensions JB/T6496-1992 Standard download decompression password: www.bzxz.net
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Mechanical Industry Standard of the People's Republic of China JB/T6496-1992 Valve Structural Elements 1992-12-25 Issued Stuffing Box Dimensions 1993-07-01 Implementation Issued by the Ministry of Machinery and Electronics Industry of the People's Republic of China Mechanical Industry Standard of the People's Republic of China Valve Structural Elements 1 Subject Content and Scope of Application Stuffing Box Dimensions This standard specifies the structural type and dimensions of wide-valve stuffing boxes. JB/T6496-1992 This standard applies to general valves with nominal pressure pv0.10~16MPa and nominal diameter Dn6~1800mm. 2 Referenced standards Asbestos packing JB1712 JB1713 Packing pad (I) 3 Types and sizes 3.1 The structure of the compression sleeve type stuffing box for nominal pressure pn2.5MPa and nominal diameter D6~150mm of ammonia packing is shown in Figure 1. The dimensions are as specified in Table 1 D(H11)Www.bzxZ.net Approved by the Ministry of Machinery and Electronics Industry on December 25, 1992CX 45° Implemented on July 1, 1993 Rod thread size Tr28×5 Tr36×6 Tr40×6 JB/T 64961992 M20×2 M24×2 M27×2 M33×2 M39×2 M48×2 M52×2 The structural type of the stuffing box of the 5mm gray cast iron stop valve is shown in Figure 2. It is used for the nominal pressure pN1.6MPa: nominal diameter D%15~65 The size is as specified in Table 2 The rest Logic 0.5×45° Cx45° Z(number of packing circles) wide rod thread diameter D(H11) d(H11) M30×2 M33×2 Used for nominal pressure p0.10~6.4MPa, nominal diameter D%32~1800mm general valve stuffing box structure type as shown in Figure 3, size according to the provisions of Table 3. A type is used for asbestos packing, 1B type is used for plastic packing. Rod screw Total diameter C×45° Z(number of packing turns) ≥1:20 Packing pad D(H11) d(H11) JB/T 64961992 d(H11) ,2-do(6H) 2(Number of packing countries) Asbestos packing Plastic packing JB/T64961992 3.4 Applicable to the structural type of ductile iron ceramic door stuffing box with nominal pressure p1.6~4.0MPa and nominal diameter D50~800mm as shown in Figure 4, and the size is as specified in Table 4 The rest 9 C× 45° Z(filling circle number) Wide rod thread D(H11) Note: 1) L and are reference dimensions 2) H and Z are only applicable to JB1712 and JB1713. L 3.5 is used for the structural type of cast steel gate stuffing box with nominal pressure px1.6~6.4MPa and nominal diameter D~50~300mm as shown in Figure 5, and 4 dimensions are as specified in Table 5. 2(packing western number) rod thread note: dimensions D and H are determined by design, additional instructions: JB/T64961992 D(H1I) this standard is proposed and managed by the Hefei General Machinery Research Institute of the Ministry of Machinery and Electronics Industry, and the rest this standard is drafted by the Hefei General Machinery Research Institute of the Ministry of Machinery and Electronics Industry and the Beijing Yuemen Research Institute. The main drafters of this standard are Zhang Huayou, Hong Miancheng, Lu Peiwen, and Wang Jingxin. b This standard will be invalidated from the date of implementation of JB170475, JB170775, JB171075, and JB174575 mm People's Republic of China Mechanical Industry Standard Valve Structural Elements Stuffing Box Dimensions JB/T 64961992 Published by the China Academy of Mechanical Science Printed by the China Academy of Mechanical Science (No. 2, Shouti South Road, Beijing Postal Code: 100044) Format: 880×1230 Printing Sheet: 1/2 Word Count: 10.000 First Printing in February 1992 First Edition in February 1992 Print Quantity: 1-500 Price: 1.00 Yuan Mechanical Industry Standard Service Network: http://www.JB.ac.cn2661_ 96t9 1/8F 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.