JB/T 6496-1992 Valve structural elements Stuffing box dimensions

JB/T 6496-1992 Valve structural elements Stuffing box dimensions JB/T6496-1992 Standard download decompression password: www.bzxz.net

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)
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 ScienceWww.bzxZ.net
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
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