JB/T 8726-1998 This standard specifies the main dimensions of the sealing chamber of the built-in mechanical seal. This standard applies to the sealing chamber of the built-in mechanical seal. It does not apply to radial double-end mechanical seals. It also does not apply to the sealing chamber of the main engine without a cylindrical cavity on the housing, such as the mechanical sealing chamber of the water pump of an automobile internal combustion engine. JB/T 8726-1998 Mechanical Seal Chamber Dimensions JB/T8726-1998 Standard Download Decompression Password: www.bzxz.net

1Cs 21. 140
Standard of the Machinery Industry of the People's Republic of China
JB/T 8726-1998
The annular space dimension of mechanical seal1998-03-19 Issued
Ministry of Machinery Industry of the People's Republic of China
1998-07-01 Implementation
JB/T 8726-198
This standard is proposed and approved by the Mechanical Seal Standardization Technical Committee of the Ministry of Machinery Industry. The responsible drafting unit of this standard is the General Machinery Research Institute of the Ministry of Machinery Industry. The main drafters of this standard are Zhang Chanhong, Shi Xujiang and Liu Yueying. Scopewww.bzxz.net
Standard of the Machinery Industry of the People's Republic of China
Dimensions of Mechanical Seal Cavity
The dimensions of mechanical seal cavity are the main dimensions of the seal cavity of the internal combustion engine. JB/87261998
This standard is applicable to the internal combustion engine cavity of the internal combustion engine. It is not applicable to the double-ended mechanical seal. It is also not applicable to the sealing of the main engine cavity on the housing: the mechanical seal cavity of the water system of the automobile internal combustion engine. 2 Reference Standards
The provisions contained in the following standards are recorded in the standards as a reference. When this standard is issued, the latest version is valid. All the referenced standards should explore the possibility of using the latest version of the following standards. TS03669-197
GB/T 6556S4
3 Type size
Shaft seal and cavity size of mechanical seal The main size of mechanical seal type, material and identification mark Non-type and balance for mechanical seal The outer diameter of the shaft is the inner diameter of the shaft. The value is shown in Table 1 and Figure 2. The shaft balance of mechanical seals should be taken from the following: Main size of the seal cavity diameter
Approved by the Ministry of Machinery Industry on March 19, 1998
Inner diameter D of the seal
Implemented on July 1, 1998
JB/T 8726-1998
Table 1 (continued)
Dense inner diameter door
IB/T8726-1998
Table 1 (complete
·30556 inches
Two belts with the same diameter·No. Chain according to the former 15)3G59 and H15556 unbalanced type out to the right with 150)3 (56 flat device sealing cavity
In-built non-balanced type dense system
Medical? In-built single belt balanced type sealing cavity
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