JB/T 2001.59-1999 Minimum liquid level valve core for water system pump station (PN=20, 31.5MPa)

JB/T 2001.59-1999 JB/T 2001.59-1999 Minimum liquid level valve core for water system pump station (PN=20, 31.5MPa) JB/T2001.59-1999 Standard download decompression password: www.bzxz.net

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Machinery Industry Standard of the People's Republic of China
JB/T 2001.1~2001.74—1999
Water system components
Water system assembly and parts1999-06-28 Issued
State Machinery Industry Bureau
2(-01-U1 Implementation
Machinery Industry Standard of the People's Republic of ChinabzxZ.net
Minimum liquid level valve core for water system pump station
Watersystem-
|-Eoreof lorestlevevaveforwaleresuulnlor[ PN=20, 31.5 MPa ]
1Scope
This standard specifies the type, size and technical requirements of minimum liquid level valve core.JB/T 2001.59-1999
Replacement 20624
The standard is applicable to the nominal pressure of 20, 31.5MPa, and the minimum water level of the emergency closure when the temporary curtain occurs is the lowest. 2 Reference standards
The provisions contained in the underlined standards constitute the provisions of this standard through use in this standard. When this standard is published, the version shown is valid. All standards will be reviewed and revised. All parties using this standard should discuss the possibility of using the following standards to meet the latest version. JB.T2001.19-1999 Water system venting width type and size (PN. 50MPa) 3 Type and size
The type and size of the minimum liquid front mesh core shall be in accordance with the provisions of Table 1. MKd
All rainwater holes
Public enterprises to read and make several
1 Use: 2 Vent two 1 type; 3-due to attachment flange 4-sample whole-0 shape density diagram: -: 7-[1 shape density: 8-ring: 9 read: 10 read the embrace; 11-adjustment rate: 12-0 shape diagram; 13-rate rod; [4-nut National Machinery Industry Limited 1999-06-28 approved 162
2000-01-01 implementation
18 2K1:91
JB.T 20G1.59.2
J3-T20C1.59.3
1B/T2001.59.4
14/1 21111 19.3
IBT2001.5.6
JB/T20D1.59.1
JH/12001.59.
日/T 2C01 50.4
2c01.59.s
JB.T2G01.59.6
Technical requirements
JR/T2001-59-1999
4.1 Nominal 31.5MFa, test force 42MPa. Nominal pressure 26Mra: test force 30Mra.d,
ni × d
8×M30
6 x× M42 × 3
×M4?×3
H×M18×+
× M50 ×*
4.7: The pressure of the test liquid should be consistent with that of the working liquid, and there should be no leakage or movement at the seal and valve 1. 4.3 2 in Figure 1 (the deflation pressure should be in accordance with the provisions of JB/T2001.19 for the type deflation pressure) -5 mark indicates the minimum liquid level of the nominal diameter 65m: the minimum liquid level is DV65JB.T2001.59-1999105
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