JB/T 2001.28-1999 Manual gate valve for water system (PN=20MPa)

This standard specifies the type, size and technical requirements of manual gate valves. This standard applies to manual gate valves with a nominal pressure of 20MPa. JB/T 2001.28-1999 Manual gate valves for water systems (PN=20MPa) JB/T2001.28-1999 Standard download decompression password: www.bzxz.net

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Standard of the Machinery Industry of the People's Republic of China
JB/T 2001.1~2001.74—1999
Water system assembly and parts1999-06-28 Issued
State Machinery Industry Bureau
2(-01-U1 ImplementationwwW.bzxz.Net
Standard of the Machinery Industry of the People's Republic of China
Water system
Manual gate valve
Water sysler
Huad-operutel shul-off vahe
( PN-20 MPa )
This standard measures the type, size and technical requirements of manual valves. This standard uses nominal pressure 2MPa manual valves. 2 Reference standards
J0/T2001.28-1999
J20284
The following standards contain the texts and technical standards used in this standard. When this standard is published, the version shown is valid. All standard parts will be marked with the following specifications. The latest version of the standard is J: r2001.26 J999 water system manual (PV-20, 31.5MPa: JB, T2001.27 1999 water system card gate valve (PN-71.5MPa) 3 types and sizes
3.! DN10-32mm size! Near the diameter of 3.SMPa school dynamic gate universal, according to JRT091771.IH.T2U core:.27.5 provisions
3. 240-65 mm type and size connection drawing, the provisions of the benefit cavity
the following or approved: 2-two body: one side with flange 4-venting ton Figure 1
National Machinery Industry Bureau 1999-06-28 approved 2000--J1 implementation
JB,T 2001 28.1
JI5:T 2001 28.2
1R:T 2001 28.3
[8/2001.28—1999
2！ !0
3.3[-125mm type and call me Figure 2, Table 2 starting 3.DN150-200r type and size according to Figure 3, Table 2 agreed h
[-—, step valve core: 2—net body: 3—support attachment flange, 1—sign gas two Figure 2
will high flow
【on the gate: 2-body: 3—Figure attached to: 4—flash Figure
4×M13
RT 7x1 2x 5
B-T20K1.28.6
B:720].28.7
111×14
1B.T2001.28.y2(m)
4Technical Focus
168x20
194×22
775 ×37
1BT2001.28-1999
4.1Nominal!k20MPa, or test snMPa
460 : 754
361215
In Anmin
24G :27u
4×M2U
4 ×M24
1 V36 3
4.2 The attached body and the dangerous part are tested to check the dryness and tightness of the body. The test method is as shown in the technical requirements of January T20: 26. 5 Marking example
Manual adjustment of the public system diameter 40 port T:
Manual net M402001.281999
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