JB/T 2001.35-1999 Water system check valve (PN=20MPa)

JB/T 2001.35-1999 JB/T 2001.35-1999 Water system non-return valve (PN=20MPa) JB/T2001.35-1999 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 assembly and parts1999-06-28 IssuedwwW.bzxz.Net
State Machinery Industry Bureau
2(-01-U1 Implementation
1Boyin
Machinery Industry Standard of the People's Republic of China
Water system check valve
Waller sstem-Cherk valve
( PN=20 MPa )
This standard specifies the type, size and technical requirements of single-chamber pipes. This standard is suitable for single-chamber pipes used alone in liquid pipelines with a nominal pressure of 2UMPL. 2 Referenced standards
JB/2001.35—1999
Reference 235-84
The provisions contained in the following standards become the provisions of this standard through reference in 4 standards. They are not published as standards. The versions shown are all valid and will be revised by the relevant standard department. All parties using this standard should discuss the possibility of using the new version of the following standards: JB/20U1.33—9 Water System Single Core (PN-20, 3!5M Pa) B2001.34—[999 water system one-way, PN-31MPa] 3 Types and dimensions
3.1 The type and dimensions of D32mm shall be in accordance with the specifications of JB/200E.34.1. 3.2 The type and dimensions of DN40-50mm shall be in accordance with the provisions of Figure 1 and Table 1, 3.3 The type and dimensions of DN65-100mm shall be in accordance with the provisions of Figure 2 and Table 1. M1
1-Flange type one-way valve core: 2-Valve body, 3-Flange after force attachment
Approved by the National Machinery Industry Bureau on 1599-06-28
Implementation on 2000-01-01
JB:T 20O1.35.2
JB/T 2001.35.3
JT 2GO1.35.4
JE2o1.35.5
4Technical requirements
1:4 x 14
40×18
J8/2001.35-1999
One flange type single flash core: 2—idle body, 3—internal secretion*Figure 2
4.1 Nominal pressure 20MPa, test force 30MPa16s :
Installation details
4.2 The valve body and the core are pressure tested together to check the limit of the valve and the performance of the seal. The test method is in accordance with the technical requirements of J/T200t.33. 5 Marking example
One-way valve with a nominal diameter of 40mm:
One-way DN40B/T200135—1999
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