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
Some standard content:
IC.s$ 23.110 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 Bureaubzxz.net 2(-01-U1 Implementation 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 Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.