JB/T 2001.69-1999 This standard is a revision of JB 2072-84 "DN15 follower valve for hydraulic press". This standard specifies the type, size and technical requirements of follower valves. This standard is applicable to follower valves DN15 for hydraulic press control systems. This standard was first issued in 1984. JB/T 2001.69-1999 DN15 follower valve for water system JB/T2001.69-1999 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 Issued
State Machinery Industry Bureau
2(-01-U1 Implementation
■Scope
Machinery Industry Standard of the People's Republic of China
Water system, follower rotary valve DN15
Water sygiem--Followerrotaryvalve DN15 This standard specifies the type, size, and technical requirements of the follow-up adjustment of the hydraulic control system. This standard is used for the follow-up adjustment of DN15. 2 Reference standards
JB/T2001.69-1999
2U728-
The provisions contained in the following dynamic measurement standards constitute the text of this standard through reference in this standard. When the entire standard is revised, the text shown is valid. All standard groups will be revised. All parties using this standard should explore the possibility of using the latest version of the following standards. 28T2001.71999 Type and size of water system compression joint 3 Type and size
3.1 Causes of ground installation The type and size of the frequency reading shall be in accordance with the provisions of Figure 1. 3.2 The type and size of the suitable rotary pottery for underground storage shall be in accordance with the provisions of 2. 3.3 This follow-up filter is combined with the oil relay in JB/T2001.71 to control the staggered valve type distribution release. 3.4 The follow-up valve can be compared with the Nayan grid excavation (Figure [), buried on the ground: it can also be controlled by the lower handle through the wire rope, and the breeding facility is installed underground (Figure 2: There are two types of filter foot placement, 1 described each of which is divided into [to (right) and Ⅱ [left] 3.5 The pulley connected to the shaft (cam shaft or rod shaft) is designed to be picked up from the wall or fixedly connected to the shaft. The size of the cold wheel on the center of the report is the same as that of the follow-up, and the diameter is 80m. 3.6 When this follow-up rotary valve is used to control the liquid positive tax distributor, the opening point of the water inlet valve and the drain valve is left at the nominal stop position (position! The length is 2"
3.7 The length of the pressure wire rope is selected according to the actual situation. 4 Numbers
The mathematical formula conforms to the specifications in the table.
5 Technical requirements
5.1 The allowable clearance between the valve core and the valve sleeve is 0.01-0.015mm; the effective diameter between the smoke sleeve and the mesh core is U.0[.020mm5, 2 Before assembly, strictly check whether the valve assembly and the sleeve meet the requirements of the parts drawing, and then put the two pieces together to check the valve! Cover, it is required that the four adjustment I are negative (i.e. positive cover), and H has two covers. Side by side, both are 0.Smm5.3 The valve core and valve sleeve are not allowed to have axial rotation and reduce the rotation flexibility, without abnormal phenomena such as deadlock. 5.4 Under the nominal pressure of 4.3MH, the follow-up pressure device is subjected to no-load test. All moving parts should be stable and flexible, and then load test. Approved by the State Machinery Industry Bureau on June 28, 1999, and implemented on January 1, 2000
6 Marking example
Follow-up network DNI. Type:
JBT, Z00L69—15
Follow-up condensing valve type JR/T20n1.69—1999
1—flat: 2—smoke: 3—engine: 4 branches Figure 1
4x 513
1R/T200L.69.1
J2H602
Public cup pressure
JRT200169-1999
Figure 1 (end)bzxz.net
Sensitive large agreed flow
Large rotation oxygen
Controlled extraction
Avoid large rotation angle
.1.Working lubrication
ID·-50
1Working office
20# wave crude oil
JB/T2001.69-1999
1Handle, 2Measuring wheel mechanism: 3Valve parts: 4—wheel mechanism: 5—Figure 2
JB/T2001.69—1999
Figure 2 (end)
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