This standard specifies the types and dimensions of hydraulic diaphragm accumulators. This standard applies to diaphragm accumulators with a nominal pressure not higher than 40MPa, a nominal volume not greater than 16L, petroleum-based hydraulic oil, emulsion or water as the working medium, and an operating temperature of -10~70℃. JB/T 7034-1993 Types and dimensions of hydraulic diaphragm accumulators JB/T7034-1993 Standard download decompression password: www.bzxz.net

Machinery Industry Standard of the People's Republic of China
JB/T7034-93
Types and dimensions of hydraulic isolated accumulators
Published on September 23, 1993
Ministry of Machinery Industry of the People's Republic of China
Implementation on July 1, 1994
Mechanical Industry Standard of the People's Republic of China
Types and dimensions of hydraulic diaphragm accumulators
1 Subject content and scope of application
This standard specifies the types and dimensions of hydraulic diaphragm accumulators (hereinafter referred to as accumulators). JB/T 703493
This standard applies to diaphragm accumulators with a nominal pressure not higher than 40MPa, a nominal volume not greater than 16L, using petroleum-based hydraulic oil, emulsion or water as the working medium, and an operating temperature of -10 to 70℃. Reference Standards
GB2352 Hydraulic Isolation Accumulator Nominal Pressure and Volume Series 3 Types and Dimensions
According to the structural type, this accumulator is divided into three types: A, B, and C. The type and dimensions of the A type accumulator are specified in Figure 1 and Table 1; the type and dimensions of the B type accumulator are specified in Figure 2 and Table 2; the type and dimensions of the C type accumulator are specified in Figure 3 and Table 3. RM
Figure 1A type accumulator
Approved by the Ministry of Machinery Industry on September 23, 1993
B type accumulator
Implemented on July 1, 1994
Nominal volume
Nominal volume
JB/T7034-93
Figure 3C type accumulator
Table 1 Sizes of type A accumulators with nominal pressures of 6.3, 10, 20, and 31.5 MPa Maximum discharge flow rate| |tt||Nominal pressure
Nominal diameter
M27×2
Type B accumulator dimensions with nominal pressures of 6.3, 20, 40 MPaMaximum discharge flow
12-M27
12-M30
12-M39
Nominal volume
Marking methodbZxz.net
Marking example:
JB/T7034-93
Table 3 Nominal pressure C-type energy device with a force of 6.3, 10, 20, 31.5 MPa Size Maximum discharge flow
M27×2
M39×2
JB/T703493
Working medium
Hydraulic oil: A
Emulsion: RA
Water: H
Connection type Threaded connection: L
Flange connection: F
Nominal pressure, MPa
Nominal Volume, L
Structural type: Type A, Type B, Type C
Hydraulic diaphragm accumulator
Nominal pressure is 6.3MPa, nominal volume is 1L, connection type is flange connection, and Type B diaphragm accumulator with water as working medium is marked as:
GXQB-1/6.3-F-HJB/T7034-93
Additional instructions:
This standard is proposed by the National Hydraulic and Pneumatic Standardization Technical Committee. This standard is under the jurisdiction of the Beijing Institute of Automation of the Ministry of Machinery Industry. This standard was drafted by the Xi'an Heavy Machinery Research Institute of the Ministry of Machinery Industry and the Hebei Zhuolu High-Pressure Gas Cylinder Factory. The main drafters of this standard are Lai Yongzhi, Zheng Qifu, and Li Zhisheng. 3
People's Republic of China
Mechanical Industry Standard
Types and dimensions of hydraulic diaphragm accumulators
JB/T7034-93
Published by the Machinery Standardization Research Institute of the Ministry of Machinery Industry Printed by the Machinery Standardization Research Institute of the Ministry of Machinery Industry (PO Box 8144, Beijing 100081)
No reproduction
Copyright reserved
Format 880×12301/16 Printing sheet 1/2 Number of words 6000 First edition in May 1994 First printing in May 1994 Number of copies 00,001-500 Price 3.00 yuan
No. 1277
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