GB/T 8099-1987 Hydraulic stack valve installation surface GB/T8099-1987 standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Hydraulic stack valve
Mounting surface
Hydraulic stack power--Modular stack valves-Mounting surfaces
1 Subject content and scope of application
This standard specifies the dimensions and relevant data of the mounting surface of hydraulic stack valves, and is applicable to the mounting surface of hydraulic vertical stack valves. 2 Reference standards
GB1031 Surface roughness parameters and values
GB1182～1184 Shape and position tolerances
GB1801 Tolerance and fit dimensions to 500mm: hole, shaft tolerance zone and fit 3 Special numbers
The following alphabetical symbols are used in this standard:
a Letters ABLPP, TX and Y are oil port symbols, b.
Letters F, F, F, FF. F. =The symbol for the fixing screw hole is the letter G, G, for the positioning pin hole symbol;
d. The letter D is the symbol for the fixing screw diameter. 4 Tolerances
4.1 The mounting surface, i.e. the plane within the thick dotted line, adopts the following values. a.
Surface roughness: R. Not more than 0.8m;
Surface flatness: 0.01mm per 100mm distance; h.
Tolerance for the diameter of the positioning pin hole: H12.
4.2 From the coordinate source point, the tolerance of the hole position size calculated along the x and y axes: positioning pin hole: 0.1mm;
Threaded hole: ±0.1mm,
Oil port: ±0.2mm.
5 Mounting surface type, number and size
The mounting surface of the superimposed valve is divided into type 1 and type I. 5.11 type mounting surface number and size.
5.1.1 type superimposed valve with the maximum main oil port diameter of 6.3mm (oil port size code: 03) installation surface number: GB8099-AB-03-4-A
b. Dimensions: see Figure 1 and Table 1.
National Machinery Industry Committee approved UDC 621. 646 on July 13, 1987
GB809987
1988-07-01 implementation
GB 8099-87
: 5.1.21 type superimposed valve with the maximum main oil port diameter of 11.2mm (oil port size code, 05) 9, installation surface number: GB8099-AC-05-4-Ab. Dimensions: see Figure 2 and Table 2.
5.1.31 type superimposed valve with a maximum main oil port diameter of 17.5mm (oil port size code: 07)a: Mounting surface number: GB8099-AD-07-4-Ab, dimensions see Figure 3 and Table 3.
5.1.41 type superimposed valve with a maximum main oil port diameter of 23.4mm (oil port size code: 08)a. Mounting surface number: GB8099-AE-08-4-Ab. Dimensions, see Figure 4 and Table 4.
5.1.51 type superimposed valve with a maximum main oil port diameter of 32mm (oil port size code: 10)a. Mounting surface number: GB8099-AF-10-4-A. Dimensions: see Figure 5 and Table 5.
5.2I-type mounting surface number and size
On the basis of the I-type main oil port maximum diameter of the stacking valve mounting surface of 11.2mm, the P1 oil port is added to become the I-type mounting surface I-type main oil port maximum diameter of the stacking valve (oil port code: 05). Mounting surface number: GB8099-BA-05-5-A: b, dimensions see Figure 6, Table 6.
6 Related data
6.1 Oil port size, the maximum diameter of the straight hole is not greater than the maximum oil port diameter given in the table. For the inclined hole, its major axis is not greater than the maximum oil port diameter given in the table.
6.2 The minimum thread depth of the screw hole is 1.5D (D is the screw diameter); for the mounting surface of ferrous metal materials, the depth of the fixing screw thread is 1.25D. The total depth of the screw holes is 2D + 6mm. 6.3 The plane within the thick dotted line in each figure is the minimum installation surface of the stacking valve. The rectangular right angle can be made into a fillet, and the maximum fillet radius R is D.
The distance from the center of each screw hole to the edge of the installation surface is equal. 6.4 The thin dotted line in the figure is the boundary of the minimum space required for each stacking valve of the installation surface adopted, that is, when the stacking valves of the same diameter are installed side by side, the minimum center distance between the two installation surfaces. 6.5 The minimum depth of each locating pin hole is 8mm. 6.6 The manufacturer must indicate the maximum working pressure of the bottom plate of each installation surface. The installation surface of the stacking valve with a maximum diameter of 6.3mm for the main oil concave of the type I (code: 03) is shown in Table 1
The maximum diameter of the main oil port of the type I is 6. 3mm Mounting surface dimension P of the superimposed valve
Note: For other relevant dimensions and regulations in the figure, please refer to Chapter 6. T
Figure 2 Mounting surface of Dengjia valve with a maximum main oil diameter of 11.2mm (code: 05) mm
GB809987
Mounting surface dimension A of superimposed valve with a maximum main oil port diameter of 11.2trl
Note: For other relevant dimensions and regulations in the figure, please refer to Chapter 6. 11.2m
122mlm
Figure 3 Mounting surface of superimposed valve with a maximum main oil port diameter of 17.5mm (code U7) Table 3
Mounting surface dimension A of superimposed valve with a maximum main oil port diameter of 17.5mm
Note: For other relevant dimensions and regulations in the figure, please refer to Chapter 6 X
M 10M 10M 10M 10:M 6
69.9169.9
GB8099-87www.bzxz.net
Figure 4 Mounting surface of the superimposed valve with a maximum main oil port diameter of 23.4mm (code: 08)Table 4 Mounting surface dimensions of the superimposed valve with a maximum main oil port diameter of 23.4mmT
Note: For other relevant dimensions and regulations in the figure, see Chapter 6. X
M12M12M12
M12M12
130.2130.2
GB8099-87
Figure 5 Mounting surface of the superimposed valve with a maximum main oil port diameter of 32mm (code: 10Table 5 Mounting surface dimensions of the superimposed valve with a maximum main oil port diameter of 32 mm mounting surface dimension A of the stacking valve
Note: For other relevant dimensions and regulations in the figure, see Chapter 6. X
7.5M20M20|M20M20M20
147.641.3
190, 5190. 5
158.8158.8158.8
GB 8099—87
Figure 6 Mounting surface of the stacking valve with the maximum main oil port diameter of 11.2mm of type I (code, 05) Table 6
Mounting surface dimension A of the stacking valve with the maximum main oil port diameter of 11.2mm of type T
Note: For other relevant dimensions and regulations in the figure, see Chapter 6. Additional remarks:
This standard is proposed and managed by the National Hydraulic and Pneumatic Standardization Technical Committee. This standard is drafted by Dalian Modular Machine Tool Research Institute. M6
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