425 标准查询与下载

DS/ISO 6982:1989 液压传动.液压缸.活塞杆端球面环孔.装配尺寸

This International Standard establishes the mounting dimensions required for interchangeability of rod end spherical eyes of hydraulic cylinders. These rod end spherical eyes have been designed specifically for use with cylinders manufactured in accordance with ISO 6020/1 and ISO 6022, but this does not limit their application. The spherical bearing end eyes are used on piston rods of hydraulic cylinders for mechanically transmitting the cylinder force under oscillatory rotational and tilting movements. The design of the rod end spherical eyes is based on the maximum forces resulting from the specified internal diameter of the cylinders and pressures according to ISO 3320 and ISO 3322.

Hydraulic fluid power. Cylinders. Rod end spherical eyes. Mounting dimensions

DS/ISO 7180:1989 气压传动.气缸.缸筒和气口螺纹规格

This International Standard specifies the metric port thread sizes corresponding to a recommended range of pneumatic cylinders. Its purpose is to specify appropriate metric port sizes in relation to the bore. By complying with the port thread dimensions in-dicated, a suitable minimum piston speed will be ensured.

Pneumatic fluid power. Cylinders. Bore and port thread sizes

DS/ISO 7181:1989 液压传动.液压缸.缸筒和活塞杆截面比值

This International Standard specifies for each pair of diameters (D internal diameter, d piston rod diameter) of hydraulic cylinders a corresponding standard ratio 〓 between the useful areasa A1 and A2.

Hydraulic fluid power. Cylinders. Bore and rod area ratios

DS/ISO 7241-2:1989 液压传动.速接联轴节.第2部分:试验方法

This part of ISO 7241 specifies different test methods which could be applied to quick-action couplings. This part of ISO 7241 applies to male and female coupling halves, complete couplings, couplings with and without sealing means when uncoupled, and couplings that are connected and disconnected by a linear and/or rotational motion. The user of this part of ISO 7241 may select only the tests applicable to his needs. It is not intended that all tests be carried out for every application.

Hydraulic fluid power. Quick-action couplings. Part 2: Test methods

DS/ISO 7744:1989 液压传动.滤清器.要求的说明

This International Standard defines a statement of requirements for filters in hydraulic systems. A statement of requirements (SOR) is defined as a document to be provided by a user to specify his requirements to a manufacturer. A model SOR is described below to enable a user to define his requirements fully, without ambiguity and in standard form so that the supplier can meet the requirements as accurately as possible. Only the main features of a filter are to be defined in the SOR, but it will be understood that many variations and refinements are available which will influence the final choice. The response by manufacturers to the SOR will enable an initial choice to be made from those products which meet the main features defined in the SOR. It is unlikely that a manufacturer will meet all features defined in the SOR exactly from his standard range of products. He may offer his nearest standard product which might be beyond the limits laid down in the SOR. It is the responsibility of the user to determine the acceptability of features outside the stated requirements.

Hydraulic fluid power. Filters. Statement of requirements

DS/ISO 7790:1989 液压传动.规格为03和05型的四油口标准设计叠阀和四油口定向控制阀.紧固尺寸

1 This International Standard specifies clamping dimensions of four-port modular stack valves and four-port directional control valves, sizes 03 and 05, on mounting surfaces. The dimensions and sizes conform to ISO 4401 so as to ensure interchangeability of these valves and to reduce the number of fixing devices to be used. 2 This International Standard applies to damping dimensions of four-port modul?r stack valves and four-port directional control valves which represent current practice. They are generally applicable to industrial equipment.

Hydraulic fluid power. Four-port modular stack valves and four-port directional control valves, sizes 03 and 05. Clamping dimensions

DS/ISO 8131:1989 液压传动.160巴(16MPa) 小型系列单杆液压缸.公差

This International Standard lays down dimensional tolerances for 160 bar1) (16 MPa) compact series cylinders in accordance with ISO 6020/2 as required for interchangeability of commonly used hydraulic cylinders.

Hydraulic fluid power. Single rod cylinders, 16 MPa (160 bar) compact series. Tolerances

DS/ISO 8132:1989 液压传动.160巴(16MPa) 和250巴(25MPa) 系列的单杆液压缸.辅助设备安装尺寸

This International Standard lays down the mounting dimensions required for the interchangeability of accessories for 160 bar1) (16 MPa) medium series cylinders in accordance with ISO 6020/1 and 250 bar (25 MPa) series cylinders in accordance with ISO 6022. The accessbries have been designed specifically for use with cylinders manufactured in accordance with ISO 6020/1 and ISO 6022, but this does not limit their application. This International Standard covers the following accessories: — rod clevis (see figure 1 and table 1); — rod flanges (see figure 2 and table 2); — clevis bracket, form A (see figure 3 and table 3); — clevis bracket, form B (see figure 4 and table 4); — trunnion bracket (see figure 5 and table 5); — pivot pin (see figure 6 and table 6). These accessories are used on hydraulic cylinders for mechanically transmitting the cylinder force. The design of these accessories is based on the maximum forces resulting from the specified internal diameters of the cylinders and pressures according to ISO 3320 and ISO 3322. This International Standard only applies to the dimensional criteria of products manufactured in conformity with this International Standard; it does not apply to their functional characteristics.

Hydraulic fluid power. Single rod cylinders, 160 bar (16 MPa) medium and 250 bar (24 MPa) series. Mounting dimensions for accessories

DS/ISO 8135:1989 液压传动.160巴(16MPa) 和250巴(25MPa) 中型系列的单杆液压缸.公差

This International Standard lays down the dimensional tolerances for 160 bar1) (16 MPa) medium and 250 bar (25 MPa) series cylinders in accordance with ISO 6020/1 and ISO 6022 as required for interchangeability of commonly used hydraulic cylinders.

Hydraulic fluid power. Single rod cylinders, 160 bar (16 MPa) medium and 250 bar (25 MPa) series. Tolerances

DS/ISO 8136:1989 液压传动.160巴(16MPa) 中型系列单杆液压缸.油口尺寸

This International Standard lays down the port dimensions for 160 bar1) (16 MPa) medium series cylinders as required for interchangeability of commonly used hydraulic cylinders. NOTE — This International Standard allows manufacturers of hydraulic equipment freedom in design of metric cylinders; it does not restrict technical development but provides basic guidelines. The medium series dimensions are applicable to both round or square head cylinders thus allowing a wider range of application. They permit larger ports2) with longer cushions that are particularly suitable for applications requiring higher velocity and rapid decelerations.

Hydraulic fluid power. Single rod cylinders, 160 bar (16 MPa) medium series. Port dimensions

DS/ISO 8137:1989 液压传动.250巴(25MPa) 系列单杆液压缸.油口尺寸

This International Standard establishes port dimensions1) for 250 bar2) (25 MPa) series cylinders as required for interchangeability of commonly used hydraulic cylinders. NOTE — This International Standard allows manufacturers of hydraulic equipment freedom in design of metric cylinders; it does not restrict technical development but provides basic guidelines.

Hydraulic fluid power. Single rod cylinders, 250 bar (25 MPa) series. Port dimensions

DS/ISO 8138:1989 液压传动.160巴(16MPa) 小型系列单杆液压缸.油口尺寸

This International Standard establishes port dimensions1) for 160 bar2) (16 MPa) compact series cylinders as required for interchangeability of commonly used hydraulic cylinders. NOTE — This International Standard allows manufacturers of hydraulic equipment freedom in design of metric cylinders; it does not restrict technical development but provides basic guidelines. The compact series dimensions are most applicable to square head cylinders.

Hydraulic fluid power. Single rod cylinders, 160 bar (16 MPa) compact series. Port dimensions

DS/ISO 8139:1989 气压传动.1000kPa(10巴)系列气缸.活塞杆端球面孔.安装尺寸

This International Standard lays down the mounting dimensions required for interchangeability of rod end spherical eyes of pneumatic cylinders. The rod end spherical eyes have been designed specifically for use with 10 bar1) (1 000 kPa) series cylinders manufactured in accordance with ISO 6430, ISO 6431 and ISO 6432 but this does not limit their application. The spherical bearing end eyes are used on piston rods of pneumatic cylinders for mechanically transmitting the cylinder force under oscillatory rotational and tilting movements. The design of the rod end spherical eyes is based on the maximum forces resulting from the specified internal diameter of the cylinders and pressure according to ISO 6430, ISO 6431 and ISO 6432.

Pneumatic fluid power. Cylinders, 10 bar (1000 kPa) series. Rod and spherical eyes. Mounting dimensions

DS/ISO 2941:1989 液压传动.滤清器元件.抗挤压/爆裂性检验

This International Standard specifies a method for verifying the collapse/burst rating of a hydraulic fluid power filter element, i.e. the capability of the filter element to withstand a designated differential pressure at the normal (intended direction of) flow.

Hydraulic fluid power. Filter elements. Verification of collapse/burst resistance

DS/ISO 8434:1989 液压传动.导管和软管的连接.370喇叭形管口和240非喇叭形管口的配件尺寸和设计

1 This International Standard lays down general and dimensional specifications for sealing connections to be applied to fluid power tubes. Two types of connection are dealt with in this International Standard: — 24° flareless (bite) type fitting; — 37° flare type fitting. 2 This International Standard details only the female half of the 24° flareless (bite) type fitting, leaving each manufacturer to qualify his own mating ferrule that will bite into the tubing outside diameter when tightened with an appropriate mating nut. 3 This International Standard also details all the com-ponents of the 37° flare fitting type, including the shape and size of the tubing flare. Both metric and inch outside diameter tubing is accommodated by merely changing the most economical component, the sleeve (see annex A). In the past fittings have been predominantly used with inch tubing. 4 Both the 24° flareless (bite) and 37° flare fittings can be used on tubular ends of hose fittings as well. 5 The 24° flareless (bite) fittings may be attached to heavier wall tubing than ca'n be accommodated by flaring, thus ac-counting for the higher nominal pressure ratings. 6 This International Standard also specifies methods, whereby the flare type can be adapted to machined flare ends that may be welded or brazed onto tubing or hose couplings. By doing this, heavier wall tubing, like the 24° cone type, can be accommodated and higher nominal pressures can be used.

Hydraulic fluid power. Connection for tubes and hoses. Dimensions and designs for 37 degrees flare and 24 degrees flareless fittings

DS/ISO 2942:1989 液压传动.滤清器元件.制造的完整性检验

This International Standard specifies a method for verifying the fabrication integrity of a hydraulic fluid power filter element, i.e. the acceptability of the filter element for further testing and use. This International Standard is not iritended to be used for measuring filter performance.

Hydraulic fluid power. Filter elements. Verification of fabrication integrity

DS/ISO 2943:1989 液压传动.滤清器元件.材料和液体适应性的检验

This International Standard specifies a method for verifying the compatibility of the materials comprising a hydraulic fluid power filter element with a designated fluid, by verifying the ability of the filter element to maintain its collapse/burst rating after being subjected to the designated system fluid at an elevated temperature. The filter element mounting seal will not be included as part of the element.

Hydraulic fluid power. Filter elements. Verification of material compatibility with fluids

DS/ISO 2944:1989 流体动力系统和组件.公称压力

This International Standard establishes a series of nominal pressures from which to choose values used in other International Standards related to fluid power. It provides a standardized series from which to choose values applied to individual fluid power systems and/or components. The nominal pressures in this International Standard are for positive gauge pressures used with fluid power systems and/or components. Fluid power includes the engineering sciences of hydraulics, pneumatics and fluidics. NOTE — See 3.1 and 4.3 for explanations of nominal pressure.

Fluid power systems and components. Nominal pressures