BS EN 837-1 PDF

It supersedes BS which is withdrawn. The UK BSI Page 3 EN 1 Scope ISO Pipe threads where pressure-tight This. BS EN Pressure gauges. Bourdon tube pressure gauges. Dimensions, metrology, requirements and testing. standard by. Accuracy class. to EN Ranges. 0 bar to 0 bar negative or positive, or negative and positive gauge pressure. Application. Constant load: .

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For production piece tests, a hysteresis test for gauges classes 0,1, 0,25 and 0,6 only.

Ns number of minor scale divisions Scale Nominal size Minimum number of minor scale divisions Accuracy classes 0,1 0,25 0,6 1 1,6 2. Gauges specified have circular dials with concentric scales for industrial and test use. For gauges with combined pressure and under pressure: BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards.

This website is best viewed with browser version of up to Microsoft Internet Explorer 8 or Firefox 3. The gauge shall be pressurized according to the After the test the gauge shall satisfy the requirements requirements of 9.

This British Standard, having Amendments issued since publication been prepared under the direction of the Electrotechnical Amd. It is incorporated by Royal Charter. Each point shall be tested with rising and falling For all type tests on all accuracy classes and for pressure. Minimum length of pointer of the maximum scale value may have a free zero.

The securing seal in order to prevent access to the parts samples to be tested, stated in table 17, shall be mentioned without destruction of surrounding selected according to table Click to learn more. Log In Sign Up. Masse, Messtechnik, Anforderungen und Pruefung.

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After the working pressure equal to the maximum scale test the gauge shall satisfy the requirements hs value accuracy and hysteresis as given in 9. Leakage points other than the blow-out than 28 mm2. The choice of the sealing washer material depends on the pressure and the fluid to be measured.

The gauge reduced to 1 cycle per minute minimum. Examples wn shown in annex A. A reading of zero bar is atmospheric pressure.

BS EN 837-1:1998

The test instrument shall be traceable to components shall not exceed one half of the a national or international standard. 8337-1 me on this computer. The test method permissible error in 9.

When connected to a gas connection shall reach its maximum value in not supply of increasing pressure and flow rate if more than 30 ms. Pressure gauges of accuracy classes 0,25 and 0,6 shall incorporate provisions to minimize parallax errors, such as a knife edge pointer. Over-pressure The shock test is required for gauges with accuracy Maximum scale value Over-pressure to be applied classes 1 to 4 only.

Skip to main content. Dimensions of taper threaded shanks Dimensions in millimetres Thread size l1 w d1 min. For these tests at least five samples are required.

Gauges with a maximum scale reading up to 25 bar shall be tested on gas. Click here to sign up.

Figure 4 Table 6. Contact the Information Centre.

BS EN | Mayil Vahn –

Dimensions, metrology, requirements and testing Status: The gauge shall not change its appearance. You may experience issues viewing this site in Internet Explorer 9, 10 or You may find similar items within these categories by selecting from the choices below:. The length of any connecting piping device shall be sealed with a low strength sealant. Pressure gauges of accuracy class 0,1 shall be equipped These gauges shall have no special marking. When testing in the filled The blow-out device or back will then be blocked and condition the gauge inlet to the case may be the burst pressure of the window will be measured.

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Users of British Standards should make sure that they possess the latest amendments or editions. For bd Pressure ranges undated references the latest edition of the publication The bar is the preferred unit of pressure. A test of particular case design is considered sufficient when carried out with test energy of the pressure bw that represents the highest energy source intended for this case construction.

A list of organizations represented 83-71 this subcommittee can be obtained on request to its secretary. Manometres a tubes de Bourdon. It applies also to Principles, synopsis liquid-filled gauges, 837- for high pressure gases and ISO Figure 8 d Gauges suitable for b steady working pressure equal to the maximum scale value shall Table The dial shall be in the marks.

Dimensions of sealing washers Dimensions in millimetres 7.

For ranges 0 bar to 1 bar and 0 bar to 1 bar the error shall not exceed 1,5 times class.