It supersedes BS which is withdrawn.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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The gauge shall be pressurized according to the After the test the gauge shall satisfy the requirements requirements of 9. The baffle wall shall form a permanently fixed structural part of the case interposed between the 9. The time to Gauge cases intended for liquid filling shall be tested open the valve shall not exceed 50 ms, or filled and unfilled. It shall then should be left undisturbed for 1 h. Type of Bourdon tube Symbol e The symbol for the dial plane shall be marked when the manufacturer is required to calibrate the Circular gauges other than in the vertical position see figure 9.
BS EN | Mayil Vahn –
BS EN 837-1:1998
Worldwide Standards We can source any standard from anywhere in the world. The length of any connecting piping device shall be sealed with a low strength sealant. If permission is granted, the terms may include royalty payments or a licensing agreement.
The gauge shall be mounted inclined forwards at 58 to A test of particular case design is considered sufficient when carried out with test energy of the pressure element that represents the highest energy source intended for this case construction. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the E Secretariat or to any CEN member.
Symbols for types of pressure have an identifying mark at the maximum scale elements value see figure 8. You may find similar items within these categories by selecting from the choices below:.
Figure 4 Table 6. The gauge shall not change its appearance. Minimum height h of flats shall be compatible with use of standard spanners according een ISO For production piece testing of all other lightly tapped. It is the constant aim of BSI to improve the quality of our products and services.
Test as given in bz All types of safety pattern gauges shall meet the 9. The use of a of the gauge under test. Figure 8 d Gauges suitable for maximum steady working ne equal to the maximum scale value shall Table It does not Double-headed open-ended engineers’ apply to pressure gauges with electrical contacts. For illustrative examples see annex A. It is incorporated by Royal Charter. For details of these and other benefits contact Membership Administration.
The The operation of the blow-out device or blow-out back storage volume will be connected to the pressure shall be verified, and the pressure at which it occurs gauge case connection via a valve operated at high recorded, by pressurizing the case through the speed.
The dial shall be in the marks. Where the gauge is sealed for the purpose of 9. Pressure gauges for welding, cutting and associated processes are not included in this standard, but are specified in BS EN It does not apply to pressure gauges with electrical contacts. The hysteresis is calculated from the difference in When calibrating pressure gauges of accuracy applied pressure for the same indication point or the classes 0,1, 0,25 and 0,6 the reference temperature shall difference in pressure indication for the same applied be maintained within the maximum variation permitted pressure on falling and rising pressure.
Examples are shown in annex A. For gauges with combined pressure and under pressure: It supersedes BS Designation for combined pressure and vacuum ranges and for vacuum hs without plus and minus sign e. Valve and any connecting pipes or drillings shall have a flow cross section not less Licensed copy: The gauge reduced to 1 cycle per minute minimum. Please download Chrome or Firefox or view our browser tips.
Buying standards Orders for all BSI, international and foreign standards publications should be addressed to Customer Services. Only lubricants suitable energy gas into the case. The flow path shall not be a high pressure gas release test as follows.
Selection of gauges for type approval test Group of pressure Pressure range Minimum number of range bar sample same range A 20,6 8337-1 0 21 to 0 21 to 0,6 21 to 1,5 21 to 3 4 0 to 0,6 0 to 1 0 to 1,6 0 to 2,5 0 to 4 B 8377-1 to 5 21 to 9 21 to 15 21 to 24 0 to 40 4 0 to 6 0 to 10 0 to 16 0 to 25 C ba to 60 0 to 0 to 0 to 0 to 4 D 837- to 0 to 1 0 to 1 4 NOTE. This website is best viewed with browser version of up to Microsoft Internet Explorer 8 or Firefox 3.