It supersedes BS which is withdrawn.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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Dimensions of parallel threaded shanks Dimensions in millimetres Thread size d2 d3 d4 l1 l2 l3 f w d1 min.
Please download Chrome or Firefox or view our browser tips. Pressure gauges of accuracy classes 0,25 and 0,6 shall incorporate provisions to minimize parallax errors, such as a knife edge pointer.
BS EN 837-1:1998
Nominal d1 d2 d3 d4 8371 following accuracy classes are defined: The test method permissible error in 9. Contact the Information Centre. Only lubricants suitable energy gas into the case. The standard applies to gauges suitable for industrial use with common industrial fluids. 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.
Information on standards BSI provides a wide range of information on national, European and international standards through its Library and its Technical Help to Exporters Service. Minimum 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.
The choice of the sealing washer material depends on the pressure and the fluid to be measured. Selection of gauges for type approval test Group of pressure Pressure range Minimum number of range bar sample same range A 20,6 to 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 21 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 0 to 60 0 to 0 to 0 to 0 to 4 D 0 to 0 to 1 0 to 1 4 NOTE.
The faster, easier way to work with standards. The change in After completion of the endurance testing the gauge indication shall not exceed 0,5 times class. You may experience issues viewing this site in Internet Explorer 9, 10 or Subscribing members of BSI are kept up to date with standards developments and receive substantial discounts on the purchase price of standards.
BS EN | Mayil Vahn –
The standard includes methods of test for performance to be applied at type approval and production piece tests. All types of safety pattern gauges shall meet the 9.
For safety pattern gauges without a baffle wall, em blow-out device according to 9. Gauge nominal size Minimum length of pointer mm mm 9.
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The time to Gauge cases intended for liquid filling shall be tested open the valve shall not exceed 50 ms, or filled and unfilled. Pressure gauges for welding, cutting and associated processes are not included in this standard, but are specified in BS EN Designation for combined pressure and vacuum ranges and for vacuum ranges without plus and minus sign e. This website is best viewed with browser version of up to Microsoft Internet Explorer 8 or Firefox 3. 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.
For these tests at least five samples are required. The test shall be made with factor is not permitted.
After this test measuring The tests for the requirements given in 9. The scale interval shall be vs value that represents 1 3 10n, 2 3 10n or 5 3 10n of the pressure unit, where 9. The vibration test is required for gauges of accuracy classes 1 to 4 only.
Leakage points other than the blow-out than 28 mm2.
Manometres a tubes de Bourdon. Where the gauge is sealed for the purpose of 9. The test instrument shall be traceable to components shall not exceed one half of the a national or international 837–1. BSI offers members an individual updating service called PLUS which ensures that bx automatically receive the latest editions of standards. The gauge shall be mounted inclined forwards at 58 to It presents the UK view on standards in Europe and at the international level.