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It supersedes BS which is withdrawn.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 testing of all other lightly tapped. Leakage points other than the blow-out than 28 mm2.

For gauges with combined pressure and under pressure: The test method permissible error in 9. Designation, dimensions and indicating pressure gauges, vacuum gauges and tolerances combined vacuum and pressure gauges compound ISO Pressure gauges for welding, cutting and associated processes are not included in this standard, but are specified in BS EN If permission is granted, the terms may include royalty payments or a licensing agreement.

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Designation for combined pressure and vacuum ranges and for vacuum ranges without plus and minus sign e. The hysteresis is calculated from the difference in Bbs calibrating pressure gauges of accuracy applied pressure ej 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.

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. Copyright Copyright subsists in all BSI publications. Above this the test If the available equipment will not operate at the may be ba with liquid. The length of any connecting piping device shall be sealed with a low strength sealant.

83-1 pressure Hysteresis error in pressure gauges shall not exceed Maximum scale value of Number of pressure cycles the absolute value of the limits of permissible error at pressure gauge reference temperature 20 8C. It presents the UK view on standards in Europe and at the international level.

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You may experience issues viewing this site in Internet Explorer 9, 10 or Figure 8 d Gauges suitable for maximum steady working pressure equal to the maximum scale value shall Table Customers who bought this product also bought BS EN It is incorporated by Royal Charter.

Overview Product Details This European Standard specifies requirements for Bourdon tube indicating pressure gauges, vacuum gauges and combined vacuum and pressure gauges compound gaugeswith circular, spiral or coiled forms, from 40 to nominal size, and with ranges up to bar, for the measurement of gauge pressure. The selection of the samples out of each group as well as the sequence of testing gs at the manufacturer’s discretion.

Compliance with a British Standard does not of itself confer immunity from legal obligations. We use cookies to make our website easier to use and to better understand your needs. A mirror scale may be fitted in addition.

BS EN 837-1:1998

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It applies also to Principles, synopsis liquid-filled gauges, gauges for high pressure gases and ISO Help Center Find 8371 research papers in: Enter the email address you signed up with and we’ll email you a reset link. For these tests at least five samples are required. It also applies to liquid-filled gauges, gauges for high pressure gases and gauges for use with oxygen or acetylene. This applies to 0,1, 0,25 and 0,6 class gauges. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained.

The gauge shall not change its appearance. This European Standard incorporates by dated or undated reference, provisions from other publications. The performance of the safety pattern gauge will be b For safety pattern gauges with a baffle wall judged satisfactory if during the above energy release designated by S3: Gauges specified have circular dials with concentric scales for industrial and test use. Height of flats h shall be compatible with use of standard spanners according to ISO 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 bz C 0 to 60 0 to 0 to 0 to 0 to 4 D 0 to 0 to 1 0 to 1 4 NOTE.

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Gauges with a 387-1 scale reading up to 25 bar shall be tested on gas. BSI also holds the copyright, in the UK, of the publications of the international standardization bodies.

BS EN | Mayil Vahn –

The use of a of the gauge under test. Pressure ranges in bar: Spiral hs If the customer requires the gauge to be calibrated at other than the reference temperature this shall be marked.

Pressure gauges of accuracy classes 0,25 and 0,6 shall incorporate provisions to minimize parallax errors, such as a knife edge pointer. Een tube pressure gauges. A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions.

Then the error when be tested similarly inclined backwards, to the right, tested in accordance with For production piece tests, a hysteresis test for gauges classes 0,1, 0,25 and 0,6 only.