ASME B40.100 PDF

Must be ASME B compliant. 9. The manufacturer is to provide a 5 year product warranty. Pressure gauges to be Winters P3S Series or approved. Buy ASME B Pressure Gauges and Gauge Attachments (B – ) from SAI Global. Buy ASME B (R) PRESSURE GAUGES AND GAUGE ATTACHMENTS from SAI Global.

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Acceptable performance specifications shall be agreed to by the supplier and user. The diaphragm seal is socket welded directly to the process line. In addition, the exposure of the fill fluid to the medium and surrounding area could cause a hazardous condition.

These rings are generally 48 2. Customary Unit X atmosphere standard bar [Note 2 ] in. The proposed code or standard was made available for public review and comment that provides an opportunity for additional public input from industry, academia, regulatory agencies, and the public-at-large.

The housing may be tapped to replace the nut. Air bubbles cause some loss of accuracy, but are particularly troublesome when operating either at high temperature or vacuum.

It is generally accepted that solid front cases with pressure relief back will reduce the possibility of parts being projected forward in the event of failure. Proof pressure may be a semidestructive test and should not be conducted repeatedly b0.100 the same gauge.


The gauge shall then be placed in a temperature test chamber at an elevated temperature [e. If the user requires detailed assistance, specify items listed in para. A psi Grade 3A gauge, with errors of 0. A gauge designed to indicate the pressure of corrosive or high viscosity fluids, or both.

A venting device must be used to completely reduce the pressure to zero before unlocking covers, removing fittings, or performing other similar activities. The fluid viscosity or resistance to flow has an effect upon the speed or response of the pressure instrument to a pressure change at the diaphragm.

Flanged seals may also be manufactured to other standards such as DIN. Correspondence should be addressed to: Temperature-compensated gauges shall be tested at several ambient temperatures within the compensated range.

1017 Pressure Gauge

The Committee welcomes proposals for revisions to this Standard. Accuracy is the difference error between the true value and the gauge indication expressed as a percent of the gauge span. Pressure gauge testing standards and procedures are discussed in section 6. Gauges contaminated with hydrocarbon pressure media shall not be used on oxygen regulators.

A Pressure Gauge meets EN and ASME B standards.

Table C-1 shows the ranges and range designators for general purpose positive pressure gauges. The following parts are not in contact with the medium: Click Here to join Eng-Tips and talk with other members! DO NOT conduct calibration verification using air from shop air lines, oil, or a contaminated pressure source. The tip of the pointer shall pass within one minor graduation line width of the inner end of the minor graduations. Pressure Connection O-ring union?


Pressure Gauge ASME B

Standards shall have nominal errors no greater than? The hysteresis value is lower if the pressure excursion is less than full scale.

The lower housing includes a threaded connection for attachment to the process line see Fig. The most common method for attaching or installing a diaphragm seal to a process line, tank, or vessel is with a threaded connection.

b40.100 The gauge connection must be compatible with the mating connection, and appropriate assembly techniques must be used. The lower housing connects to the process line, and is wetted by the medium. This diaphragm seal is so designed that the diaphragm is essentially flush with the flow stream and thus continually washed by the process media.

Apparent failure may be encountered due to plugging clogging of internal pressure passages or throttling devices by the pressure media.