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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The hydraulic effect due to pressure element failure could cause the window to be projected forward even when a case having a solid front is employed. Material shall be CRES except steel may be used for the ring and clamping ring. The specific gravity amse the fluid may have a distorting effect ase of the static head pressure.

The dial size and case design is designated b40.10 one of the following symbols: The use of gauges near zero pressure is not recommended because the accuracy tolerance of the gauge may be a large percentage of the applied pressure.

Consult the supplier for installation instructions. There will be no addenda or written interpretations of the requirements of this Standard issued to this edition. Table C-6 shows the ranges and range designators for retard pressure gauges.

ASME B Pressure Gauges and Gauge Attachments – Free Download PDF

Under these conditions the air expands, over-filling the limited volume within the sealed system, causing inaccurate pressure measurements and frequently distorting metal diaphragms. Are you an Engineering professional? Apply proof pressure to the gauge b4.0100 test and maintain for 1 min. However, if the external atmosphere contains corrosive elements, other materials may be required. Such proposals should be as specific as possible, citing the paragraph number sthe proposed wording, and a detailed description of the reasons for the proposal, including any pertinent documentation.


Pressure lines are connected using a threaded connection; generally NPT. Several methods may be employed to fasten the upper, mid, and lower housing together. Uppercase or lowercase letters are acceptable. Additional information is outlined in Nonmandatory Appendix A.

1017 Pressure Gauge

A resonance may occur in an internal part of the gauge, with no outward manifestation. The fill fluid is automatically degassed during the fill operation. A device that minimizes the possibility of an instrument turning after installation on the diaphragm seal.

A functional test in the intended application is generally the best evaluation method. They may, however, also reduce accuracy or sensitivity, or both. Because of the thin cross section, special attention must be given to the selection of material for the diaphragm.

The first installation may involve pressure pulsations that have expended most of the diaphragm fatigue life, resulting in early fatigue in the second installation.

Table C-2 shows the ranges and range designators for negative vacuum pressure gauges. If gauge cleanliness is important for the application, such as for use on equipment involving food processing, life support, or oxidizing fluids, the user should specify the appropriate level of cleanliness listed in Aeme 2.

In the presence of oxidizing agents, potential hazard can result from chemical reaction, ignition, or explosion.

Accuracy Grade Definitions | Miljoco

It is the difference at each test point between increasing pressure and decreasing pressure readings taken after tapping, at the same test point, approached from both increasing and decreasing pressure directions; in a single pressure cycle, expressed in percentage of span. Dual scale Customary and SI may be used on all gauges except for Caisson see para. Dimensions are in inches. These devices help to minimize potential damage b0.100 personnel and property in the event of gauge failure.


One example of 8 the many different types in common use is shown in Fig.

ASME B40.100-2005 Pressure Gauges and Gauge Attachments

The user shall furnish detailed information relative to the application of gauges having liquid-filled cases and solicit the advice of the gauge supplier prior to installation. It is the combined effects of method, observer, apparatus, and environment. Joints can be affected by temperature, stress, and corrosive media.

Tempered glass is generally 2 to 5 times stronger than annealed plain glass. The hysteresis value is lower if the pressure excursion is less than full scale.

Conformance inspection shall be performed at the place of manufacture. The elastic element is generally a thin-walled member, which of necessity operates under high stress conditions and must, therefore, be carefully selected for compatibility with the medium being measured.

The objective of the filling operation is to fill the sealed system consisting of the diaphragm seal top assembly, connections, and the instrument with the fill ase. American Standard taper pipe threads. The pressure gauge shall be mounted not less than 3 in. Threads shall be in accordance with Table C