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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It separates the medium from the fill fluid. All pressure gauges shall be subjected to nine blows. In many instances, requirements for design, construction, and use of gauges for these applications are specified by state or federal agencies or Underwriters Laboratories, Inc.
This 48 hr cycle shall be repeated four times for a total of five complete cycles. Release pressure and allow gauge to stabilize.
A Pressure Gauge meets EN and ASME B standards.
The pressure medium used for testing shall maintain the required cleanliness level of the gauge under calibration or calibration verification. The difference in readings at each test point between room temperature and the minimum operating temperature is the low temperature error.
The housing may be tapped to replace the nut. The user should become familiar with b40.00 sections of this Standard, as all aspects of safety cannot be covered in this section. In such cases the user should always furnish the supplier or manufacturer with information relative to the application and solicit his advice prior to installation of the gauge. Failure to do so may result in loss of accuracy, excessive friction, b4.100 mechanical damage to the pressure element or case.
This housing is exposed to the medium and the material must be compatible with the medium. Refrigeration gauges that show both temperature and pressure readings shall use Customary units for readability. Sanitary seals are quick disconnect types, where the upper and lower housings are held together b40.10 a unique clamp, permitting ease b40.10 dismantling and cleaning [see Fig.
Test for accuracy in accordance with para.
Students Click Here Join Us! It should also include the equivalent saturation temperature scale markings on the dial. Gauges used on oxygen regulators shall have cleanliness equivalent to Level IV.
The user shall take proper precautions so that cleanliness levels for socket and pressure element are maintained after the gauge is removed from its package for installation. The cases commonly used for regulator gauge applications are open front with pressure relief.
Temperature-compensated gauges shall be tested at several ambient temperatures within the compensated range. Conformance inspection shall be performed at the place of manufacture.
Failure may occur as pinhole leakage through the element walls or early fatigue failure due to stress cracking brought about by chemical deterioration or embrittlement of the material. Its use is entirely a voluntary matter and shall in no way preclude the manufacture or use of products that do not conform.
Reaction with the medium could include toxic contamination or loss of purity, which may damage the process or render the medium unusable see para. C-1 Case Design to permit transition to SI units. At each test point the gauge under test shall be read, lightly tapped, and then read again.
Pressure gauge testing standards and procedures are discussed in section 6.
American Standard taper pipe threads. The gauge shall be tested for accuracy in accordance with para. If some slight discoloration is observed, additional exposure to the maximum temperature may be desirable, to determine whether further darkening of the fluid, to the point where readability is affected, will occur. To do this, select the asmd language using the flag symbol.
1017 Pressure Gauge
Also, known as flow resistance [see paras. Persons wishing to attend any meeting should contact the Secretary of the B40 Standards Committee. For this mode of failure, a solid wall or portion between the elastic element and the window will not necessarily prevent parts being projected forward. In the selection of materials of construction for any medium resistance to corrosion is usually the determining factor.
Dials with a scale graduated in nonpressure units, or a scale range different from the range of the pressure element assembly, shall clearly indicate the maximum pressure that may be applied to the gauge without loss of calibration. The pointer may overlap the graduations. The ring facilitates purging of the process cavity. After filling both the seal [para.
Flanged seals are generally limited to the maximum rating of the flange itself. The spacing and displaying b440.100 the numerals marked on the gauge dial may vary for aesthetic reasons, provided that at least three numerals are displayed.
The test s shall have a duration of 96 hr. Some special applications require that the pressure element assembly have a high degree of leakage integrity.
Pressure Gauge ASME B
Weiss, Alternate, Weiss International, Inc. Dials shall indicate the units in which the scale is graduated. Graduation lines shall be radial to the center of rotation of the pointer and shall project beyond the arc described by the end of the pointer mirror and multiple scale dials excepted. B40.10 adjustment, if provided, is generally ssme to the gauge b4.0100 see para. Accuracy is the difference error between the true value and the gauge indication expressed as a percent of the gauge span.
This error is caused by internal case pressure changes and depends on fill media, extent of fill, and other factors. It has been general practice to use glycerin or silicone filling fluids.
A corrosive medium may dictate use of an element material having less than optimum properties. The B40100 case sizes listed below define size as the outside diameter of the case. It’s easy to join and it’s free. Correspondence should be addressed to: The filled capillary is then assembled to the instrument and seal in the same manner as the seal and instrument assembly described in para. Except as otherwise specified in the contract or purchase order, the manufacturer may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the purchaser.