{"id":3815,"date":"2019-04-20T21:42:22","date_gmt":"2019-04-20T19:42:22","guid":{"rendered":"http:\/\/www.inst-sim.com\/1\/?p=3815"},"modified":"2019-04-22T07:28:29","modified_gmt":"2019-04-22T05:28:29","slug":"gauge-selection-guide","status":"publish","type":"post","link":"https:\/\/www.inst-sim.com\/1\/pressure\/gauge-selection-guide\/","title":{"rendered":"\u062e\u0637\u0648\u0627\u062a \u0625\u062e\u062a\u064a\u0627\u0631 \u0639\u062f\u0627\u062f \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u0645\u0646\u0627\u0633\u0628 Pressure gauge Selection guide"},"content":{"rendered":"
\"\"<\/strong><\/div>\n
\u0644\u0643\u064a \u062a\u0642\u0648\u0645 \u0628\u0639\u0645\u0644\u064a\u0629 \u0627\u062e\u062a\u064a\u0627\u0631 \u0644\u0645\u0628\u064a\u0646 \u0636\u063a\u0637 \u0645\u0646\u0627\u0633\u0628 \u0644\u0644\u062a\u0637\u0628\u064a\u0642 \u0627\u0644\u0645\u0637\u0644\u0648\u0628 \u0648\u064a\u0633\u062a\u0645\u0631 \u0641\u064a \u0627\u0644\u0639\u0645\u0644 \u0644\u0641\u062a\u0631\u0629 \u0637\u0648\u064a\u0644\u0629 \u0644\u0627\u0628\u062f \u0645\u0646 \u062a\u062d\u062f\u064a\u062f \u0627\u0644\u062a\u0627\u0644\u064a :<\/strong><\/div>\n
\n

1- \u0627\u0644\u062f\u0642\u0629 Accuracy<\/span> .<\/p>\n

2- \u0645\u062f\u064a \u0627\u0644\u0642\u064a\u0627\u0633 Pressure Range<\/span> .<\/p>\n<\/div>\n

3- \u0646\u0648\u0639 \u0627\u0644\u0645\u0627\u0626\u0639<\/span>\/ \u0627\u0644\u0623\u062c\u0632\u0627\u0621 \u0627\u0644\u0645\u0628\u0644\u0644\u0629 Media\/Wetted Parts<\/span> .<\/p>\n

4- \u062a\u0635\u0645\u064a\u0645\/\u0646\u0648\u0639 \u062c\u0633\u0645 \u0627\u0644\u0639\u062f\u0627\u062f Case Style\/Material<\/span> .<\/p>\n

5- \u062d\u062c\u0645 \u0637\u0631\u0641 \u0627\u0644\u062a\u0648\u0635\u064a\u0644 Connection Size<\/span> .<\/p>\n

6- \u0645\u0643\u0627\u0646 \u0637\u0631\u0641 \u0627\u0644\u062a\u0648\u0635\u064a\u0644 Connection Location<\/span> .<\/p>\n

7- \u062d\u062c\u0645 \u062a\u062f\u0631\u064a\u062c \u0627\u0644\u0645\u0628\u064a\u0646 Dial Size<\/span> .<\/p>\n

*<\/div>\n

1- \u0627\u0644\u062f\u0642\u0629 Accuracy<\/span><\/h2>\n
\n

\u0628\u0627\u0644\u0646\u0633\u0628\u0629 \u0644\u0645\u0628\u064a\u0646\u0627\u062a \u0627\u0644\u0636\u063a\u0637 \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 \u0627\u0644\u0645\u064a\u0643\u0627\u0646\u064a\u0643\u064a \u062a\u064f\u0639\u0631\u0651\u064e\u0641 \u0627\u0644\u062f\u0642\u0629\u00a0Accuracy<\/span> \u0639\u0644\u064a \u0623\u0646\u0647\u0627 \u0646\u0633\u0628\u0629 \u0645\u0646 \u0627\u0644\u0645\u062f\u064a \u0627\u0644\u0643\u0644\u064a Full-Scale Range<\/span> \u0623\u0648 \u0623\u0642\u0635\u064a \u0642\u064a\u0645\u0629 \u0641\u064a \u0645\u0628\u064a\u0646 \u0627\u0644\u0636\u063a\u0637.<\/p>\n

\u0648\u062a\u062e\u062a\u0644\u0641 \u0627\u0644\u062f\u0642\u0629 \u0627\u0644\u0645\u0637\u0644\u0648\u0628\u0629 \u0645\u0646 \u0635\u0646\u0627\u0639\u0629 \u0644\u0623\u062e\u0631\u064a \u0623\u0648 \u0645\u0646 \u062a\u0637\u0628\u064a\u0642 \u0644\u0622\u062e\u0631 , \u0643\u0627\u0644\u062a\u0627\u0644\u064a :<\/p>\n

\u2022 \u062a\u0643\u0648\u0646 \u062f\u0642\u0629 \u0627\u0644\u0639\u062f\u0627\u062f\u062a\u00a0\u0627\u0644\u0642\u064a\u0627\u0633\u064a\u0629 \u0627\u0644\u0645\u0633\u062a\u062e\u062f\u0645\u0629 \u0641\u064a \u0627\u0644\u0645\u0639\u0627\u064a\u0631\u0629 \u0648\u0627\u0644\u0625\u062e\u062a\u0628\u0627\u0631 \u0645\u0646 0.25% \u0625\u0644\u064a 0.10% \u0645\u0646 \u0627\u0644\u0645\u062f\u064a \u0627\u0644\u0643\u0644\u064a .<\/p>\n

\u2022 \u0641\u064a \u0627\u0644\u0639\u0645\u0644\u064a\u0627\u062a \u0627\u0644\u0625\u0646\u062a\u0627\u062c\u064a\u0629 \u0627\u0644\u062d\u0633\u0627\u0633\u0629 \u062a\u0643\u0648\u0646 \u0627\u0644\u062f\u0642\u0629 0.5% \u0645\u0646 \u0627\u0644\u0645\u062f\u064a \u0627\u0644\u0643\u0644\u064a.<\/p>\n

\u2022 \u0641\u064a \u0627\u0644\u0639\u0645\u0644\u064a\u0627\u062a \u0627\u0644\u0625\u0646\u062a\u0627\u062c\u064a\u0629 \u0648\u0627\u0644\u0635\u0646\u0627\u0639\u064a\u0629 \u0627\u0644\u0639\u0627\u0645\u0629 \u0646\u0633\u062a\u062e\u062f\u0645 \u0639\u062f\u0627\u062f\u0627\u062a \u0628\u062f\u0642\u0629 1.0% .<\/p>\n

\u2022 \u0627\u0644\u0639\u0645\u0644\u064a\u0627\u062a \u0627\u0644\u062a\u062c\u0627\u0631\u064a\u0629 \u0645\u0646\u062e\u0641\u0636\u0629 \u0627\u0644\u062d\u0633\u0627\u0633\u064a\u0629 \u0646\u0633\u062a\u062e\u062f\u0645 \u062f\u0642\u0629 2.0% .<\/p>\n

\u064a\u0645\u0643\u0646\u0643 \u0627\u0644\u0631\u062c\u0648\u0639 \u0625\u0644\u064a \u0623\u064a \u0645\u0646 \u0645\u0648\u0627\u0635\u0641\u0627\u062a ASME B40.100-1998<\/span> \u0623\u0648 DIN specifications<\/span> \u0644\u0645\u0632\u064a\u062f \u0645\u0646 \u0627\u0644\u0645\u0639\u0644\u0648\u0645\u0627\u062a \u062d\u0648\u0644 \u0627\u0644\u062f\u0642\u0629.<\/p>\n<\/div>\n

 <\/p>\n

\u0648\u062a\u0635\u0646\u0641 \u0645\u0628\u064a\u0646\u0627\u062a \u0627\u0644\u0636\u063a\u0637 \u0625\u0644\u064a \u0646\u0648\u0639\u064a\u0646 :<\/p>\n

\u0645\u0628\u064a\u0646\u0627\u062a \u0639\u0645\u0644\u064a\u0627\u062a \u0627\u0644\u062a\u0634\u063a\u064a\u0644\u00a0Process Gauges<\/span><\/strong> : \u0648\u0647\u064a \u0645\u0628\u064a\u0646\u0627\u062a \u0639\u0627\u0644\u064a\u0629 \u0627\u0644\u062c\u0648\u062f\u0629\u00a0High Quality Gauges<\/span> .<\/p>\n

\u0645\u0628\u064a\u0646\u0627\u062a \u0627\u0644\u062e\u062f\u0645\u0627\u062a\u00a0Utility Gauges<\/span><\/strong> : \u0648\u0647\u064a \u0645\u0628\u064a\u0646\u0627\u062a \u0645\u0646\u062e\u0641\u0636\u0629 \u0627\u0644\u062a\u0643\u0644\u0641\u0629 \u0648\u0627\u0644\u062c\u0648\u062f\u0629\u00a0Low Cost Gauges<\/span> \u060c \u0648\u0639\u0627\u062f\u0629 \u0645\u0627 \u062a\u0633\u062a\u062e\u062f\u0645 \u0641\u064a \u0627\u0644\u0623\u0646\u0634\u0637\u0629 \u0627\u0644\u064a\u0648\u0645\u064a\u0629 \u0639\u0644\u0649 \u0627\u0644\u0645\u0636\u062e\u0627\u062a \u0648\u0627\u0644\u0636\u0648\u0627\u063a\u0637 \u0648\u0627\u0644\u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u0647\u0648\u0627\u0626\u064a\u0629 \u0648\u0645\u0627 \u0634\u0627\u0628\u0647 \u0630\u0644\u0643.<\/span><\/span><\/p>\n

 <\/p>\n

\n
\u0645\u0644\u0627\u062d\u0638\u0627\u062a :<\/span><\/strong><\/span><\/div>\n
    \n
  • \u0628\u0639\u0636 \u0627\u0644\u0634\u0631\u0643\u0627\u062a \u0644\u0627 \u062a\u0646\u062a\u062c \u0623\u0633\u0627\u0633\u0627 \u0623\u0648\u0644 \u0641\u0626\u0629 .<\/li>\n
  • \u0627\u0644\u0641\u0631\u0642 \u0641\u064a \u0627\u0644\u062f\u0642\u0629 \u064a\u0624\u062f\u064a \u0625\u0644\u064a \u0641\u0631\u0642 \u0645\u0644\u062d\u0648\u0638 \u0641\u064a \u0627\u0644\u0633\u0639\u0631 .<\/li>\n
  • \u0642\u062f \u064a\u0639\u0628\u0631 \u0639\u0646 \u0627\u0644\u0645\u0628\u064a\u0646 \u0628\u062f\u0642\u0629 \u0645\u0643\u0648\u0646\u0629 \u0645\u0646 3 \u0623\u0631\u0642\u0627\u0645 \u0645\u062b\u0644 2-1-2 % \u0641\u064a \u0647\u0630\u0647 \u0627\u0644\u062d\u0627\u0644\u0629 \u064a\u0642\u0635\u062f \u0623\u0646 \u0645\u0633\u062a\u0648\u064a \u0627\u0644\u062f\u0642\u0629 1% \u064a\u0643\u0648\u0646 \u0641\u064a \u0645\u0646\u062a\u0635\u0641 \u0627\u0644\u0645\u062f\u064a \u0648\u0645\u0627 \u062d\u0648\u0644\u0647 ( \u0623\u0643\u062b\u0631 \u0645\u0646 25% \u0625\u0644\u064a \u0623\u0642\u0644 \u0645\u0646 75%) \u0623\u0645\u0627 \u0641\u064a\u0645\u0627 \u0639\u062f\u0627 \u0630\u0644\u0643 \u0641\u0627\u0646 \u0627\u0644\u062f\u0642\u0629 \u062a\u0643\u0648\u0646 2% .<\/li>\n<\/ul>\n<\/div>\n
    .<\/div>\n
    <\/div>\n
    \n

    For a mechanical pressure gauge, accuracy is defined as a percentage of the full-scale range.<\/p>\n

    While requirements differ from one industry to another, the following are general guidelines:<\/p>\n

    \u2022 Test Gauges and Standards: 0.25% through 0.10% full scale accuracies.<\/p>\n

    \u2022 Critical Processes: 0.5% full scale accuracy.<\/p>\n

    \u2022 General Industrial Processes: 1.0% accuracy.<\/p>\n

    \u2022 Less Critical Commercial Uses: 2.0% accuracy.<\/p>\n

    Refer to ASME B40.100-1998 or the DIN specifications for more information on accuracy.<\/p>\n<\/div>\n

    .<\/div>\n
    \n

    2- \u0645\u062f\u064a \u0627\u0644\u0642\u064a\u0627\u0633 Pressure Ranges<\/span><\/h2>\n

    \"\"<\/p>\n

    \u062a\u064f\u0648\u0635\u064a \u062a\u0639\u0644\u064a\u0645\u0627\u062a \u0627\u0644\u0640 ASME B40.100-1998<\/span> \u0628\u0623\u0646 \u064a\u0643\u0648\u0646 \u0636\u063a\u0637 \u0627\u0644\u062a\u0634\u063a\u064a\u0644 \u0627\u0644\u0637\u0628\u064a\u0639\u064a \u0645\u062d\u0635\u0648\u0631\u0627 \u0628\u064a\u0646 25 % \u0625\u0644\u064a 75 % \u0645\u0646 \u0627\u0644\u0645\u062f\u064a \u0627\u0644\u0643\u0644\u064a. \u0648\u0625\u0630\u0627 \u0643\u0627\u0646 \u0636\u063a\u0637 \u0627\u0644\u062a\u0634\u063a\u064a\u0644 \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 \u0627\u0644\u0630\u064a \u064a\u062d\u062f\u062b \u0641\u064a\u0647 \u062a\u063a\u064a\u0631\u0627\u062a \u0641\u062c\u0627\u0626\u064a\u0629 \u0643\u0628\u064a\u0631\u0629 (\u062f\u0641\u0642\u0627\u062a \u0641\u064a \u0627\u0644\u0636\u063a\u0637) \u0641\u064a\u062c\u0628 \u0623\u0644\u0627 \u062a\u0632\u064a\u062f \u0627\u0644\u0642\u064a\u0645\u0629 \u0627\u0644\u0642\u0635\u0648\u064a \u0644\u0636\u063a\u0637 \u0627\u0644\u062a\u0634\u063a\u064a\u0644 \u0639\u0646 50 % \u0645\u0646 \u0643\u0627\u0645\u0644 \u0645\u062f\u064a \u0627\u0644\u062a\u062f\u0631\u064a\u062c .<\/p>\n

    .<\/p>\n

    ASME B40.100-1998 recommends that normal operating pressure be confined to 25%-75% of the scale. If pulsation is present in the process, maximum operating gauge pressure should not exceed 50% of the full-scale range.<\/p>\n

    .<\/p>\n<\/div>\n

    3- \u0646\u0648\u0639 \u0627\u0644\u0645\u0627\u0626\u0639<\/span>\/ \u0627\u0644\u0623\u062c\u0632\u0627\u0621 \u0627\u0644\u0645\u0628\u0644\u0644\u0629 MEDIA \/ WETTED PARTS<\/span><\/h2>\n
    \"\"<\/div>\n
    \u064a\u062c\u0628 \u0639\u0644\u064a \u0627\u0644\u0623\u062c\u0632\u0627\u0621 \u0627\u0644\u0645\u0628\u0644\u0644\u0629 \u0645\u0646 \u0627\u0644\u0639\u062f\u0627\u062f (\u0645\u062b\u0644 \u0623\u0646\u0628\u0648\u0628 \u0628\u0648\u0631\u062f\u0646\u00a0Bourdon Tube<\/span> \u0648\u0637\u0631\u0641 \u0627\u0644\u062a\u0648\u0635\u064a\u0644 Socket<\/span>) \u0623\u0646 \u062a\u062a\u0648\u0627\u0641\u0642 \u0645\u0639 \u0646\u0648\u0639\u064a\u0629 \u0645\u0627\u0626\u0639 \u0627\u0644\u062a\u0634\u063a\u064a\u0644 Process<\/span> \u062d\u064a\u062b \u0623\u0646 \u0639\u062f\u0645 \u062a\u0648\u0627\u0641\u0642\u0647 \u0645\u0639 \u0645\u0643\u0648\u0646\u0627\u062a \u0627\u0644\u0639\u062f\u0627\u062f \u0642\u062f \u064a\u062a\u0633\u0628\u0628 \u0641\u064a \u062d\u062f\u0648\u062b \u0635\u062f\u0623 \u0623\u0648 \u062a\u0622\u0643\u0644 \u0628\u0647\u0627 \u0648\u062a\u0648\u0642\u0641 \u0627\u0644\u0639\u062f\u0627\u062f \u0639\u0646 \u0627\u0644\u0639\u0645\u0644 \u0623\u0648 \u062d\u062f\u0648\u062b \u0645\u0634\u0643\u0644\u0627\u062a \u0641\u064a \u0627\u0644\u0633\u0644\u0627\u0645\u0629 \u0644\u0630\u0644\u0643 \u0639\u0646\u062f \u0639\u062f\u0645 \u062a\u0648\u0627\u0641\u0642 \u0647\u0630\u0647 \u0627\u0644\u0623\u062c\u0632\u0627\u0621 \u0645\u0639 \u0627\u0644\u0645\u0627\u0626\u0639 \u0627\u0644\u0645\u0637\u0644\u0648\u0628 \u0642\u064a\u0627\u0633 \u0636\u063a\u0637\u0647 \u060c \u064a\u062a\u0645 \u0639\u0632\u0644 \u0647\u0630\u0647 \u0627\u0644\u0623\u062c\u0632\u0627\u0621 \u0639\u0646 \u0627\u0644\u0645\u0627\u0626\u0639 \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u063a\u0634\u0627\u0621 Diaphragm<\/span> .<\/div>\n
    \n
    \u0644\u0627 \u064a\u0633\u062a\u062e\u062f\u0645 \u0627\u0644\u063a\u0634\u0627\u0621 Diaphragm<\/span> \u0644\u062d\u0645\u0627\u064a\u0629 \u0627\u0644\u0623\u062c\u0632\u0627\u0621 \u0627\u0644\u0645\u0628\u0644\u0644\u0629 \u0645\u0646 \u0627\u0644\u062a\u0623\u0643\u0644 \u0641\u0642\u0637 \u0648\u0644\u0643\u0646 \u0623\u064a\u0636\u0627 \u064a\u0633\u062a\u062e\u062f\u0645 \u0641\u064a \u062d\u0627\u0644\u0629 \u0627\u0644\u0645\u0648\u0627\u062f \u0639\u0627\u0644\u064a\u0629 \u0627\u0644\u0644\u0632\u0648\u062c\u0629 \u0623\u0648 \u0627\u0644\u0645\u0648\u0627\u0626\u0639 \u0627\u0644\u0645\u062d\u0645\u0644\u0629 \u0628\u0627\u0644\u0623\u0648\u0633\u0627\u062e \u0623\u0648 \u0627\u0644\u0639\u0648\u0627\u0644\u0642 \u0644\u0645\u0646\u0639 \u062a\u0631\u0633\u0628\u0647\u0627 \u062f\u0627\u062e\u0644 \u062a\u0644\u0643 \u0627\u0644\u0623\u062c\u0632\u0627\u0621 \u0627\u0644\u0645\u0628\u0644\u0644\u0629 Wetted Parts<\/span> . \u0648\u0646\u0644\u0627\u062d\u0638 \u0623\u0646\u0647 \u0639\u0646\u062f \u0627\u0636\u0627\u0641\u0629 \u063a\u0634\u0627\u0621 Diaphragm<\/span> \u0646\u0636\u064a\u0641 \u0639\u0644\u064a \u0646\u0633\u0628\u0629 \u0627\u0644\u062e\u0637\u0623 \u0641\u064a \u0627\u0644\u0642\u064a\u0627\u0633 \u062d\u0648\u0627\u0644\u064a 0.5% .<\/div>\n
    .<\/div>\n<\/div>\n
    \u0645\u062b\u0627\u0644 \u0639\u0644\u064a \u062e\u0627\u0645\u0627\u062a \u062a\u0635\u0646\u064a\u0639 \u0627\u0644\u0623\u062c\u0632\u0627\u0621 \u0627\u0644\u0645\u0628\u0644\u0644\u0629 \u0645\u0646 \u0645\u0628\u064a\u0646 \u0627\u0644\u0636\u063a\u0637 Pressure Gauge<\/span> :<\/strong><\/div>\n
      \n
    • \u0623\u0646\u0628\u0648\u0628 \u0628\u0648\u0631\u062f\u0648\u0646\u00a0Bourdon Tube<\/span><\/span><\/span> \u0645\u0646 \u0627\u0644\u0635\u0644\u0628 \u0627\u0644\u0645\u0642\u0627\u0648\u0645 \u0644\u0644\u0635\u062f\u0623\u00a0Stainless Steel 316L<\/span><\/span><\/span> \u0645\u0639 \u0637\u0631\u0641 \u062a\u0648\u0635\u064a\u0644\u00a0Socket<\/span> \u0645\u0646 \u0627\u0644\u0635\u0644\u0628 \u0627\u0644\u0645\u0642\u0627\u0648\u0645 \u0644\u0644\u0635\u062f\u0623\u00a0Stainless Steel 316L<\/span><\/span><\/span> .<\/li>\n
    • \u0623\u0646\u0628\u0648\u0628 \u0628\u0648\u0631\u062f\u0648\u0646\u00a0Bourdon Tube<\/span><\/span><\/span> \u0645\u0646 \u0627\u0644\u0628\u0631\u0646\u0632 \u0627\u0644\u0641\u0633\u0641\u0648\u0631\u064a Phosphor Bronze<\/span> \u0645\u0639 \u0637\u0631\u0641 \u062a\u0648\u0635\u064a\u0644\u00a0Socket<\/span> \u0645\u0646 \u0627\u0644\u0646\u062d\u0627\u0633\u00a0Brass<\/span> .<\/li>\n<\/ul>\n
      .<\/div>\n
      \n
      \u0623\u064a\u0636\u0627 \u0638\u0631\u0648\u0641 \u0627\u0644\u062a\u0634\u063a\u064a\u0644 \u0647\u0627\u0645\u0629 \u064a\u062c\u0628 \u0623\u062e\u0630\u0647\u0627 \u0641\u064a \u0627\u0644\u0627\u0639\u062a\u0628\u0627\u0631 \u0644\u0627\u0637\u0627\u0644\u0629 \u0639\u0645\u0631 \u0627\u0644\u0645\u0628\u064a\u0646 Gauge<\/span> .<\/div>\n
      \u0639\u0646\u062f \u0648\u062c\u0648\u062f \u0627\u0647\u062a\u0632\u0627\u0632\u0627\u062a \u0641\u064a \u0627\u0644\u062e\u0637 \u0627\u0644\u0645\u0631\u0627\u062f \u0642\u064a\u0627\u0633\u0647 \u0623\u0648 \u0623\u0646 \u0627\u0644\u0645\u0628\u064a\u0646 \u064a\u062a\u0639\u0631\u0636 \u0644\u062f\u0641\u0642\u0627\u062a \u0645\u0646 \u0627\u0644\u0636\u063a\u0637\u00a0Vibration and Pulsation<\/span> \u060c \u0641\u064a\u062c\u0628 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u0623\u0646\u0648\u0627\u0639 \u0627\u0644\u062a\u064a \u062a\u0645\u0644\u064a\u0621 \u0628\u0645\u0627\u0626\u0639 \u0644\u064a\u0642\u0648\u0645 \u0628\u0639\u0645\u0644\u064a\u0629 \u0627\u0644\u0625\u062e\u0645\u0627\u062f Damping<\/span> \u060c \u0623\u0648 \u0623\u0646\u0648\u0627\u0639 \u0630\u0627\u062a \u062a\u0635\u0645\u064a\u0645 \u062e\u0627\u0635 \u0644\u0644\u0639\u0645\u0644 \u0641\u064a \u062d\u0627\u0644\u0629 \u0627\u0644\u0627\u0647\u062a\u0632\u0627\u0632\u0627\u062a \u0623\u0648\u0627\u0644\u062f\u0641\u0642\u0627\u062a (\u0628\u062f\u0648\u0646 \u0633\u0627\u0626\u0644).<\/div>\n<\/div>\n
      <\/div>\n
      \u0645\u0646 \u0627\u0644\u0633\u0648\u0627\u0626\u0644 \u0627\u0644\u0645\u0633\u062a\u062e\u062f\u0645\u0629 \u0641\u064a \u0645\u0644\u0626 \u0627\u0644\u0641\u0631\u0627\u063a \u0627\u0644\u062f\u0627\u062e\u0644\u064a \u0644\u062c\u0633\u0645 \u0627\u0644\u0645\u0628\u064a\u0646 :<\/strong><\/div>\n
        \n
      • \u0627\u0644\u062c\u0644\u0633\u0631\u064a\u0646\u00a0Glycerine<\/span> .<\/li>\n
      • \u0627\u0644\u0632\u064a\u062a \u0627\u0644\u0633\u0644\u064a\u0643\u0648\u0646\u064a\u00a0Silicone Oil<\/span> \u0645\u0639 \u0627\u0644\u0645\u0628\u064a\u0646\u0627\u062a \u0627\u0644\u062a\u064a \u062a\u062d\u062a\u0648\u064a \u0639\u0644\u064a \u0623\u0637\u0631\u0627\u0641 \u062a\u0644\u0627\u0645\u0633 \u0643\u0647\u0631\u0628\u064a\u0629\u00a0Electrical Contacts<\/span> .<\/li>\n
      • \u0623\u0648\u0628\u0646\u0648\u0644<\/span><\/span> Openol<\/span> \u0645\u0639 \u0627\u0644\u0645\u0628\u064a\u0646\u0627\u062a \u0627\u0644\u062a\u064a \u062a\u062d\u062a\u0648\u064a \u0639\u0644\u064a \u0623\u0637\u0631\u0627\u0641 \u062a\u0644\u0627\u0645\u0633 \u0643\u0647\u0631\u0628\u064a\u0629\u00a0Electrical Contacts<\/span> .<\/li>\n<\/ul>\n
        .<\/div>\n
        \n
        \u0648\u062a\u0648\u062c\u062f \u0639\u062f\u0629 \u0645\u0644\u062d\u0642\u0627\u062a \u064a\u0645\u0643\u0646 \u0627\u0633\u062a\u062e\u062f\u0627\u0645\u0647\u0627 \u0644\u0645\u0648\u0627\u062c\u0647\u0629 \u0627\u0644\u0627\u0647\u062a\u0632\u0627\u0632\u0627\u062a \u0623\u0648\u0627\u0644\u062f\u0641\u0642\u0627\u062a \u0645\u0646\u0647\u0627 :<\/div>\n
          \n
        • \u062e\u0627\u0645\u062f \u0642\u0641\u0632\u0627\u062a \u0627\u0644\u0636\u063a\u0637 Pulsation Damper<\/span> .<\/li>\n
        • \u062e\u0627\u0645\u062f \u062f\u0641\u0642\u0627\u062a \u0627\u0644\u0636\u063a\u0637 Pressure Snubber<\/span> .<\/li>\n
        • \u0648\u0627\u0642\u064a \u0627\u0644\u0645\u0628\u064a\u0646 Gauge Saver<\/span> .<\/li>\n
        • \u063a\u0634\u0627\u0621 Diaphragm Seal<\/span> .<\/li>\n<\/ul>\n<\/div>\n
          .<\/div>\n
          The wetted parts of the pressure gauge, the Bourdon tube and socket must be compatible with the process media. If not compatible with the wetted parts of the gauge, corrosion will occur. Corrosion of gauge wetted parts will eventually cause gauge failure and possibly safety issues. When the gauge wetted parts are not compatible with the process media, a diaphragm should be considered.<\/div>\n
          The diaphragm seal when supplied with wetted parts compatible with the process not only protects the gauge from corrosion attack, but also serves to prevent viscous or extremely dirty media from clogging the Bourdon tube. When attached to a gauge, a diaphragm seal will add an additional minimum error of 0.5% to the gauge\/seal assembly.<\/div>\n
          .<\/div>\n

          CONCLUSION<\/strong><\/span><\/p>\n

          To properly select a pressure gauge, consider the gauge process, range, environment, accuracy, dial size, connection and mounting requirements.<\/p>\n

          .<\/p>\n

          4- \u062a\u0635\u0645\u064a\u0645\/\u0646\u0648\u0639 \u062c\u0633\u0645 \u0627\u0644\u0639\u062f\u0627\u062f Case Style \/ Material<\/span><\/h2>\n

          \u062a\u064e\u062a\u0636\u0645\u0651\u0646\u064f \u0627\u0644\u0625\u0639\u062a\u0628\u0627\u0631\u0627\u062a\u064f \u0627\u0644\u0628\u064a\u0626\u064a\u0629\u064f \u0643\u0644 \u0645\u0646 \u062f\u0631\u062c\u0629\u064f \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u0648\u0633\u0637 \u0627\u0644\u0645\u062d\u064a\u0637\u060c \u0648\u0627\u0644\u063a\u0628\u0627\u0631 \u0648\u0627\u0644\u062c\u0632\u064a\u0626\u0627\u062a \u0627\u0644\u062a\u064a \u064a\u062d\u0645\u0644\u0647\u0627 \u0627\u0644\u0647\u0648\u0627\u0621\u060c \u0648\u062a\u0643\u062b\u0641 \u0627\u0644\u0633\u0648\u0627\u0626\u0644 \u0648\u0627\u0644\u0631\u0637\u0648\u0628\u0629 \u0648\u0627\u0644\u0645\u0627\u0621 \u0648\u0627\u0644\u0645\u0648\u0627\u062f \u0627\u0644\u0643\u064a\u0645\u064a\u0627\u0648\u064a\u0629\u060c \u0648\u0643\u0644\u0647\u0627 \u0639\u0648\u0627\u0645\u0644 \u064a\u064f\u0645\u0652\u0643\u0650\u0646\u064f \u0623\u064e\u0646\u0652 \u062a\u0624\u062b\u0631 \u0639\u0644\u0649 \u0623\u062f\u0627\u0621\u0650 \u0627\u0644\u0639\u062f\u0627\u062f. \u0642\u064e\u062f\u0652 \u062a\u064f\u0624\u062b\u0651\u0631\u064f \u062f\u0631\u062c\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u0629 \u0645\u0643\u0627\u0646 \u0627\u0644\u0639\u0645\u0644 \u0639\u0644\u0649 \u062f\u0642\u0629\u0650 \u0648\u0633\u0644\u0627\u0645\u0629\u0650 \u0645\u0628\u064a\u0646 \u0627\u0644\u0636\u063a\u0637 .<\/p>\n

          \u0648\u0645\u0628\u064a\u0646\u0627\u062a \u0627\u0644\u0636\u063a\u0637 \u0645\u062a\u0648\u0641\u0631\u0629 \u0628\u0646\u0648\u0639\u064a\u0647\u0627 \u0627\u0644\u0630\u064a \u064a\u0642\u0648\u0645 \u0628\u0639\u0645\u0644 \u062a\u0639\u0648\u064a\u0636 \u0644\u0644\u062d\u0631\u0627\u0631\u0629\u00a0Temperature Compensated<\/span> \u0648\u0627\u0644\u0630\u064a \u0644\u0627\u064a\u0642\u0648\u0645 \u0628\u0639\u0645\u0644 \u062a\u0639\u0648\u064a\u0636 \u0644\u0644\u062d\u0631\u0627\u0631\u0629\u00a0Non-Temperature Compensated<\/span> . \u0648\u0642\u062f \u062a\u062a\u0637\u0644\u0628 \u0627\u0644\u0638\u0631\u0648\u0641 \u0627\u0644\u062c\u0648\u064a\u0629 \u0627\u0644\u0645\u062d\u064a\u0637\u0629 \u0639\u0632\u0644 \u0645\u0628\u064a\u0646 \u0627\u0644\u0636\u063a\u0637 \u0639\u0646 \u062f\u0631\u062c\u0627\u062a \u0627\u0644\u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u0645\u0641\u0631\u0637\u0629 \u0648\u0639\u0646\u062f\u0645\u0627 \u064a\u064f\u0637\u0644\u0628 \u0630\u0644\u0643 \u0646\u062d\u0642\u0642\u0647 \u0628\u0639\u0632\u0644 \u0627\u0644\u0639\u062f\u0627\u062f \u0639\u0646 \u0627\u0644\u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u0639\u0627\u0644\u064a\u0629 \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0648\u0635\u0644\u0629 \u0645\u0639\u062f\u0646\u064a\u0629 \u0645\u0631\u0646\u0629.<\/p>\n

          \u0648\u0639\u0646\u062f\u0645\u0627 \u062a\u0643\u0648\u0646 \u0627\u0644\u0638\u0631\u0648\u0641 \u0627\u0644\u062c\u0648\u064a\u0629 \u0627\u0644\u0645\u062d\u064a\u0637\u0629 \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 \u0627\u0644\u0622\u0643\u0644 Corrosive<\/span> \u0623\u0648 \u0648\u062c\u0648\u062f \u0643\u0645\u064a\u0629 \u0643\u0628\u064a\u0631\u0629 \u0645\u0646 \u0627\u0644\u063a\u0628\u0627\u0631 \u0623\u0648 \u0627\u062d\u062a\u0645\u0627\u0644 \u062a\u0639\u0631\u0636 \u0627\u0644\u062c\u0647\u0627\u0632 \u0644\u0628\u0644\u0644 \u0623\u0648 \u0631\u0637\u0648\u0628\u0629 \u0623\u0648 \u0645\u0627\u0621 \u063a\u0633\u064a\u0644 \u0623\u0648 \u0645\u0637\u0631 \u0641\u0623\u0637\u0644\u0628 \u0646\u0648\u0639 (\u0645\u0642\u0627\u0648\u0645 \u0644\u0644\u0638\u0631\u0648\u0641 \u0627\u0644\u062c\u0648\u064a\u0629) \u0645\u062d\u0643\u0645 \u0627\u0644\u063a\u0644\u0642\/ \u0623\u0648 \u0627\u0644\u0645\u0645\u062a\u0644\u0626 \u0628\u0633\u0627\u0626\u0644 Weatherproof\/Hermetically sealed or liquid filled<\/span> .<\/p>\n

          .<\/p>\n

          \u0645\u0646 \u0623\u0645\u062b\u0644\u0629 \u0627\u0644\u0645\u0648\u0627\u062f \u0627\u0644\u062a\u064a \u064a\u062a\u0645 \u0635\u0646\u0639 \u062c\u0633\u0645 \u0627\u0644\u0645\u0628\u064a\u0646 (\u0627\u0644\u062d\u0627\u0648\u064a\u0629 Case<\/span>) \u0645\u0646\u0647\u0627 :<\/p>\n

            \n
          • \u0627\u0644\u0635\u0644\u0628 \u0627\u0644\u0645\u0642\u0627\u0648\u0645 \u0644\u0644\u0635\u062f\u0623 Stainless Steel 304<\/span> .<\/span><\/span><\/li>\n
          • \u0627\u0644\u0635\u0644\u0628 \u0627\u0644\u0645\u0642\u0627\u0648\u0645 \u0644\u0644\u0635\u062f\u0623\u00a0Stainless Steel 316L<\/span><\/span> .<\/span><\/li>\n
          • \u0627\u0644\u0635\u0644\u0628 \u0627\u0644\u0643\u0631\u0628\u0648\u0646\u064a\u00a0Carbon Steel<\/span> \u0648\u0639\u0627\u062f\u0629 \u0645\u0627 \u064a\u0643\u0648\u0646 \u0645\u0637\u0644\u064a\u00a0Painted<\/span> \u0628\u0644\u0648\u0646 \u0645\u0639\u064a\u0646.<\/span><\/li>\n
          • \u0627\u0644\u0628\u0644\u0627\u0633\u062a\u064a\u0643\u00a0Plastic<\/span> <\/span>.<\/span><\/li>\n
          • \u0627\u0644\u0644\u062f\u0627\u0626\u0646 \u0627\u0644\u062d\u0631\u0627\u0631\u064a\u0629\u00a0Thermoplastics<\/span><\/span> .
            \n<\/span>.<\/li>\n<\/ul>\n

            Environmental considerations include ambient temperature, air-borne particulate, condensation, humidity, water and chemicals, all of which can affect gauge performance.<\/p>\n

            Ambient temperature may affect the accuracy and integrity of the gauge. Gauges are available either temperature compensated or non-temperature compensated. Ambient conditions may require that the gauge be isolated from temperature extremes. When required, the gauge should be isolated from temperature extremes with a flexible line assembly.<\/p>\n

            When ambient conditions are corrosive, contain a large number of particulate or if the gauge will be exposed to a wet or humid environment like humidity, wash-downs or rain, specify a gauge that is weatherproof\/hermetically sealed or liquid filled.<\/p>\n

            *<\/p>\n

            5- \u062d\u062c\u0645 \u0637\u0631\u0641 \u0627\u0644\u062a\u0648\u0635\u064a\u0644 Connection Size<\/span><\/h2>\n

            \u062a\u062a\u0648\u0641\u0631 \u0645\u0628\u064a\u0646\u0627\u062a \u0627\u0644\u0636\u063a\u0637 \u0628\u0623\u0646\u0648\u0627\u0639 \u0645\u062e\u062a\u0644\u0641\u0629 \u0645\u0646 \u0623\u0637\u0631\u0627\u0641 \u0627\u0644\u062a\u0648\u0635\u064a\u0644 \u0645\u0646\u0647\u0627 NPT<\/span> \u0648 DIN<\/span> \u0648 JIS<\/span> \u0648 BSP<\/span> \u0648 SAE<\/span> . \u0641\u0627\u0644\u0645\u0628\u064a\u0646\u0627\u062a \u0630\u0627\u062a \u0627\u0644\u0623\u0648\u062c\u0647 \u0627\u0644\u062a\u064a \u062a\u0628\u062f\u0623 \u0628\u0645\u0642\u0627\u0633 4.25 ” \u062a\u062a\u0648\u0641\u0631 \u0641\u064a \u0645\u0639\u0638\u0645 \u0627\u0644\u0623\u062d\u064a\u0627\u0646 \u0628\u0637\u0631\u0641 \u062a\u0648\u0635\u064a\u0644 \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 0.5 ” NPT<\/span> \u0644\u062a\u0648\u0641\u064a\u0631 \u062a\u062b\u0628\u064a\u062a \u0623\u0641\u0636\u0644 \u0644\u0644\u0645\u0628\u064a\u0646.<\/p>\n

            \u0648\u0627\u0644\u0639\u0648\u0627\u0645\u0644 \u0627\u0644\u062a\u064a \u0646\u0623\u062e\u0630\u0647\u0627 \u0641\u064a \u0627\u0639\u062a\u0628\u0627\u0631\u0646\u0627 \u0639\u0646\u062f \u0627\u062e\u062a\u064a\u0627\u0631 \u0646\u0648\u0639 \u0637\u0631\u0641 \u0627\u0644\u062a\u0648\u0635\u064a\u0644 \u0647\u064a \u0636\u063a\u0637 \u0627\u0644\u062a\u0634\u063a\u064a\u0644\u00a0Process Pressures<\/span> \u0648\u062d\u062c\u0645 \u0627\u0644\u0639\u062f\u0627\u062f\u00a0Gauge Size<\/span> \u0648\u0648\u0632\u0646\u0647\u00a0Weight<\/span> \u0648\u0627\u0644\u0645\u0633\u0627\u062d\u0629 \u0627\u0644\u0645\u062a\u0648\u0641\u0631\u0629 \u062d\u0648\u0644\u0647 \u0648\u062f\u0631\u062c\u0629 \u0645\u0646\u0639 \u0627\u0644\u062a\u0633\u0631\u0628\u00a0Leak Integrity<\/span> \u0648\u0643\u0630\u0644\u0643 \u0627\u0644\u062e\u0628\u0631\u0629 \u0627\u0644\u0633\u0627\u0628\u0642\u0629.<\/p>\n

             <\/p>\n

            \u0645\u0644\u0627\u062d\u0638\u0629<\/strong><\/span><\/div>\n
            \u0642\u062f \u062a\u062e\u062a\u0644\u0641 \u0645\u0627\u062f\u0629 \u0637\u0631\u0641 \u0627\u0644\u062a\u0648\u0635\u064a\u0644\u00a0Connection<\/span> \u0639\u0646 \u0645\u0627\u062f\u0629 \u0623\u062c\u0632\u0627\u0621 \u0627\u0644\u0642\u064a\u0627\u0633 \u060c \u0648\u0644\u0630\u0644\u0643 \u064a\u062c\u0628 \u062a\u062d\u062f\u064a\u062f \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u0645\u0637\u0644\u0648\u0628\u0629 \u0628\u062f\u0642\u0629.<\/div>\n

            *<\/p>\n

            Gauges are available with a variety of connections including NPT, DIN, JIS, BSP & SAE. Process pressure gauges with 41\u20442\u02dd dial sizes or larger are most often supplied with a 1\u20442\u02dd NPT connection to best support the gauge.<\/p>\n

            Factors to consider when selecting a pressure gauge connection include process pressures, gauge size and weight, space limitations, leak integrity, and past experience.<\/p>\n

            .<\/p>\n

            6- \u0645\u0643\u0627\u0646 \u0637\u0631\u0641 \u0627\u0644\u062a\u0648\u0635\u064a\u0644 Connection Location<\/span><\/h2>\n
            \u062a\u0648\u062c\u062f \u0639\u062f\u0629 \u0637\u0631\u0642 \u0644\u0644\u062a\u062b\u0628\u064a\u062a \u0637\u0628\u0642\u0627 \u0644\u0644\u062a\u0637\u0628\u064a\u0642 \u0641\u064a\u0645\u0643\u0646 \u0623\u0646 \u064a\u0643\u0648\u0646 \u0639\u0644\u064a \u0627\u0644\u062e\u0637 \u0645\u0628\u0627\u0634\u0631\u0629 \u0628\u0648\u0635\u0644\u0629 \u0633\u0641\u0644\u064a\u0629 Lower Connection<\/span> \u060c \u0623\u0648 \u0645\u0645\u0643\u0646 \u0623\u0646 \u062a\u0643\u0648\u0646 \u0641\u064a \u0644\u0648\u062d\u0629 \u062a\u062d\u0643\u0645 \u0648\u064a\u0643\u0648\u0646 \u0627\u0644\u0645\u0628\u064a\u0646 \u0628\u0648\u0635\u0644\u0629 \u062e\u0644\u0641\u064a\u0629 (\u062e\u0644\u0641\u064a\u0629 \u0648\u0633\u0637 \u0623\u0648 \u062e\u0644\u0641\u064a\u0629 \u0633\u0641\u0644\u064a\u0629) \u0648\u0627\u0644\u062a\u062b\u0628\u064a\u062a \u0641\u064a \u0627\u0644\u0644\u0648\u062d\u0629 \u0645\u0645\u0643\u0646 \u0623\u0646 \u064a\u0643\u0648\u0646 \u0628\u062a\u062c\u0647\u064a\u0632\u0629 \u062a\u062b\u0628\u064a\u062a \u062d\u0631\u0641 \u064a\u0648 U \u2013 Clamp<\/span> \u0623\u0648 \u0639\u0646 \u0637\u0631\u064a\u0642 \u0645\u0633\u0627\u0645\u064a\u0631 \u062a\u062b\u0628\u064a\u062a \u0623\u0645\u0627\u0645\u064a\u0629 \u0644\u0644\u0645\u0628\u064a\u0646 .<\/div>\n
            \"\"<\/div>\n

            \u0644\u0630\u0627 \u062e\u0630 \u0641\u064a \u0627\u0639\u062a\u0628\u0627\u0631\u0643 \u062e\u064a\u0627\u0631\u0627\u062a \u0627\u0644\u062a\u0631\u0643\u064a\u0628 \u0627\u0644\u062a\u0627\u0644\u064a\u0629 \u0639\u0646\u062f \u0627\u062e\u062a\u064a\u0627\u0631 \u0645\u0628\u064a\u0646 \u0636\u063a\u0637 :<\/p>\n