Kodi mungasinthe bwanji Valve Pressure PSI, BAR ndi MPA?

Kusintha kwa PSI ndi MPA, PSI ndi gawo la kupanikizika, lomwe limatanthauzidwa kuti British pound/square inchi, 145PSI = 1MPa, ndipo PSI English imatchedwa Pounds pa sikweya mu. P ndi Pound, S ndi Square, ndipo i ndi Inch. Mutha kuwerengera mayunitsi onse ndi mayunitsi a anthu onse:1bar≈14.5PSI, 1PSI = 6.895kpa = 0.06895barEurope ndi United States ndi mayiko ena azolowera kugwiritsa ntchito PSI ngati gawo limodzi.

Ku China, nthawi zambiri timafotokoza kupanikizika kwa mpweya mu "kg" (m'malo mwa "paundi"). Chigawo cha thupi ndi "KG/CM^2″, ndipo kupanikizika kwa kilogalamu imodzi ndi mphamvu ya kilogalamu imodzi pa sentimita imodzi ya sikweya.

Mayunitsi omwe amagwiritsidwa ntchito kwambiri kunja ndi “PSI”, ndipo yuniti yeniyeni ndi “LB/In2″, yomwe ndi “paundi/sikweya inchi”. Yuniti iyi ili ngati chizindikiro cha kutentha (F).

Kuphatikiza apo, pali PA (Pascal, Newton imodzi ili pa mita imodzi ya sikweya), KPA, MPA, BAR, millimeter water column, millimeter mercury ndi mayunitsi ena opanikizika.

1 Bar (BAR) = 0.1 MPa (MPA) = 100 Knaka (KPA) = 1.0197 kg/square centimeter

1 Kuthamanga kwa mpweya wabwino (ATM) = 0.101325 MPa (MPA) = 1.0333 Bar (BAR)

Popeza kusiyana kwa mayunitsi ndi kochepa kwambiri, mutha kukumbukira izi:

1 Bar (BAR) = 1 Kuthamanga kwa mpweya wokhazikika (ATM) = 1 kg/sikweya sentimita = 100 kilo (KPA) = 0.1 MPa (MPA)

Kusintha kwa PSI kuli motere:

1 Kuthamanga kwa mpweya wabwino (ATM) = 14.696 pound/inch 2 (PSI)

Ubale wosintha mphamvu:

Pressure 1 Bar (BAR) = 10^5 Pa (PA) 1 Dadin/cm 2 (dyn/cm2) = 0.1 Pa (PA)

1 Terr = 133.322 Pa (PA) 1 mm Hg (mmHg) = 133.322 Pa (PA)

Mzere wamadzi wa 1 mm (mmh2O) = 9.80665 Pa (PA)

1 Kupanikizika kwa mpweya wauinjiniya = 98.0665 kite (KPA)

1 Knipa (KPA) = 0.145 mapaundi/inchi 2 (PSI) = 0.0102 kg/cm 2 (kgf/cm2) = 0.0098 kuthamanga kwa mpweya (ATM)

Mphamvu ya paundi imodzi/inchi 2 (PSI) = 6.895 kenta (KPA) = 0.0703 kg/cm 2 (kg/cm2) = 0.0689 Mzere (mzere) = 0.068 kuthamanga kwa mpweya (ATM)

1 Kupanikizika kwa mpweya (ATM) = 101.325 Kenpa (KPA) = 14.696 mapaundi/inchi 2 (PSI) = 1.0333 Bar (BAR)

Pali mitundu iwiri yamavavu: chimodzi ndi dongosolo la "kupanikizika pang'ono" lomwe limaimiridwa ndi Germany (kuphatikiza dziko langa) pa kutentha kwabwinobwino (ku China ndi madigiri 100 ndipo Germany ndi madigiri 120). Chimodzi ndi "dongosolo la kupsinjika kwa kutentha" lomwe limaimiridwa ndi US pa kutentha kwina pa kutentha kwina.

Pakati pa kutentha ndi kuthamanga kwa mpweya ku United States, kupatula 150LB kutengera madigiri 260, milingo ina pamlingo uliwonse imadalira madigiri 454.

Valavu yachitsulo cha kaboni ya mapaundi 250 (150PSI = 1MPa) No. 25 inali madigiri 260, ndipo mphamvu yololedwa inali 1MPa, ndipo mphamvu yogwiritsira ntchito kutentha kwa chipinda inali yayikulu kwambiri kuposa 1MPa, pafupifupi 2.0MPa.

Chifukwa chake, kawirikawiri, mulingo wokakamiza wofanana ndi muyezo wa US wa 150LB ndi 2.0MPa, ndipo mulingo wokakamiza wofanana ndi 300LB ndi 5.0MPa ndi zina zotero.

Chifukwa chake, simungasinthe kuchuluka kwa kuthamanga kwa magazi ndi kutentha malinga ndi njira yosinthira kuthamanga kwa magazi.