Kedu otu esi agbanwe Valve Pressure PSI, BAR na MPA?

Mgbanwe PSI na MPA, PSI bụ nkeji nrụgide, nke a kọwara dị ka paụnd/square inch nke Britain, 145PSI = 1MPa, a na-akpọkwa PSI Bekee Pound kwa square in. P bụ Pound, S bụ Square, i bụkwa Inch. Ị nwere ike ịgbakọ nkeji niile nwere nkeji ọha:1 mmanya≈14.5PSI, 1PSI = 6.895kpa = 0.06895barA na-eji PSI eme ihe dị ka otu Europe na United States na mba ndị ọzọ.

Na Chaịna, anyị na-akọwakarị nrụgide nke gas na "kg" (kama "paụnd"). Akụkụ ahụ bụ "KG/CM^2″, nrụgide nke otu kilogram bụkwa ike nke otu kilogram na otu square centimita.

Ngwa ndị a na-ejikarị eme ihe ná mba ọzọ bụ "PSI", otu kpọmkwem bụ "LB/In2", nke bụ "paụnd/square inch". Ngwa a dị ka akara okpomọkụ (F).

Tinyere nke ahụ, e nwere PA (Pascal, otu Newton dị na otu square mita), KPA, MPA, BAR, kọlụm mmiri millimeter, millimeter mercury na nkeji nrụgide ndị ọzọ.

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

1 Nrụgide ikuku nkịtị (ATM) = 0.101325 MPa (MPA) = 1.0333 Bar (BAR)

Ebe ọ bụ na ọdịiche nke unit ahụ dị obere, ị nwere ike icheta nke a:

1 Ogwe (BAR) = 1 Nrụgide ikuku nkịtị (ATM) = 1 kg/sentimita sụkwịa = 100 kilo (KPA) = 0.1 MPa (MPA)

Mgbanwe nke PSI bụ dịka ndị a:

1 Nrụgide ikuku nkịtị (ATM) = 14.696 paụnd/inch 2 (PSI)

Mmekọrịta mgbanwe nrụgide:

Nrụgide 1 Ogwe (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)

1 mm kọlụm mmiri (mmh2O) = 9.80665 Pa (PA)

1 Nrụgide ikuku injinịa = 98.0665 kite (KPA)

1 Knipa (KPA) = 0.145 pound/inch 2 (PSI) = 0.0102 kg/cm 2 (kgf/cm2) = 0.0098 nrụgide ikuku (ATM)

Ike paụnd 1/inch 2 (PSI) = 6.895 kenta (KPA) = 0.0703 kg/cm 2 (kg/cm2) = 0.0689 Ogwe (ogwe) = 0.068 nrụgide ikuku (ATM)

1 Nrụgide ikuku nkịtị (ATM) = 101.325 Kenpa (KPA) = 14.696 pound/inch 2 (PSI) = 1.0333 Bar (BAR)

E nwere ụdị abụọvalvụ: otu bụ usoro "nrụgide aha" nke Germany (gụnyere mba m) nọchitere anya na okpomọkụ nkịtị (na China bụ ogo 100 na Germany bụ ogo 120). Otu bụ "usoro nrụgide okpomọkụ" nke US nọchitere anya na okpomọkụ ụfọdụ na okpomọkụ ụfọdụ.

N'ime usoro okpomọkụ na nrụgide dị na United States, ewezuga 150LB dabere na ogo 260, ọkwa ndị ọzọ dị na ọkwa niile dabere na ogo 454.

Valvụ ígwè carbon nke dị kilogram 25 (150PSI = 1MPa) nke dị ogo 25 bụ ogo 260, nrụgide a na-ekwe ka ọ dị bụ 1MPa, nrụgide ojiji ya n'ọnọdụ okpomọkụ ụlọ karịrị 1MPa, ihe dị ka 2.0MPa.

Ya mere, n'ozuzu, ọkwa nrụgide aha nke kwekọrọ na ọkọlọtọ US 150LB bụ 2.0MPa, ọkwa nrụgide aha nke kwekọrọ na 300LB bụkwa 5.0MPa wdg.

Ya mere, ị gaghị agbanwe nrụgide aha na ọkwa okpomọkụ dịka usoro mgbanwe nrụgide si dị.