Hwɛ sɛnea nhyɛso a ɛko tia check valve no kɔ soro .

Dry Fluid System Industry no ayɛ nea ɛwɔ hɔ bɛyɛ mfe 20 ni, na nkurɔfo taa bisa .Hwɛ valve ahorow no mu ., "Nhyɛso dodow ahe na saa ade yi betumi agyina ano?" Ɛsɛ sɛ wuhu sɛ check valves, sɛ "one-way gatekeepers," ɛnyɛ sɛ ɛho hia sɛ esiw backflow ano nko, na mmom wogyina nhyɛso shocks ano wɔ nhyehyɛe no mu nso - wɔn "pressure resistance ability" no ne ahobammɔ a ɛwɔ pipeline no nyinaa mu no wɔ abusuabɔ tẽẽ, nanso saa tumi yi nyɛ nea wɔahyɛ da ayɛ na nsɛm pii wom.

Momma yɛnka nneɛma a wɔde yɛ nneɛma no nkɛntɛnso ho asɛm kan, ɛnyɛ nsonsonoe ketewaa bi. Dadeɛ check valve a wɔtaa de gu mu no yɛ "low-pressure expert", a mpɛn pii no ɛtumi gyina nhyɛsoɔ a ɛyɛ 1.0 kɔsi 1.6 MPa ano, na wɔde di dwuma kɛseɛ wɔ nsuo a wɔde ma ne nsuo a ɛfiri nsuo mu. Bere a etwaam no meboaa ma wosiesiee nsu paipu no wɔ mpɔtam dedaw no mu, cast iron check valve a miyii no no gyee mfe anum ansa na mede bedi dwuma na ɛboro nea ɛdɔɔso a mede bedi da biara da nsu nhyɛso ho dwuma. Ná ɛka a wɔbɔ no nso sua, nanso na entumi nkɔ tebea horow a nhyɛso kɛse wom mu.

Sɛ wɔde dade a wɔde ayɛ ade si ananmu a .Hwɛ valve no mu ., "pressure resistance" no bɛba, na nhyɛso a efi 2.5 kosi 6.4 MPa no betumi akyere no denneennen. Mehunuu wɔ refineries mu sɛ medium ne high pressure pipelines a ɛde crude oil kɔ no nyinaa gyina cast steel check valves so - nsuo nhyɛsoɔ no sakra, nanso valve no nipadua no da so ara nsakra. Sɛ wɔde dade a wɔde ayɛ ade si ananmu a, anka ɛbɛyɛ ɔhaw bere tenten a atwam ni, na kampɛsɛ wɔasiw nsu a ɛbɛsan akɔ akyi ne nnwinnade a ɛbɔ ho ban no ano.

Nea ahoɔden wom sen biara ne stainless steel check valve, a ɛnyɛ sɛ ɛwɔ corrosion resistance nko, na mmom ebetumi agyina nhyɛso a ɛkɔ 10MPa anaa nea ɛboro saa nso ano. Afe a etwaam no wɔ Po so Mfiridwuma Ho Dwumadi no mu no, nsu afiri a ɛwɔ po mu nsu mu no de dii dwuma, na na ɛsɛ sɛ etumi gyina po mu nsu a ɛyɛ den no ano na esiw po mu nsu a ɛbɛsɛe no ano. Ɛkame ayɛ sɛ wɔde adi dwuma mfe abien a ɔhaw biara nni ho. Nnuan ne nnuruyɛ adwumayɛbea ahorow nso wɔ hɔ a ɛho hia kɛse ma ahotew ne nsɛe a wɔko tia. Stainless steel check valves betumi agyina nhyɛso a ɛba no ano a ɛrengu ade no ho fĩ, na ɛde ɔbo biako akunkum nnomaa abien.

Nea ɛka nneɛma no ho no, nhyehyɛe a wɔayɛ no nso de ‘ahyɛde a ɛko tia nhyɛso’ sie. rotary no .Hwɛ valve no mu .no te sɛ ɔpon ano hwɛfo a obetumi "abue ɔpon no denam dan a wobɛdannan so". Sɛ rocker mprɛte no di akɔneaba a, nhyɛso no betumi atrɛw wɔ ɔdan no mu, na ama ayɛ nea ɛyɛ den titiriw wɔ mmeae a nhyɛso kɛse wom; Lift type check valves no te sɛ elevators, a valve discs no twetwe kɔ soro ne fam na ɛyɛ nsɔano pa. Nanso, mfonini ahorow a wɔtaa yɛ no fata kɛse ma nhyɛso a ɛwɔ mfinimfini ne nea ɛba fam, nanso nsusuwii soronko bi nso betumi agyina nhyɛso pii ano. Paw sɛnea ahiade pɔtee bi te.

Awiei koraa no, ɛsɛ sɛ mekae wo sɛ: Sɛ worepaw check valve a, nhwɛ "pressure resistance value" no kɛkɛ, ɛsɛ sɛ wudi kan te wo nhyehyɛe no suban ase - adwumayɛ nhyɛso no kɔ soro dɛn? So nsu a ɛwɔ ntam, ngo, anaa nsu a ɛyɛ mmerɛw no yɛ nsu a ɛyɛ mmerɛw? Ɛdenam eyinom a wɔbɛte ase yiye na wɔapaw nneɛma ne nhyehyɛe ahorow a ɛne no hyia no so nkutoo na check valve no betumi asoa "ahobammɔ adesoa" no ampa. Sɛ ɛnte saa a, sɛ wɔde valve a eye sen biara mpo di dwuma sɛ wɔde di dwuma wɔ baabi a ɛnteɛ a!