Sɛ nsuo a ɛretu wɔ check valve no mu a, dɛn na ɛsɛ sɛ meyɛ

Hwɛ valve ahorow no muyɛ nneɛma a ɛho hia a wɔde siw nsu ano wɔ nnɛyi nnwuma mu na mprempren ɛyɛ valve ahorow a wɔde di dwuma kɛse no mu biako. Nea efi mu ba no trɛw yiye, a nea ɛka ho ne valve ahorow ahorow te sɛ cut-off type, regulating type, throttling type, needle type, ne throttling cut-off venting type, a ebetumi atwa medium no ntɛmntɛm na ɛsan nso ahwɛ na throttle medium a ɛwɔ pipeline no mu no.

Installation akwankyerɛ a ɛfacheck valve ahorow a wɔde hwɛ nneɛma sowɔtaa kyekyɛ mu abien, biako yɛ horizontal installation, kyerɛ sɛ, valve dua no wɔ vertical kwan so, na channel axis a valve no yɛ parallel ne horizontal plane. Ɔkwan foforo ne vertical installation direction, baabi a valve dua no ne horizontal plane no hyia na valve passage axis no gyina vertical plane no so. Wɔnam design institute no pipeline nhyehyɛe so na ɛkyerɛ akwankyerɛ a wɔde besisi valve ahorow no, a ɛkyerɛ sɛ wɔde besisi hɔ wɔ soro ne fam nyinaa yɛ akwan a wɔtaa fa so de si hɔ na wontumi nkwati. Sɛ wɔyɛ globe valve no na wɔboaboa ano wie a, ɛsɛ sɛ wɔyɛ sealing performance test, na bere a wɔatwa sɔhwɛ no akyi nkutoo na wobetumi de amena. Mpɛn pii no, valve no wɔ sealing adwumayɛ pa bere a wɔreyɛ sɔhwɛ no, nanso emu nsu a ɛtwetwe ho haw betumi aba bere a wɔaboaboa valve no ano ayɛ no vertical pipeline no.

Nsɔano a ɛwɔ soro nocheck valve ahorow a wɔde hwɛ nneɛma sowɔtaa kyekyɛ mu abien: nsɔano a ɛyɛ tratraa ne nsɔano a ɛyɛ kɔntɔnkrɔn. Gyina nsɛm a efi mfiridwuma mu dwumadie mu so no, wɔ check valves a wɔde si hɔ gyina hɔ no mu no, nsuo a ɛtwetwe taa ba wɔ cone seal type globe valves mu, a ɛtaa twetwe bere a wɔde di dwuma nea edi kan wɔ bere a wɔde ahyɛ mu akyi. Nanso, nkwa nna a flat seal globe valves a wɔde si hɔ wɔ soro ne fam no yɛ pɛ.

Abusuabɔ a ɛda check valve no mu nneɛma ntam ne sɛ, packing ne soro sealing seat no na ɛhyɛ valve stem no atifi awiei, na wɔde clearance fit so de valve stem no ase awiei no bata valve disc no ho. Valve disc no ase awiei no nsɔano no ne valve nkongua no nsɔano no di nkitaho ma ɛyɛ nsɔano. Sɛ valve dua no pia valve disc no kɔ valve seat no so a, nkitahodi pa betumi aba valve seat no sealing surface ne valve disc no ntam. Valve disc sealing cone no axis no twe ne ho fi valve seat sealing cone no axis no ho. Sɛ valve dua no pia valve disc no kɔ valve no nkongua no so a, nsɔano no ani ntumi nhyia ankasa na ɛnsɔ ano, na ɛma nsuo nkɔ mu. Valve disc no a ɛkɔ fam no ne ade titiriw a ɛde nsu a ɛtwetwe wɔ valve ahorow no mu ba. Nneɛma abien nti na valve disc no kɔ fam dodo. Nea edi kan no, nhyiam kwan bi da valve disc ne valve dua no ntam, na valve disc no ti bɛdan akɔ fam esiane tumi a ɛtwe ade ba fam nti; Asɛm a ɛto so abien ne sɛ, sɛ wɔde valve dua no si hɔ tẽẽ a, ɛbɛyɛ cantilever beam. Esiane tumi a ɛtwe ade ba fam nti, valve dua no kɔ fam bending deformation, na ɛma valve disc no a ɛkɔ fam no yɛ kɛse bio.