Yiŋtoo ni yɔɔ check valve ni akɛtsuɔ nii lɛ sɛɛ ji koni ekɛtsi tsɔne ni haa nu lɛ hoɔ kɛyaa sɛɛ lɛ naa, ni bei pii lɛ, akɛ check valve woɔ pɔmp lɛ kpojiemɔ lɛ he. Kɛfata he lɛ, esa akɛ akɛ check valve hu awo kɔmprɛsa lɛ kpojiemɔ lɛ he. Yɛ kukufoo mli lɛ, bɔni afee ni atsĩ sɛɛkuu ni tsɔɔ mli lɛ naa lɛ, esa akɛ akɛ check valve awo nibii ni akɛtsuɔ nii lɛ, tsɔne lɛ loo paipii lɛ nɔ.
Yɛ gbɛ ni waaa nɔ lɛ, akɛ valves ni damɔ shi shiŋŋ tsuɔ nii yɛ paipii ni damɔ shi shiŋŋ ni kɛlɛ ji 50mm lɛ anɔ. Abaanyɛ akɛ lift check valve ni tsɔɔ mli tɛ̃ɛ lɛ awo paipii ni yɔɔ ŋwɛi kɛ nɔ ni damɔ shi lɛ fɛɛ nɔ. Bei pii lɛ, akɛ shishigbɛ valve lɛ woɔ paipii ni damɔ shi shiŋŋ ni yɔɔ pɔmp lɛ mli lɛ pɛ nɔ, ni mligbɛ nu lɛ hoɔ kɛjɛɔ shishigbɛ kɛyaa ŋwɛi.
Swing check valve baanyɛ afee nitsumɔ mli hewalɛ ni nɔ kwɔ waa, PN baanyɛ ashɛ 42MPa, ni DN hu baanyɛ afee agbo waa, nɔ ni fe fɛɛ lɛ baanyɛ ashɛ nɔ ni fe 2000mm. Taakɛ nibii srɔtoi ni yɔɔ ŋshɔŋloo lɛ kɛ ŋshɔŋloo lɛ mli lɛ tsɔɔ lɛ, abaanyɛ akɛtsu nii yɛ nitsumɔ mli nibii fɛɛ kɛ nitsumɔ mli latsaa he fɛɛ he. Nɔ ni akɛtsuɔ nii ji nu, lasu, gas, nɔ ni fiteɔ nii, fɔ, niyenii, tsofa, kɛ ekrokomɛi.
Swing check valve lɛ he ni akɛwoɔ lɛ bɛ husu, bei pii lɛ, akɛwoɔ paipii ni yɔɔ ŋwɛigbɛ lɛ nɔ, shi abaanyɛ akɛwo paipii ni damɔ shi shiŋŋ loo paipii ni yɔɔ ŋwɛigbɛ lɛ hu nɔ.
Be ni akɛtsuɔ nii kɛhaa butterfly check valve lɛ ji low pressure kɛ diameter agbo, ni be ni akɛwoɔ mli lɛ hu faaa. Ejaakɛ nitsumɔ mli hewalɛ ni yɔɔ ŋmeii akwɛmɔ valve lɛ mli lɛ nyɛŋ afee nɔ ni nɔ kwɔ waa, shi nominal diameter lɛ baanyɛ afee nɔ ni da waa, ni baanyɛ ashɛ nɔ ni fe 2000mm, shi nominal hewalɛ lɛ baa shi fe 6.4MPa. Abaanyɛ afee butterfly check valve lɛ wafer henɔ, ni bei pii lɛ, akɛwoɔ paipii lɛ flanges enyɔ lɛ ateŋ yɛ wafer tsakpaa gbɛ nɔ.
Nibii ni akɛwoɔ mli lɛ bɛ husu, abaanyɛ akɛwo paipii ni damɔ shi shiŋŋ, paipii ni damɔ shi shiŋŋ loo paipii ni yɔɔ ŋwɛigbɛ lɛ nɔ.
Diaphragm kwɛmɔ valve lɛ hi kɛha paipii ni nu hama nyɛɔ etswaa lɛ. Diaphragm lɛ baanyɛ ajie nu hama ni sɛɛkuu ni tsɔɔ mli lɛ kɛbaa lɛ jogbaŋŋ. Akɛni diaphragm check valves lɛ anitsumɔ mli hulutsoo kɛ nitsumɔ mli hewalɛ ji nɔ ni diaphragm nibii lɛ tsiɔ naa hewɔ lɛ, bei pii lɛ akɛtsuɔ nii yɛ paipii ni hulutsoo baa shi kɛ hulutsoo ni sa mli, titri lɛ kɛha paipii ni akɛwoɔ nu mli lɛ amli. Yɛ anɔkwale mli lɛ, nitsumɔ mli latsaa ni yɔɔ mli lɛ ji -20~120°C teŋ, ni nitsumɔ mli hewalɛ lɛ faaa fe 1.6MPa, shi diaphragm check valve lɛ baanyɛ ashɛ diameter ni da fe no he, ni DN ni fe fɛɛ lɛ baanyɛ afee nɔ ni fe 2000mm.
Akɛ Diaphragm check valve lɛ etsu nii babaoo yɛ nyɛsɛɛ afii nɛɛ amli yɛ bɔ ni etsuɔ nii jogbaŋŋ ehaa ni nu nyɛŋ abote mli, bɔ ni eyɔɔ mlɛo ha, kɛ bɔ ni ekɛfee lɛ jara waaa lɛ hewɔ.
Bɔɔlu ni akɛkwɛɔ valve lɛ yɛ sɛɛfimɔ nitsumɔ kpakpa, nitsumɔ ni anyɛɔ akɛ he fɔ̃ɔ nɔ, kɛ nu hama ni hi jogbaŋŋ ni nyɛɔ eshiɔ naa ejaakɛ sɛɛfimɔ lɛ ji ŋwɛi ŋta ni akɛ rɔba ehà nɔ; ni akɛni naatsii lɛ baanyɛ afee bɔɔlu kome loo bɔɔlui babaoo hewɔ lɛ, abaanyɛ afee lɛ bɔɔlu ni da waa . Shi kɛlɛ, e-seal lɛ ji ŋwɛi ŋta ni akɛ rɔbɔt ehà nɔ, ni esaaa paipii ni mli wa waa, shi moŋ ehi kɛha paipii ni mli wa waa kɛ paipii ni mli wa waa pɛ.
Akɛni abaanyɛ akɛ dade ni sɛɛ efooo afee bɔɔlu lɛ mli nibii ni akɛkwɛɔ valve lɛ mli lɛ hewɔ lɛ, abaanyɛ akɛ PTFE engineering plastic aha ŋwɛi ŋta ni yɔɔ ŋta lɛ mli lɛ he hewɔ lɛ, abaanyɛ akɛtsu nii hu yɛ paipii ni yɔɔ nibii ni fiteɔ nii lɛ amli.
101~150°C, ≤4.0MPa, kɛ 200~1200mm teŋ.
Be ni akɛbaatsu nii: Otsokirikiri-23-2022
