1. Ka diski o kakiwi kīpē lāʻauhe ʻano diski a kaʻapuni a puni ka lāʻau kaʻapuni o ke kahawai noho valve. No ka mea, ua hoʻopololei ʻia ke kahawai i loko o ka valve, ʻoi aku ka liʻiliʻi o ke kahe o ke kahe ma mua o ke ʻano o ke ʻano o ka lele lele. Hoʻokaʻawale ʻia ka valve check Butterfly i hoʻokahi disc type, double disc type a me ka hapalua ʻano ʻekolu, ua māhele nui ʻia kēia mau ʻano ʻekolu e like me ke anawaena o ka valve, ʻo ke kumu ke pale ʻana i ke kahe mai ke kahe ʻana a i ʻole ka hoʻihoʻi ʻana, hoʻonāwaliwali i ka hopena hydraulic.
2, Rubber lined check valve: valve disc sliding along the vertical center line of the valve body check valve, hiki ke hoʻokomo wale i ka leo hoʻopaʻa pahu ma ka paipu ākea, i ke kaomi kiʻekiʻe liʻiliʻi liʻiliʻi nānā pahu pahu hiki ke hoʻohana i ka pōʻai. ʻO ke ʻano kino o ka pahu hoʻopaʻa hoʻoheheʻe ʻana ua like ia me ke ʻano o ka valve honua (hiki ke hoʻohālikelike ʻia me ka valve honua), no laila ʻoi aku ka nui o kona koena kūʻai wai. Ua like kona ʻano me ka valve honua, a ua like ke kino a me ka disc me ka valve honua. ʻO ka ʻaoʻao o luna o ka diski a me ka ʻaoʻao haʻahaʻa o ka uhi valve e hana ʻia me kahi lima alakaʻi, a hiki ke hāpai ʻia ke alakaʻi diski a hoʻohaʻahaʻa wale ʻia i loko o ke alakaʻi pahu pahu. I ka wā e kahe ana ka mea waena, wehe ʻia ka diski e ka ʻauwae waena, a i ka wā e pau ai ke kahe ʻana, pae ka disc valve ma ka noho ma ka ʻaoʻao kū i luna e pale ai i ka mea waena mai ka countercurrent. ʻO ke ala pololei o ke kahawai lele a me ka ʻaoʻao ʻaoʻao o ke ala noho kū pololei; ʻO ke ala hoʻokiʻekiʻe kiʻekiʻe kiʻekiʻe, ʻo ka ʻaoʻao waena a me ka ʻaoʻao puka puka a me ka ʻaoʻao o ke ala noho he like ia, ʻoi aku ka liʻiliʻi o ke kahe ʻana ma mua o ka pololei.
3. Kiwikā hoʻopaʻa ʻia i ka pahu: e paheʻe ka pahu pahu ma ka laina waena o ke kino valve.Kiwikā ʻano paipuʻO ka valve hou, kona liʻiliʻi liʻiliʻi, ke kaumaha māmā, ka ʻenehana hana maikaʻi, ʻo ia kekahi o ka hoʻomohala ʻana o ka valve check. Akā ʻoi aku ka ʻoi aku o ka nui o ka hoʻoheheʻe wai ma mua o nā kiwi hoʻokele koʻi.
Nā Huahana
| Ka inoa o nā ʻāpana | Kino valve | Disc | Kola hoʻopaʻa sila | Lever kiwi | Hoʻopili |
| Mea waiwai | hao hoolei | hao hoʻoheheʻe | ʻO Ding nitrile oil resistant rubber chloroprene rubber | Kila kohu ʻole | Teflon |
ʻikepili ʻenehana
| PN(MPa) Pumi inoa | 1.0 | 1.6 | 2.5 | |
| Ps(MPa) Pumi ho'āʻo | ʻO ka pūpū | 1.5 | 2.4 | 3.75 |
| Sila | 1.1 | 1.76 | 2.75 | |
| (MPa) Pumi hana | 1.6 | 2.5 | ||
| (°C) Keʻano wela wela | 0~80 | |||
| ʻAno kūpono | ʻO ka wai, ka ʻaila, ka wai kai, ka ʻōpala | |||
Anana
| DN(MM) | L | ʻO D | D1 | dn | n |
| 50 | 203 | 165 | 125 | 17.5 | 4 |
| 65 | 216 | 185 | 145 | 17.5 | 4 |
| 80 | 241 | 200 | 160 | 17.5 | 8 |
| 100 | 292 | 220 | 180 | 17.5 | 8 |
| 150 | 356 | 285 | 240 | 22 | 8 |
| 200 | 495 | 340 | 295 | 22 | 8 |
| 250 | 622 | 395 | 350 | 22 | 12 |
| 300 | 698 | 445 | 400 | 22 | 12 |
| 350 | 787 | 505 | 460 | 22 | 16 |
| 400 | 914 | 565 | 515 | 22 | 16 |
| 450 | 978 | 615 | 565 | 26 | 20 |
| 500 | 978 | 670 | 620 | 26 | 20 |
| 600 | 1295 | 780 | 725 | 30 | 20 |
Nā kikoʻī o nā huahana
Palapala
Kaʻina hana
Mea lako
Palapala noi

















