
ʻO kahi valve nānā pā pālua hao ductile kahi ʻano valve ʻoihana i hoʻolālā ʻia e pale i ke kahe hope i loko o kahi pipeline a i ʻole ka ʻōnaehana hana. Kūkulu ʻia kēia ʻano valve me ka hoʻohana ʻana i ka hao ductile, kahi mea i ʻike ʻia no kona ikaika a me ke kūpaʻa. ʻO ka hoʻolālā pā pālua e pili ana i ka hoʻonohonoho ʻana o ka valve, nona nā papa hinged ʻelua a i ʻole nā disc e wehe ana i ka pane ʻana i ke kahe i mua a pani e pale i ke kahe hope. Hoʻohana pinepine ʻia kēia mau valves i nā ʻoihana like ʻole, me ka mālama ʻana i ka wai, ka hoʻokele wai ʻino, ka irrigation, a me nā kaʻina hana ʻoihana. Hoʻokomo pinepine ʻia lākou i loko o nā pipelines e hōʻoia i ke kahe unidirectional o ka wai a i ʻole ke kinoea me ka pale ʻana i kekahi kahe hoʻohuli e hiki ke alakaʻi i ka hōʻino ʻana o ka ʻōnaehana a i ʻole ka hana pono ʻole. Ua koho ʻia ka hao ductile ma ke ʻano he mea no kēia mau valves ma muli o kona mau waiwai mechanical a me ka pale ʻana i ka corrosion, e kūpono ai no nā noi koi. Hāʻawi ka hoʻolālā pā pālua i kahi hopena compact a me ka maikaʻi no ka pale ʻana i ke kahe hope, a ʻae nā papa hinged i ka pane wikiwiki i nā loli kahe, e hoʻemi ana i nā pohō kaomi. Loaʻa nā valve nānā pā pālua hao ductile i nā nui like ʻole, nā helu kaomi, a me nā pilina hopena e hoʻokipa i nā koi noi like ʻole. Hoʻolālā pinepine ʻia a hana ʻia lākou e like me nā kūlana ʻoihana e like me API, AWWA, a me ISO e hōʻoia i kā lākou hana, hilinaʻi, a me ka palekana. Inā makemake ʻoe i ka ʻike kikoʻī e pili ana i nā kiwikā nānā pā pālua hao ductile, e like me nā kikoʻī huahana kikoʻī, nā alakaʻi hoʻonohonoho, a i ʻole ka kūlike me kāu noi, e ʻoluʻolu e hoʻomaopopo iaʻu i hiki iaʻu ke kōkua hou aku iā ʻoe.
1. pōkole ka lōʻihi o ke kūkulu ʻana, ʻo kona lōʻihi o ke kūkulu ʻana he 1/4 wale nō i ka 1/8 o ka valve hōʻoia flange kuʻuna
2. liʻiliʻi ka nui, māmā ke kaumaha, ʻo kona kaumaha he 1/4 wale nō i ka 1/20 o ka kiwikā pani lohi micro kuʻuna
3. pani koke ka diski o ka valve nānā clamp, a liʻiliʻi ke kaomi hāmare wai
4. hiki ke hoʻohana ʻia ka paipu ākea a kū pololei paha no ka valve check valve, maʻalahi ke hoʻouka
5. he laumania ke ala kahe o ka valve nānā clamp, he liʻiliʻi ke kūpaʻa wai
6. hana koʻikoʻi, hana sila maikaʻi
7. pōkole ka hahau ʻana o ka disc, liʻiliʻi ka hopena o ka pani ʻana o ka valve check clamping
8. ke ʻano holoʻokoʻa, maʻalahi a paʻa, nani ke ʻano
9. ola lawelawe lōʻihi, hilinaʻi kiʻekiʻe
I ka wā o ke kaʻina hana wehe a pani ʻana o ka valve poepoe kila i hoʻoheheʻe ʻia, no ka mea, ʻoi aku ka liʻiliʻi o ka friction ma waena o ka disc a me ka ʻili sila o ke kino valve ma mua o ka valve puka, he kūpaʻa ia i ke komo ʻana.
He pōkole iki ka wehe ʻana a i ʻole ka pani ʻana o ke kumu valve, a he hana ʻoki hilinaʻi loa ia, a no ka mea ua kūlike ka loli o ka puka noho valve me ka hahau ʻana o ka disc valve, kūpono loa ia no ka hoʻoponopono ʻana i ka nui o ke kahe. No laila, kūpono loa kēia ʻano valve no ka ʻoki ʻana a i ʻole ka hoʻoponopono ʻana a me ka throttling.
| Huahana | ʻAno Wafer o ka Ductile Iron Dual Plate Check Valve |
| Anawaena inoa | NPS 1/2”, 3/4”, 1”, 1-1/4”, 1-1/2”, 2”, 3”, 4”, 6”, 8”, 10”, 12”, 14”, 16”, 18”, 20” 24”, 28”, 32”, 36”, 40”, 48” |
| Anawaena inoa | Papa 900, 1500, 2500. |
| Hoʻopau i ka pilina | Flanged (RF, RTJ, FF), Welded. |
| Hana | Hāmare Kaumaha, ʻAʻohe |
| Nā Mea Hana | Hao Ductile GGG50, A216 WCB, WC6, WC9, A352 LCB, A351 CF8, CF8M, CF3, CF3M, A995 4A, A995 5A, A995 6A, Alloy 20, Monel, Inconel, Hastelloy, Aluminum Bronze a me nā mea hoʻohui kūikawā ʻē aʻe. |
| A105, LF2, F5, F11, F22, A182 F304 (L), F316 (L), F347, F321, F51, Alloy 20, Monel, Inconel, Hastelloy | |
| ʻAno | Uhi i hoʻopaʻa ʻia, Uhi Sila Kaomi |
| Hoʻolālā a me ka Mea Hana | API 6D |
| Maka i ka maka | ASME B16.10 |
| Hoʻopau i ka pilina | ASME B16.5 (RF & RTJ) |
| ASME B16.25 (BW) | |
| Hoʻāʻo a me ka Nānā ʻana | API 598 |
| ʻĒ aʻe | NACE MR-0175, NACE MR-0103, ISO 15848, API624 |
| Loaʻa pū kekahi no kēlā me kēia | PT, UT, RT, MT. |
Ma ke ʻano he ʻoihana Ductile Iron Dual Plate Check Valve Wafer a me ka mea hoʻopuka, ke hoʻohiki nei mākou e hāʻawi i nā mea kūʻai aku me ka lawelawe ma hope o ke kūʻai aku kiʻekiʻe, me kēia mau mea:
1. Hāʻawi i ke alakaʻi no ka hoʻohana ʻana i ka huahana a me nā manaʻo mālama.
2. No nā hemahema i hoʻokumu ʻia e nā pilikia maikaʻi o ka huahana, ke hoʻohiki nei mākou e hāʻawi i ke kākoʻo loea a me ka hoʻoponopono pilikia i loko o ka manawa pōkole loa.
3. Ma waho aʻe o nā pohō i hana ʻia e ka hoʻohana maʻamau, hāʻawi mākou i nā lawelawe hoʻoponopono a me ka hoʻololi manuahi.
4. Hoʻohiki mākou e pane koke i nā pono lawelawe mea kūʻai aku i ka wā o ka palapala hoʻokō huahana.
5. Hāʻawi mākou i ke kākoʻo loea lōʻihi, nā lawelawe kūkākūkā pūnaewele a me nā lawelawe hoʻomaʻamaʻa. ʻO kā mākou pahuhopu ka hāʻawi ʻana i nā mea kūʻai aku i ka ʻike lawelawe maikaʻi loa a hoʻolilo i ka ʻike o nā mea kūʻai aku i mea ʻoluʻolu a maʻalahi hoʻi.