
Valavu yowunikira ma double plate ndi mtundu wa valavu yamafakitale yomwe imapangidwa kuti iteteze kubwerera kwa madzi mu payipi kapena njira yoyendetsera. Mtundu uwu wa valavu umapangidwa pogwiritsa ntchito ductile iron, chinthu chodziwika ndi mphamvu yake komanso kulimba kwake. Kapangidwe ka ma double plate kamatanthauza kapangidwe ka valavu, komwe kali ndi ma plate awiri opindika kapena ma disc omwe amatseguka poyankha kuyenda kwa madzi patsogolo komanso pafupi kuti aletse kubwerera kwa madzi. Ma valavu awa amagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana, kuphatikiza kukonza madzi, kasamalidwe ka madzi otayira, kuthirira, ndi njira zamafakitale. Nthawi zambiri amayikidwa m'mapaipi kuti atsimikizire kuyenda kwa madzi kapena mpweya molunjika pomwe akuletsa kuyenda kulikonse komwe kungayambitse kuwonongeka kwa makina kapena kusagwira ntchito bwino. Chitsulo chopindika chimasankhidwa ngati chinthu cha ma valavu awa chifukwa cha mawonekedwe ake abwino kwambiri amakina komanso osagwira dzimbiri, zomwe zimapangitsa kuti chikhale choyenera kugwiritsidwa ntchito movutikira. Kapangidwe ka ma plate awiriwa kamapereka yankho laling'ono komanso lothandiza poletsa kubwerera kwa madzi, ndipo ma plate opindika amalola kuyankha mwachangu kusintha kwa madzi, kuchepetsa kutayika kwa kuthamanga kwa madzi. Ma valavu owunikira ma double plate a Ductile iron amapezeka m'makulidwe osiyanasiyana, kuwerengera kwa kuthamanga, ndi kulumikizana kumapeto kuti akwaniritse zofunikira zosiyanasiyana zogwiritsira ntchito. Kawirikawiri amapangidwa ndi kupangidwa motsatira miyezo yamakampani monga API, AWWA, ndi ISO kuti atsimikizire kuti amagwira ntchito bwino, kudalirika, komanso chitetezo. Ngati mukufuna zambiri zokhudza ma valve owunikira ma ductile iron dual plate, monga momwe zinthu zimafotokozera, malangizo oyika, kapena momwe pulogalamu yanu ikuyendera, chonde ndidziwitseni kuti ndikuthandizeni kwambiri.
1. kutalika kwa kapangidwe kake ndi kochepa, kutalika kwa kapangidwe kake ndi 1/4 mpaka 1/8 yokha ya valavu yowunikira flange yachikhalidwe
2. kukula kwake kakang'ono, kulemera kwake kopepuka, kulemera kwake ndi 1/4 mpaka 1/20 yokha ya valavu yoyesera yotseka pang'onopang'ono yachikhalidwe
3. Disk ya valavu yoyezera clamp imatsekedwa mwachangu, ndipo kuthamanga kwa nyundo yamadzi kumakhala kochepa
4. chitoliro chofufuzira chopingasa kapena choyimirira chingagwiritsidwe ntchito, chosavuta kuyika
5. Njira yoyendera valavu yoyezera clamp ndi yosalala, kukana kwa madzi ndi kochepa
6. Kuchitapo kanthu mwanzeru, kugwira ntchito bwino kosindikiza
7. Kugunda kwa diski ndi kochepa, mphamvu yotseka valavu yowunikira clamping ndi yaying'ono
8. kapangidwe kake konse, kosavuta komanso kakang'ono, mawonekedwe okongola
9. moyo wautali wautumiki, kudalirika kwambiri
Pakutsegula ndi kutseka valavu yachitsulo chopangidwa ndi chitsulo, chifukwa kukangana pakati pa diski ndi pamwamba pa valavu kumakhala kochepa kuposa kwa valavu ya chipata, sikutha kusweka.
Kutsekeka kapena kutseka kwa tsinde la valavu ndi kochepa, ndipo kuli ndi ntchito yodalirika yodulira, ndipo chifukwa kusintha kwa doko la mpando wa valavu kumafanana ndi kutsekeka kwa diski ya valavu, ndikoyenera kwambiri kusintha kuchuluka kwa madzi. Chifukwa chake, valavu yamtunduwu ndi yoyenera kwambiri kudula kapena kulamulira ndi kugwedeza.
| Chogulitsa | Valavu Yoyang'ana Iron Ductile Iron Dual Plate |
| M'mimba mwake mwa dzina | 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” |
| M'mimba mwake mwa dzina | Kalasi 900, 1500, 2500. |
| Kulumikiza Komaliza | Yopindika (RF, RTJ, FF), Yolumikizidwa. |
| Ntchito | Hammer Yolemera, Palibe |
| Zipangizo | Ductile Iron GGG50, A216 WCB, WC6, WC9, A352 LCB, A351 CF8, CF8M, CF3, CF3M, A995 4A, A995 5A, A995 6A, Alloy 20, Monel, Inconel, Hastelloy, Aluminiyamu Bronze ndi alloy ina yapadera. |
| A105, LF2, F5, F11, F22, A182 F304 (L), F316 (L), F347, F321, F51, Alloy 20, Monel, Inconel, Hastelloy | |
| Kapangidwe | Chivundikiro Cholimba, Chivundikiro Chosindikizidwa Chopanikizika |
| Kapangidwe ndi Wopanga | API 6D |
| Maso ndi Maso | ASME B16.10 |
| Kulumikiza Komaliza | ASME B16.5 (RF & RTJ) |
| ASME B16.25 (BW) | |
| Kuyesa ndi Kuyang'anira | API 598 |
| Zina | NACE MR-0175, NACE MR-0103, ISO 15848, API624 |
| Ikupezekanso pa | PT, UT, RT,MT. |
Monga katswiri wodzipangira ma valve oyeretsera zitsulo za Ductile Iron Dual Plate Check Valve komanso wotumiza kunja, tikulonjeza kupatsa makasitomala ntchito yabwino kwambiri yogulitsa pambuyo pogulitsa, kuphatikizapo izi:
1. Perekani malangizo ogwiritsira ntchito mankhwala ndi malingaliro osamalira.
2. Pa zovuta zomwe zachitika chifukwa cha mavuto a khalidwe la malonda, tikulonjeza kupereka chithandizo chaukadaulo ndi kuthetsa mavuto mkati mwa nthawi yochepa kwambiri.
3. Kupatula kuwonongeka komwe kumachitika chifukwa chogwiritsa ntchito bwino, timapereka ntchito zokonzanso ndi kusintha kwaulere.
4.Tikulonjeza kuyankha mwachangu zosowa za makasitomala panthawi ya chitsimikizo cha malonda.
5. Timapereka chithandizo chaukadaulo cha nthawi yayitali, upangiri pa intaneti ndi maphunziro. Cholinga chathu ndikupatsa makasitomala chithandizo chabwino kwambiri ndikupangitsa kuti zomwe makasitomala amakumana nazo zikhale zosangalatsa komanso zosavuta.