Valavu ya Gulugufe Yozungulira Katatu
Thevalavu ya gulugufe yozungulira katatu— yomwe imadziwikanso kuti valavu ya gulugufe ya triple offset — ndi valavu ya gulugufe yogwira ntchito bwino kwambiri yopangidwira ntchito zoyendera pa kuthamanga kwamphamvu, kutentha kwambiri, komanso pafupipafupi. Ngakhale mavalavu a gulugufe okhala ndi rabara yozungulira amapereka kudalirika kotsimikizika komanso kotsika mtengo pa ntchito zonse, sali oyenera pamavuto akulu monga kutentha kwambiri kapena ma frequency okwera kwambiri ogwirira ntchito. Mavalavu a gulugufe wamba okhala ndi malo olimba amathetsa zina mwa zofooka izi, koma magwiridwe antchito awo otseka pansi pa mikhalidwe yovuta akhala akuvutitsa kwambiri m'mbuyomu. Vavu ya gulugufe ya triple eccentric idapangidwa makamaka kuti ithetse zofooka izi.
Mpandowu ndi wofunika kwambiri pa thupi la valavu, uli ndi ngodya zabwino zokhala ndi mipando komanso zophimba zoletsa kusweka zoyenera kugwiritsidwa ntchito mamiliyoni ambiri. Kapangidwe ka chitsulo chosapanga dzimbiri kamapereka kukana dzimbiri, ndipo zipangizo zotentha kwambiri zimapezeka kuti zikhale ndi malo otentha kwambiri. Mphete zofewa zotsekera zokhala ndi zigawo zambiri kapena mphete zotsekera zachitsulo cholimba zimamangiriridwa ku diski, zomwe zimapangitsa kuti valavuyo ikhale yolimba kwambiri ku kutentha, kupanikizika, ndi dzimbiri poyerekeza ndi mavalavu a gulugufe wamba.
Kutaya madzi kumachitika chifukwa cha mphete yotsekera yachitsulo chosapanga dzimbiri yolumikizidwa pa diski. Mawonekedwe apadera a eccentric atatu amalola kuzungulira kwa ngodya yakumanja popanda kukangana konse — kuchotsa kukhudzana konse pakati pa mpando ndi mphete yotsekera panthawi yonse ya 90°. Izi zimachepetsa kwambiri mphamvu yogwirira ntchito, zomwe zimapangitsa kuti actuator yaying'ono komanso yotsika mtengo idziwike.
Potseka, njira yotumizira imawonjezera mphamvu kuti ipereke kutseka kolimba komanso koyenera. Njirayi nthawi yomweyo imawonjezera magwiridwe antchito otsekera ndikuwonjezera moyo wa ntchito ya valavu.
- 1Chogwirira cha valavu chili kumbuyo kwa mzere wapakati pa diski, zomwe zimathandiza kuti mphete yotsekerayo izitseke kwathunthu motsutsana ndi mpando wonse wa valavu popanda kusokonezedwa.
- 2Mzere wapakati wa shaft ya valavu umachotsedwa pakati pa payipi ndi pakati pa valavu, zomwe zimapangitsa kuti pasakhale kusokonezana panthawi yotsegula ndi kutseka.
- 3Chozungulira cha mpando chimapatuka kuchoka pakati pa shaft ya valve, kuchotsa kukangana panthawi yonse ya kukwapula ndikupeza kutseka kofanana kuzungulira mpando wonse.
| Kapangidwe | API 609 / ASME B16.34 |
| Kulumikiza komaliza | Wafer / Lug / Flanged / Buttweld |
| Ntchito | Manja / Pneumatic / Magetsi |
| Kukula kwa mitundu | NPS 2″–60″ (DN50–DN1500) |
| Kuyeza kwa kupanikizika | Kalasi ya ASME 150 / 300 / 600 / 900 | PN16 / PN25 / PN40 / PN63 / PN100 |
| Muyezo wa Flange | EN 1092 / ANSI B16.5 / BS 4504 / BS 10 / AS 2129 |
| Maso ndi maso | ANSI B16.10 / EN 558-1 |
| Kutentha | −29°C mpaka 450°C (kutengera zinthu zomwe zasankhidwa) |
| Thupi | Chitsulo cha kaboni / Chitsulo chosapanga dzimbiri / Duplex SS |
| Disiki | Chitsulo cha kaboni / Chitsulo chosapanga dzimbiri / Duplex SS / Chitsulo cha aloyi |
| Tsinde | 17-4PH / Duplex SS / Chitsulo cha aloyi |
| Mpando wa thupi | 13Cr / SS304 / SS316 / Stellite yolimba |
| Mphete yosindikiza | Zokhala ndi zigawo zambiri (SS + Graphite kapena SS + PTFE) / Chitsulo-kuchokera-ku-chitsulo |
| Kulongedza | Graphite yosinthasintha |
| NACE MR0175 | Kulangizidwa ndi chopereka |










