Njengoko igama lisitsho, ivalve yebhola edadayo isebenzisa ibhola njengolwakhiwo lokuvala indawo enqamlezileyo yombhobho nokumisa ukuphuma kwamanzi. Olona phawu luphambili lwevalvu yebhola edadayo kukuba ngenxa yokuba ibhola ingenandlela yokuyibamba, idada kulwelo kwaye ibekwe kwindawo yayo zizitulo zevalvu. Ibhola yevalve yebhola edadayo ayithintelwanga nakweyiphi na enye indawo, ngoko ke xa ivalve ivaliwe kwaye isiphakathi sicinezelwe kwelinye icala levalve (phezulu), ibhola inokuvelisa ukufuduswa okuthile kwaye icinezele ngokuqinileyo kumphezulu wokutywina we-outlet. ekupheleni (ezantsi) kwevalve, ukudala itywina lokuphuma. Ngenxa yokuba zininzi iintlobo ezahlukeneyo zeevalvu ezikhoyo, kubalulekile ukuqonda ukwahluka kwazo ukuze ukhethe eyona ifanele isicelo esikhoyo. Iivalve zebhola ezidadayo luhlobo lwevalve yebhola apho inkqubo yokuvala inqunyanyiswa. Ngenxa yoko, banoyilo olulula kakhulu kunye nokusebenza kwaye banokusetyenziselwa izicelo apho isantya sokuvula okanye ukuvala ukuhamba, ukukhululeka ekutshintsheni ulwalathiso lokuhamba, okanye ukulula kokufakela kubalulekile. Olunye uyilo kufuneka luthathelwe ingqalelo ukuba kukho iimfuno ezinzima ngakumbi ezikhoyo, ezinjengokuqina okuphezulu kokusingqongileyo, amaqondo obushushu aphezulu, kunye noxinzelelo oluphezulu. Qwalasela uhlobo lokutywinwa njengenye into ebalulekileyo ephembelela isigqibo kwezo meko, kwaye mhlawumbi usebenzise uyilo olunamacandelo amabini okanye amathathu. Inkqubo yokukhetha akufuneki inike imingeni engundoqo ukuba ezi ngcebiso zikhankanywe ngasentla ziyalandelwa. Ukuphepha ukuthengwa kwakhona okanye inkcitho eyongezelelweyo enxulumene nokutshintshwa kweevalvu ezingazange zihlangabezane neemfuno zesicelo, kuyacetyiswa ukuba udibane nevalve ye-NTGD, umvelisi ohloniphekileyo weevalvu zebhola ezidadayo, nanini na xa uthandabuza.
1.Basic Design API 6D & API 608 & ANSI/ASME B 16.34
2.Shell Wall Ukutyeba API 6D
3.Face to Face Dimension ANSI/ASME B16.10
4.Flange End Dimension ANSI/ASME B16.5
5.I-Butt-Weld End Dimension ANSI/ASME B16.25
6.Inspection & Testing API 6D
1.Ubukhulu: 1/2 "ukuya kwi-10" DN15 ukuya kwi-DN250
I-2.Uxinzelelo: Iklasi ye-150lb ukuya kwi-300lb
3.Izinto eziphathekayo: Insimbi yeCarbon, insimbi engenasici kunye nezinye izinto ezikhethekileyo.NACE MR 0175 anti-sulfur kunye ne-anti-corrosion metal materials.
4.Ubushushu: -46℃-200℃
Iivalvu ze-JLPV zinokuxhotyiswa ngesixhobo somqhubi wegiya, ii-actuator zepneumatic, ii-actuator ze-Hydraulic, ii-actuator zoMbane, ii-bypasses, izixhobo zokutshixa, ama-chainwheels, izikhondo ezandisiweyo kunye nezinye ezininzi ziyafumaneka ukuhlangabezana neemfuno zabathengi.
