I-valve yesango le-OS&Y elihlala njalo le-AZ Series
Incazelo:
I-valve yesango le-NRS elihlala liqinile le-AZ Seriesiyivalvu yesango le-wedge kanye nohlobo lwe-Rising stem (Outside Screw and Yoke), futhi ifanele ukusetshenziswa ngamanzi kanye noketshezi olungathathi hlangothi (indle). Ivalvu yesango le-OS&Y (Outside Screw and Yoke) isetshenziswa kakhulu ezinhlelweni zokufafaza umlilo. Umehluko omkhulu kusuka kuvalvu yesango le-NRS (Non Rising Stem) ejwayelekile ukuthi isiqu kanye ne-stem nut zibekwe ngaphandle komzimba wevalvu. Lokhu kwenza kube lula ukubona ukuthi ivalvu ivuliwe noma ivaliwe, njengoba cishe ubude bonke besiqu bubonakala lapho ivalvu ivuliwe, kanti isiqu asisabonakali lapho ivalvu ivaliwe. Ngokuvamile lokhu kuyimfuneko kulezi zinhlobo zezinhlelo ukuqinisekisa ukulawulwa okusheshayo kwesimo sesistimu.
Izici:
Umzimba: Akukho ukwakheka komsele, vimbela ukungcola, qinisekisa ukuvalwa okusebenzayo. Ngokumbozwa kwe-epoxy ngaphakathi, kuhambisana nesidingo samanzi aphuzwayo.
Idiski: Uhlaka lwensimbi olunerabha efakwe ngaphakathi, luqinisekisa ukuvalwa kwevalvu futhi luhambisana nezidingo zamanzi aphuzwayo.
Isiqu: Senziwe ngezinto ezinamandla aphezulu, siqinisekisa ukuthi i-valve yesango ilawulwa kalula.
I-Stem nut: Ingxenye yokuxhuma ye-stem ne-disc, iqinisekisa ukuthi i-disc isebenza kalula.
Ubukhulu:
| Usayizi mm (intshi) | D1 | D2 | D0 | H | H1 | L | b | N-Φd | Isisindo (kg) |
| 65(2.5") | 139.7(5.5) | 178(7) | 182(7.17) | 126(4.96) | 190.5(7.5) | 190.5(7.5) | 17.53(0.69) | 4-19(0.75) | 25 |
| 80(3") | 152.4(6_) | 190.5(7.5) | 250(9.84) | 130(5.12) | 203(8) | 203.2(8) | 19.05(0.75) | 4-19(0.75) | 31 |
| 100(4") | 190.5(7.5) | 228.6(9) | 250(9.84) | 157(6.18) | 228.6(9) | 228.6(9) | 23.88(0.94) | 8-19(0.75) | 48 |
| 150(6") | 241.3(9.5) | 279.4(11) | 302(11.89) | 225(8.86) | 266.7(10.5) | 266.7(10.5) | 25.4(1) | 8-22(0.88) | 72 |
| 200(8") | 298.5(11.75) | 342.9(13.5) | 345(13.58) | 285(11.22) | 292(11.5) | 292.1(11.5) | 28.45(1.12) | 8-22(0.88) | 132 |
| 250(10") | 362(14.252) | 406.4(16) | 408(16.06) | 324(12.760) | 330.2(13) | 330.2(13) | 30.23(1.19) | 12-25.4(1) | 210 |
| 300(12") | 431.8(17) | 482.6(19) | 483(19.02) | 383(15.08) | 355.6(14) | 355.6(14) | 31.75(1.25) | 12-25.4(1) | 315 |
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