Muaj ntau txoj hauv kev los txuas seamless steel kav. Nov yog qee txoj hauv kev uas feem ntau siv:
1. Compression type 2. Union type 3. Pressure type 4. Push type 5. Taper thread type 6. Socket welding type 7. Union type flange connection 8. Welding type and derivatives that combine welding with traditional connections Series kev sib txuas txoj kev
Cov kev sib txuas sib txawv muaj cov ntawv thov sib txawv vim lawv cov qauv tsim khoom sib txawv, tab sis feem ntau hais lus, lawv txhua tus muaj ib yam: lawv yooj yim rau nruab, muaj zog thiab txhim khu kev qha.
Hluav taws kub-tawm seamless steel kav yuav tsum tau flange kev twb kev txuas los yog groove kev twb kev txuas raws li specifications. 8.2.5 Rau cov kav dej faus, thaum lub zog ua haujlwm siab tsis siab tshaj 1.20MPa, cov kav dej hlau lossis cov hlau mesh thav duab cov kav dej yuav tsum tau siv rau cov kav dej; Thaum lub zog ua haujlwm siab tshaj 1.20MPa thiab tsawg dua 1.60MPa, steel mesh thav duab yas puas yuav tsum tau siv cov kav dej, cov kav dej tuab thiab cov kav dej seamless; Thaum lub kaw lus ua haujlwm siab tshaj 1.60MPa, seamless steel kav yuav tsum tau siv. Kev sib txuas ntawm cov yeeb nkab steel yuav tsum siv grooved connectors (clamps) thiab flanges. Thaum cov grooved connectors siv rau kev sib txuas, kev ua haujlwm siab ntawm cov yeeb nkab sib koom ua ke nrog lub nominal txoj kab uas hla tsawg dua los yog sib npaug rau DN250 yuav tsum tsis txhob siab tshaj 2.50MPa, thiab lub nominal txoj kab uas hla ntau dua los yog sib npaug rau DN300. Kev ua haujlwm siab ntawm cov yeeb nkab sib txuas yuav tsum tsis txhob siab tshaj 1.60MPa.
