Butt vuam flange ua tau raws li qhov yuav tsum tau muaj ntawm Ⅲ thiab forgings
Tso lus
Butt vuam flange ua tau raws li qhov yuav tsum tau muaj ntawm Ⅲ thiab forgings
(1) Forgings rau flanges nrog nominal siab PN Ntau dua los yog sib npaug rau 10.0MPa;
(2) Chrome-molybdenum steel forgings with nominal pressure PN>4. 0MPa;
(3) Ferritic steel forgings with nominal pressure PN>1.6MPa thiab ua haujlwm kub tsawg dua lossis sib npaug rau -20 degree .
Txoj kab nqes sab nraud ntawm lub caj dab ntawm lub pob tw-welded flange yuav tsum tsis txhob siab tshaj 70 degree. Vuam flanges nruj me ntsis tswj cov txheej txheem tsis zoo thaum lub sij hawm tsim khoom thiab vuam kom ntseeg tau tias lawv tuaj yeem muab kev ua si tag nrho rau lawv lub luag haujlwm thiab tus nqi hauv kev tsim khoom thiab siv.
Butt vuam flange ua tau raws li cov txheej txheem yuav tsum tau ua
Butt welded flanges yuav tsum tau kuaj ultrasonically, tsis muaj delamination defects;
2. Nws yuav tsum tau txiav mus rau hauv ib daim hlab raws lub dov kev taw qhia ntawm cov hlau, ces yuav tsum tau khoov thiab pob tw welded rau hauv ib lub nplhaib, thiab cov hlau nto yuav tsum tsim ib tug cylindrical nto ntawm lub nplhaib. Cov hlau phaj yuav tsum tsis txhob ncaj qha mus rau hauv lub taub qab-welded flange nrog caj dab;
3. Lub pob tw weld ntawm lub nplhaib ncig yuav tsum tau txais kev nkag mus rau tag nrho;
4. Lub taub qab vuam ntawm lub nplhaib yuav tsum raug kho tom qab vuam thaum tshav kub kub thiab 100 feem pua ntawm kev kuaj hluav taws xob lossis ultrasonic, thiab kev tshuaj xyuas hluav taws xob ua tau raws li qhov yuav tsum tau ua ntawm JB4730 qib II, thiab kev tshuaj xyuas ultrasonic ua tau raws li JB4730 qib I.
Qib ntawm lub taub qab vuam flange thiab nws cov kev cai yuav tsum ua kom tau raws li qhov xav tau ntawm JB4726-4728.
1. Forgings ntawm carbon steel thiab austenitic stainless hlau nrog lub nominal siab ntawm PN ntawm 0.25MP-1.0MPa raug tso cai siv Qib I forgings.
2. Ntxiv rau cov kev cai nram qab no, forgings nrog lub nominal siab PN ntawm 1.6MPa-6.3MPa yuav tsum tau raws li qhov yuav tsum tau ntawm forgings ntawm Class II los yog siab dua.
1 Bolt qhov nruab nrab lub voj voog txoj kab uas hla: 50mm----2130mm
2 Bolt qhov taub: 11mm-30mm
3 Flange thickness: 12 hli -58 hli
4 Tube sab nraud txoj kab uas hla: A(17.2-2032MM) B(14-2020MM)
5 Flange puab txoj kab uas hla: A (18-2036MM) B (15-2024MM)
6 Theoretical luj ntawm flange: 0.36kg--234.6kg (DN1800)
www.superbheater.com
