Yam paub

Flow Coefficient Lub ndlwg coefficient ntawm lub valve yog ib qho tseem ceeb ntawm kev ntsuas lub peev xwm ntawm lub valve. Qhov loj ntawm qhov ntws c

1) Tuam Tshoj siab-kub ntsuas tus qauv "Steel Valves - General Requirements" GB/T 12224 "Steel Pipe Flange Technical Conditions" GB/T 9124 "Power Stat

Kev ntsuas kub-kub: yog hais txog qhov siab tshaj plaws tso cai ua haujlwm siab tshaj tawm raws li ntsuas qhov ntsuas kub ntawm qhov ntsuas kub. Raws

GB/T 1048-2005 "Txhais thiab Xaiv Cov Piping Cheebtsam PN (Nominal Pressure)" yog txhais raws li hauv qab no: Nominal Pressure: Ib qho alphanumeric de

GB/T 1047-2005 "Pipeline Cheebtsam DN (Lub ntsiab lus thiab xaiv ntawm Nominal Dimensions)" yog txhais raws li hauv qab no: Qhov loj me nominal yog ib

International Standard ISO American National Standard ANSI American Petroleum Institute Standard API American Society for Testing thiab Materials ASTM

GB National standard JB Machinery Industry Standard HG Chemical Industry Standard SY Petroleum Industry Standard SH Sinopec Corporation Standard EJ Nu

Kev faib tawm raws li cov qauv txheej txheem yog tam sim no feem ntau siv kev faib tawm hauv tsev thiab txawv teb chaws. Nws yog feem ntau muab faib u

· Kev tuav lub valve: Lub valve ua haujlwm los ntawm tib neeg lub zog nrog kev pab ntawm tes log, tuav qib lossis sprocket. Thaum xav tau lub zog loj

· Flange kev twb kev txuas valve: Lub valve nrog flange ntawm lub valve lub cev thiab flange kev twb kev txuas nrog cov kav dej. · Threaded kev twb ke

· Cov khoom siv tsis yog xim hlau: Cov li qub uas nws lub cev lub cev yog ua los ntawm cov khoom siv tsis yog xim hlau, xws li cov khoom siv ceramic,

Valves raug cais raws li nominal siab thiab nominal txoj kab uas hla