1. Needle valve yog lub ntsuas me me-caliber valve uas ua lub luag haujlwm ntawm kev qhib thiab kaw thiab tswj cov dej ntws zoo hauv cov ntsuas ntsuas cov kav dej. Nws tsuas yog suav nrog lub hwj chim chaw nres tsheb ntsuas series, roj teb tshwj xeeb series, American standard series, thiab lwm yam.
2. Tsawg-kub nres valve feem ntau yog hais txog li qub nrog kev ua haujlwm kub hauv qab -110 degree, uas yog dav siv hauv cov roj liquefied natural gas, liquefied petroleum gas thiab lwm yam kev lag luam uas tsis kub. Txij li xyoo 2008, nres li qub nrog qhov ntsuas kub ntawm -196 degree tuaj yeem tsim tau. Tag nrho cov khoom yog pre-kho nrog kua nitrogen rau qhov kub thiab txias kom tsis txhob foob deformation thiab to thaum siv.
3. Plunger valve, tseem hu ua plunger nres valve, txais yuav radial sealing qauv rau nws sealing nto. Ob lub nplhaib sib khi ntawm lub plunger polished yog siv rau lub valve npog los ntawm kev sib txuas ntawm lub cev lub cev thiab lub valve npog kom nias lub nplhaib elastic sealing ncig lub plunger kom ua tiav sealing. Nres valve.
4. Rwb thaiv tsev lub tsho nres valve txais lub tsho rwb thaiv tsev tsim, thiab siv cov khoom siv hluav taws xob sab nraud kom sov rau sab nraud ntawm lub valve hauv kev ncig, uas tuaj yeem tiv thaiv qhov kub thiab txias thaum qhov nruab nrab dhau los ntawm lub valve thiab xyuas kom meej qhov kub ntawm qhov nruab nrab.
5. Lub forged steel nres valve yog tsim thiab tsim raws li API 602 tus qauv, thiab peb lub valve npog tsim cov ntaub ntawv tau muab: bolted valve cover, welded valve cover, thiab siab self-tightening valve cover. Cov neeg siv tuaj yeem xaiv cov ntawv sib txawv raws li lawv xav tau. Peb txoj kev sib txuas tau muab: RF flange, NPT xov, thiab SW vuam.