Dec 08, 2020 Tso lus

Valve Kev Rho Tawm

Muab ob npaug rau shutoff valve tawm valve cais tawm (DBB)

Thawj qhov kev rho tawm valve ntawm kev ua haujlwm (ntws los)

Sub-line xyuas point (manometer los yog tso pa / kis taw tes)

Qhov kev rho tawm ob lub valve ntawm kev ua haujlwm (ntws los)

Saib xyuas qhov nruab nrab ntawm lub valve thiab so taw tes (siab ntsuas cua lossis cua / tso taw tawm)

Muab cov valve ntawm kev kaw li qub

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Kev rho tawm tshuab

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Xa kev nug

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