1. Valve hom:
Z rooj vag valve, J ntiaj teb valve, L throttle valve, Q pob valve, D npauj npaim valve, G diaphragm valve, X ntsaws valve, H kos valve, A kev nyab xeeb valve, Y siab txo valve, S chav ntxiab
2. Valve kev twb kev txuas code:
1- poj niam xov, 2- txiv neej xov, 4- flange, 6- vuam, 7-wafer
3. Valve kis txoj kev:
9-electric, 6-pneumatic, 3-turbine
4. Valve lub cev khoom:
Z grey cam khwb cia hlau, K malleable cam khwb cia hlau, Q ductile hlau, T tooj liab thiab alloy, C carbon hlau, P 304 stainless hlau, R 316 stainless hlau, V chrome-molybdenum-vanadium hlau
5. Valve rooj foob:
R316 stainless hlau, T tooj liab alloy, X roj hmab, S yas, N nylon yas, F PTFE hauv ob sab phlu, H alloy steel, Y nyuaj alloy, J roj hmab hauv ob sab phlu, M monel alloy, W valve lub cev khoom
6. Cam khwb cia hlau valve lub cev tsis haum rau lub sijhawm hauv qab no:
1) Dej vapor lossis roj ntub dej nrog cov ntsiab lus dej siab;
2) Flammable thiab explosive kua;
3) ambient kub hauv qab no -20 degree;
4) Compressed roj
