Valve Basic a ni

A valve a nichu fluid line atana control device a ni. A hna bulpui ber chu pipeline ring circulation connect emaw cut off emaw, medium flow direction thlak danglam te, medium pressure leh flow siamthat te, pipeline leh hmanrua te hnathawh dan pangngai humhim te a ni.

一.Valve hrang hrangte thliar hranna

A hman dan leh a hnathawh dan azirin hetiang hian then theih a ni:

1. Shut-off valve: pipeline medium chu cut emaw, connect emaw rawh. Chutiang chu: gate valve, globe valve, ball valve, butterfly valve, diaphragm valve, plug valve te hi a ni.

2. Valve enfiah rawh: pipeline chhunga medium chu hnunglam hawia luang lo turin ven.

3. Distribution valve: medium flow direction thlak danglam, distribute, separate emaw mix emaw. Distribution valve, steam trap, leh three-way ball valve te ang chi te.

4. Regulating valve: medium pressure leh flow siamthat. Pressure tihtlemtu valve, regulating valve, throttle valve te ang chi te hi a ni.

5. Safety valve: device chhunga medium pressure chu a value tarlan aia tam lo turin ven la, overpressure safety protection pe bawk ang che.

二 tih a ni. Basic parameters te chu avalve a ni

1. Valve (DN) a diameter hming (nominal diameter) a ni.

2. Valve (PN) atanga a pressure nominal (nominal pressure) a ni.

3. Valve pressure leh temperature rating: Valve hnathawhna temperature chuan nominal pressure reference temperature a pelh chuan a hnathawhna pressure sang ber chu chutiang chuan tihhniam a ngai a ni.

4. Valve pressure unit thlak danglam dan:

5. A hman theih medium chuvalve a ni:

Industrial valve hi petroleum, chemical industry, metallurgy, electric power, nuclear energy leh industry dang dangah te hman a ni. Media kal tlangte chu gas (air, steam, ammonia, coal gas, petroleum gas, natural gas, etc.); tui (tui, ammonia tui, hriak, acid, alkali, etc.) te. Ṭhenkhat chu machine gun ang maia chhe thei an ni a, ṭhenkhat chu radioactive nasa tak an ni.