3. Ball Valve hmanga siam a ni
Ball valve hi plug valve atanga lo piang chhuak a ni. A hawn leh khar lai chu sphere a ni a, chu sphere chu valve stem axis vel chu 90°in a inher a, chu chuan hawn leh khar tumna chu a tihlawhtling thei a ni. Ball valve hi pipeline-ah hman a ni ber a, chu chu medium cut off, distribute leh flow direction thlak danglam nan a ni. V-shaped opening neia design ball valve pawh hian flow regulation function tha tak a nei bawk.
TWS valve factory chuan a ṭhut theihna tur wafer butterfly valve YD37A1X3-16Q, Double flanged concentric butterfly valve a pe aD34B1X3-16Q a ni, Ser.13 emaw series 14 emaw angin double flanged eccentric butterfly valve, BS5163/F4/F5 /ANSI CL150 rubber seated gate valve, Y-strainer, balancing valve, back flow preventer te a ni.
3.1 A thatna: 1.1.
1 Flow resistance hniam ber (practically 0) a nei.
2 A hnathawh laiin (lubricant a awm loh chuan) a tlakbuak dawn loh avangin corrosive media leh low-boiling-point liquid-ah rintlak takin hman theih a ni.
3 Pressure leh temperature range lian tak chhungah sealing kimchang tak a nei thei.
4 Hmanhmawh taka hawn leh khar theihna a nei thei. Structure thenkhat hawn leh khar hun chhung hi second 0.05 atanga 0.1 chauh a ni a, hei hian test bench-a automated system-a hman theih a nih thu a tichiang a ni. Valve hawn leh khar vat chuan hnathawh laiin nghawng a nei lo.
5 Spherical closing part chu boundary position-ah automatic in a awm thei.
6-- Working medium chu rintlak takin valve-ah sealed a ni.
Q7 Valve chu a inhawng kim a, a khar kim vek chuan sphere leh valve seat sealing surface te chu medium atang hian a inthen darh thin. Chuvangin, valve chhunga medium speed sang taka luang chuan sealing surface te chu a ti erosion dawn lo.
8 A structure compact tak a ni a, a rit lo hle bawk. Low-temperature medium system tan chuan valve structure dik ber anga ngaih theih a ni.
8 Avalve a nitaksa chu a symmetrical a ni. A bik takin welded valve body structure atan chuan pipeline atanga stress lo chhuak chu a tuar thei hle.
10 Closing part hian closing laiin pressure sang tak danglamna chu a tuar thei a ni.
6 Valve taksa pum pui welded nei ball valve chu lei hnuaiah direct-a phum theih a ni a, chu chuan valve chhunga thil awmte chu a chhe thei lo turin a veng thei a ni. A service life sang ber chu kum 30 chhung a ni thei a, hei vang hian oil leh natural gas pipeline siamna atana valve tha ber a ni.
3.2 A that lohna: 1.1.
1 A bulpui bervalve a niball valve-a seat sealing ring material chu polytetrafluoroethylene (PTFE) a ni. Chemical substance zawng zawng deuhthaw ah inert a ni a, friction coefficient tlem, stable performance, tar chak lohna, temperature range hman theih zau tak, leh sealing performance tha tak te ang chi characteristic kimchang tak a nei bawk. Mahse, PTFE physical property, expansion coefficient sang tak, cold flow laka sensitivity, leh thermal conductivity tha lo te te hian heng property te hi valve seat seal design hi tih a ngai a ni. Chuvangin, sealing material a khauh chuan seal rintlakna a tichhe thin. Chubakah, PTFE temperature resistance grade hi a hniam hle a, 180°C hnuai lam temperature-ah chauh hman theih a ni. He value hi temperature a pelh chuan sealing material chu a upa tawh ang. Hun rei tak hman dan ngaihtuah chuan a tlangpuiin 120°C-ah chauh hman a ni.
2 A regulation performance hi globe valve aiin a chhe deuh hlek a, a bik takin pneumatic valve (or electric valve) tan chuan.
5. Plug Valve a ni
Plug valve tih hian rotary valve a kawk a, a khar lai chu plunger angin a awm a ni. 90° a inher hian plug-a passage opening chu valve body-a passage opening nen inbiak emaw, inthen emaw turin siam a ni a, chu chuan valve hawn emaw khar emaw chu a tihlawhtling thei a ni. Cock, stopcock emaw rotary gate emaw an ti bawk. Plug pianzia hi cylindrical emaw conical emaw pawh a ni thei. A chi hrang hrang a awm a, straight-through type, three-way type, leh four-way type te pawh a awm. A principle chu a bul berah chuan ball valve nen a inang hle.
5.1 A thatna: 1.1.
1 Hman fo nan a tha a, hawn leh khar awlsam leh rang tak a ni.
2 Fluid resistance hi a tlem hle.
3 A structure a awlsam a, volume a tlem hle a, a rit lo hle a, enkawl pawh a awlsam hle.
4 Sealing performance tha tak a nei.
5 Installation lam hawia tihkhawtlai loh, medium flow lam hawi chu duh duhin a awm thei.
6 Vibration a awm lo va, thawm pawh a hniam hle.
5.2 A that lohna: 1.1.
7 Sealing surface a lian lutuk a, chu chuan torque a tam lutuk a, flexibility a nei tlem hle.
8 A rit zawngin a nghawng a, a valve diameter lian zawng hi a tlem hle.
A hman tak takah chuan valve lian tak mamawh a nih chuan reverse plug structure hman a ngai a, chu chuan sealing effect a nghawng thei a ni.
A chipchiar zawk, zalen takin biak theih a niTWS valve a nithil siamna hmunpui.
Post hun chhung: Apr-12-2025
