Globe valve leh gate valve inthlauhna, engtin nge kan thlan ang?

Globe valve leh agate valve a ni.

01

Ruangam

Installation space a tlem chuan a thlan dan hi ngaihven rawh:

Chumigate valve a nisealing surface chu nghet taka khar turin medium pressure-ah a innghat thei a, chutiang chuan no leakage effect chu a thleng thei a ni. A hawn leh khar hian valve core leh valve seat sealing surface te chu an inzawm reng a, an inhnim hrual reng a, chuvangin sealing surface chu a hak awlsam a, agate valve a nia khar hnaih tawh a, pipeline hma leh hnung inkar pressure danglamna a lian hle a, hei hian sealing surface wear a ti na zual hle.

A insiam dan tur chugate valve a niglobe valve aiin a complex zawk ang a, a lan dan atang chuan caliber inang a nih chuan gate valve chu globe valve aiin a sang zawk a, globe valve chu a sei zawk bawkgate valve a ni. Hei bakah hian a...gate valve a nichu bright rod leh dark rod-ah then a ni. Shut-off valve-ah chuan a awm lo.

A hnathawh dan

Globe valve hawn leh khar a nih chuan rising stem a ni a, chu chu handwheel a inher chuan handwheel chu a rotate ang a, stem nen a lift ang. Chumigate valve a nichu valve stem-in lifting movement a tih theih nan handwheel chu rotate a ni a, handwheel awmna hmun ngei pawh a danglam lo.

Flow rates a inang lo a, withgate valve te a awm bawkfull open emaw full closing emaw a ngai a, globe valve erawh chu a ngai lo. Globe valve hian inlet leh outlet direction ruat sa a nei a, agate valve a niinlet leh outlet lam hawi tur a nei lo.

Hei bakah hian a...gate valve a nistate pahnih chauh a nei a: full open emaw fully closed emaw, gate plate hawn leh khar stroke pawh a lian hle a, hawn leh khar hun pawh a rei hle. Globe valve valve plate movement stroke hi a tlem zawk hle a, flow adjustment atan globe valve valve plate chu motion-ah hmun engemaw takah a ding thei a ni. Chumigate valve a nitruncation atan chauh hman theih a ni a, hna dang a nei lo.

Performance hrang hrang

Globe valve hi cut-off leh flow regulation atan pawh hman theih a ni. Globe valve-a fluid resistance hi a lian hle a, hawn leh khar a harsa zawk a, mahse valve plate leh sealing surface inkar hlat zawng a tawi avangin hawn leh khar stroke chu a tawi hle.

A chhan chu agate valve a nihawn leh khar kim theih chauh a ni a, a hawn kim chuan valve body channel-a medium flow resistance chu 0 vel a ni a, chuvangin hawn leh khar a nigate valve a nihnathawk tam tak a humhim dawn a, mahse gate plate chu sealing surface atanga hla tak a ni a, hawn leh khar hun pawh a rei hle.

04

Installation leh flow lam hawi

A nghawng dan chugate valve a nikawng hnih a flow direction a inang a, installation inlet leh outlet direction a ngai lo va, medium chu a sir lehlamah a luang thei bawk. Globe valve hi valve taksa arrow-in a chhinchhiahna lam hawi zawnga khauh taka dah a ngai a, globe valve luh leh chhuahna lam hawi tur ruahmanna chiang tak a awm bawk a, China valve “three transformation” angin globe valve flow direction chu a chung atanga a hnuai lam thlenga hman a ni.

Shut-off valve hi low in leh high out a ni a, pawn lam atang chuan phase khat level-a awm lo pipe chiang tak a awm bawk. Chumigate valve a niflow path chu line horizontal-ah a awm a. A stroke chu a...gate valve a nichu globe valve aiin a lian zawk a ni.

Flow resistance thlirna atang chuan a hawn kim chuan gate valve flow resistance a tlem a, load stop valve flow resistance a lian bawk. A flow resistance coefficient chu a pangngaiin a awmgate valve a nichu 0.08~0.12 vel a ni a, hawnna leh khar chakna chu a tlem a, medium chu kawng hnih a luang thei a ni. Globe valve pangngaia flow resistance hi a let 3-5 in a nigate valve te a awm bawk.Sealing neih theih nan hawn leh khar kha khar tir a ngai a, globe valve spool chu sealing surface a tawk chuan a khar vek a, chuvangin sealing surface wear chu a tlem hle a, hei hi main force flow lian tak avang hian globe valve actuator add turin torque control mechanism adjustment ngaihven tur a ni.

Globe valve dah dan kawng hnih a awm a, pakhat chu spool hnuai atanga medium a lut thei a, a thatna chu valve khar laiin packing hi pressure a awm lo a, hei hian packing service life a ti rei thei a, valve hmaa pipeline pressure a awm chuan packing chu a thlak thei bawk A chhiatna chu valve driving torque a lian a, chu chu upper flow aiin a let 1 vel a ni a, valve stem axial force a lian a, valve stem pawh a ben awlsam bawk.

Chuvangin, he method hi a tlangpuiin small-diameter globe valve (DN50 aia tlem) tan chauh a tha a, DN200 chunglam globe valve te hian chunglam atanga lo lut medium an hmang thin. (Electric globe valve-ah chuan chunglam atanga lut tur chuan medium an hmang tlangpui.) Chunglam atanga media luh dan that lohna chu a hnuai lam luh dan nen a inpersan tak zet a ni.

05

Sealing tih a ni

Globe valve sealing surface hi valve core trapezoidal side te tak te a ni (a bik takin valve core pianzia en rawh), valve core chu vawi khat a tlak chuan valve khar nen a inang (pressure danglamna a lian a nih chuan, a dik e, closure hi a strict lo a, mahse check effect chu a chhe lo), thegate valve a nichu valve core gate plate sir lamah sealed a ni a, sealing effect chu globe valve angin a tha lo va, valve core chu valve khar ang chiah globe valve angin a tla lo ang.