JETS杰馳 034512801 肘部橡膠 ?50*60mm
止回閥是指啟閉件為圓形閥瓣并靠自身重量及介質(zhì)壓力產(chǎn)生動(dòng)作來阻斷介質(zhì)倒流的一種閥門。屬自動(dòng)閥類，又稱逆止閥、單向閥、回流閥或隔離閥。閥瓣運(yùn)動(dòng)方式分為升降式和旋啟式。升降式止回閥與截止閥結(jié)構(gòu)類似，僅缺少帶動(dòng)閥瓣的閥桿。介質(zhì)從進(jìn)口端（旋啟式止回閥有一個(gè)斜置并能繞軸旋轉(zhuǎn)的閥瓣，工作原理與升降式止回閥相似。止回閥常用作抽水裝置的底閥，可以阻止水的回流。止回閥與截止閥組合使用，可起到安全隔離的作用。缺點(diǎn)是阻力大，關(guān)閉時(shí)密封性差
工作原理
Socked head screw 5451390
Locking screw 5451400
Hex. Bolt 5451380
Shaft adapter 5451300
Mechanical sea 5451310
Retaining ring 5431012
Locking screw 5451320
stud 5451370
Lock nut 5451410
key 5451340
plug 5451360
bush 5430851
washer 5430848
nut 5450694
Vacuum gauge R 1/2" 5437623
Three-way valve R 3/9" 5437587
Vacuum switch R 3/8" 5437598
Three-way valve R 1/2" 5437666
Control mechanisr 5775500
Pneumatic push button 5860303
Straight connection 5433572
Optional connection, rubber elbow 90 5433583
5775500 CONTROL MECHANISM
6545052 MINI-CHECK VALVE KIT
6547089 CLOSING MECHANISM
6543134 MEMBRANE
6542997 WATER VALVE
5430612 LEVEL SWITCH
6541458 PNEUMATIC PUSH BUTTON,WHITE
6544996 PNEUMATIC PUSH BUTTON,WHITE
6541922 SEAT AND COVER,SILENT
5736326 HOSE L=270
5481004 HOSE L=390
JETS 15MB-D
38201500 SHAFT SEAL
37219230 O RING 145.9*3
37219220 O RING 139.5*3.52
37219200 O RING 159.5*3
37219210 O RING 154.5*3
37219250 O RING 52*3.5
29151800 DISTANCE SLEEVE
29150700 ROTOR
29151010 FLAP VALVE COMPLETE
34307100 COMPENSATOR
29150400 ROTATING KNIFE
29150500 STATIORYKNIFE
29150600 END FLANGE
5490548 ANTI FRICTION BEARING, DRIVE SIDE
5490566 ANTI FRICTION BEARING, NON DRIVE SIDE
5490580 MECHANICAL SEAL
5490590 GASKET
5450072 IMPELLER
5490587 IMPELLER NUT
5490586 BUSH
JETS 64 FD-VPC & JETS 50 FD-VPC
JETS杰馳 034512801 肘部橡膠 ?50*60mm
安裝方法
二、升降式止回閥：閥瓣沿著閥體垂直中心線滑動(dòng)的止回閥，升降式止回閥只能安裝在水平管道上，在高壓小口徑止回閥上閥瓣可采用圓球。升降式止回閥的閥體形狀與截止閥一樣（可與截止閥通用），因此它的流體阻力系數(shù)較大。其結(jié)構(gòu)與截止閥相似，閥體和閥瓣與截止閥相同。閥瓣上部和閥蓋下部加工有導(dǎo)向套簡，閥瓣導(dǎo)向簡可在閥盞導(dǎo)向簡內(nèi)自由升降，當(dāng)介質(zhì)順流時(shí)，閥瓣靠介質(zhì)推力開啟，當(dāng)介質(zhì)停流時(shí)，閥瓣靠自垂降落在閥座上，起阻止介質(zhì)逆流作用。直通式升降止回閥介質(zhì)進(jìn)出口通道方向與閥座通道方向垂直；立式升降式止回閥，其介質(zhì)進(jìn)出口通道方向與閥座通道方向相同，其流動(dòng)阻力較直通式小。
101100000 VPC CONTROLLER COMPLETE
100100000 RELEASE BUTTON COMPLETE
34536900 NON RETURN VALVE
101101800 START VALVE COMPLETE
50500800 LIFTING MEMBRANE
34507310 VACUUM BREAKER
34512901 MUFF STRAIGHT REDUCTION ?48*?57*100mm
34512801 ELBOW RUBBER REDUCTION ?50*60mm
29150701 ROTOR 2
37219250 O-RING
37219220 O-RING
29150400 ROTATING KNIFE
29150500 STATIONARY KNIFE
37219200 O-RING
29151800 SPACER SLEEVE
