進口電動高溫調節閥
一、 機構組成︰調節閥通常由電動執行機構或氣動執行機構與閥體兩部分共同組成。直行程主要有直通單座式和直通雙座式兩種,後者具有流通能力大、不平衡辦小和操作穩定的特點,所以通常特別適用于大流量、高壓降和泄漏少的場合。角行程主要有︰V型電動調節球閥、電動蝶閥、通風調節閥、偏心蝶閥等。
Institutions: the regulator usually by electric actuators or pneumatic actuators and valve body two parts together. Straight travel mainly through single seater and direct two-seater type two kinds, the latter has a large flow capacity, unbalanced and the characteristics of stable operation, so often especially suitable for large flow, little pressure drop and leakage. Quarter-turn basically has: V electric regulating valves, electric butterfly valve, ventilation control valve, eccentric butterfly valve, etc.
二、進口電動高溫調節閥種類
按用途和作用、主要參數、壓力、介質工作溫度、特殊用途(即特殊、專用閥)、驅動能源、結構等方式進行了分類,其中最常用的分類法是按結構將調節閥分為九個大類,6種為直行程,3種為角行程。
三、按用途和作用分類
a.兩位閥︰主要用于關閉或接通介質;
b.調節閥︰主要用于調節系統。選閥時,需要確定調節閥的流量特性;
c.分流閥︰用于分配或混合介質;
d.切斷閥︰通常指泄漏率小于十萬分之一的閥。
A. two valve: mainly used in closed or through to medium;
B. the regulator: mainly used in control system. Choose valve, need to confirm the flow characteristic of regulating valve;
C. diverter valve: for distribution or mixed medium;
D. cut-off valve: usually refers to the leakage rate is less than one over one hundred thousand of the valve.
四、按主要參數分類
1 按壓力分類
(1)真空閥︰工作壓力低于標準大氣壓;
(2)低壓閥︰公稱壓力PN≦1.6MPa;
(3)中壓閥︰PN2.5∼6.4MPa;
(4)高壓閥︰PNl0.0∼80.0MPa,通常為PN22、PN32;
(5)超高壓閥︰PN≧IOOMPa。
2 按介質工作溫度分類
(1)高溫閥︰t>450℃;
(2)中溫閥︰220℃≦t≦450℃;
(3)常溫閥︰-40℃≦t≦220℃;々低溫閥︰-200℃≦t≦-40℃。
常用分類法
這種分類方法既按原理、作用又按結構劃分,是目前國內、國際最常用的分類方法。一般分為九個大類︰
直行程氣動調節閥
(1)單座調節閥;
(2)雙座調節閥;
(3)套筒調節閥;
(4)角形調節閥;
(5)三通調節閥;
(6)隔膜閥;
(7)蝶閥;
(8)球閥;
(9)偏心旋轉閥。前6種為直行程,後三種為角行程。
(1) the single-seat regulating valve;
(2) two-seater regulating valve;
(3) sleeve regulator;
(4) the Angle regulator;
(5) the 3-way regulating valve;
(6) the diaphragm valve,
(7) butterfly valve;
(8) ball valve;Eccentric rotary valve
(9)Before 6 kinds of straight travel, after three for the Angle of travel.
VTON(威盾)閥門國際有限公司
代理公司︰深圳名閥進出口貿易有限公司
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