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概述

  ZMAP-W、ZMAN-W型氣動薄膜波紋管調節(jié)閥由氣動薄膜執(zhí)行機構和波紋管密封的單雙座閥兩部分組成。其闊芯部件采用波紋管密封結構，上閥蓋頂端仍有填料密封，形成兩道密封， 可嚴格防止介質向外泄漏，因此適用于調節(jié)劇毒、 貴重、易揮發(fā)或易滲透的工藝介質。

1、主要技術參數

公稱通徑DN(mm)          25                  32                  40                  50                  65                  80                  100

閥座直徑DN(mm)          26，24            32，30            40，38            50，48            66，64            80，78            100，98

額定流量系數Kv             10                  16                  25                  40                  63                  100                 160

流量特性                        直線；等百分比

公稱壓力PN(MPa)          1.0，1.6，4.0

連接型式                        法蘭連接：按JB79標準

配用執(zhí)行機構型號            ZMA-2                                  ZMA-3                                  ZMA-4

有效面積Fe(cm2)           280                                      400                                      630

行程L(mm)                   16                                        25                                        40

作用方式                        氣關式；氣開式

彈簧壓力范圍（KPa)        標準20-100，可選用4-200、20-60,60-100

供氣壓力（MPa)             標準0.14可選用0.24

氣源接頭                        M16X1.5

固有可調比K                  30：1

 2、主要技術性能指標

項目                                                         不帶閥門定位器                                          帶閥門定位器

基本誤差%                                                ≤±5                                                        ≤±1

回差%                                                      ≤3                                                          ≤1

死區(qū)%                                                      ≤3                                                          ≤0.4

泄漏量                                                      0.01%X閥額定容量

額定流量系數誤差%                                    ≤±10

 3、閥體材料和適用溫度范圍

閥體材料      材料牌號                                                                   公稱壓力（MPa)                                   適用溫度范圍（℃）

鑄 鋼          ZG230-450                                                               1.0,1.6,4.0                                          -40～150

鑄不銹鋼      ZGlCrl8Ni9Ti
ZG0Cr18Ni12Mo2Ti                                                                                                                             -60～50

4、允許壓差

標準組配的氣動薄膜波紋管密封雙座調節(jié)閥建議工作壓差不超過IMPa。為確保調節(jié)精度，必須配 以閥門定位器。

 5、外形尺寸

公稱通徑 DN(mm)                           A                                                    L                                                    H     H1

                                                      PN1.0,1.6             PN2.5,4.0             氣關式                  氣開式                 

25                       φ280                   185                      190                      583                      636                      104

32                                                  200                      210                      585                      638                      107

40                       φ325                   220                      230                      716                      795                      126

50                                                  250                      255                      721                      800                      131

65                       φ410                   275                      285                      1064                    1165                    175

80                                                  300                      310                      1081                    1182                    190

100                                                 350                      355                      1093                    1194                    202