ZJHP气动单座调节阀、蒸汽气动法兰单座调节阀性能
流量特性 | 直线、等百分比、快开 |
可调范围 | 50:1 (CV<6.3 30:1) |
额定CV值 | 等百分比CV1.6~630 ,直线CV1.8~690 |
允许泄漏量 | 硬密封:IV级(0.01% 阀额定容量) 软密封:VI级(气泡级) 泄漏量标准:GB/T 4213 |
性能指标 | | 气动 | 电动 |
基本误差% | ±1.5 | ±1.0 |
回差% | ≤1.5 | ≤1.0 |
死区% | ≤0.6 | ≤1.0 |
始终点偏差% | ±2.5 | ±2.5 |
额定行程偏差% | ≤2.5 | ≤2.5 |
ZJHP气动单座调节阀、蒸汽气动法兰单座调节阀选用参数表
阀座直径(mm) | 10 | 12 | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 |
额定流量系数Cv | 等百分比 | 1.6 | 2.5 | 4.0 | 6.3 | 10 | 16 | 25 | 40 | 63 | 100 | 160 | 250 | 400 | 630 |
直线 | 1.8 | 2.8 | 4.4 | 6.9 | 11 | 17.6 | 27.5 | 44 | 69 | 110 | 176 | 275 | 440 | 690 |
公称通径 | 行程 | 可选流量系数Cv(★标准型 ●推荐 ○定制) |
DN20 | 16mm | ● | ● | ● | ★ | | | | | | | | | | |
DN25 | ● | ● | ● | ● | ★ | | | | | | | | | |
DN32 | 25 mm | ○ | ○ | ○ | ○ | ○ | ★ | | | | | | | | |
DN40 | | ○ | ○ | ○ | ○ | ● | ★ | | | | | | | |
DN50 | | | ○ | ○ | ○ | ● | ● | ★ | | | | | | |
DN65 | 40mm | | | | | | ○ | ○ | ○ | ★ | | | | | |
DN80 | | | | | | ○ | ○ | ○ | ● | ★ | | | | |
DN100 | | | | | | ○ | ○ | ○ | ● | ● | ★ | | | |
DN125 | 60mm | | | | | | | | | ○ | ○ | ○ | ★ | | |
DN150 | | | | | | | | | | ○ | ○ | ● | ★ | |
DN200 | | | | | | | | | | ○ | ○ | ● | ● | ★ |
气动执行机构 膜片有效面积Ae (cm2) | ZHA/B-22 | ZHA/B-23 | ZHA/B-34 | ZHA/B-45 |
350 | 350 | 560 | 900 |
作用方式 | 弹簧范围 | 金属密封允许压差(MPa) |
气开 | 20-100KPa | 4.46 | 3.09 | 1.98 | 1.16 | 0.7 | 0.44 | 0.28 | 0.18 | 0.17 | 0.11 | 0.07 | 0.07 | 0.05 | 0.03 |
40-200 KPa | 6.4 | 6.4 | 5.94 | 3.34 | 2.14 | 1.31 | 0.84 | 0.53 | 0.51 | 0.33 | 0.21 | 0.22 | 0.15 | 0.09 |
80-240 KPa | 6.4 | 6.4 | 6.4 | 6.4 | 4.99 | 3.05 | 1.95 | 1.25 | 1.18 | 0.78 | 0.5 | 0.51 | 0.36 | 0.21 |
气关 | 20-100KPa | 6.4 | 6.19 | 3.96 | 2.23 | 2.14 | 0.87 | 0.56 | 0.35 | 0.34 | 0.22 | 0.14 | 0.15 | 0.1 | 0.06 |
40-200 KPa | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 5.86 | 3.64 | 2.3 | 2.21 | 1.43 | 0.91 | 0.95 | 0.66 | 0.37 |
80-240 KPa | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 5.04 | 3.18 | 3.06 | 1.98 | 1.26 | 1.32 | 0.92 | 0.52 |
介绍
是一种顶导向单阀座调节阀,具有结构简单、密封性能好、流量大、使用可靠等特点。有效而足够的顶部导向系统克服小开度时的震动,有效使用寿命更长。可选择多弹簧气动薄膜机构或电动执行机构等。