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【H122P-S126B】美国UE独立密封双触点防爆压力开关

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分类：美国UE压力开关
业务电话： 029-89390083 86696828

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【H122P-S126B】美国UE独立密封双触点防爆压力开关

H122P-S126B 量程-1-0bar 耐压0.3bar
H122P系列配有两个全密封的对开关，外部可调
双触点2*SPDT 焊接316材质接液材质死区5-24.9mbar 压力接口： 1/2NPT内丝电气接口：3/4NPT内丝

压力开关的工作原理：是当系统内压力高于或低于额定的安全压力时，感应器内碟片瞬时发生移动，通过连接导杆推动开关接头接通或断开，当压力降至或升额定的恢复值时，碟片瞬时复位，开关自动复位，或者简单的说是当被测压力超过额定值时，弹性元件的自由端产生位移，直接或经过比较后推动开关元件，改变开关元件的通断状态，达到控制被测压力的目的。压力开关采用的弹性元件有单圈弹簧管、膜片、膜盒及波纹管等。

防爆压力开关的技术参数

1. 测量介质：对丁腈橡胶或316L不锈钢无腐蚀性的气体或液体

2. 外壳：压铸铝，环氧树脂涂层，带密封垫圈的外盖

3. 外壳等级：符合NEMA 4X要求

4. 设定点精度：±1%

5. 切换差：分为可调和不可调两种(参考选型表数据)

6. 重复性误差：<1%

7. 压力接口：标准1/2NPTF内螺纹;可根据现场需要，特殊订制

8. 电气接口：1/2″NPTF螺纹接口，可根据现场需要，特殊订制

9. 开关输出：一个单刀双掷(SPDT)输出;可在调整范围内进行分别设定;开关可接“常开型”或“常闭型”

10. 环境温度：-40℃～+70℃

11. 环境湿度：5%～95%

12. 使用寿命：100 0000次循环

13. 量程范围：0～0.01……60Mpa

14. 压力形式：表压，绝压

15. 输出信号：(V)继电器接点或低电平≤0.5，高电平≥4.5的开关量信号

16. 精度：0.25%FS、0.5%FS

17. 设定范围：下限：0～上限设定低值上限：下限设定值～上限设定值

系列号-型号设定点可调范围死区 ***大过压范围耐压压力接口

接液材料

H122-126 -1.0 to 0 bar 6.8 to 30.5 mbar 0.3 bar 0.3 bar 1/4" NPTF Ni Plated Brass-Brass-Zn Plated st

H122-134 -1.0 to 1.4 bar 6.8 to 40.6 mbar 1.4 bar 1.7 bar 1/4" NPTF Ni Plated Brass-Brass-Zn Plated st

H122-450 -1.0 to 0 bar 3.4 to 13.5 mbar 0.2 bar 15.5 bar 1/4" NPTF 316L st/st-Buna N-Buna N

H122-452 -1.0 to 1.4 bar 3.4 to 33.9 mbar 1.4 bar 15.5 bar 1/4" NPTF 316L st/st-Buna N-Buna N

H122-550 -1.0 to 0 bar 3.4 to 20.3 mbar 0.2 bar 15.5 bar 1/4" NPTF 316L st/st-Teflon-Viton

H122-552 -1.0 to 1.4 bar 6.8 to 33.9 mbar 1.4 bar 15.5 bar 1/4" NPTF 316L st/st-Teflon-Viton

H122-S126B -1.0 to 0 bar 6.8 to 30.5 mbar 0.2 bar 0.3 bar 1/2" NPTF 316L st/st

H122-S134B -1.0 to 1.4 bar 6.8 to 40.6 mbar 1.4 bar 1.7 bar 1/2" NPTF 316L st/st

H122-144 0 to 1.4 bar 6.9 to 34.5 mbar 1.4 bar 1.7 bar 1/4" NPTF Ni Plated Brass-Brass

H122-453 0 to 1.4 bar 3.4 to 13.8 mbar 1.4 bar 15.5 bar 1/4" NPTF Alum-Buna N-Buna N

H122-553 0 to 1.4 bar 3.4 to 20.7 mbar 1.4 bar 15.5 bar 1/4" NPTF 316L st/st-Teflon-Viton

H122-S144B 0 to 1.4 bar 6.9 to 34.5 mbar 1.4 bar 1.7 bar 1/2" NPTF 316L st/st

H122-146 0 to 2.1 bar 6.9 to 41.4 mbar 2.1 bar 2.8 bar 1/4" NPTF Ni Plated Brass-Brass

H122-454 0 to 2.1 bar 3.4 to 20.7 mbar 2.1 bar 15.5 bar 1/4" NPTF Alum-Buna N-Buna N

H122-554 0 to 2.1 bar 6.9 to 27.6 mbar 2.1 bar 15.5 bar 1/4" NPTF 316L st/st-Teflon-Viton

H122-S146B 0 to 2.1 bar 6.9 to 41.4 mbar 2.1 bar 2.8 bar 1/2" NPTF 316L st/st

H122-156 0 to 6.9 bar 13.8 mbar to 0.1 bar 6.9 bar 8.6 bar 1/4" NPTF Ni Plated Brass-Brass

H122-555 0 to 6.9 bar 17.2 mbar to 0.1 bar 6.9 bar 15.5 bar 1/4" NPTF 316L st/st-Teflon-Viton

H122-702 0.7 to 6.9 bar 0.1 to 0.3 bar 6.9 bar 68.9 bar 1/4" NPTF Ni Brass-Buna N-Buna N

系列号-型号设定点可调范围死区 ***大过压范围耐压压力接口

接液材料

H122-S156B 0 to 6.9 bar 13.8 mbar to 0.1 bar 6.9 bar 8.6 bar 1/2" NPTF 316L st/st

H122-164 0 to 13.8 bar 20.7 mbar to 0.1 bar 13.8 bar 13.8 bar 1/4" NPTF Ni Plated Brass-Brass

H122-270 0 to 13.8 bar 0.1 to 0.6 bar 13.8 bar 17.2 bar 1/4" NPTF Ni Plated Brass-Ph Bronze

H122-358 0 to 13.8 bar 0.1 to 0.6 bar 13.8 bar 17.2 bar 1/4" NPTF 316L st/st

H122-S164B 0 to 13.8 bar 20.7 mbar to 0.1 bar 13.8 bar 13.8 bar 1/2" NPTF 316L st/st

H122-274 0 to 20.7 bar 0.1 to 0.7 bar 20.7 bar 24.1 bar 1/4" NPTF Ni Plated Brass-Ph Bronze

H122-361 0 to 20.7 bar 0.1 to 0.6 bar 20.7 bar 24.1 bar 1/4" NPTF 316L st/st

H122-703 2.1 to 20.7 bar 0.1 to 0.5 bar 20.7 bar 68.9 bar 1/4" NPTF Ni Brass-Buna N-Buna N

H122-376 0 to 34.5 bar 0.2 to 0.8 bar 34.5 bar 39.6 bar 1/4" NPTF 316L st/st

H122-704 3.4 to 34.5 bar 0.2 to 0.8 bar 34.5 bar 172.4 bar 1/4" NPTF Ni Brass-Buna N-Buna N

H122-705 13.8 to 68.9 bar 0.3 to 1.7 bar 68.9 bar 172.4 bar 1/4" NPTF Ni Brass-Buna N-Buna N

H122-612 13.8 to 206.8 bar 2.8 to 17.2 bar 413.7 bar 689.5 bar 1/4" NPTF 303 st/st-303 st/st-Buna N

H122-614 34.5 to 413.7 bar 3.4 to 27.6 bar 413.7 bar 689.5 bar 1/4" NPTF 303 st/st-303 st/st-Buna N

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【H122P-S126B】美国UE独立密封双触点防爆压力开关