UE双触点防爆开关【H122-S146B H122-S156B H122-S164B】2*SPDT
H122-S146B 量程0-2.1bar 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
H122-S156B 量程 0-6.9bar 双触点2*SPDT 焊接316材质接液材质 死区6.9-34.5mbar 压力接口： 1/2NPT内丝 电气接口：3/4NPT内丝
H122-S164B 量程 0-13.8bar 双触点2*SPDT 焊接316材质接液材质 死区6.9-34.5mbar 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。
压力开关主要特点
压力开关主要类别包括常开式和常闭式。主要特点是：
1、采用英制管螺纹快速接头或铜管焊接式安装结构，安装灵活，使用方便，无需特殊的安装固定。
2、插片式导线式连接方可供用户任意选定。
3、密封式不锈钢感应器安全可靠。
4、压力范围内可根据用户任意选定的压力值进行制造。
压力开关是与电器开关相结合的装置，当到达预先设定的流体压力时，开关接点动作。主要应用于电厂、石化、冶金行业等工业设备上输出报警或控制信号，在工业领域中有着重要的用途，能预防生产工程中重要装置的损坏，避免了重大生产事故地发生。
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
在线业务
