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双点开关 UE进口压差开关J402K-147 美国UE差压开关J402K-147参数及尺寸
过滤器常用差压开关 美国进口差压开关
差压开关工作原理
差压开关由2个膜盒腔组成，两个腔体分别由两片密封膜片和一片感差压膜片密封。高压和低压分别进入差压开关的高压腔和低压腔，感受到的差压使感压膜片形变，通过栏杆弹簧等机械结构，*终启动*上端的微动开关，使电信号输出。差压开关的感压元件不同分为膜片和波纹管式，性能特点亦不同。差压开关由感压元件的组成不同，原理不同，性能也有不同。膜片式可以做成高静压低差压，而波纹管因为本身耐压低。
美国UE400系列差压开关常用型号
J400K-S147B J400K-S157B J400K-147 J400K-157 J400K-455
J400K-456 J400K-457 J400K-559
J402K-540 J402K-541 J402K-542 J402K-543 J402K-544
J402K-545 J402K-546 J402K-547
J402K-S147B J402K-S157B J402K-147 J402K-157 J402K-455
J402K-456 J402K-457 J402K-559
H400K-455 H400K-456 H400K-457 H400K-559
H402K-455 H402K-456 H402K-457 H402K-559
双点开关美国UE差压开关J402K-147参数
系列号-型号 设定点可调范围 死区 ***大工作压力 耐压 压力接口 接液材料
J402K-540 2.5 to 17.4 mbar 0.5 to 2.5 mbar 13.8 bar 27.6 bar 1/8" NPTF Alum-Buna N-Buna N
J402K-541 5.0 to 49.8 mbar 2.5 to 10.0 mbar 13.8 bar 27.6 bar 1/8" NPTF Alum-Buna N-Buna N
J402K-542 12.4 to 124.5 mbar 2.5 to 24.9 mbar 13.8 bar 27.6 bar 1/8" NPTF Alum-Buna N-Buna N
J402K-455 12.4 to 199.1 mbar 5.0 to 19.9 mbar 15.5 bar 15.5 bar 1/4" NPTF Alum-Buna N-Buna N
J402K-543 37.3 to 248.9 mbar 2.5 to 34.8 mbar 13.8 bar 27.6 bar 1/8" NPTF Alum-Buna N-Buna N
J402K-456 0.1 to 1.4 bar 13.8 to 41.4 mbar 15.5 bar 15.5 bar 1/4" NPTF Alum-Buna N-Buna N
J402K-544 0.1 to 1.4 bar 0.1 to 0.3 bar 82.7 bar 172.4 bar 1/8" NPTF Alum-Buna N-Buna N
J402K-147 0.2 to 2.1 bar 0.1 to 0.3 bar 6.9 bar 12.4 bar 1/4" NPTF Ni Plated Brass-Brass
J402K-457 0.2 to 2.1 bar 13.8 mbar to 0.1 bar 15.5 bar 15.5 bar 1/4" NPTF Alum-Buna N-Buna N
J402K-S147B 0.2 to 2.1 bar 0.1 to 0.3 bar 6.9 bar 20.7 bar 1/2" NPTF 316L st/st
J402K-545 0.3 to 3.4 bar 0.1 to 0.4 bar 82.7 bar 172.4 bar 1/8" NPTF Alum-Buna N-Buna N
J402K-157 0.7 to 6.9 bar 0.1 to 0.4 bar 10.3 bar 12.4 bar 1/4" NPTF Ni Plated Brass-Brass
J402K-546 0.7 to 6.9 bar 0.1 to 0.7 bar 82.7 bar 172.4 bar 1/8" NPTF Alum-Buna N-Buna N
J402K-559 0.7 to 6.9 bar 27.6 mbar to 0.1 bar 15.5 bar 15.5 bar 1/4" NPTF Alum-Teflon-Buna N
J402K-S157B 0.7 to 6.9 bar 0.1 to 0.4 bar 12.4 bar 20.7 bar 1/2" NPTF 316L st/st
J402K-547 1.4 to 13.8 bar 0.1 to 1.0 bar 82.7 bar 172.4 bar 1/8" NPTF Alum-Buna N-Buna N
J402K-147 美国UE差压开关尺寸

双点开关 UE进口压差开关J402K-147 美国UE差压开关J402K-147