J400-443 美国UE压力开关现货
	来源:www.sorswitch.com2020-05-29 10:11
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 美国UE J402-443压力开关
 

J400-443  0-19.91KPa   1*SPDT  丁腈橡胶膜片 及O型圈  1/4NPT内丝过程接口 材质铝 *大压力0.2公斤

机械压力开关，为纯机械形变导致微动开关动作。

当压力增加时，作用在不同的传感压力元器件（膜片、波纹管、活塞）产生形变，将向上移动，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。

控制泵起停
开关控制泵的起停。工艺，一般由泵做一个动力源，将特定区域内的压力控制在(a，b)区间内，是否到达a、b点由开关输出开关量信号。
方案一：H100-15731~15737,死区可调，SPDT输出，开关点的开闭可直接控制泵的起停。劣势：无现货，设定点易漂移可达设定点的10%现场需有校验能力，优势：中间不需要加逻辑控制器，也不会出现开关点死区>b-a区间所带来的问题。
方案二：J402，2个SPDT输出。劣势，要加逻辑继电器两点同时动作时输出信号，优势：b-a>c时候不漂移。

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
J402-521 -24.9 to 24.9 mbar 0.5 to 2.5 mbar 13.8 bar 27.6 bar 1/2" NPTF
Alum-Buna N-Buna N
J402-531 -24.9 to 24.9 mbar 0.5 to 2.5 mbar 3.4 bar 6.9 bar 1/2" NPTF 316L st/st
J402-522 -124.5 to 124.5 mbar 0.5 to 12.4 mbar 13.8 bar 27.6 bar 1/2" NPTF Alum-Buna N-Buna N
J402-532 -124.5 to 124.5 mbar 0.5 to 14.9 mbar 3.4 bar 6.9 bar 1/2" NPTF 316L st/st
J402-448 -199.1 to 0 mbar 5.0 to 14.9 mbar 0.2 bar 15.5 bar 1/4" NPTF 316L st/st-Buna N-Buna N
J402-520 -746.7 to 0 mbar 1.0 to 29.9 mbar 13.8 bar 27.6 bar 1/2" NPTF Alum-Buna N-Buna N
J402-530 -746.7 to 0 mbar 1.0 to 37.3 mbar 3.4 bar 6.9 bar 1/2" NPTF 316L st/st
J402-126 -1.0 to 0 bar 13.5 mbar to 0.1 bar 0.2 bar 0.3 bar 1/4" NPTF Ni Plated Brass-Brass-Zn Plated st
J402-134 -1.0 to 1.4 bar 13.5 mbar to 0.1 bar 1.4 bar 1.7 bar 1/4" NPTF Ni Plated Brass-Brass-Zn Plated st
J402-450 -1.0 to 0 bar 6.8 to 27.1 mbar 0.2 bar 15.5 bar 1/4" NPTF 316L st/st-Buna N-Buna N
J402-452 -1.0 to 1.4 bar 13.5 mbar to 0.1 bar 1.4 bar 15.5 bar 1/4" NPTF 316L st/st-Buna N-Buna N
J402-550 -1.0 to 0 bar 6.8 to 40.6 mbar 0.2 bar 15.5 bar 1/4" NPTF 316L st/st-Teflon-Viton
J402-552 -1.0 to 1.4 bar 13.5 mbar to 0.1 bar 1.4 bar 15.5 bar 1/4" NPTF 316L st/st-Teflon-Viton
J402-S126B -1.0 to 0 bar 13.5 mbar to 0.1 bar 0.2 bar 0.3 bar 1/2" NPTF 316L st/st
J402-S134B -1.0 to 1.4 bar 13.5 mbar to 0.1 bar 1.4 bar 1.7 bar 1/2" NPTF 316L st/st
J402-523 1.2 to 12.4 mbar 0.5 to 0.7 mbar 13.8 bar 27.6 bar 1/2" NPTF Alum-Buna N-Buna N
J402-533 1.2 to 12.4 mbar 0.5 to 0.7 mbar 3.4 bar 6.9 bar 1/2" NPTF 316L st/st
J402-441 0 to 24.9 mbar 0.7 to 1.5 mbar 0.2 bar 15.5 bar 1/4" NPTF Alum-Buna N-Buna N
J402-442 0 to 49.8 mbar 1.0 to 2.5 mbar 0.2 bar 15.5 bar 1/4" NPTF Alum-Buna N-Buna N