产品分类
【UE J400K-157 0.7-6.9bar】进口差压控制器差压继电器差压开关
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- 分类：美国UE差压开关
- 业务电话： 029-89390083 86696828
【UE J400K-157 0.7-6.9bar】进口差压控制器差压继电器差压开关
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。
***大压力，耐压对开关的影响
***大压力是指开关可以延续蒙受的压力而不会引起设定点的漂移或松弛传感元件。耐压：传感元件笼统有时遭受的***大压力，开关不会败不好但紧要从头标定设定值。
单点差压开关选型:
规格 传感器材质及感压元件 压力接口 可调范围(bar) 大压力(bar) 耐压(bar)
J400K-S147B 316不锈钢波纹管 1/2″NPTF 0.2-2.1 -1-6.9 20.7
J400K-S157B 316不锈钢波纹管 1/2″NPTF 0.7-6.9 -1-12.4 20.7
J400K-147 黄铜波纹管 1/4″NPTF 0.2-2.1 -1-6.9 12.4
J400K-157 黄铜波纹管 1/4″NPTF 0.7-6.9 -1-12.4 12.4
J400K-455 丁腈橡胶膜片，O形密封圈 1/4″NPTF 12-200mbar -1-15.5 15.5
J400K-456 丁腈橡胶膜片，O形密封圈 1/4″NPTF 0.1-1.4 -1-15.5 15.5
J400K-457 丁腈橡胶膜片，O形密封圈 1/4″NPTF 0.2-2.1 -1-15.5 15.5
产品特点
● 双点和三点设定提供多点的输出
● 一、二或三个开关量输出，设定点***的范围内可分别设定
● 环氧树脂外壳设计满足 NEMA 4X 要求
● 多种膜片可供选择，如316SS，黄铜，丁晴橡胶和Teflon
● 选择参照标度或旋转螺杆调整设定点
J400 K系列差压：
J400K-127、J400K-128、J400K-129、J400K-130、J400K-131、J400K-132、J400K-133、J400K-134、J400K-135、J400K-136、
J400K-137、J400K-138、J400K-139、J400K-140、J400K-141、J400K-142、J400K-143、J400K-144、J400K-145、J400K-146、J400K-147、J400K-148、J400K-149、J400K-150、J400K-151、J400K-152、J400K-153、J400K-154、J400K-155、J400K-156、J400K-157；
J400K-232、J400K-233、J400K-234、J400K-235、J400K-236、J400K-237、J400K-238、J400K-239、J400K-240、J400K-241、J400K-242、J400K-243、J400K-244、J400K-245、J400K-246、J400K-247、J400K-248、J400K-249、J400K-250、J400K-251、J400K-252、J400K-253、J400K-254；
J400K-S127B、J400K-S128B、J400K-S129B、J400K-S130B、J400K-S131B、J400K-S132B、J400K-S133B、J400K-S134B、J400K-S144B、J400K-S145B、J400K-S146B、J400K-S147B、J400K-S148B、J400K-S149B、J400K-S150B、J400K-S151B、J400K-S152B、J400K-S153B、J400K-S154B、J400K-S155B、J400K-S156B、J400K-S157B