产品分类
【西安UE】进口差压控制器不锈钢差压控制器J400K-S157B
差压开关死区(回差)对工艺选型的影响
死区是指压力开关行动值与复原值之间的差值,国外叫死区,国外咱们指的切换差,也有的人叫回差,譬喻须要设定低报11MPa,要是这个开关的死区是1MPa,那么当压力在12MPA开关才会复位,然则假设整治中这个压力达不到12MPA的话,那末压力开关一直处于报警外形,复不了位。以是在决意机器式压力开关的话,就得考虑死区了,颇为是在双点决定的环境下更要当心。标注的典范死区的***大及***小值是根据***线的设定中得出来的 ,假如设定在其可调规模的低端,那么死区也濒临于***小值,相斥,死区就会濒临于标注中的***大值。其它有的型号死区是固定的,有的型号死区是可调的。电子式的压力开关凡是全量程可调的,所以不重要思量死区。
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。
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
● UE J400系列机械压力开关的常用型号:
J400-S126B/S134B/S137B/S144B/S152B/S156B/S164B
J400-126/134/137/144/152/156/164
J402-S126B/S134B/S137B/S144B/S152B/S156B/S164B
J402-126/134/137/144/152/156/164
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