UE型号参数:
J120-553 3.45-140KPa 34.5mbar-1.4bar 特氟龙接液材质 氟橡胶O型圈 压力接口1/4NPTF不锈钢材质 电气接口3/4NPTF 耐压1.55MPa
防爆压力开关的工作原理
防爆压力开关是通过坚固的密封壳体将接线触点密闭在坚固空间中达到隔爆的效果。
防爆压力开关工作原理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,设定方式从功能原理上又分成连续位移型和力平衡型。防爆压力开关按原理可分为机械防爆压力开关和电子防爆压力开关,机械式中又分为普通的和密封型。
UE压力开关的特点:
·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范围
·英寸水柱系列:-300" 水柱真空到 250"水柱 (-746.7 到 622.3 mbar)
·压力: 30" Hg 到 6000psi
·压差: 1" 水柱压差 到 200 psid(0 到 13,8 bar)
·温度: -180 到 650°F(-115℃到 340℃)
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
J120-152 0.1 to 3.4 bar 6.9 to 34.5 mbar 3.4 bar 5.2 bar 1/4" NPTF
Ni Plated Brass-Brass
J120-172 0.1 to 3.4 bar 6.9 mbar to 0.1 bar 34.5 bar 68.9 bar 1/2" NPTF 316L st/st
J120-184 0.1 to 3.4 bar 20.7 mbar to 0.2 bar 34.5 bar 68.9 bar 1/2" NPTF 316 st/st-316L st/st-Viton
J120-484 0.1 to 3.4 bar 20.7 mbar to 0.2 bar 34.5 bar 68.9 bar 1/2" NPTF 316 st/st-316L st/st-Viton
J120-S152B 0.1 to 3.4 bar 6.9 to 34.5 mbar 3.4 bar 5.2 bar 1/2" NPTF 316L st/st
J120-156 0.1 to 6.9 bar 13.8 to 41.4 mbar 6.9 bar 8.6 bar 1/4" NPTF Ni Plated Brass-Brass
J120-173 0.3 to 6.9 bar 6.9 mbar to 0.2 bar 34.5 bar 68.9 bar 1/2" NPTF 316L st/st
J120-185 0.3 to 6.9 bar 34.5 mbar to 0.4 bar 34.5 bar 68.9 bar 1/2" NPTF 316 st/st-316L st/st-Viton
J120-191 0.7 to 6.9 bar 0.1 to 0.6 bar 103.4 bar 172.4 bar 1/2" NPTF 316 st/st
J120-356 1.0 to 6.9 bar 48.3 mbar to 0.1 bar 6.9 bar 55.2 bar 1/4" NPTF 316L st/st
J120-485 0.3 to 6.9 bar 34.5 mbar to 0.4 bar 34.5 bar 68.9 bar 1/2" NPTF 316 st/st-316L st/st-Viton
J120-491 0.7 to 6.9 bar 0.1 to 0.6 bar 103.4 bar 172.4 bar 1/2" NPTF 316 st/st
J120-555 0.1 to 6.9 bar 13.8 to 27.6 mbar 6.9 bar 15.5 bar 1/4" NPTF 316L st/st-Teflon-Viton
J120-566 0.7 to 6.9 bar 0.1 to 0.8 bar 68.9 bar 103.4 bar 1.5" Sanitary 316L st/st
J120-702 0.2 to 6.9 bar 0.1 to 0.3 bar 34.5 bar 68.9 bar 1/4" NPTF Ni Plated Brass-Buna N-Buna N
J120-S156B 0.1 to 6.9 bar 13.8 to 41.4 mbar 6.9 bar 8.6 bar 1/2" NPTF 316L st/st
J120-15835 0.3 to 6.9 bar 0.2 to 0.6 bar (ADJ) 34.5 bar 68.9 bar 1/4" NPTF Ni Plated Brass-Buna N-Buna N
J120-164 0.3 to 13.8 bar 13.8 mbar to 0.1 bar 13.8 bar 13.8 bar 1/4" NPTF Ni Plated Brass-Brass
J120-174 0.6 to 13.8 bar 6.9 mbar to 0.2 bar 34.5 bar 68.9 bar 1/2" NPTF 316L st/st