当系统内压力高于或低于额定的安全压力时，感应器内碟片瞬时发生移动，通过连接导杆推动开关
接头接通或断开，当压力降至或升额定的恢复值时，碟片瞬复位，开关自动复位，或者简单的说是当被测压力超过额定值时，弹性元件的自由端产生位移，直接或经过比较后推动
开关元件，改变开关元件的通断状态，达到控制被测压力的目的。
压力开关采用的弹性元件有单圈
弹簧管、膜片、膜盒及
波纹管等。SOR 201NN-KK105-U9-C7A-TTYYX373SOR SOR17RBSOR SOR201RNSOR 6NN-K5-N4-C2A-TT 138-1241KPASOR 1NN-K45-M4-C2A-TT 6-12MPSOR 6NN-K3-M4-C2A-TTXX618SOR 107AL-K12-P1-F0A-TT(配1/8NPT(外SOR 0-2SOR-K44NN-K4-N4-B1A-TTS371SOR O-10SOR6NW-K5-N4-F1ASOR O-3SOR-4NN-K5-N4-B1A-TTS371SOR O-6SOR6NN-K3-N4-F1ASOR 101NN-K3-N4-01A-TTSOR 101RM-KK3-M4-CXA-TTYYPKX3X373SOR 103W1-KK212-M4-CXA-TTYYPKX3X373SOR 103W1-KK502-M4-CXA-TTYYPKX3X373SOR 107AL-K40-P1-F0ASOR 107AL-N40-P1-F1ASOR 15RB-EE2-N4-C2ASOR 17RB-K2-M4-C1A-TTX371SOR 1RM-KK45-M4-CXA-TTYYPKX3X373SOR 3B3-KKS-M4-CXA-TTYYPKX3X373SOR 4NN-K5-N4-B1A-TTSOR 4NN-KK4-M4-C1A-TTYYPKX373SOR 4RM-KK2-M4-CXA-TTYYPKX3X373SOR 5RM-KK3-M4-C1A-TTYYPKX3X373SOR 6L-K3-N4SOR 6NN-K3-M4-CXA-TTYYPKX373SOR 6RM-KK3-M4-CXA-TTYYPKX3X373SOR 6RM-KK5-M4-CXA-TTYYPKX3X373SOR 9AG-EF45-N1-F1A-XX618SOR ST307-150-BSOR 15RB-EE2-N4-DIA 2.5-8.0PSISOR 17RB-EE3-N4-LIA 5-60PSISOR 6NN-K3-N4-F1A 12-100PSISOR 102W1-K105-P1-C2A-GGPKSOR E100-3BS-15S-15S-WO50-M201SOR WZP2-267SOR 107A1-N12-P1-F1ASOR 107A1-N40-P1-F1ASOR 12NN-K5-N4-BIASOR 6NN-K3-N4-FIASOR 107A1-N12-PI-FIASOR 107A1-N40-PI-FIASOR GAC-AD45-M2-FIA-X801SOR 配208A-E1B-B-B4-N4-ETTTX371的铸SOR 101LC-K3-N4-C1A-RRX2X373SOR 101NN-K3-N4-C1A-RRX2X373SOR 10N-K45-N4-C1A-RRX373SOR 4NN-K4-N4-B2A-RRX373SOR 54NN-KI18-N4-B2A-RRX373SOR 5NN-K3-M9-F2A-RRX373SOR 5NN-K45-N4-C2A-RRX373SOR 66V1-EE5-N4-B2A-RRX373SOR 6NN-K3-N4-F2A-RRX373SOR 6NN-K5-N4-F2A-RRX373SOR 6NN-K5-N9-F2A-RRX373SOR D2T-H1B5SSOR F402-6BSSOR H1DDK-524-M201SOR J400K-S156BSOR J400K-S157BSOR 6NN-K3-N4-F1ASOR 6NN-K5-N4-F1ASOR 107AL-K12-P1-FOASOR DN40SOR 9NN-K45-N4-FIA-X373 200-1750PS1SOR 1RN-K45-M4-C2ASOR 201NN-K125-U9-C7A-TTYYPKX373SOR E100-3BS-15S-15S-W050-M201SOR WZP2-267SOR 201NN-K125-U9-C7A-TTYYPKX373SOR E10-3BS-15S-15S-W050-M201SOR 5AC-AD45-M2-F1A-X801SOR 12NN-K5-N4-B1A 0.75-12PSI 0.5
