壓差開(kāi)關(guān)是一種特殊的控制開(kāi)關(guān),，它是依據(jù)相互部件間的壓力差值并依靠電信號(hào)進(jìn)行信息傳遞控制開(kāi)關(guān)閉合或打開(kāi)的一類開(kāi)關(guān),。 [1]  總的來(lái)說(shuō)就是利用兩條管道的壓差來(lái)發(fā)出電訊號(hào),，當(dāng)系列液管二端的壓差升高（或降低）而超過(guò)控制器設(shè)定值時(shí),，發(fā)出信號(hào)以控制換向閥換向或監(jiān)視潤(rùn)滑系統(tǒng),。則閥門進(jìn)而開(kāi)大（或關(guān)小）,，從而系統(tǒng)液管二端的壓差減小,，達(dá)到系統(tǒng)的正常運(yùn)行。

壓差開(kāi)關(guān)可廣泛應(yīng)用在使用板式換熱器,、套管式換熱器和殼管式換熱器的大中小型風(fēng)冷或水冷冷水機(jī)組中作水流量控制及水泵和水過(guò)濾器狀態(tài)的監(jiān)控。也同時(shí)應(yīng)用于氣體檢測(cè),、非腐蝕性介質(zhì),、測(cè)量絕壓、表壓,，廣泛應(yīng)用在空調(diào)和潔凈室,、風(fēng)扇和過(guò)濾器的吹風(fēng)控制、流體和液位控制,。

GARANT    M6*1*80 135100-M6 

Burkert 0142A25 0 EPDM PV D32 

Heidolph Elektro GmbH & Co. KG  TYP 832.113.0029 (AC230V 50HZ 42W) 

suco    油壓開(kāi)關(guān)    0184-45703-3-003 

KUKA 00-134-217 KR16 

parker  G5-5-1E13S-20R 

POGGI PL 40 RPP 8 30-3F ;BU.D38% 

vickers DG4V-3-2A-M-U-H7-60+plug with light 

GESSMANN UGE2-75-10 75:1 

BURGESS V4NT7UL 

REXROTH DB10-2-5X/100U 4WRTE25W6-350L-4X/6EG24K31/F1M LFA25DB2-7X/050 

josef mehrer 7212 

cee norm 32-6H 380-415V 3P TYP 283 

Setra P/N:2091016BG2M11H2 SN:2310 4319501 

 bucher DIRECTIONAL VALVE SOLENOID SWI 100029894 LVS08DD4A5BJ21A00B-AA/PA=PB= 

DESTACO DOUBLE?ROD?CYLINDER|86D60-104D800A 

sun A711-052-G01 

MAKINO Z292O0101020 

Murr 7000-78081-0000000 

DEMAG馬格 產(chǎn)品名稱1 

heidenhain 572248-11 

BALLUFF BKS-S33M-00 

Schlegel KCM312906B1ag 

DESOUTTER 661.89 

TURCK圖爾克 6627956;CABLE3x0.34-SH-PUR-BK-100M/TXL ;313 

B&R Industrie-Elektronik GmbH 8AC122.60-4 

Multi-Contact 18.9005 

rexroth R901081737 

TOPWORX LEVERLESS LIMLT SWITCH SPDT 4A 120VAC 3A 24VDC RESISTIVE SERIAL NO. 131004-A MODEL NO. 35-13319M 

Jahns-Regulatoren GmbH JPSM15000-P4C-226-WRC65;5005ME071-8 

VOGEL 1607PSG20304/00/00A,24-3720-3625 

MICRO DETECTORS FA19/LP-2AFC 

PHOENIX 5439455 

HAAKE 703-00487 

Sommer-Technik BK1030-02  

  kral BSM89 (Pos.-Nr.668) for KRAL pump M 54.48 

NORD SK 90L/4 BRE20 HL 1.5KW 

GUTEKUNST D-252A-40 

SCHUNK夾具 0364422SRU-plus50-W-180-3-8-EX 

kuebler 8.5020.DA1A.1024.0050 

TR MP-060-PB-MDI001 ART.510-40003 SN.0528 

INFICON GmbH  Ecotec E3000 230V Nr:530-001 

LORENZ K25-2kN 

rexroth MKD071B-035-KPI-KW 

LECHLER  Model: 664.886.5E/Base: 066.410.5E/nut: 065.600.5E/material: PVDF/injection angle: 80 ??/flow: 17.4L/min/pressure: 3bar 

STOBER MDS5110A/L 55406 s/n:8011704 

schmersal AZM 170-02zka,Ui 250V IP67,24VAC/DC,40-60HZ 

NEUTRIK NP3X-B 

VAHLE (VAHLE)U10/25C-6000PH-B 

heidenhain ERN 1387.020-2048 ID:385487-03/ L3 SN:28 441 127C 

Hengstler R158-TD/250ED.37KX-CO-S 

TRAFAG GmbH sensors & controls 900.2377.906.38.G1/2 

  EGE P40010 ,，KGM 015 WO 

Transfluid 34CCKRB B.O.M:3098 NH005 

    GOLDAMMER NTR70-SR45-K2-A-VM-L370-03 L1/250/S-L2/150/S-L3/50/0 

ERMETO GE20SRCF 

ETH 109DRWPL-I-0,1-n            

Lincoln EG41/60/0-40MPa/G1/4/CBM/FF 

setra 600751 

FLECK Fleck5600st 

COAX(） VFK-H15 NBR密封 常閉 PN160 

hydac FSK-176/2.4/0/-/12 

Diametral V140R50D 

KEB L108000720046014 

Micro-Epsilon WDS750-P60-SR-U 

Weidmueller    COUPLING RJ45 - RJ45, IP20, CAT.6 (ISO/IEC 11801),8879050000 

DOLD 繼電器 AN9843.82/215 3AC50/60HZ 400/690V 

 JUMO久茂 溫控儀 70 2044/99-999-000-23/210.061              

Brinkmann KC31+U012+195/no:0402053478 

BALLUFF BTL5-E10-M1200-B-KA10 

INTERNORMEN 01.E.320.25VG.16.E.P 

Maedler GmbH 10123800 

sames Z125271176 

HOFFMAN ENCLOSURE, 316SS, NEMA 4X A48HS3712LP 

Wolfgang Warmbier Ringelektrode inkl.Zertifikat DE/EN 7220.880.KA 

Phoenix 3030174 

INA INA 87 XOARWU 35DH FE 

CONZELLA 843MK4 

SIKO DA02-02-30-0-E-10-O-A 

ANSALDO AT636S18??1500V??1850A 

 JUMO久茂 -4-SA | 50038539 | TERMINATOR |              

HAHN+KOLB 31154120 

balluffBTL5-E10-M0600-P-S32 

Temperaturmesstechnik Geraberg GmbH PT100 2-116948 

STRACK Z5140-0 （Mould 5-009) 

bucher PRESSURE RELIEF VALVE 400550077 DDPC-1L-4-42-H-2 

Schneider XVB-C33 

 JUMO久茂 608520/2110-818-02-2000-843-8-105-96-46-485-              

HBE Softex 28/38.18-38x60 GG 

ZIEHL-ABEGG    RH35B-2EK.6N.2R 125999 

heidenhain 548139-01 IDP182 

GPP GPP-DLM-120-R,4011000195 

CLEMESSY 100754 

Holmatro JJ5013 

HIMA F6217-J 

nass 0550 00-1-00/4982 

Improbond Artikel-Nr.03_9400_06S 

buehler OLFB-10413-001 

balluff BTL5-E17-M0225-P-SA225-KA02 

LENZE GST09-2M VCK 132-22 

CONTRINEX瑞士科瑞 LLK-4150-000 

demag KBA 71 B4G NO71724675 

Stuebbe SUS304-15A 

JAHN SAG16/R1/2-SCH5 255714200000 

AIRON  R1127-010 JRP.1 

ganter DIN179-B20-20-A 

BACHMANN CS200/N 

VAHLE KDST 250/25 

AVTRON HS9AS1Z23WU2X933 

Rexroth R480223067 

Rexroth please see the mail 

LINMOT 0150-1735 

heidenhain 727222-57 

beckhoff KL2622 

 PHOENIX PC 5/ 2-G-7,62 BD:L+,L+ 

STAHLWILLE 50 20 00 81 

OR(Officine Rigamonti ) Model No.:TMG250.A.15.A05.T0.XX; Part no : F.84630.1 - 2 

COAX(） 112918+113548 

balluffBCC M425-0000-1A-004-PX0334-030 

Gestra RK44 PN16 DN 80 mit 300mbar feder