J120-455防爆进口压力开关（J120-455 explosion-proof imported pressure switch ）

J120-450 J120-451 J120-452 J120-453 J120-455 Explosion-proof pressure controller US UE/United States United Electric pressure switch passed ISO9000 certification J120-450/451/452/453/455 Setting range Technical parameters and models Model Adjustable Set Point Range Deadband Over Range               psi                            bar psi bar psi bar             Buna N diaphragm and O-Ring with 1/4” NPT (female) stainless steel connection and cap 450 30 ”Hg Vac to 3 ”Hg Vac -1 to -0,1 0.1 to 0.3 ”Hg 3,4 to 10,2 mbar 80 "wc 199,1 mbar   451 2 to 80” wc 5 to 199,1 mbar 0.8 to 2 ”wc 2 to 5 mbar 80 ”wc 199,1 mbar  452 30 ”Hg Vac to 20 psi -1,0 to 1,4 0.1 to 0.4 ”Hg 3 ,4 to 13,5 mbar 20 1,4           453 0.5 to 20 34,5 mbar to 1,4 bar 0.05 to 0.1 3,4 to 6,9 mbar 20 1,4              454 0.8 to 30 55,2 mbar to 2, 1 bar 0.05 to 0.2 3,4 to 13,8 mbar 30 2,1   American UE explosion-proof switch selection guide J120 pressure switch J120 type (one SPDP output, internally adjustable, no reference scale, two electrical ports) H121 type (one single pole double throw SPDP output, externally adjustable, with reference scale, one electrical interface) H122 type (two single pole double throw SPDP output, externally adjustable, with reference scale, one electrical interface) H122P type (two Single pole double throw SPDP output, externally adjustable, with reference scale, one electrical interface, sealed switch) J120K differential pressure switch J120K type (one single pole double throw SPDP output, internally adjustable, no reference scale, two electrical interfaces)Type H121K (one SPDP output, externally adjustable, with reference scale, one electrical interface) H122K type (two SPDP outputs, externally adjustable, with reference scale, one electrical interface) temperature switch B121 ( In-line, single-point output, externally adjustable, with reference scale, single conduit) Type B122 (in-line, dual-point output, externally adjustable, with reference scale, single conduit) Type C120 (in-line, Single-point output, internally adjustable, without reference scale, double conduit) Type E121 (bulb and capillary, single-point output, externally adjustable, with reference scale, single conduit) Type E122 (bulb and capillary, Dual output, externally adjustable, with reference scale, single conduit) Model F120 (bulb and capillary, single output, internally adjustable, without reference scale, dual conduit) Model 820E (bulb and capillary, Single-point output, externally adjustable, with temperature indicator, double conduit) 822E type (temperature bulb and capillary type, dual-point output, externally adjustable, with temperature indicator, dual conduit) US UE explosion-proof pressure switch technology Parameters Measuring medium: non-corrosive gas or liquid to nitrile rubber or 316L stainless steel Housing: die-cast aluminum, epoxy resin coating, cover with sealing gasket Housing rating: meets NEMA 4X requirements Set point accuracy: ±1% Switching difference: divided into two types: adjustable and non-adjustable (refer to the data in the selection table) Repeatability error: <1% Pressure interface: standard 1/2NPTF internal thread; according to site needs, special custom electrical interface: 1/2″ NPTF threaded interface can be customized according to site needsSwitch output: a single-pole double-throw (SPDT) output; 100% can be set separately within the adjustment range; the switch can be connected to "normally open" or "normally closed" ambient temperature: -40℃～+70℃ explosion-proof grade : Exd II CT6 protection level: IP66 

注：除J120-455防爆进口压力开关，更多United Electric(UE)型号欢迎电话或在线联系。

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