H121-270美国UE隔爆压力开关选型（Selection of H121-270 American UE explosion-proof pressure switch ）

H121-270 American UE explosion-proof pressure switch selection H121-270 Measuring principle: bellows measuring bronze liquid-wetting material pressure interface 1/4NPT inner wire nickel-plated interface Range: 0-200PSI / 0-13.8bar Pressure resistance 17.2bar. The US UE pressure switch 120 series pressure switch can provide different pressure, differential pressure, vacuum and temperature ranges, and can also provide different connection methods, various materials and pressure sensing element types. It is precisely because of this flexible selection method that the 120 series of American UE pressure switches can be widely used in chemical industry, petrochemical, oil refining, oil fields, drilling platforms, and oil pipelines. The 120 series of American UE pressure switches can provide different pressures, differential pressures, Vacuum and temperature ranges, different connections, various materials and pressure sensitive element types are also available. It is precisely because of this flexible selection method that the 120 series US UE pressure switch can be widely used in various industrial processes such as chemical industry, petrochemical industry, oil refining, oil field, drilling platform, oil pipeline and pharmaceuticals. and various industrial processes such as pharmaceuticals. The protection standard of the UE switch in the United StatesNEMA protection level is the enclosure protection standard for industrial control devices and systems of the American Electrical Manufacturers Association. In addition to dustproof and waterproof, NEMA's protection standard also includes explosion-proof (IP code only includes dustproof and waterproof). NEMA 4X: (watertight, dusttight, corrosion-resistant, indoor or outdoor use enclosures): Intended for use indoors or outdoors, primarily to provide a degree of protection against corrosion, flying dust and rain, splashing water, hose-out water , and damage due to external icing. NEMA 4X is equivalent to IP66 What's the difference? NEMA 7X, NENA 9X (J120 series, for explosion-proof switches)American UE explosion-proof pressure switchJ120 type (one single-pole double-throw SPDP output, internally adjustable, no reference scale, two electrical interfaces)H121 type (one single-pole double-throw SPDP output, externally adjustable, with reference scale, an electrical interface)Type H122 (two SPDP outputs, adjustable externally, with a reference scale, and an electrical interface) Type H122P (two SPDP outputs, adjustable externally, with a reference scale, an electrical interface, sealed switch) H121-270UE switch shipment map

注：除H121-270美国UE隔爆压力开关选型，更多United Electric(UE)型号欢迎电话或在线联系。

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