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1、1Registered Quality System to ISO 9001 Pressure and Vacuum Switches for Process Applications Form 216 SOR Pressure Switches are rugged field-mounted instruments. The pressure sensing element of the SOR pressure switch is a force-balance, piston-actuated assembly. The sensing element is sealed by a f
2、lexible diaphragm and a static o-ring. A wide selection of wetted parts materials for media compatibility and containment are available. A metal diaphragm may be welded to the pressure port for certain applications, thereby eliminating the o-ring. Application Information The SOR pressure switches in
3、 this catalog are suitable for a variety of process applications. Basic models with standard wetted parts are normally suitable for air, oil, water and non- corrosive processes. See the Quick Selection Guide on page 3. Specific application requirements can normally be met by selecting optional compo
4、nents, such as switching elements, diaphragm systems and pressure ports. See How to Order on page 3. Certain applications may require customized specials. Consult the SOR representative in your area or the factory. This catalog describes switches that are: General Purpose Weathertight Conventional E
5、xplosion Proof Other specific types of switches available through your SOR representative are: Hermetically Sealed (for hazardous locations) Pivot Seal (for high shock pressures and cycle rates) Differential Pressure Temperature (remote and direct mount) Electronic and Mechanical Level Electronic Pr
6、essure Design and specifications are subject to change without notice. 12L 6B3 6NN Registered Quality System to ISO 9001 2Registered Quality System to ISO 9001 Features and Benefits Features Pressure and Vacuum Switches Complete Product Line ? Standard models and customized specials cover pressure r
7、ange from 30 inches Hg VAC to 4000 psi. Robust Construction ? Rugged, high cycle rate tolerance, long life, not critical to vibration, high overrange and proof pressures, excellent corrosion resistance to hostile environments. Instrument Quality ?High resolution of Set Points, high repeatability, na
8、rrow dead band, negligible temperature effect. Wetted Parts ? Wide selection materials, process connection configurations and sizes. Optional “fire-safe” pressure sensor. Snap-Action Electrical Switching ? Wide selection UL Listed and CSA Certified switching elements for AC and DC service. Optional
9、“hermetically sealed” capsule for hazardous and hostile environments. Field Adjustable ? Self-locking adjustment, no special tools required. No-charge factory calibration. Cost Effective ? Simple and fast installation without special tools, long service life, no required periodic service or spare pa
10、rts. UL Listed, CSA Certified, CENELEC (BASEEFA L - cast iron Switching Element: SPDT; N - 10 amps 250 VAC; K - 15 amps 250 VAC Diaphragm o-ring (wetted) Buna-N Pressure Port: 1/4” NPT(F); B1A - aluminum; F1A - carbon steel. Notes 1. See balance of catalog for construction options. 2. Dead band valu
11、es are expressed as typical expected at mid-range for a particular model number. See dead band considerations on page 8. 3. Design and specifications subject to change without notice. thgi t rehtaeW rebmuN l e doM e l batsujdA egnaR )erusserpgni saercnI ( )cw. n i ( i s p l a c i pyT dnaBdaeD )cw. n
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13、t151 . 0A1B-4N-54K-L21 ) i sp(004foorP) i sp(002egnar revO21not s iP ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?!“ ? ? ? ? ? ? ? ? ? ? ? ? ? 5Registered Quality System to ISO 9001 Pressure and Vacuum SwitchesQuick Selection Guide - Pressure Standard Construction Housing: NN - aluminum; L - cast iron Swi
14、tching Element: SPDT; K - 15 amps 250 VAC Diaphragm o-ring (wetted) Buna-N Pressure Port: 1/4” NPT(F); B1A - aluminum; F1A - carbon steel. Notes 1. See balance of catalog for construction options. 2. Dead band values are expressed as typical expected at mid-range for a particular model number. See d
15、ead band considerations on page 8. 3. Design and specifications subject to change without notice. Proof 400 (psi) 1000 2500 Weathertight Proof 2500 (psi) 6000 6000 Explosion Proof Explosion Proof Weathertight Standard Construction Housing: NN - aluminum; L - cast iron Switching Element: SPDT; K - 15 amps 250 VAC Diaphragm o-ring (wetted) Buna-N. Piston 56 primary (wetted) diaphragm, 316SS. Pressure Port: 1/4” NPT(F); B1A - aluminum; F1A - carbon steel. Notes 1. See balance of catalog for construction options
