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UE 120 Series Pressure Switch

UE 120 Series Pressure Switch

• Meets global requirements with worldwide certifications and approvals 
• Increase flexibility with multiple outputs 
• Easy installation via dual electrical conduit openings 
• Simplify wiring through easy-to-access terminal block 
• Match process requirements with an assortment of available sensors 
• Improve accuracy with ultra-low pressure ranges



As safety requirements become more stringent, the determining factor in specifying an industrial pressure, differential pressure and/or temperature switch rests upon that switch protecting equipment, processes and personnel. Meeting hazardous location requirements through worldwide approvals and certifications, UE's 120 Series is the choice where potentially explosive or highly corrosive atmospheres exist.  


The 120 Series offers a variety of pressure, vacuum, differential pressure and temperature ranges, as well as process connections, wetted materials and sensor types. With a common flexible platform, models can quickly be adapted at the factory for special requirements, such as ranges, process connections and electrical ratings. Typical industries using 120 Series switches include chemical, petrochemical, refinery, oil and gas production and transmission, and pharmaceuticals.


• Standard product approvals include cULus, ATEX & IECEx

• Optional approvals for Russia, Ukraine, China, India and Korea

• Many models compliant to NACE MR-0175

• Internal adjustment hex or external adjustment via calibrated dial(s) with tamper-resistant cover

• Integral cover lock

• SPDT, DPDT or dual SPDT output

• Wide variety of sensor materials

• Optional Hastelloy® and Monel® sensor material for corrosive media

• Wide adjustable deadband models

• Flush mount sensors

• Heat tracing temperature models

• Most models available for immediate delivery

Options for temperature models


Option Replacement Number D escription


W027 SD6213-27 1⁄2” NPT w/ 3⁄” bushing

W045 SD6213-45 3⁄” NPT

W051 SD6213-51 1⁄” NPT

304 Stainless Steel

W028 SD6213-28 1⁄” NPT w/ 3⁄” bushing

W046 SD6213-46 3⁄” NPT

W050 SD6213-50 1⁄” NPT


For all bulb & capillary switches, except Models 13273 and 13321


W075 SD6225-75 3⁄4” NPT bushing adapter, 4” BT

W191 SD6225-191 1⁄” NPT, 4” BT

W118 SD6225-118 3⁄” NPT bushing adapter, 7” BT

W192 SD6225-192 1⁄” NPT, 7” BT

316 Stainless Steel

W076 SD6225-76 3⁄” NPT, 4.5” BT

W193 SD6225-193 1⁄” NPT, 4.5” BT

W119 SD6225-119 3⁄” NPT, 7.5” BT

W177 SD6225-177 1⁄” NPT, 7.5” BT

For all immersion stem switches, except Models 13272 and 13322

W139 SD6225-139 3⁄4” NPT X 1-23/32” BT, BRASS

W140 SD6225-140 3⁄” NPT X 1-23/32” BT, 316 ST/ST

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