120 Series Overview

Rugged, Explosion-proof Pressure, Vacuum, Differential Pressure and Temperature Switches

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.

 

 

 

 

 Overview

Features

Drawings

Class 1, Divisions 1 & 2, Zone 1

UL listed, cUL certified, ATEX flame-proof & CE (LVD, PED) compliant; other worldwide hazardous location approvals

    available

Dual electrical conduit openings provide mounting flexibility while terminal block provides ease of wiring

SPDT, DPDT, or dual SPDT switch output

  of pressure sensor materials, including welded stainless steel diaphragms and bellows

Internal or external set-point adjustment

Heat trace & freeze protection temperature models

Adjustable set-point ranges:

         Pressure & Vacuum: 30 ”Hg Vac to 6000 psi

             1 to 413,7 bar

         Water Column: 300 “wc Vac to 250 “wc

              -746,7 to 622,3 mbar

        Differential Pressure: 0.2 “wcd to 500 psid

              0,5 mbar to 34,5 bar

        Temperature: -180 to 650 ºF

              -117.8 to 343.3 ºC

 

  Standard product approvals include cULus,

     ATEX & IECEx

  Optional approvals for Russia, Ukraine and

    China

  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!

120 Series Customer Drawings

 

12128 - Type B121, Models 120 to 121

12144 - Type B122, Models 120 & 121

12116 - Type C120, Models 120 & 121

12121 - Type E121, Models 2BS to 8BS

12145 - Type E122, Models 2BS to 8BS

12117 - Type F120, Models 1BS to 8BS

12126 - Type H121, Models 126 to 164 &

            S126B to S164B

12123 - Type H121, Models 270 to 274

12125 - Type H121, Models 358 to 376

12155 - Type H121, Models 450 to 454

12154 - Type H121, Models 550 & 555

12122 - Type H121, Models 612 to 614

12464 - Type H121, Models 701 to 705

12459 - Type H121K, Models 147 & 157

12124 - Type H121K, Models 456 to 559

12149 - Type H122, Models 123 to 164 &

            S126B to 164B

12147 - Type H122, Models 270 to 274

12146 - Type H122, Models 358 to 376

12163 - Type H122, Models 450 to 454

12156 - Type H122, Models 552 to 555

12150 - Type H122, Models 612 to 614

12465 - Type H122, Models 702 to 705

12148 - Type H122K, Models 456 to 559

12461 - Type H122K. Models 147 & 157

12951 - Type H122P, Models 126 to 164

12953 - Type H122P, Models 270 & 274

12954 - Type H122P, Models 358, 361 & 376

12956 - Type H122P, Models 450 to 454

12831 - Type H122P, Models 5355 & 5835 (obsolete)

12957 - Type H122P, Models 550 to 555

12955 - Type H122P, Models 612 & 614

12107 - Type J120, Models 126 to 164 &

            S126B to S164B

12945 - Type J120, Models 171 to 174

12850 - Type J120, Models 183 to 186 & 483 to 486

12844 - Type J120, Models 188 & 189, 488 & 489

12453 - Type J120, Models 190 to 194 & 490 to 494

12108 - Type J120, Models 270 & 274

12109 - Type J120, Models 356, 358, 361 & 376

12294 - Type J120, Models 450 to 454

12958 - Type J120, Models 520 to 525

12962 - Type J120, Models 530 to 535

12295 - Type J120, Models 550 to 555

12987 - Type J120, Models 560 to 564

12988 - Type J120, Models 565 to 567

12111 - Type J120, Models 612 & 616

12141 - Type J120, Models 680

12122-2 - Type H121, Model 15875

12452 - Type J120, Models 701 to 705

12458 - Type J120K, Model 367

12456 - Type J120K, Models 147 & 157

12752 - Type J120K, Models 36 to 39

12110 - Type J120K, Models 455 to 457 & 559

13418 - Type J120K, Models 540 to 543

13419 - Type J120K, Models 544 to 548

12834 - Type J120X, Models 5355 & 5835 (obsolete)

12452-3 - Type J120, Models 15834 to 15839

12452-2 - Type J120, Model 15622

The Leaders in Safety, Alarm & Shutdown

Protecting People, Processes & Equipment.

Our reputation for dependable, reliable products is a result of innovative design, superior manufacturing techniques, and a corporate focus on uncompromising quality.

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