UE 120 Series Explosion-Proof Pressure and Temperature Switch (Models J120, J120K, H122K, B122, E120)

UE 120 Series Explosion-Proof Pressure and Temperature Switch (Models J120, J120K, H122K, B122, E120)

Product Introduction

The UE 120 Series Explosion-Proof Pressure and Temperature Switches are designed for critical safety applications in hazardous environments, offering reliable protection for equipment, processes, and personnel. With worldwide approvals (cULus, ATEX, IECEx) and SIL2 certification, these switches excel in potentially explosive or corrosive atmospheres. The series features adjustable set points, multiple sensor materials (including Hastelloy and Monel ), and versatile output configurations, making them ideal for chemical, petrochemical, refinery, and oil & gas industries.

Product Features

Explosion-Proof Compliance:

Certified for hazardous locations: cULus, ATEX, IECEx; optional approvals for Russia, China, India, etc.

SIL2 compliant per IEC 61508:2010 for safety-critical systems.

NACE MR0175 compliance for corrosive oil & gas applications.

Flexible Sensing & Adjustment:

Adjustable set point range: 5–50 psid (0.3–3.4 bar); deadband: 0.2–2.2 psi.

Internal hex screw or external calibrated dial adjustments with tamper-resistant covers.

Robust Construction:

Working pressure: 30 "Hg to 1200 psi; proof pressure: 2500 psi.

Sensor materials: Hastelloy , Monel , and other alloys for corrosive media.

Electrical & Mechanical Design:

SPDT, DPDT, or dual SPDT outputs; optional hermetically sealed micro-switches.

Integral cover lock and heat tracing options for temperature models.

Environmental Tolerance:

Ambient temperature: -58 to 160°F (-50 to 71°C); storage: -65 to 160°F (-54 to 71°C).

Application Versatility:

Suitable for pressure, vacuum, differential pressure, and temperature monitoring in harsh industrial settings.

Xi'an Kacise Optronics Co.,Ltd. is a professional manufacturer of measuring instruments , located in China xi’an City. Since 2008, Xi'an Kacise focused on the development and production of pressure, level and flow measuring instruments .

We have been specializing in manufacturing pressure, level and flow measuring instruments and related products for 10 years. Based on experienced technical and management personnel, through efforts of our entire staff, we have become a professional measuring instrument manufacturer and solution provider. And we are continuously trying to improve product quality.

Xi'an Kacise is qualified with ISO 9001-2008, GJB 9001B-2009, CE, intrinsic safety explosion-proof and isolated safety explosion-proof certificates, etc. which ensure that our products comply with international standards.

Kacise sensors have already been exported to America, Spain, Australia, Chile and 20 other countries and regions, and received many favorable feedbacks. Our overseas distributers are also increasing. We regard “reasonable prices, efficient production time and good after-sales service” as our tenet, and hope to cooperate with more customers for mutual development.

Our goal is simple: to sell the best products at the best prices, and provides industry-leading customer service. We personally get to know each of our customers, and we know how to discover the most valuable part of our business , to help others achieve their goals.