Product Description
United Electric H100-192 Pressure Switch: Technical Introduction
1. Product Overview
The H100-192 is a mechanical pressure switch from United Electric Controls' (UE) flagship 100 Series, renowned for ruggedness and reliability in industrial alarm, safety shutdown, and process control applications. Designed to operate independently of control systems, it eliminates risks from cyber vulnerabilities or communication failures . Key features include:
SPDT (Single Pole Double Throw) switching for flexible "normally open" or "normally closed" configurations.
NEMA 4X/IP66-rated enclosure with epoxy-coated cast aluminum housing, resistant to corrosion, dust, and moisture
Weld-sealed 316 stainless steel diaphragm ensuring leak-free operation in high-pressure/vacuum environments
Detailed Photos
2. Technical Specification
Product Parameters
Parameter |
Value |
Adjustable Set Point Range |
1.0-20.7 bar (15-300 psi) |
Maximum Operating Pressure (Over Range) |
103.4 bar (1,500 psi) |
Proof Pressure (Withstand) |
172.4 bar (2,500 psi) |
Deadband (Hysteresis) |
0.2-1.2 bar (3-18 psi), adjustable |
Note: Deadband varies with set point; wider deadbands suit pump cycling applications, narrow bands suit precision control.
2.2 Environmental Durability
Temperature Range:
Operating: -40°C to 71°C (-40°F to 160°F)
Storage: -54°C to 71°C (-65°F to 160°F)
Resistance to Vibration/Shock:
2.5G vibration (5-500 Hz) without set point drift.
15G shock (10 ms impact) while maintaining calibration .
2.3 Mechanical & Electrical Design
Pressure Connection: 1/2″ NPTF (National Pipe Thread Fuel)
Diaphragm Sensor: Large-diameter (0.72") 316 stainless steel weld-sealed diaphragm, suitable for viscous or slurry fluids and cleanable per NACE MR-0175 standards
Electrical Contacts:
SPDT switch rated for 15A at 250/480V AC and 0.5A at 125V DC .
Prevents arcing in inductive loads (e.g., motors, solenoids).
3. Design Advantages
3.1 Safety & Reliability
Set Point Locking Mechanism: Prevents accidental adjustment after calibration .
Failsafe Operation: Functions without external power or software dependencies .
Overpressure Protection: Withstands 689.5 bar (10,000 psi) burst pressures without diaphragm rupture .
3.2 Industrial-Grade Construction
Diaphragm Seal: Eliminates O-rings prone to extrusion under high cycles.
Epoxy Coating: Resists chemicals, UV degradation, and salt spray
Large Sensing Port: Reduces clogging in oily/dirty media (e.g., hydraulic systems, fuel trains) .
4. Applications
Typical use cases include:
Rotating Equipment Protection:
Pump jacking control (low-pressure cutoff).
Compressor lubrication oil pressure monitoring.
Energy & Process Industries:
EH (Electro-Hydraulic) oil pressure safety in turbines .
Heat tracing line pressure alarms.
Fire Suppression & Fuel Systems:
Gas train pressure switching in boilers .
5. Installation & Calibration
5.1 Mounting Guidelines
Orient switch vertically to prevent debris accumulation in the sensing port.
Use thread sealant on NPTF ports .
5.2 Calibration Procedure
Isolate pressure source and vent the switch.
Adjust set screw clockwise (↑ pressure) or counterclockwise (↓ pressure).
Apply test pressure; verify switch actuation via multimeter.
Secure locking nut to prevent drift.
Note: Annual recalibration recommended in high-vibration environments.
6. Certifications & Compliance
Global Approvals: ATEX, IECEx, CSA, UL .
NEMA 4X/IP66: Validated for outdoor/ washdown areas .
Hazardous Locations: Class I Div 1/2; Zone 1/21 .
7. Ordering Information
Base Model: H100-192
Options:
-M201: Special calibration for oil/petrochemical service .
-0140: Explosion-proof certification upgrade.
Part Number Example: H100-192-M201/0.3-2.1bar (custom range variant) .
8. Comparison vs. H100 Series Variants
Model |
Set Point Range (bar) |
Deadband (bar) |
Pressure Connection |
H100-190 |
0.3-2.1 |
0.1-0.2 |
1/2″ NPTF |
H100-192 |
1.0-20.7 |
0.2-1.2 |
1/2″ NPTF |
H100-193 |
2.1-34.5 |
0.3-2.4 |
1/2″ NPTF |
H100-520 |
0.07-1.7 (vacuum) |
±0.01 |
1/4″ NPTF |
Conclusion
The UE H100-192 pressure switch combines electromechanical simplicity with extreme durability, making it ideal for critical industrial safety systems. Its 316 stainless steel sensor, wide calibration range, and NEMA 4X rating ensure longevity in harsh environments like oil/gas, power generation, and chemical processing. For OEMs and plant engineers prioritizing fail-safe operation and minimal lifecycle costs, the H100-192 remains a benchmark in pressure switching technology.
Company Profile
KeRui (weifang) Automation Equipment Co., Ltd.specializes in industrial automation instrument development, production and sales, technical services, and supportingequipment supply of specialized companies. The main products are flow meters, level meters, temperature meters,pressure meters, electrical meters, thermal intelligent meters, programmable controllers (PLC)DCS distributed control systems,and eight series of more than 1,000 specifications. Its products and technologies are widely used in electric power, metallurgy, petrochemicals, environmental protection, plastics, food, printing, tobacco,textile, dyeing, and other felds.
Company Achievements
KeRui (Weifang) Automation Equipment Co. Ltd. Has maintained a cooperatve relationship with Rosemount for 15 years, and our purchase quantity has reached 20,000 units.
We supplied the tuning fork level gauge to the Rosemount factory and have been well received by the Beijing factory. We have cooperated with Yokowaga and maintained a cooperative relationship for 8 years, and our purchase quality has reached 7000 units.
The companies we have cooperated with:
1. Awarded "Outstanding Supplier by Yanchang Petroleum in 2008
2. In December 2012, our company was awarded the "Excellent Equipment Service Award" for the expansion project of units 6 and 7 of the Guangdong Guohua Yuedaishan Power Plant
3. Awarded "Outstanding Supplier by Yaxing Group in 2013
4.200 transmitters for Haihua Group's ethylene debottlenecking transformation project in 2015.
5. In 2018, we were rewarded as a National Nuclear Power Instrumentation Industry Measurement and Testing Alliance member.
6.160 transmitters and 20 electric autuators for the Shandong Laigang Yongfeng Steel expansion project in 2019
7.In 2022, Jinneng Chemical (Qingdao) Co., Led/ Jinneng 2x450,000 tons/ year high-performance polypropylene project (newly built) equipped 460 transmitters from our company.
8. In 2022, Shandong Qinghe Chemical Technology Co., Ltd.s hydrogen peroxide method epoxy propane device and supporting hydrogen peroxide device expansion project used 253 pressure transmitters.
9.In 2022, the Wanhua Chemical HTN project NPG installed 320 transmitters and 50 sets of valve positioners.
|
Packaging & Shipping
The packaging and transportation of instrumentation in global trade hinges on a synergy of advanced materials, rigorous testing, regulatory compliance, and smart logistics. By adopting hybrid structural designs, leveraging real-time monitoring technologies, and prioritizing sustainability, exporters can ensure the safe, efficient, and cost-effective delivery of precision instruments. Continuous innovation in materials science and IoT integration will further redefine industry standards, enhancing resilience in an increasingly interconnected market.
FAQ
Q: How long will it take you to give me the reply?
A: We will reply to you as soon as we see the information
Q: What is the delivery time?
A: Our delivery time is within 3- 7 days after we get your payment; for large qty mass orders, the time should be confirmed again for you
Q: How about your package?
A: Do not worry about the package. We have a lot of experience in packing, and all our packages are wooden case packages.
Q: How about the payment terms?
A: You can choose T/T.
Q: Do you provide samples?
A: Yes, we have materials in stock to help you get the samples as soon as we can.
Q: What is the MOQ?
A:1PC.
Q: Can I get a lower price if I order large quantities?
A: Yes, cheaper prices with larger orders