H.O. Trerice Company
About
H.O. Trerice Company, founded in 1923 and headquartered in Oak Park, Michigan, is a century-old American manufacturer of industrial measurement and control instrumentation serving the water and wastewater, HVAC, oil and gas, food and beverage, pharmaceutical, and general process industries. The company's most extensive product line is pressure gauges, ranging from the precision 450 Series with solid-front, blow-out back construction and 0.5% accuracy, to the industrial 500X Series available in 4.5 through 12-inch dial sizes, the 575SS NIST-traceable field test gauge, the 700 Series stainless steel gauges, the 700TA sanitary gauge with 3A approval for food and pharmaceutical applications, and the 700Plus transmitter gauge combining local indication with remote signal output. Specialty gauges include ammonia and refrigerant gauges, liquid level gauges, the SG-Series sprinkler gauge for fire protection, and utility gauges (800B, 800LFB, D80) and commercial gauges (600CB, 610CB, 620B, 690). Trerice also manufactures a comprehensive range of temperature instruments including liquid-in-glass thermometers, SX9 light-powered digital thermometers, bimetal thermometers, dial thermometers with filled-system remote and direct mount options, thermowells, thermocouples, and RTDs. Their control products line encompasses Self-Op temperature regulators, pressure regulators, electronic PID controllers, electric contact controllers, and globe-type control valves in bronze, steel, stainless steel, and cast iron with pneumatic or electric actuators. The company also provides diaphragm seals for gauge protection, with wetted parts available in bronze, 316L stainless steel, Monel (NACE MR 01.75 compliant), and lead-free brass (NSF/ANSI 372 and 61 compliant). All products carry a one-year warranty and comply with ASME B40.100.
Key Products
Precision pressure gauges with solid-front/blow-out back safety construction, 0.5% accuracy, field-liquid-fillable capability, and fiberglass-reinforced polypropylene turret case for demanding process applications.
General-purpose industrial pressure gauges available in 4.5 to 12 inch dial sizes with 0.5% accuracy and cast aluminum cases for plant and process monitoring.
Stainless steel field test pressure gauge with NIST-traceable certification for calibration verification and field accuracy testing.
Stainless steel-cased industrial pressure gauges for corrosive environments and chemical process applications.
3A-approved sanitary pressure gauge designed for food, beverage, and pharmaceutical applications requiring hygienic instrumentation.
Pressure gauge with integrated transmitter output combining local indication with remote signal transmission for process monitoring systems.
Specialty pressure gauge designed for fire protection and sprinkler system monitoring applications.
Specialty pressure gauges with ammonia and refrigerant scales for HVAC and refrigeration system monitoring.
Pressure gauges calibrated in altitude or liquid level units for monitoring tank levels and storage vessel contents.
Economically-priced pressure gauges for general-purpose applications available in dry and liquid-filled configurations with 1.0 to 1.6% accuracy ranges.
Pressure gauges designed for HVAC and construction applications with 1.0% accuracy and cost-effective construction.
Industrial thermometers using liquid expansion for accurate temperature measurement, considered the industry's most specified liquid-in-glass thermometer line.
Light-powered electronic digital thermometers providing high-accuracy temperature readings with no battery replacement required.
Temperature instruments using bimetallic strip expansion for direct-reading industrial temperature measurement with robust construction.
Filled-system temperature indicators available in remote and direct mount configurations for process temperature monitoring.
Protective wells designed to shield thermometer bulbs and sensors from process conditions while allowing instrument removal without process shutdown.
Electronic temperature sensors for precise temperature measurement in industrial process applications.
Self-contained temperature regulators requiring no external power source, using process fluid energy for temperature control valve actuation.
Self-actuating pressure control valves that maintain set downstream pressure in process piping systems.
Proportional-integral-derivative electronic controllers for precise temperature and pressure process control loops.
Globe-type control valves available in bronze, steel, stainless steel, and cast iron with pneumatic or electric actuators for flow regulation in process systems.
Pressure gauge isolation devices that protect delicate gauge mechanisms from corrosive, viscous, or high-temperature process fluids while transmitting accurate pressure readings.
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