Fluid Components International LLC

Fluid Components International LLC (FCI) is a sensor and instrumentation manufacturer based in San Marcos, California. Its aerospace division, FCI Aerospace, produces flow, temperature, liquid level and pressure sensors for on-board aircraft installations, built to the specifications of aircraft and sub-system manufacturers. The wider company, with almost 60 years of experience according to its site, is best known for thermal dispersion flow meters, flow switches and level switches used in industry.

Aerospace products

• AS-FS flow switches: thermal dispersion flow detection with no moving parts, for air or liquid flows, with a hermetically sealed 316 stainless steel electronics enclosure
• AS-LLE liquid level sensor: a miniature single-point sensor in titanium Ti 6Al-4V, installed inside tanks, reservoirs, sumps and gearboxes on fixed wing and rotary aircraft, rated from minus 55 to 205 degrees C
• AS-PS pressure switches: a hermetically sealed sensing element for pipes, ducts, tanks and gearboxes, qualified to MIL-STD-130, MIL-STD-810, MIL-STD-889 and MIL-STD-461/462
• AS-TE temperature sensors: compact platinum RTD sensors for piping and ducting, measuring from minus 62 to 232 degrees C
• Built-to-specification sensors as well as COTS solutions

Aircraft applications

• Commercial aircraft: pack air, avionics and passenger low air flow alarms, cooling effects detectors, bleed air, cabin temperature, potable water and wash reservoirs
• Military aircraft, rotary aircraft, space, military vehicles and marine markets, including gearbox oil level detection

Quality and approvals

• ISO 9001 and AS9100 certified, with quality programs reviewed by major airframe manufacturers and contractors
• Quality system based on ISO 9001, AS9100, the quality requirements of 14 CFR 21.303 and an FCI PMA quality manual
• A NIST traceable flow calibration laboratory with 19 flow stands, ISO/IEC 17025 traceable, certified to standards including MIL-STD 45662A

Industrial and nuclear

• Thermal dispersion mass flow meters for air and gas, flow switches, level switches and VORTAB flow conditioners
• Level, flow and temperature instruments for nuclear power plants, supplied since 1978

Company facts

• Headquarters at La Costa Meadows Drive, San Marcos, California, with subsidiaries in Europe and China providing service and depot level repair
• More than 50 local sales organizations and about 600 sales representatives, according to the company
• Acquired by DwyerOmega, a portfolio company of Arcline Investment Management, on 21 November 2024