Flowmeter Model ESF

The Thomson Single Flow (ESF) Flowmeter is designed for applications where uninterrupted seal water flow is required. Adequate seal water flow for cooling and lubrication result in water savings, energy savings, reduced maintenance, and extended life of seals. The Thomson ESF single flow meter is an excellent choice for all styles of compression packing, single mechanical seals, FLOW PRO™ sealing systems – for applications where gland water reduction and minimizing product dilution is essential. The sturdy modular construction and many accessories make it very flexible.


  • Reliable operation
  • Solid construction
  • Excellent corrosion and heat resistance
  • Detachable metering scale
  • Alarm ready
  • Clog resistant flow control valve
  • 3 connector options
  • Mounting bracket
  • Built-in tube cleaner
  • PSU (polysulphone) tube – freeze resistant

Ideal for

  • FLOW PRO™ sealing system
  • Single mechanical seals
  • Gland packings
  • Pressure, Max: 435 psi @ 120°F (49°C)
  • Temperature, max: POM body / PSU tube: 212°F (100°C)
  • PVDF body / PSU tube: 266°F (130°C)
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