Mott Fast-Tracking Respiratory and Critical Device Components

Submitted on Mon, 04/13/2020
Mott flow restrictor and orifice

Mott Flow Restrictors

Mott is the expert in customized fluid control devices and works extensively with design engineers throughout every industry. Their products replace the drilled orifice, capillary tubing and needle valves that wear over time and provide inconsistent results.  Mott has over 60 years of experience tuning into critical application requirements.  Their robust flow control design integrates sintered porous metal into hardware that requires no calibration and offers repeatable flow control time after time.


  • Tamper-proof fixed flow control
  • Robust and durable materials
  • Larger surface area for low velocity flow
  • Anti-clog multi-pore technology

Design Flexibility:

Mott flow restrictors accommodate virtually any flow requirement, with ratings greater than 1 standard cubic foot per minute (scfm) to 1 x 10-6 standard cubic centimeters per second (scc/sec).  Porous metal elements encapsulated in sleeves measuring 1/4” or 1/8” outside diameter, or mounted within a variety of standard fittings are also available.


  • Flow Test on Every Part
  • Certifications
  • Cleanroom Manufacturability
  • Dedicated Engineering Services
  • Passivation

Fitting Flow Restrictors:

5100 Series, 5110 Series, 5120 Series
The same Mott flow restrictor elements available in encapsulated sleeves are also offered in standard fittings - tube union, male adapter and hex nipple.  Flow restrictor/ fitting combinations are available for virtually any flow, gas and pressure requirement.
  • Compression fittings with flow restrictor installed and calibrated
  • Materials of construction:  316L SS porous with 300 SS sleeve, 316L SS or brass fittings
  • Available in standard nitrogen flows calibrated at 30 psig to atm @ standard temperature and pressure
  • Maximum test pressure: 1500 psig
  • Flow tolerance: +/- 7.5% (higher accuracy available)


hydrophobic filters

Highly Efficient, Hydrophobic Filtration

  • Low pressure drop
  • Robust
  • Reliable
  • Reusable

Mott’s low pressure drop filters can be used as a high efficiency hydrophobic filtration of particulates and droplets. Because they are metal, they are robust, reliable, and for many applications, reusable.

Download Mott Flow Restrictors Brochure

Call us today at (855) 737-4717 to learn more, or fill out our online form and someone will get back to you.