Twin Ferrule Fittings u2-Lok

Schwer Fittings GmbH

  • Stainless steel Twin Ferrule Fittings
  • Suitable for liquid and gas applications
  • Wide range of metric and imperial sizing available.
  • Pressure rated to 700 Bar, DNV- GL, Temperature range -60° C to +300° C
  • European manufactured and distribution center. Established global supply chains.

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Twin Ferrule Fittings u2-Lok

  • Functionally matched tolerances and consistent surface finish ensure leak-free pipe connections in both the high pressure and vacuum environments with Twin Ferrule Fittings.
  • Vibration and pressure surges are largely absorbed by the design of the clamping / wedge ring structure without any leakage.
  • Under heavy vibration the couplings maintain security at high pressures or vacuum. This is achieved by 4-efficient construction details:
    • The clamping ring with its spring-like formation dampens vibrations from the pipe network. Furthermore, it prevents transmission of the tightening torque of the nut on the wedge ring.
    • The forward wedge ring seals the pressing surfaces between fitting and pipe. Due to the taper in the housing the tapered ring is pressed onto the pipe, so that a constriction arises, whereby the tube is clamped pressure tight.
    • The silver-plated internal threads of the union nut is used to prevent seizure. This allows the multiple use of the same fitting and are therefore easy to detach.
    • A longer tube guide ensures an accurate tight fit between tubing and the housing, manufacturing tolerances ensure reliable centering of the pipe.

Key features

  • Using high grade stainless 1.4401; 1.4404 steels a long 'life' in an aggressive environment is ensured
  • Easy installation
  • Great variety in metric and imperial range
  • Quality surface roughness due to modern manufacturing technology
  • Type of pre-assembly: no pre-assembly necessary
  • Repeat assembly: 10 times
  • Media application: fluids, inert and conditioned gases
  • Thermal limits:  -60° C to +300° C
  • Construction mass / manufacturing standard: own factory standard
  • Pressure ranges: up to 700 bar
  • Available sizes:
    • From 3 mm to 25 mm
    • From 1/8' to 1'
  • Material: 1.4404 / 1.4435
  • Degree Cone: 40°
  • Union nut thread type: UNF
  • Coating union nut:  silver coated
  • Width across flats of union nut: metric or imperial
  • Tube type / specification:
    • sf 1.4435 seamless drawn, soft annealed
    • Metric or imperial
  • Structure/function of rings:  twin ferrule, 2 rings system

Application areas

  • Within Electrolyser applications.
  • Connection of cylinders in distribution systems.
  • Within hydrogen Fuel Filling stations.
  • Within compressors and compressor installations
  • Suitable for use throughout the hydrogen supply chain, Hydrogen generation, through transportation and to end user.

Contact us

  • Schwer Fittings is your specialist supplier of stainless steel pipe connection technology. Interested? Contact us by filling in the contact request form.
Brand Schwer Fittings
Max Pressure (in bar) 700
Manufacturing Readiness (MRL) 0
Technology Readiness (TRL) 0
Max Ambient Temperature (in °C) 300
Min Ambient Temperature (in °C) -60
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99% of all inquiries get answered within 5 days. Your inquiry will be sent immediately to the right person within the vendor organisation.

By ticking the checkbox, you consent to the collection and storage of the data you have provided for the purpose of contacting and answering your request in accordance with our Privacy Policy. You can revoke your consent at any time by sending an email to bye-bye@hyfindr.com.

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