Updated: 28 August 2026

Published: 23 May 2019

Phastite: Permanent tube connection without welding – fast, safe and leak-free

Phastite is an innovative, permanent tube connection that swages the tube into the fitting using a special tool – with no welding, brazing or cone connection at all. The solution combines high integrity, fast installation (seconds per connection) and minimal risk of assembly errors. Phastite is developed for demanding applications and pressures up to 20,000 psi (1380 bar).

Why choose Phastite?

  • Eliminates welding: no heat, gases or fire-hazardous processes
  • Fast assembly: cuts assembly time from hours to seconds
  • High safety: a single complete fitting with no loose parts minimises errors and leaks
  • Cost savings: less installation time and fewer test rounds
  • Consistent quality: correct and leak-free connection – first time and every time
  • Designed for industry standards and demanding environments

Applications and industries

Phastite is used in instrumentation and process tubing systems where operational reliability and clean assembly are essential, including:

  • Oil, gas and petrochemicals (onshore/offshore)
  • Process industry and chemical handling
  • Energy (power plants, hydrogen/fuel cells – with the correct material spec)
  • Life science and pharma (with compatible materials and media)
  • Test and trial rigs, high-pressure applications

Specifications

  • Pressure rating: up to 20,000 psi (1380 bar) depending on size and series
  • Materials: stainless steel (typically 316/316L) and other alloys per series
  • Geometries/dimensions: selected metric and imperial tube sizes
  • Media: liquids and gases (check compatibility with regard to material/temperature)
  • Integrity: permanent swage connection, resistant to vibration and pressure surges
  • Quality and documentation: Parker-developed system of high industrial quality

At Hymatik we offer Phastite fittings and tools that can be used across a wide range of markets and applications. See more in the catalogue on pages 142-176.

Find the products here

Products at hymatik.com

Phastite

Other solutions within instrumentation/process

FAQ about Phastite

What is Phastite? A permanent swage fitting for tubing that ensures fast, safe and leak-free assembly without welding.

How high a pressure can it handle? Up to 20,000 psi (1380 bar) depending on size/series – see catalogue data for the specific size.

Which materials is Phastite available in? Typically stainless steel (316/316L) and selected alloys depending on series and application.

Can I install it myself? Yes – with the correct Phastite tool and by following the instructions. Assembly takes seconds per connection.

Is it suitable for gas? Yes – provided the correct material, size and pressure rating are chosen. Always follow the manufacturer's specifications.

How does the total cost compare with welding? Overall time, safety, quality and reduced rework make Phastite competitive and often cheaper on projects with many connections.