Updated: 16 October 2025

Published 23 May 2019

Parker Parflange F37 – The weld-free tube system

Parflange F37 from Parker Hannifin is a high-quality tube system for fast, flexible and safe tube assembly – without welding. The system is used globally in demanding applications and is suitable for both low and high pressure.

• Dimensions: up to 10”
• Pressure: up to 420 bar
• Typical industries: industry, offshore and marine
• Weld-free: save time, costs and documentation
• Safe: high mechanical stability and leak-free sealing
• Flexible: easy modification, expansion and maintenance

At Hymatik we offer Parflange F37 as well as flanging machines – both for purchase and rental. If you need advice or a price, call 63 12 83 00 or write to PS@hymatik.com.

Why choose Parflange F37?

Faster installation and lower costs

• Up to 5x faster assembly process than welded tube systems
• No welding, no X-ray inspection and less cleaning
• Easier to dismantle, modify and prefabricate runs

High operational reliability and cleanliness

• Leak-free assembly with high mechanical stability
• Cleaner installation, which reduces the risk of contamination in the system

Flexible in operation and maintenance

• Easy to add or move components
• Less dependency on welding skills and welding certificates on site

Applications

• Hydraulic systems in the manufacturing industry
• Offshore and marine, where welding is difficult or time-critical
• Test and pressure systems requiring frequent changes
• Projects with short commissioning times and tight shutdown windows

How Parflange F37 works

The Parflange machine forms the end of the tube (orbital tube forming) and creates a controlled flange connection that clamps and seals against the mating flange. The result is a robust, repeatable and weld-free connection that can handle high pressures and vibrations.

Products and machines

• Parflange F37 fittings and flange system: See the products in our webshop
• Parflange machines (purchase or rental): See the machines here
• Questions about Parflange F37: call 63 12 83 00 or PS@hymatik.com

Need help with assembly?
See the assembly instructions for Parflange F37:

Frequently asked questions (FAQ)

What are the advantages compared to welded tubes? Faster installation, fewer quality inspections (e.g. no X-ray), cleaner assembly and easier modification.

Which pressures and dimensions are supported? Up to 420 bar and up to 10” tube dimensions.

Which environments is F37 suited to? Industry, offshore and marine – wherever high operational reliability, cleanliness and fast commissioning are required.

Can I rent flanging equipment? Yes. Hymatik offers Parflange machines for both purchase and rental. See the machines here.

Parflange F37