About Aquinox Stainless®

We have been manufacturing our products to an internal quality standard since 2012, known as Aquinox Stainless®.

To be badged as “Aquinox Stainless®”, a product must meet all of the following criteria:

• Have been manufactured from LDX 2101 Duplex stainless or 316L stainless steel (materials applicable to certain diameters)
• Have been manufactured to BSEN 12897:2016 A1:2020
• Have been manufactured to our current KIWA Reg4 or WRAS approval standards
• Have been manufactured by the expert engineers at Newark Cylinders
• Be covered by the Newark Cylinders workmanship and customer service guarantee
• Have undergone 5 individual quality checks at key points in the manufacture:
  • Specification conformity 1
  • Internal clearance check
  • Specification conformity 2
  • Pressure test
  • Final cosmetic check

Products include:

• All bespoke Stainless Steel Cylinders/Thermal Stores/Buffer Vessels
• Super Cylinders (HG Series) – designed by Heat Geek
• Heat Geek Mini Stores
• Aquinox Stainless® Heat Pump Buffer Vessels

Aquinox Stainless®: Legally Protected and Quality Assured

At Newark Cylinders, our brand Aquinox Stainless® represents the pinnacle of our manufacturing excellence. We proudly hold a registered trademark (®) for Aquinox Stainless® under the Trade Marks Act 1994 of Great Britain and Northern Ireland. This registration guarantees our sole ownership and protects the integrity of our brand, ensuring that every product labelled with Aquinox Stainless® upholds the high standards and reliability that our customers expect.