Color Marking Rings for Test Couplings and Test Hose Assemblies (Test 20 and Test 15)

Hydraulic test couplings and test hose assemblies of the STAUFF Test 20 and STAUFF Test 15 series made of steel and stainless steel can optionally be equipped with color marking rings.

Typical areas of application:

• distinguish between hydraulic circuits
• distinguish pressure ranges (suction line, pressure line, return line, etc.)
• distinguish between test intervals and test times
• distinguish between types of media (oil, gas, water, etc.)
• distinguish between types of couplings (ball check or poppet valve)
• Marking of suitable positions for sampling
• Marking of suitable positions for filling or venting the system

If required, the color marking rings can be applied by the user very easily, flexibly and without the need for tools. Retrofitting on already installed couplings and test hose lines is also possible without any problems.

The rings are placed in the standard groove of the knurled protection and connection caps of test couplings and test hose connectors. The high resistance of the knurled caps made of steel and stainless steel to environmental influences is not limited by the use of the rings at all.

The color marking rings are manufactured from thermoplastic polyurethane (TPU). TPU is a lightweight, elastic material with very good abrasion and wear resistance, paired with high resilience.