NORRES CONNECT KAMLOK ALU 253
Aluminium camlock coupling – quick connection for silos and tank systems
The NORRES CONNECT KAMLOK ALU 253 is a lightweight and durable aluminium coupling designed for reliable hose connections during filling and emptying of silos, tanks, and tank trucks. It ensures fast, tight, and tool-free coupling for the transfer of dry bulk materials or liquids.
Properties and design
- Made of aluminium – low weight and good corrosion resistance.
- Fluted hose tail for secure fitting with band clamp (e.g. CLAMP 211).
- Quick camlock system according to standard Type C (female) and Type E (male).
- Replaceable black NBR sealing ring available as spare part.
- Not suitable for explosive fluids (group 1) and not covered by the Pressure Equipment Directive.
- REACH compliant – see manufacturer’s technical information.
Applications
Ideal for industrial and transport systems requiring frequent connection and disconnection, such as silo conveying, pneumatic transport, and tanker loading or discharge. Compatible with CONNECT 229 clamp assemblies and NORRES hoses with smooth outer wall.
Technical note
The camlock system is widely used in conveying and process industries where quick and safe hose coupling is essential. Aluminium offers a lightweight and cost-efficient solution for non-corrosive media such as air, powders, granulates, and neutral liquids. In ATEX installations, electrical conductivity and potential equalisation must always be verified separately.
Recommended accessories
- CLAMP 211 – band clamp for hoses with smooth outer wall.
- CONNECT 229 – coupling assembly for AIRDUC® and PROTAPE® hoses.
Need help choosing the right coupling?
Contact us for advice on selecting the correct camlock type, clamp, and compatible NORRES hoses for your installation.
FAQ: NORRES CONNECT KAMLOK ALU 253
What is the KAMLOK ALU 253 used for?
For quick connection of hoses to silos, tanks, and tank trucks for conveying dry or liquid media.
Are different versions available?
Yes, the series includes female parts (Type C) and male parts (Type E) with fluted hose tail and replaceable NBR seal.
Can it be used in ATEX zones?
Only after a dedicated risk assessment and when potential equalisation is ensured.
What materials are available?
This version is aluminium; other materials such as brass, stainless steel, or plastic are also available.
How is it attached to the hose?
By means of a clamp (e.g. CLAMP 211) around the fluted hose tail – providing a tight and secure fit.
Related links
Technical specifications – CONNECT KAMLOK ALU 253
| Component | Nom. size (mm) | Weight (kg/pcs) | For hose I.D. (mm) | Order No. |
|---|---|---|---|---|
| Spare part – NBR seal (black) | ||||
| - | 50 | 0.018 | - | 253-0050-8068 |
| - | 100 | 0.034 | - | 253-0100-8068 |
| Female coupling – Type C (suitable for CONNECT 229) | ||||
| Female coupling | 50 | 0.44 | 51 | 253-0050-8212 |
| Female coupling | 80 | 0.93 | 76 | 253-0075-8212 |
| Female coupling | 100 | 1.29 | 102 | 253-0100-8212 |
| Male coupling – Type E (suitable for CONNECT 229) | ||||
| Male coupling | 50 | 0.38 | 51 | 253-0050-8412 |
| Male coupling | 80 | 0.67 | 76 | 253-0075-8412 |
| Male coupling | 100 | 1.05 | 102 | 253-0100-8412 |
All data measured at 20 °C. Technical modifications reserved.
