
Selection
Storz coupling sizes: DN and lug distance
Why two numbers describe a Storz coupling, which heads connect to each other, which DN fits which lug distance, and how to read our article numbers.

Storz couplings are symmetrical: two identical heads with lugs connect with a quarter turn, without male and female parts. The size of a Storz head is set by the distance between the lugs. DN 19–100.
Delivery across Bulgaria by Econt and Speedy and across the EU — delivery terms.
We can assemble the hose with couplings and pressure test it — service.
Each size is a separate item with its own article number. Searching the site by article number takes you straight to the row.
| DN, mm | Lug distance, mm | Article | Weight, kg |
|---|---|---|---|
| 19 | 31 | 243019031 | 0.077 |
| 25 | 31 | 243025031 | 0.078 |
| 25 | 44 | 243025044 | 0.157 |
| 25 | 66 | 243025066 | 0.287 |
| 32 | 52 | 243032052 | 0.165 |
| 32 | 66 | 243032066 | 0.303 |
| 38 | 52 | 243038052 | 0.148 |
| 38 | 66 | 243038066 | 0.277 |
| 50 | 66 | 243050066 | 0.271 |
| 50 | 81 | 243050081 | 0.384 |
| 50 | 89 | 243050089 | 0.412 |
| 52 | 66 | 243052066 | — |
| 63 | 66 | 243063066 | 0.281 |
| 63 | 81 | 243063081 | 0.38 |
| 63 | 89 | 243063089 | 0.428 |
| 75 | 81 | 243075081 | 0.416 |
| 75 | 89 | 243075089 | 0.411 |
| 100 | 114 | 243100114 | 1.071 |
| 100 | 133 | 243100133 | 1.062 |

Selection
Why two numbers describe a Storz coupling, which heads connect to each other, which DN fits which lug distance, and how to read our article numbers.

Storz head × ribbed hose tail, for suction and delivery hoses
ID 19–150 mm

Storz head × smooth hose tail with safety ring
ID 50–110 mm

Storz head × barbed hose tail, for suction and delivery hoses
ID 52–150 mm
Send us the sizes and quantities — we will reply with availability and lead time.