
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 19–150.
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 | 240019031 | 0.093 |
| 25 | 31 | 240025031 | 0.094 |
| 25 | 44 | 240025044 | 0.141 |
| 25 | 66 | 240025066 | 0.345 |
| 32 | 66 | 240032066 | 0.357 |
| 38 | 52 | 240038052 | 0.197 |
| 38 | 66 | 240038066 | 0.377 |
| 38 | 81 | 240038081 | 0.468 |
| 52 | 66 | 240052066 | 0.364 |
| 52 | 81 | 240052081 | 0.488 |
| 63 | 81 | 240063081 | 0.5 |
| 63 | 89 | 240063089 | 0.699 |
| 70 | 89 | 240070089 | 0.72 |
| 75 | 81 | 240075081 | 0.531 |
| 75 | 89 | 240075089 | 0.71 |
| 80 | 89 | 240080089 | 0.781 |
| 100 | 115 | 240100115 | 1.181 |
| 100 | 133 | 240100133 | 1.628 |
| 110 | 133 | 240110133 | 1.671 |
| 150 | 133 | 240150133 | 3.125 |

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

Storz head × barbed hose tail, for suction and delivery hoses
ID 52–150 mm

Storz head × female thread
ID 19–100 mm
Send us the sizes and quantities — we will reply with availability and lead time.