3" Single Hose Clamp (E19-36): Heavy-Duty Connections
By Maintenance Depot Plumbing Team · Last reviewed
Quick answer
The E19-36 single hose clamp fits hoses from 64mm to 76mm (about 3"), for large water and trash pumps, construction dewatering and 3" flexible drain couplings.
Large hoses and flexible pipe couplings need strong, correctly sized clamps. The 3" single hose clamp (E19-36) fits hoses in the 64mm-76mm range.
Specs at a glance
| Spec | Detail |
|---|---|
| Product | Single hose clamp |
| Model | E19-36 |
| Nominal size | 3" |
| Clamping range | 64-76mm |
Common uses
- 3" water and trash pumps
- Construction dewatering hoses
- Flexible rubber couplings on 3" drain pipe
- Farm and industrial water transfer
How to size it
Measure the hose's outside diameter where the clamp will sit. Make sure it falls within 64-76mm. If it's very close to either end, consider a different size or a double-clamp setup.
Installation tips
- Fit the clamp loosely over the hose before connecting.
- Push the hose fully onto the fitting.
- Position and tighten the clamp evenly.
- Run the system and check for leaks or air entry.
Safety
- Depressurise lines before adjusting clamps.
- Replace damaged or rusted clamps rather than over-tightening them.
Complete your setup
Maintenance Depot stocks hose clamps from 1" to 3", plus pipe fittings and couplings for drainage and pump jobs.
Frequently asked questions
Is it safe to tighten a clamp on a pressurised line?
No. Depressurise the line before adjusting clamps.
What if my hose is at the edge of the range?
Consider a different size or a double-clamp setup.
What are 3" clamps used for?
Large pumps, dewatering hoses and 3" drain couplings.