How to Connect a Fire Hydrant to an Attack Hose, Gated WYE Valve, and Pro Nozzle
Connecting a fire hydrant to an attack hose, gated wye valve, and Pro Nozzle should be done only by trained personnel following your department’s standard operating procedures and local authority requirements. Inspect all equipment before use, confirm the hydrant is approved for service, and make sure the area is safe.
Equipment checklist
- Fire hydrant with compatible outlet and cap
- Attack hose with the correct coupling
- Gated wye valve with compatible inlet and outlets
- Pro Nozzle
- Spanner wrench and any required adapters
- Appropriate personal protective equipment
Connection steps
- Inspect the equipment. Check the hydrant outlet, hose couplings, gated wye valve, nozzle, gaskets, and threads for damage, dirt, or missing parts. Confirm that every connection is compatible and rated for the intended pressure.
- Position the equipment. Place the gated wye valve where it can be operated safely and where the hose will not be sharply kinked, pinched, or exposed to vehicle traffic. Keep the Pro Nozzle pointed in a safe direction.
- Connect the attack hose to the gated wye valve. Make sure the gasket is seated, align the couplings by hand, and tighten them with the appropriate wrench without cross-threading or over-tightening.
- Connect the Pro Nozzle. Attach the Pro Nozzle to the attack-hose outlet or the selected gated-wye outlet, depending on your setup. Verify that the nozzle is secure and that its control is in the closed position before charging the line.
- Connect the supply side to the hydrant. Attach the gated wye valve or the supply hose assembly to the hydrant outlet specified by your operating procedure. Confirm that the connection is fully seated and supported.
- Charge the line slowly. Communicate with the nozzle operator, clear the area, and open the hydrant gradually to reduce water hammer. Watch every coupling for leaks, and stop if a connection shifts or fails.
- Flush and operate safely. Once the line is stable, open the gated wye and Pro Nozzle according to your department’s procedure. Maintain control of the hose, monitor pressure, and never stand over a coupling or in front of a nozzle.
After use
Close the nozzle and gated wye as directed, shut down the hydrant gradually, relieve pressure before disconnecting, drain and inspect the hose, and report any damaged equipment for service.
Safety note: This guide is general information only. Always follow the manufacturer’s instructions, your fire department’s training, and local regulations. If the fittings, pressure rating, or operating sequence are uncertain, stop and consult a qualified fire-service professional.