Flux hand nozzles are a vital accessory for safe, accurate liquid dispensing when using our JuniorFlux and CombiFlux pumps. Designed to integrate seamlessly with Flux barrel and drum pumps, our hand nozzles are an easy to use, reliable way of controlling fluid transfer in industrial chemical transfer applications. Whether you're filling containers, dosing small volumes, or transferring liquids that require secure containment, a hand nozzle gives operators a safe, precise method of controlling discharge rate. Plus, with optimised sealing materials and a smooth lever action requiring minimal force, Flux hand nozzles significantly reduce spillage risk, while maintaining user comfort. Furthermore, nozzles are available in a range of high-performance materials, including polypropylene, PVDF and stainless steel. Each hand nozzle is compatible with specific liquids, from corrosive chemicals to food products. Please check chemical compatibility before purchase. Furthermore, all Flux nozzles feature a ball bearing mounted hose connection, enabling 360° flexibility, for ease of use and reduced risk of hose kinking.

Material / Seal Combination	Connection	Outlet Ø (mm)
Polypropylene / FKM	DN19	11 mm
Polypropylene / FKM	DN19	22 mm
Polypropylene / EPDM	DN19	22 mm
PVDF / FKM	DN19	22 mm
Stainless Steel 316 / PTFE / FEP	DN19	28 mm

Firstly, a hand nozzle is essentially an ergonomically designed, hand-held valve with spout, that that allows the user to start, stop and accurately regulate the flow of liquid being dispensed from a pump system. Furthermore, its primary function is to enhance operational safety and prevent spillage or overfilling. This is particularly useful when filling smaller containers, or when dispensing hazardous or flammable media.

In addition to regulating flow, the hand nozzle’s ergonomic design minimises physical strain on the operator during extended use. The internal sealing mechanism prevents leakage, while the rotating hose connection improves manoeuvrability, ensuring the hose does not kink or twist during operation. Ultimately, a hand nozzle is a simple, low-cost upgrade that improves dispensing precision and control in a wide range of drum and IBC transfer scenarios.

A hand nozzle regulates the flow provided by a centrifugal pump. A nozzle affects discharge velocity and system pressure, by forcing liquid through an adjustable internal orifice. Furthermore, as the operator closes the orifice to reduce flow rate, liquid velocity at the spout increases, to a degree. This is proven by the continuity equation in fluid dynamics, however, this effect is limited and dependent on the upstream pressure and pump capacity.

When fully open, the nozzle’s internal geometry is designed to effect minimal pressure loss and therefore provide the highest flow rate possible. It does not change pump discharge pressure, but overall system pressure downstream of the pump will subsequently increase as the hand nozzle is closed. Flow rate will decrease until the hand nozzle valve is completely closed and zero flow condition is reached. This is also known as “dead-heading” the pump. Consequently, the pump will develop its maximum discharge pressure at this point.

Therefore, it’s important to consider the maximum pressure rating of discharge hoses and hand nozzles. The pressure rating must be considerably higher than pump discharge pressure, to eliminate risk of a hose burst, or a hand nozzle failure.

Finally, for applications requiring precise or rapid dispensing, or filling containers, extra consideration should be given to the choice of spout diameter.