The volume of liquid passing through a nozzle (also called the nozzle’s capacity) is typically measured in gallons per minute or liters per minute. Flow rate is affected by liquid pressure and other factors, including the specific gravity and viscosity of the liquid being sprayed.
> _For more information on liquid flow rate or nozzle capacity, download our [technical reference document](https://spray.widen.net/download/spray/oeafrrites/cat75HYD_us_Tech-Reference_A.pdf) or contact your [local Spraying Systems Co. sales rep](https://www.spray.com/contact/find-a-representative)._

Liquid Flow Rate

Inlet Connection Size

The operating pressure as published in our catalog.

> _For more information on how liquid pressure affects spray performance, download our [technical reference document](https://spray.widen.net/download/spray/oeafrrites/cat75HYD_us_Tech-Reference_A.pdf) or contact your [local Spraying Systems Co. sales rep](https://www.spray.com/contact/find-a-representative)._

Liquid Pressure

Spray nozzles are manufactured from a wide variety of materials that have been determined to meet the usual requirements of the applications most commonly associated with that type of nozzle. Standard materials include brass, steel, various stainless steels, hardened stainless steels, many plastics and various carbides. Spray nozzles can also be supplied in other materials upon special request. Materials of construction affect nozzle wear life and resistance to corrosion and abrasion.
> _For more information on nozzle materials, download our [technical reference document](https://spray.widen.net/download/spray/oeafrrites/cat75HYD_us_Tech-Reference_A.pdf) or contact your [local Spraying Systems Co. sales rep](https://www.spray.com/contact/find-a-representative)._

Materials

Specific gravity is the ratio of the density of a fluid compared to the density of water. It must be considered to properly calculate flow rate. 

 **Alternatively**, if you don't know the specific gravity you may select the **Liquid Type** from a list of commonly-sprayed liquids and temperatures.

### Liquid Type

 The type of liquid sprayed and its temperature affects the specific gravity of the liquid and in turn affects the flow rate. The default liquid is water, with a specific gravity of 1. 

> _For more information on how specific gravity and other characteristics such as temperature, viscosity and surface tension affect spray performance, download our [technical reference document](https://spray.widen.net/download/spray/oeafrrites/cat75HYD_us_Tech-Reference_A.pdf) or contact your [local Spraying Systems Co. sales rep](https://www.spray.com/contact/find-a-representative)._

Specific Gravity

The angle of the spray pattern as it emerges from the nozzle orifice, measured in degrees. Narrower spray angles provide less coverage of the sprayed surface. Wider spray angles provide greater coverage of the sprayed surface. Solid stream nozzles have a 0° spray angle.
> _For more information on spray performance characteristics including spray angle and spray coverage, download our [technical reference document](https://spray.widen.net/download/spray/oeafrrites/cat75HYD_us_Tech-Reference_A.pdf) or contact your [local Spraying Systems Co. sales rep](https://www.spray.com/contact/find-a-representative)._

Spray Angle

Most nozzles are available with NPT or BSPT connections. Other threaded connections are available on select nozzles and additional connection types, such as flange and quick-connect, are also common. Some nozzles are also available with sanitary connections.

Inlet Connection Type

Model

GunJet® Trident™ Spray Gun

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Trident™ Washdown Spray Gun

GunJet® Low Pressure Spray Gun, Max Pressure 200 psi

GunJet® Low Pressure Spray Gun with Trigger-Activated Variable Spray Pattern, Max Pressure 250 psi, Capacity 10 gpm

GunJet® Low Pressure Spray Gun, Max Pressure 75 psi, Adjustable Metering Assembly, Capacity 1 to 16 ml per dose

GunJet® Low Pressure Spray Gun with Trigger-Activated Variable Spray Pattern, Max Pressure 250 psi, Capacity 16 gpm

GunJet® Low Pressure Spray Gun with Rubber Cover, Max Pressure 150 psi, Capacity 10 to 22 gpm

TriggerJet® 22650-PP Low Pressure Trigger Valve

MeterJet® Low Pressure Trigger Valve

Low Pressure Trigger Valve with 1/4" or 3/8" (F) Outlet, Max Pressure 150 psi, Capacity 7 gpm

GunJet® Low Pressure Spray Gun, Impact Resistant, Max Pressure 200 psi, Capacity 15 gpm

Low Pressure Trigger Valve with 11/16-16 UniJet® THD Outlet, Max Pressure 250 psi, Capacity 2 gpm

Low Pressure Trigger Valve with 1/4" (F) Outlet, Max Pressure 250 psi, Capacity 2 gpm

Low Pressure Trigger Valve with 11/16-16 UniJet® THD Outlet, Max Pressure 250 psi, Extra Long Trigger, Capacity 2 gpm

Low Pressure Trigger Valve with 1/4" (F) Outlet, Max Pressure 250 psi, Extra Long Trigger, Capacity 2 gpm

QuickMist® Quick Connect Air Atomizing Nozzles

Electrically-Actuated / Hydraulic Atomizing

Throttling and Pressure Relief/Regulating Valves

* A more comfortable and reliable alternative to traditional washdown guns* Lightweight design with ergonomic grip reduces fatigue during long cleaning shifts* Innovative springless trigger mechanism provides a lighter, smoother pull and improved spray integrity* Durable glass-filled nylon body withstands daily abuse in harsh plant environments* Reinforced trigger guard prevents damage and accidental activation* High-impact spray delivers superior cleaning at lower flow rates, cutting water and sewer costs* Available in low- and high-pressure versions

SprayFinder®

Model

Materials

Low Pressure