Tier Three is a fluid-mechanics classification to check on the exact nozzle you are buying. KEG's SBK-F26 catalog describes an efficiency rating of 80% or higher as Tier Three under the NASSCO Jetter Code of Practice classification. The catalog marks qualifying models with its Tier Three Fluid Mechanics symbol.
What the rating tells you
The designation concerns the nozzle's fluid mechanics. NASSCO's sewer-jetting technical guidance explains that tier ratings relate to the manufacture and design of internal passages and jets. Use the manufacturer's documentation for the particular model and configuration.
Insert material, inlet connection, nozzle application and tier are separate specifications. Fitting ceramic inserts does not, by itself, change a model's tier. A tier mark should not be presented as a separate NASSCO product certification.
KEG examples from SBK-F26
- Cleaning and Traction: catalog Tier Three families with published 80%+ efficiency descriptions. Compare individual sizes and intended applications.
- Sewer: a Tier Three cleaning family for larger equipment, with model-specific connection and pipe ranges.
- Royal and Torpedo: the catalog's Fluid Mechanics section states 98% and 97% respectively. These are manufacturer-published figures for those families, not ratings for every KEG nozzle.
- Sewer Flush and Egg: shown in the catalog's Tier Two cleaning group.
- Standard and Ball: shown in the Tier One group.
JPS calls the Sewer Flush the cleaning nozzle in the 1/4-inch Starter Kit. That kit naming does not turn it into the separate Tier Three Cleaning model.
Translate the specification into a buying decision
Choose the job first: opening a blockage, cleaning pipe walls, moving debris or finishing. Then match the exact nozzle to the available machine and hose setup. A premium nozzle is useful when its design fits that work; a tier number alone does not establish suitability.
Fluid-efficiency percentages do not establish a fixed reduction in job time, passes, water or fuel. Measure those outcomes on comparable jobs. More efficient fluid handling is a reason to evaluate a nozzle, not a promise that every line cleans in one pass.
Plumbers: choose your size and flow
Browse 1/4-inch and 3/8-inch nozzles, or compare plumber kits. Enter your desired GPM for those sizes. For 1/2-inch and larger selections, provide GPM and working PSI. Use the Nozzle Finder to start.
Contractors and municipalities: check the exact equipment
The contractor and municipal shop brings together larger sizes, Victory and available KEG demo and used units. Confirm each unit's condition, connection, operating requirements and availability. For a bid specification, request the documentation for the exact model being proposed.
Serviceability and warranty
Applicable insert-equipped models allow compatible jet components to be serviced while a sound body remains in use. Inspect other components too; inserts are not necessarily the only parts that can wear. See replacement parts for current options.
KEG's published warranty provides one year on replaceable steel inserts and five years on titanium-ceramic inserts, subject to the applicable terms and exclusions. Warranty duration is not a predicted replacement interval or a promise that normal wear is covered. Read the warranty details.
Help choosing
Send the model or connection size, desired flow and job details. For a detailed configuration check, include working pressure, hose inside diameter and hose length. Call (864) 804-6637 or contact Jetter Pro Supply.
Technical reference: KEG SBK-F26 product catalog, including the Fluid Mechanics section and the relevant model specifications. Match parts to the exact nozzle and configuration.