October 6th, 2011 
vdate Rebuilding The Flow-Actuated Unloader Valve
The K-5 and K-7 designs are typical of flow unloaders. A number of manufacturers make unloaders of this type including Suttner, Giant, Cat and others. This unloader type can be rebuilt using a vise and minimal tools. Care should be taken to not scratch or damage the unloader during rebuilding. Special care should be taken to not damage internal surfaces and parts. (more…)
April 13th, 2011 vdate 
Protection Against Excessive Pressure
The pressure relief or pop-off valve is a simple pressure-relieving safety device. When system pressure reaches a predetermined point, the valve opens and releases water from the system to the atmosphere. The pressure relief valve functions as sort of a circuit breaker for water. (more…)
March 23rd, 2011 vdate 
Introduction To Electricity
Many system controls are for incorporate electrical switches. To fully understand their action, you need to understand how electricity works and how to test circuits. It does not take a genius to understand how electricity works. The first step is understanding how electricity is measured. (more…)
Posted in Articles 
Tags: Chemical, Guns, pressure-washers, Pumps, Surface Cleaners, Unloader 
No Comments » March 24th, 2010 vdate 
The Unloader Valve in Action
The unloader valve diverts water flow into bypass when the trigger gun valve is closed. Unloaders may be designed to respond to either an increase in pressure or a change in flow. The unloader valve may also be used for variable pressure adjustment. (more…)
March 18th, 2010 vdate 
Trigger Gun
Trigger guns are fairly simple mechanisms designed around a trigger-operated valve. Generally a ball and valve seat is used in trigger guns but a piston valve may be used in a dump gun. (more…)
March 18th, 2010 vdate 
Controlling Flow from the Cleaning System
The trigger gun and unloader valve are the two main components of the most common control and safety system for high pressure cleaning equipment. (more…)
December 9th, 2009 vdate October 6th, 2009 vdate September 24th, 2009 vdate 
Cleaning and examining both your pressure washer and the accessories you use with it, before and after each use, will help you avoid problems with performance, and will save you money on parts and repairs. Refer to your owner manual for special guidelines that are appropriate to your pressure washer’s make and model.
Posted in Articles Tags: Chemical, Guns, nozzles, pressure-washers, Pumps, Surface Cleaners, switches, Unloader, Wands No Comments »
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