The Role of the Unloader

The trigger gun and unloader valve are the two main components of the most common safety system for high pressure cleaning equipment.

Essentially, depressing the trigger allows water to flow out of the system through the nozzle under pressure while releasing the trigger diverts water flow back to the pump. The pump, however, continues to run.

The gun, with the unloader valve, forms a valve system which gives the operator immediate control of water flow or, in some types of systems, pressure. Water flow can be turned on or off by depressing or leasing the trigger, or in “dump gun” systems, system pressure can be drastically reduced to safe levels.

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Basic Maintenance High Pressure Plunger Pumps

This article is meant to provide an overview of basic maintenance high pressure plunger pumps in industrial applications. The pump is the heart of today’s pressure washer, and it is usually the most neglected component in the system. As long as it is working it is not thought about, as soon as it fails it has the highest priority.

History

It has been documented that the pump is probably the earliest form of machine dating back to around 2000 BC. Today the pump is the second most common dynamic machine in use. The electric motor claims first place

The reciprocating pump first appeared during Roman times (250-0 BC); it was operated by hand, water animal or wind power.

This article will only touch the tip of the maintenance structure. Each item of a system could be written about in depth. The intention for this article is to hopefully arouse your interest in safeguarding your personnel and equipment by looking at maintenance.

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AR North America Announces the Release of the Next Generation Pumps for Industrial and Commercial Applications – The RTX

rtx

AR North America announces the RTX, newest in its wide range of state-of-the-art, easy maintenance pumps. The RTX features stainless steel convexed intake and discharge valves for high fluid dynamic efficiency along with high-strength, one piece, non-porous forged nickel-plated brass head and forged heat treated steel crankshaft. The dual high-pressure sealing system with anti-extrusion ring support lubricated with low pressure recirculating lubrication chambers for the low pressure seals, plus “premium” tapered roller crankshaft bearings make this model a powerful pump option.

Founded in 1989 by Ralph Notch, Annovi Reverberi North America, Inc. has become a leader in the pressure washing, car wash, misting and cooling, sewer jetting, carpet cleaning and reverse osmosis markets where high pressure water plunger pumps and related accessories are key. AR North America believes its success is based on a commitment to technical excellence, unparalleled customer service, world-class manufacturing and distribution.

The internal structure of ARNA is characterized by guaranteed high standards of quality, safety and responsiveness. Consumer reviews confirm that commitment: “Excellent product, even better customer service.” “A real winner.” “Impressive product.” “..accomplishes many tasks easily.” “This is the one to buy.”

The New Rear Entry Trigger Gun AL7 Introduced by A.R. North America

The new Rear Entry Trigger Gun AL7 introduced by A.R. North America will handle up to 10 GPM and pressure up to 4000 PSI. It is available as the cold water version AL7 gun, which can handle water temperatures up to 140° F., and as the hot water AL7H, for up to 300° F. Rental Duty Trigger Guns with 3/8″ F inlets, and ¼” F outlets.

 

 

Contact Name:

Kyle Notch
Title: Marketing Manager
E-mail: KyleN@ARNorthAmerica.com

AR North America Announces the Release of RTF Series High Volume Triplex Plunger Pumps

AR North America announces the release of RTF Series high volume triplex plunger pumps. Spinning at 800 or 1000 RPM, these 24mm solid shafted pumps will move 36-44 GPM at 1500 PSI. To handle the high water volume, these pumps have 1 ½” F Inlets, and 1″ discharge fittings.

 

Contact:
Kyle Notch
Title: Marketing Manager
E-mail: KyleN@ARNorthAmerica.com