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Valves

Pressure Washer Authority offers a wide variety of Unloader Valves, Pressure Relief Valves, and Thermal Relief Valves from quality manufacturers. The products found on our online store represent only a small portion of our best selling items. If the part you’re looking for is not listed, please contact us and we would be happy to assist you with other items from our full inventory.

Unloader Valves Unloader Valves
The Unloader Valve’s function is to direct the flow of water exiting the pump. A positive displacement pump continuously pumps water with or without the spray gun being engaged. When the gun is closed, the Unloader Valve prevents the build up of dangerously high pressures by rerouting the water back to the inlet side of the pump. We and manufacturers recommend using a Pressure Relief Valve in conjunction with Unloader Valves when installed on a positive displacement pump.


Pressure Relief Valves Pressure Relief Valves
The Pressure Relief Valve is a self-operating safety device that is installed in the pressure washer system to guard against over pressurization. Relief Valves are designed to continuously regulate the flow of liquid through the pump, and to ensure that pressure will not exceed the preset value allowed. When pressures rise to unsafe levels, the valve will open to relieve the system until the predetermined value is again achieved.


Thermal Relief Valves Thermal Relief Valves
The Thermal Relief Valve is used to protect the pump from overheating and damage. When the unloader is in bypass mode for extended amounts of time the water temperature inside the pump can increase rapidly. Once the Thermal Relief Valve’s rated temperature is exceeded, the heated circulating water is discharged which allows for the introduction of cooler water into the system. Thermal Relief Valves are a cheap way to protect a pump against thermal damage.




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China faces new pressure to let currency rise (AP via Yahoo! News)

China faces mounting pressure from trading partners to loosen currency controls and is giving signs it might raise the value of the yuan to ease strains on its fast-growing economy.

Posted on 8 March 2010 | 4:14 pm

Warren Girl Gets Tangled in Washer (WKBN 27 Youngstown)

A 9-year old Warren girl was severely injured Monday night after her arm became wrapped around the agitator of her family's washing machine. It happened at 263 Atlantic Northeast.

Posted on 8 March 2010 | 9:48 pm

More Info Needed on Problems With Insulin Pumps (MedicineNet.com)

Title: More Info Needed on Problems With Insulin Pumps Category: Health News Created: 3/5/2010 6:10:00 PM Last Editorial Review: 3/8/2010

Posted on 8 March 2010 | 3:31 pm

Doctors find new way to control blood pressure (University of Sydney News)

In a scientific breakthrough, a recent study headed by Professor Roland Stocker from Sydney University's Bosch Institute and Medical School has discovered a new way to control blood pressure.

Posted on 9 March 2010 | 6:38 pm

Riverton pumps New Zealand's cheapest petrol (Stuff)

People who have been filling their cars at Caltex-owned fuel pumps in Riverton appear to have been paying the lowest prices in New Zealand.

Posted on 8 March 2010 | 12:39 pm

Classified Ads (The Herald Democrat)

Have fun working in the sun. Experienced boat washer needed. Please apply in person, Flowing Wells Resort & Marina, 3217 Flowing Wells Rd, Pottsboro. (903)786-2930

Posted on 8 March 2010 | 3:51 pm

Pressure Biosciences, Target Discovery Partner on Tissue Prep (GenomeWeb News)

NEW YORK (GenomeWeb News) – Pressure Biosciences and Target Discovery have struck a multi-faceted agreement covering the development, manufacture, and co-marketing of reagents, PBI said today.

Posted on 9 March 2010 | 2:35 pm

Iran urges China to resist sanctions pressure (AP via Yahoo! News)

Iran on Tuesday urged China to resist pressure by the United States and its allies for new sanctions against Tehran over its nuclear program.

Posted on 9 March 2010 | 6:58 am

Medicine To Lower Blood Pressure Significantly Decreases Risk For Cardiovascular Disease, Stroke (Medical News Today)

A long-acting ACE inhibitor used to reduce blood pressure significantly decreased the risk for cardiovascular disease, including stroke, in normal weight, overweight and obese patients, according to research reported in Hypertension: Journal of the American Heart Association. In the Perindopril Protection Against Recurrent Stroke Study (PROGRESS), the rate of cardiovascular disease declined by ...

Posted on 9 March 2010 | 1:14 pm

Pressure for land increasing (Australian Broadcasting Corporation)

The State Government is coming under pressure to release more land for housing as the state enters another mining boom.

Posted on 9 March 2010 | 5:54 pm

Weymouth Housing Authority reverses washer/dryer ban (The Patriot Ledger)

The management at Lakeview Manor and the complex’s tenants association have come to an agreement that will allow washers and dryers in the units – reversing a ban that was instituted by the Weymouth Housing Authority last month.

Posted on 9 March 2010 | 4:31 am

Fuel-Heated Pressure Washers power hoses up to 300 ft long. (ThomasNet)

Super Max(TM) 12800 series feature Long Hose Technology (LHT) architecture, which produces consistent pressure from beginning to end of hose as long as 300 ft. Functionality lets user position base unit of diesel fuel-, heating oil-, or gas-heated pressure washer in fume-friendly location and clean indoors with pressure nozzle 300 ft away. Available models can be powered by electricity or gas ...

Posted on 8 March 2010 | 8:03 am

Iran says hopes China won't bow to sanctions pressure (Reuters via Yahoo! News)

Iran said on Tuesday it hoped China would not give in to pressure to agree to new sanctions that the United States and its allies hope to win U.N. approval for over its nuclear program.

Posted on 9 March 2010 | 5:46 am

Pressure Washers Direct Adds Earthwise Electric Power Washers (PRWeb via Yahoo! News)

Pressure Washers Direct Adds Earthwise Electric Power Washers. Online Superstore Expands Electric Pressure Washer Offering.

Posted on 2 March 2010 | 1:01 am

Fuel-Heated Pressure Washers power hoses up to 300 ft long. (ThomasNet)

Super Max(TM) 12800 series feature Long Hose Technology (LHT) architecture, which produces consistent pressure from beginning to end of hose as long as 300 ft. Functionality lets user position base unit of diesel fuel-, heating oil-, or gas-heated pressure washer in fume-friendly location and clean indoors with pressure nozzle 300 ft away. Available models can be powered by electricity or gas ...

Posted on 8 March 2010 | 8:03 am

2000 Subaru Outback Limited review from North America (Carsurvey.org)

What things have gone wrong with the car? The only problem I have had with my Subaru was a head gasket, a right CV joint and the rear window washer pump.

Posted on 8 March 2010 | 5:19 am

Woman accused of twisting senior's hand for cash, cell phone (Knoxville News Sentinel)

CLINTON - First, she asked to use her former landlord's washer and dryer Saturday morning.Then, she came back that night and borrowed a $1 bill from him to roll up for snorting a pain pill.Finally, the woman allegedly demanded to see the 81-year-old man's wallet, twisted his left hand until he released it and made off with the $524 it contained and his cell phone.With his phone stolen and unable ...

Posted on 8 March 2010 | 10:41 am

Warren Girl Gets Tangled in Washer (WYTV Youngstown)

A 9-year-old Warren girl was severely injured Monday night after her arm became wrapped around the agitator of her family's washing machine. It happened at 263 Atlantic Northeast. Fire crews had to dismantle the washing machine to free her. We don't know her name, but she was sent to St. Joseph's Hospital.

Posted on 8 March 2010 | 9:59 pm

Research and Markets: US Manufacturing Of Electric Motors, Generators, Pumps, and Compressors Involves About 1,000 ... (Business Wire via Yahoo! Finance)

DUBLIN----Research and Markets has announced the addition of the "Motor, Generator, Pump, and Compressor Mfg " report to their offering.

Posted on 9 March 2010 | 9:30 am

Briefcase | Men accused of stealing $2 million through gas pumps; list names the richest Russians (The Kansas City Star)

Three men are accused of stealing $2 million by installing devices on gas station pumps that harvested credit card access codes.

Posted on 8 March 2010 | 10:00 pm

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