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Atwood Mobile 90028 Water Heater Pressure-Temperature Relief Valve 3/4-14 NPT 150 PSI

Manufacturer

Atwood Mobile

<h3>Leading Manufacturer of RV Appliances and Components</h3> <p>Atwood Mobile Products was founded in 1909 by James and Seth Atwood, originally starting as a vacuum machine company. Over the course of more than a century, the company transformed itself into one of the recreational vehicle industry's most trusted names. According to industry reports, Atwood products are found in 90 percent of recreational vehicles in America, a testament to the brand's widespread acceptance and reliability among RV manufacturers and owners alike.</p> <p>Throughout its history, Atwood has strategically expanded its product portfolio through key acquisitions. The company acquired the Bowen Company in 1964, Wedgewood in the mid-1980s, Hydroflame furnaces in 1993, and Fan-Tastic Vent in 2010, growing its manufacturing capabilities to include a comprehensive range of RV appliances and components. This growth strategy positioned Atwood as a full-service supplier capable of meeting diverse needs across the mobile living sector.</p> <h3>Water Heaters and Heating Solutions</h3> <p>Atwood's most recognized product line remains its <a href="/6692-atwood-mobile-water-heaters-201162">water heaters</a>, where the company has earned its reputation as a pioneer in compact, efficient heating solutions. Atwood Mobile Products has been a world leading manufacturer of appliances and hardware for the RV industry for over 30 years, with particular expertise in water heating technology. Atwood water heaters weigh less than their competitors, 14 pounds less to be exact, making them ideal for mobile applications where every pound matters. The company's innovative approach includes features like Direct Spark Ignition systems and heat exchanger technology that maximize efficiency while minimizing space requirements.</p> <h3>Beyond Water Heaters: Diverse Product Range</h3> <p>While Atwood is best known for heating appliances, the company manufactures a broader range of components that keep vehicles running smoothly. Their product lineup includes <a href="/6692-atwood-mobile-engine-water-pump-2208">engine water pumps</a> designed for reliable coolant circulation, <a href="/6692-atwood-mobile-headlight-bulb-11701">headlight bulbs</a> for visibility and safety, and <a href="/6692-atwood-mobile-hvac-heater-control-valve-6860">HVAC heater control valves</a> that regulate cabin temperature. The company even produces <a href="/6692-atwood-mobile-shock-absorber-kit-48166">shock absorber kits</a> for improved ride quality, demonstrating Atwood's commitment to addressing multiple aspects of vehicle performance and comfort.</p> <h3>Engineering Excellence and Industry Leadership</h3> <p>Definitive design and exceptional engineering help to separate Atwood from other manufacturers. The company's approach focuses on creating products that can withstand the unique challenges of mobile environments—constant vibration, temperature fluctuations, and the need for compact installation profiles. Atwood is the largest manufacturer of specialized water heaters for recreation vehicles and marine use worldwide, with 30 years of experience building lightweight, reliable products for difficult mobile conditions. This expertise extends across their entire product range, ensuring that whether you're replacing a water heater component or sourcing an engine part, you're getting products engineered specifically for the demands of mobile applications.</p> <p>Today, Atwood continues to innovate and expand its offerings while maintaining the quality standards that have made it an industry leader. For RV owners, marine enthusiasts, and anyone maintaining mobile equipment, Atwood Mobile Products represents more than a century of manufacturing expertise dedicated to making life on the road more comfortable and reliable.</p>

Part Number

90028
07/13/2036 4:39 AM
Sale Price

$82.27

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The Atwood Mobile 90028 is an OEM pressure-temperature (P/T) relief valve engineered as a direct replacement for Atwood and Dometic RV water heaters. Featuring a 3/4-14 NPT thread connection and a factory-set relief pressure of 150 PSI, this valve is a critical safety component that protects your water heater tank and surrounding plumbing from dangerous over-pressurization.

When internal tank pressure exceeds the rated threshold, the valve automatically opens to safely vent excess pressure—then reseats once conditions normalize. Replacing a faulty or weeping P/T relief valve is essential preventive maintenance that helps avoid costly water heater damage.

Key Features:

  • Factory-set relief pressure: 150 PSI
  • Thread size: 3/4-14 NPT
  • OEM replacement for Atwood / Dometic RV water heaters
  • Automatic pressure-relieving operation for passive safety protection
  • Direct fit for electric and combination gas/electric Atwood water heater models

Compatible Atwood Water Heater Models Include:

  • GCH66E, GCH67E, GCH68E
  • G6A6E, G6A7E, G6A8E
  • G10-2E, G10-3E
  • GH102E, GH103E
  • GCH6A10E, GC6AA10E
  • GC10A4E, GCH10A4E
  • Most other Atwood models equipped with a 3/4 NPT relief valve

Sold as a single replacement valve. This is a genuine Atwood Mobile Products part (now sold under the Dometic brand) and the correct OEM service kit component for 3/4-inch NPT-equipped units.

Haven't found the time to work on my SL.

Tires arrived in great condition

Everything went smoothly. Thanks.

Excellent price and very easy to order products.

Product shipped from Norfolk VA, which was very convenient to me in NC. Arrived in a few days from ordering.

easy order

Easy internet purchase

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