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Whale Water Systems 75974 Temperature and Pressure Relief Valve for Marine Water Heaters

Manufacturer

Whale Water Systems

<p>Whale Water Systems, established in 1946, has been at the forefront of marine pump technology for over seven decades. Now a proud part of Navico Group (a division of Brunswick Corporation), Whale is a committed leader in connected water systems for marine applications. With a reputation built on innovative engineering and unwavering reliability, Whale has become the go-to choice for boat owners, recreational mariners, and commercial vessel operators who demand performance and durability in challenging marine environments.</p><h3>Engineering Excellence for Every Onboard Water Need</h3><p>Whale makes outdoor living easy and enjoyable with a wide range of quality low voltage pump, heating, and water systems, delivering true independence and freedom with complete systems designed for use on the water. From bow to stern, Whale's comprehensive product lineup addresses every aspect of onboard water management. The brand's dedication to innovation is evident in their development of specialized solutions including the world's first low-profile electric bilge pump, showcasing their commitment to space-saving design without compromising functionality.</p><h3>Complete Water System Solutions</h3><p>At the heart of Whale's marine offering is their extensive range of <a href="/7648-whale-water-systems-pressurized-water-system-tubing-fittings-200807">pressurized water system tubing and fittings</a>, which form the backbone of reliable onboard plumbing installations. These marine-grade components ensure leak-free connections and consistent water flow throughout the vessel. For bilge management, Whale's <a href="/7648-whale-water-systems-manual-bilge-pumps-200649">manual bilge pumps</a> provide dependable backup solutions when electrical systems aren't practical or as emergency redundancy.</p><p>Whale's freshwater range includes the highest quality marine-grade electric and manual pumps, and a full range of accessories to deliver a smooth and consistent on-board freshwater supply. Their <a href="/7648-whale-water-systems-aft-decktransom-showers-200072">aft-deck and transom showers</a> bring convenience to any vessel, while <a href="/7648-whale-water-systems-showerfaucet-mixers-200946">shower and faucet mixers</a> offer precise temperature control for comfort in galley and head installations. The brand also manufactures critical electrical components like <a href="/7648-whale-water-systems-float-switches-200426">float switches</a> that automate bilge pump operation, providing peace of mind for vessel owners.</p><h3>Built for Marine Environments</h3><p>Whale is a well-known brand with a reputation built on decades of high quality design expertise, supplying the marine, caravan, motor home, shower drainage and industrial markets around the world with innovative freshwater, bilge and waste pumps and water & space heating systems. Every Whale product is engineered to withstand the harsh conditions of marine use—saltwater exposure, constant vibration, temperature fluctuations, and the demanding duty cycles that come with life aboard. Whether you're outfitting a small sailboat or a large commercial vessel, Whale Water Systems delivers the reliability and performance that mariners have trusted for generations.</p>

Part Number

75974
06/01/2036 12:27 PM
Sale Price

$38.01

In Stock (10+)

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Usually delivered within 2 days

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No Hassle Returns

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Fitment guaranteed

Fitment guaranteed

Product Details

The Whale Water Systems 75974 is a critical safety component designed to protect marine hot water heating systems from excessive pressure and temperature buildup. This replacement relief valve is specifically engineered for Seaward 6-gallon and 11-gallon marine water heaters, providing reliable protection against dangerous conditions that can damage equipment or create safety hazards.

Key Features:

  • 1/2" NPT threaded connection for secure installation
  • 100 PSI maximum pressure rating for optimal safety protection
  • 210°F temperature relief threshold prevents overheating
  • Direct replacement for Seaward part number 73127
  • Manufactured by Watts (OEM part number 0004431)
  • Compatible with all Seaward marine water heaters

This temperature and pressure relief valve automatically releases water when system pressure exceeds 100 PSI or temperature reaches 210°F, preventing tank rupture and protecting your marine plumbing system. Essential for maintaining safe operation of your onboard hot water system, this valve ensures compliance with marine safety standards while extending the life of your water heater.

Quick and easy search system.

great selection, fast delivery

Recieved item as described and in great condition 7

All is good! If you ship with USPS (and not UPS) I&#039;m happy.

Y'all guys are awesome I will be definitely order from you again . I have a 1978 omc 350 in and out board that I have been trying to find a place to order from.Now I am so glad that I found y'all.Mr Gilmore

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