Rupture Disk Assembly, 3/8″ M x 1/2″ M 225° F, 7000 PSI

SKU 9.802-192.0 Category
  • 7000 PSI
  • 3/8″ MPT Inlet
  • 1/2″ MPT Outlet
  • Temperature: 225° F
  • Prevents dangerous thermal expansion of the water in the coil


Part Number: 9.802-192.0
Cross Reference Part Number(s): 2-3409, 390045, 98021920, 7300172

This 9.802-192.0 Rupture Disk Assembly is rated for up to 7000 PSI, and prevents dangerous thermal expansion of water in the coil. Should this occur, the rupture disk bursts, offering a relief path for the hot water, ensuring the safety of the pressure washer operator.

This rupture disk is commonly used on hot water pressure washers and offer a great degree of operator safety. It’s designed to relief pressure within the coil housing, during possible malfunctions such as the burner not shutting off when the trigger gun is released, or other failures that could cause thermal expansion of the water in the coil. Many times, replacement of the rupture disk is not the only repair necessary. Please troubleshoot your pressure washer to make certain any malfunctions that have caused the rupture disk to relieve have been addressed, so that the equipment operator remains safe.


3/8" MPT


1/2" MPT




225° F

Memorial Day Observance

In honor of the Memorial Day weekend, Shop Pressure Washer Parts will be operating at limited capacity on Friday, May 24th, 2024, and will be closed on Monday, May 27th.

As a result, orders placed after 12:00pm (PDT) on May 24th may not be processed until Tuesday, May 28th. 

If you have any questions, please feel free to call us during our regular business hours, 7:30a-4:00p (PDT), at (888) 269-0172 and we will be happy to help!

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