Easy Installation.
Maintenance Free.
Lifetime Protection.

The Tattle™ is proudly manufactured in the U.S.A. and is made from high quality materials, resistant to corrosion and engineered to last the lifetime of the system.

The Tattle™ is a permanent solution and can be reset once triggered. If venting occurs and the gate is opened, the device is simply reset by rotating the shaft 90º to the original position. The flags movements are restricted to two positions by roll pins pressed into the housing and a spring clip holds the flag in place once the device has been triggered.

Because the Tattle™ is so reliable, the most interaction the system operator will have with it is during the initial installation. The Tattle™ comes in seven common sizes and is plumbed into the system using standard National Pipe Thread Taper (NPT) fittings for the 1", 1¼", 1½" units or raised-face, gasket-sealed flanges (flanges not include) for the 2", 2½", 3" and 4" units.

The Tattle™ is the epitome of simplicity and, as long as the operator follows the guidelines for use, it will provide years of trouble-free service. With a single moving part and no complicated electronics that can produce erroneous readings, the device is virtually maintenance free. Once installed, the Tattle™ requires no special maintenance beyond a periodic inspection to ensure that there is no visible corrosion on the housing and that the flag and shaft rotate freely.

Even though the Tattle™ is installed outside the high pressure system it may still see some wear and tear. If for some reason, a problem does arise, the Tattle™ can be repaired with parts available online or replaced altogether at a fraction of the cost of other more complicated and expensive solutions.


  • Hard-anodized aluminum body and indicator flags
  • Stainless steel axle and paddle (HP uses a heavier duty paddle design)
  • O-ring axle seals
  • Design pressures:
    Tattle original - 300 PSIG/20.6 bar
    Tattle HP - 675 PSIG/46.5 bar
  • Available in seven connection sizes:
    FPT Sizes - 1", 1¼", and 1½"
    FLG Sizes - 2", 2½", 3", and 4"
  • Easy to install and maintain
  • Low pressure drops
  • Flag position viewable from a distance
  • Locking spring to secure flag in place after a release

Download Product Specification
Download Installation and Service Information

frequently asked questions

Putting an isolation valve downstream of a PRV is not only a bad idea, but is indeed prohibited. However, the Tattle™ is an instrument and not an isolation valve. Even in the raised position the paddle does not fully obstruct the bore of the housing. In fact, the pressure drop across the Tattle™ closely matches that of a simple 90º pipe fitting and so should not raise any red flags.