(function (w, d, s, l, i) { w[l] = w[l] || []; w[l].push({ 'gtm.start': new Date().getTime(), event: 'gtm.js' }); var f = d.getElementsByTagName(s)[0], j = d.createElement(s), dl = l != 'dataLayer' ? '&l=' + l : ''; j.async = true; j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f); })(window, document, 'script', 'dataLayer', 'GTM-WW3Q98L');
A technician works on a Leak Detector

Stuffing Box Leak Detector

Detect gas or liquid leaks in your stuffing box with our leak detector.

  • Description Description
  • Resources Resources

The Leak Detector adapts to all Hercules™ classic stuffing boxes and Hercules Big Stuff stuffing boxes equipped with HPLUG.


  • Components:
    • Pressure-activated shutdown switch
      • Meets NEC Class I, Div. 1 requirements
      • Provides positive shutdown of the flow
      • Easily wired to SCADA or a controller
    • Manifold connection
      • Two ½-in. ports and one ¾-in. port allow custom installation
      • ¾-in. end cap allows easy cleanout of blockage
  • HPLUG required for installation (not included; must purchase separately)
  • Set at 18 psi as standard
  • Available in 1,500, 2,500, and 3,000 psi
  • Production Service Hookup Brochure