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MTM Hydro's BRV unloader series is a trapped pressure unloader that has universal 3/8" ports for mounting, installation, and bypass requirements. The BRV unloader readily competes and regularly replaces competing models such as the VRT3 or Pulsar Unloaders. With its enticing price point, this Italian designed and manufactured unloader can be found across dozens of industries including Mobile Cleaning, Car Wash Installations, Mining, Auto Detailing, and many more.

  • Bypass - Two available 3/8" NPT Female ports
  • Inlet - Two available 3/8" NPT Female on side or bottom
  • Outlet - 3/8" NPT Female
  • Mounting port - 3/8" NPT Female bottom mounting port available
  • Shaft made of stainless steel for greater resistance to rusting and greater resistance to the torsional forces leading to longer life
  • Main spring is guided through a thick spacer instead of a cheap washer
  • Initial spike pressure is 30%, which is approximately a 23% reduced spike pressure compared to competitors
  • Max - 2,600 PSI - Yellow O-Ring
  • Max - 12 GPM
  • Max - 194°F temp rating



This product can expose you to chemicals, including DINP and/or DEHP which is known to the state of California to cause cancer or birth defects or other reproductive harm, go to for more information.

The products we sell are not intended for use in potable water systems and are only for industrial non-drinking water applications.