Cash Valve Type FRM-2 Industrial Back Pressure Valve

Automatic pressure limiting regulator to maintain a desired maximum pressure in a system or vessel by relieving excess pressure

Product Features

  • Furnished with either neoprene diaphragm or metal diaphragms in three body styles.
  • Designed with larger physical dimensions and internal seat opening providing greater capacity. It is also suitable for fuel oils and lube oils and is available in stainless steel body with system exposed internal parts for service with corrosive or harsh fluids.
  • Incorporates the same superior ‘floating ring’ design as the larger Type FR to provide smooth, even pressure control.
  • All versions fitted with adjusting screw as standard. Also available with T-handle and with bushing for mounting the valve to a control panel, on special order.
  • All valves are furnished with a travel stop that prevents diaphragms from extending beyond their limit.


  • Maximum temperature: with neoprene diaphragm: 180°F (82°C). with metal diaphragm: 500°F (260°C)
  • Sizes: ⅛”, ¼”, ⅜” and ½” (3.2, 7, 10.5 and 15 mm)
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