Bonomi has introduced an advanced sealing system for valve stems, suitable for use with chemicals. V-Pack is a PTFE stem sealing system that removes the need for an elastomer O-ring. The result is a single valve, removing the need to consider changing the elastomer O-ring stem seals.
The removal of the elastomer O-ring stem seal also has the benefit of increasing the temperature range (-40 °C to 180 °C) of the valve.
The performance of V-Pack has been Fugitive Emission Tested in accordance with ISO 15848-1, covering the external leakage of stems and body joints of valves intended for use with volatile air pollutants and hazardous fluids. This new option is available for Bonomi’s Valpres range of wafer, wafer-split, and split-body ball valves in carbon steel and stainless steel.
Image credit: Fluid Handling Magazine