Valve head coating and surface treatment
For some applications, such as trace sulfur analysis, it is necessary to coat the valve head for inertness. The PLSV valve technology is perfect for such applications. A known problem with existing valve technologies such as conical rotary valve is the rapid wearing of the coated surface making such valves unreliable. The inert coating “peels” from the surface. Due to the reduced surface sealing area and reduced friction of the PLSV technology, the performance of such valves is greatly improved.