Introduction

Parker Hannifin’s response to the demand for reduction in leakage paths has been the combination of primary
and secondary valves into one compact unit. The combining of piping and instrument valves into a single unit
has benefitted various markets. We now offer a range of Ultra-Low Emission products which meet class ‘A’ or
class ‘B’ levels of ISO 15848 standard for Ultra-Low emissions, as required.
Parker Hannifin can offer the unique combination of double block and bleed valve systems together with
integral fittings, both being designed and produced by one company. Selection of this combination results in
the elimination of taper thread connections and the need for thread sealant. For more information on leak path
reductions and how to combine connections and valves into one unit, please contact us.