Regulators
EnPro PPAIR – Pressure Assisted Insertion Regulator
Regulators
EnPro PPAIR – Pressure Assisted Insertion Regulator
A pressure-assisted insertion regulator that provides a regulated sample supply to H₂S analysers, chromatographs, gravitometers, calorimeters, moisture analysers, instrument gas take-offs, and other online equipment.
Why it matters
By dropping pressure at the probe tip inside the pipe, the PPAIR minimises the Joule - Thomson effect to deliver a representative sample for accurate analysis. Its pressure-assisted design enables safe live insertion and retraction without shutdowns for pipelines up to ANSI 1500 in the standard configuration.

Product features
- Quick insertion/retraction under line pressure (under 5 minutes)
- Sealed with elastomers - avoids galling of threads under pressure, no seals subjected to a thread.
- Adjustable insertion length with flexible probe diameters
- Wide range of connections, materials, and options (SilcoNert®, specialty tips, heated versions)
Need help specifying the right regulators?
Talk to a Haldatec engineer about your application, site conditions and the standards you operate to.
Talk to our team
