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Allison Engineering

Innovative Solutions for
Process Control

Safety Shields


PPL Spray Guard

The PPL (polypropylene) shield was developed for use with hydrofluoric acid. While being “application specific” it is versatile, though it’s chemical tolerance is greatly affected by concentration. Eg, at Sulphuric acid of 30% or less, the PPL shield are recommended up to line temperatures of 200°F. However, with 93% or 98% concentrations it’s use is limited to systems with ambient temperature

Key Features

  • PPL material, opaque or transparent
  • Inherently resistant to Ultraviolet radiation
  • Process temperatures up to 90°C
  • Flange size from ¼” to 24”
  • Leak detection included via litmus patch
  • Pressures up to 40 Bar @ 20C (pin hole leak)