The Chemical Injection Sub is designed to allow the injection of either a de-icing agent (i.e. Methanol or Glycol) or an inhibitor to prevent H2S/CO2 corrosion. It is mounted just below the Stuffing Box or Grease Injection Head.
It has replaceable felt packing, which are kept constantly wet by chemical injection and therefore act as wipers to the wireline passing through it.
The Chemical Injection Sub can be supplied with various size unions, pressure rating up to 20,000psi, for Standard and H2S Service and suit larger wire sizes upon request.
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