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  • Available with brass valve (316SS available at 150 psi)
  • 316SS or CPVC materials of construction
  • 1/2 to 1in NPT process connection
  • Lever-operated stop eliminates need for a wrench
  • Protection chain prevents withdrawal before corporation stop is closed
  • 1/2in female inlet connection on all models


The Neptune Corporation Stop with Injection Quill is used for injecting chemicals pumped by metering pumps into tanks, mains, cooling towers, and process systems. Because quills extend into the center of the stream, they provide more rapid, uniform dispersion of injected chemicals. 

Corporation stops can be mounted to a "hot tap," which will allow an injection quill to be inserted or removed without having to drain or shut down the system.

It is recommended that a check valve and isolation valve are installed at the quill inlet for ease of maintenance.