• PPM Double Seal



Sizes: ¾ to 12" (16 to 320 mm)

Purge pipes fast with minimal gas usage

PPM also manufactures the silicone Double Seal purging system that has been designed to further reduce both inert gas use and purging time. This system uses silicon discs to form an airtight seal, reducing purge times and gas usage for maximum efficiency.

There are 2 styles of silicon Double Seal systems available:

  • the Gas Finger system is designed for small pipes and tubes from 16 - 38 mm i/d
  • the Double Seal system is made for pipes from 3/4 - 12" (16 - 320 mm)

Features and advantages

  • Extremely short purge times resulting in valuable cost savings
  • Typical purge times of less than 2 minutes (e.g. an 8" pipe will purge to below 0.01% oxygen in less than 2 minutes)
  • High quality silicon sealing disks that prevent them tilting or falling over inside the pipe
  • Guaranteed gas tight seal
  • UV and temperature resistant up to 330ºC continuously or 450ºC for short periods
  • Suitable for purging pipes, elbows and fittings
  • The silicon seal units can be separated and used as a gas finger and pipe stopper respectively
  • Fully interchangeable and individually exchangeable system, reducing cost of ownership