Petersen, 310-110-XL, Temperature Pressure Plug, 1/4" MNPT x 3", Nordel Seal
Features:
- Brass body material for non-corrosive service
- Pressure limits to 1000 psi depending on the application
- Neoprene core (red cap) for temperature range of 0-200°F, for use with natural gas and petroleum products
- Nordel core (blue cap) for a temperature range of 0-275°F, for use with hot and chilled water systems
- The valve core is self-sealing with a pressure cup for superior sealing protection
- Tested by an independent lab indicates no leaks at high or low-pressure
These plugs are permanently installed in the line at recommended test points. The cap protects the valve and provides an additional seal. After the cap has been removed, either a test thermometer or a gauge adapter with the proper pressure gauge can be inserted through the two, self-closing valves in the plug. Readings are made, adjustments or tests can be accomplished, and when the probes are withdrawn, the two valves close. The protective cap is then reinstalled. Tests should be made as quickly as possible since the valve reseal time is dependent upon the time of insertion, time, and pressure. Slower valve reseal time can be expected at lower temperatures and lower pressures.
