Pete's Plug #562 Brass Test Plug, 9/16" NFT, 1.5" Length, Neoprene Core with Buna-N O-Ring

Pete's Plug #562 Brass Test Plug, 9/16" NFT, 1.5" Length, Neoprene Core with Buna-N O-Ring

Neoprene Valve Core Designed for Consistent Sealing in Standard Conditions

Pete's Plug® test plugs provide a safe, efficient method for taking pressure and temperature readings in pressurized systems without permanently installing gauges or sensors. Designed for use with compatible probes, these plugs allow quick diagnostics while minimizing system downtime.

Each plug incorporates a self-sealing valve core that closes automatically after probe removal. A gasketed protective cap is included to help eliminate minor leakage and to deter unintended removal. Pete's Plugs are suitable for use with gases and liquids compatible with the selected valve material, making them a versatile solution for HVAC, hydronic heating and cooling, natural gas, and industrial piping applications.

Why Choose Pete's Plug®

• The original pressure and temperature test plug, invented in the 1960s
• Trusted by professionals for over 55 years
• Over 40 million plugs sold worldwide
• Proudly manufactured and hand-assembled in the USA

Key Features & Benefits

• Allows temporary pressure or temperature measurement without permanent instrumentation
• Self-sealing valve core helps reduce leakage after probe removal
• Gasketed protective cap helps minimize seepage and prevent contamination
• Compatible with standard pressure and temperature probes
• Rated up to 1500 psig when properly installed and operated within specifications
• Available with multiple valve materials to match temperature and media requirements
• Buna-N O-ring provides a reliable seal on straight-thread (NFT) connections

Neoprene Valve Core Features

• Neoprene® self-sealing valve core
• Continuous temperature range: -40 °F to 150 °F (static with cap on)
• Maximum intermittent temperature: 200 °F
• Reliable sealing performance for moderate-temperature applications
• Suitable for compatible gases and liquids within specified limits

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