The Cherne 4" Stainless Steel Econ-O-Grip plug (part #273-348) is a chemical-resistant blocking plug for 4" pipe in petroleum and chemical environments. Nitrile rubber O-ring with stainless steel hardware provides chemical and corrosion resistance. Rated for 2 PSI maximum — not for pressure testing. Use in refineries, chemical plants, and industrial facilities where standard plugs would degrade.

Key Features

• Chemical-resistant nitrile rubber O-ring — resists petroleum and chemical degradation
• Stainless steel hardware — won’t corrode in harsh industrial environments
• 2 PSI maximum — low-pressure blocking only
• Not for pressure testing — for blocking and pipe covers only
• Wing nut expansion — no tools required

Technical Specifications

Applications

Low-pressure pipe blocking in petroleum refineries, chemical processing plants, industrial facilities, and any environment where standard galvanized hardware or natural rubber would degrade. Not for pressure testing — the Petro Econ-O-Grip is a blocking and dust cover plug for chemically aggressive environments.

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