Cosasco has developed a line of patented internal corrosion monitoring access fittings. By using an insert made of Hastelloy® C276, the seal seat areas and threads are protected from corrosion damage. Hastelloy® C276 is a strong passive film forming material. Consequently, as a cathode in a galvanic cell, it tends to pass very little current. This tendency and the large anode-to-cathode area ratio eliminates galvanic corrosion.

These internal corrosion monitoring fittings were subjected to rigorous independent testing by a major middle east oil company and their test results proved the merits of this design.

Specifications

• Corrosion Resistant Hastelloy® Threads and Seal Seat Areas
• Vessel Compatible Body Material for Welding Compatibility
• Especially Ideal for Bottom-Of-Line Positions
• Design Virtually Eliminates Galvanic Corrosion
• Available on any Model Access Fitting, any Tee Size
• Compatible with all Existing Equipment
• Meets Material Requirements of NACE MR0175 and MR0103

Benefits

• Corrosion resistant Hastelloy® threads and seal seat areas
• Tendency and large anode-to-cathode area ratio eliminates galvanic corrosion
• Compatible with all existing equipment
• Meets NACE MR0175 and MR0103

Applications

• Materials are chosen primarily for compatibility with the vessel material on which they are installed
• Especially common on bottom-of-line installations
• Subjected to rigorous independent testing