3” Ring Gasket, 300# Class Flange, NSF-61 Certified, 1/16" Thick (Qty 10 gaskets)

Sterling Seal and Supply style NSF-61 approved green CNA gaskets are an excellent Sanitary Service Gasket Choice for your flanges. Standard flange gaskets are fabricated to be compatible with ASME/ANSI pipe flanges in accordance with dimensional criteria shown in API Standards 601 and 605. Sterling Seal supplied NSF-61 is a Compressed Sheet with Aramid Fibers, NBR Binder; It is a very good general service gasket material that has numerous applications in the process industries and in the water and wastewater industry. It is extremely cost comparable to our standard green or blue gasket material (CNA); can be used in all the same applications with the added benefit of being NSF-61 Certified. It is also commonly used in equipment such as valves and pumps. NSF-61 approved gasket material was developed to allow compliance for drinking water system components, from source to tap. Certification to NSF-61 provides assurance to a highest level that Sterling Seal supplied-NSF-61 gasket materials are safe for use in drinking water service. An added benefit is that Sterling supplied NSF-61 has a strong dielectric rating, making it ideal for isolation kit applications where compressed fiber sheet gaskets can be utilized. NSF-61 gasket material is specifically formulated to pass criteria established in NSF-61 for sealing materials, as well as providing excellent resistance to conductivity. Compressed Fiber Sheet technology provides mechanical and service characteristics unmatched by standard elastomeric grades. Whether you are looking for a new kitchen faucet or replacing or repairing an old water line, NSF certification programs can help make the product selection process easier. Certification of plumbing products and materials helps confirm that they meet applicable American or international standards for a particular use Faucets and plumbing products intended for contact with drinking water should be tested and certified to NSF/ANSI Standard 61. This American National Standard limits the amount of impurities that individual products can introduce into a home’s water supply, including lead and other metals, volatile organic chemicals, phthalates and biphenyl A (BPA). Products covered by this standard include faucets, pipe, drinking water fountains, water meters and water storage tanks. NSF also certifies water treatment, distribution and plumbing products against international regulatory, testing and certification requirements in more than 25 global markets including the USA, UK, Australia, Brazil, China, Italy, France and Japan.

• Certification to NSF-61 provides assurance to the highest level. All NSF products supplied by Sterling Seal & Supply are safe for use in drinking water service.
• Temperature: Continuous Service: 500ºF (260ºC),Maximum Service: 752ºF (400ºC), Pressure: Continuous Service: 1160 psi (80 bar) Maximum Service: 1595 psi (110 bar)
• Gasket Size 3-1/2"ID x 5-7/8"OD