Dairy fittings are specialized fittings used in the food and beverage industry for hygienic applications. They are designed to meet the strict cleanliness and safety standards of the industry and are made from materials that are resistant to corrosion and bacteria growth. Here are some of the most common grades and specifications for dairy fittings:

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1. Stainless Steel: Stainless steel is the most common material used for dairy fittings due to its high resistance to corrosion, durability, and ease of cleaning. The most common grades of stainless steel used for dairy fittings are 304 and 316. Stainless steel dairy fittings come in a range of sizes, from 1/2" to 4", and in various types, including elbows, tees, reducers, clamps, and ferrules.

2. Duplex Stainless Steel: Duplex stainless steel is a type of stainless steel that has higher strength and better corrosion resistance than regular stainless steel. It is commonly used in harsh environments where there is a risk of corrosion or erosion. The most common grades of duplex stainless steel used for dairy fittings are 2205 and 2507. Duplex stainless steel dairy fittings come in a range of sizes and types, including elbows, tees, reducers, and clamps.

3. Hastelloy: Hastelloy is a nickel-based alloy that has high resistance to corrosion and can withstand extreme temperatures and pressures. It is commonly used in the food and beverage industry for its excellent resistance to sulfuric acid and other corrosive substances. The most common grades of hastelloy used for dairy fittings are C276 and C22. Hastelloy dairy fittings come in a range of sizes and types, including elbows, tees, reducers, and clamps.