1. The strainer is called Y-Pattern Strainer as its strainer screen and valve body form a sharp angle like the letter "Y". 2. Y-Pattern Strainer is usually composed of valve body, double-layer stainless steel filter screen as well as seal washer. 3. The core part of filter is strainer screen which is composed of strainer screen frame and stainless steel wire. 4. Y-Pattern Strainer is a product that separates solid particles from fluid, improves purity of product, and guarantees equipment safety.