Non-Return Valves     We have two types of Stainless Steel Hygienic Non-Return Valves available off the shelf, these are: Nocado 770N: 3-Piece Bolt together Body, Butt-Weld end connections, Spring Assisted design. This valve is a high quality product designed for use on critical applications where only the best will do. Sizes 1" up to 4". ETG H-CK-1: 2-Piece Clamp together Body, Butt-Weld end connections, Spring Assisted design. This valve is designed for use on non-critical applications and provides both performance and value. Sizes 1" up to 4".   Home | Butterfly | N/R | Sight | Ball | Strainers | Drain | Others