Description
The purpose of the RULA Non return wafer type valve is to allow flow in a single direction, thus to stop reverse flow of product, air or fluid. The Non return valveās design allows the non-return valve to provide a positive seal during closing. The non-return valve is gravity or spring operated. Type of actuation Spring or gravity Design Features Relatively simple and very robust design with minimal movable parts Material of construction specifications - Body: Cast iron grade SG42 or 6mm thick SANS 50025 Grade S 355 JR - Disk: Cast steel grade GS38 - OR as per client requirements and specifications. Sizes - Non return valves are made to suit any size and shape to fit your plant requirements in the range fro 25NB to 100NB - Screw thread and drilling arrangement to suit plant interface Operating & Maintenance - The non-return valves are Operator and Maintenance friendly - A complete Operating & Maintenance manual is available