Connections 1. Crest Decoking / Descaling equipment (launcher / receiver, valves and spools), are flanged to 300# ASA. Various spools are available or manufactured to allow connection to the client’s requirements. 2. A pressure relief valve is fitted to the pump discharge of the Crest pumping unit and is set to the Safe Working Pressure of the Crest equipment or set to the SWP of the system that is being worked on. 3. The launcher / receiver must be connected in a horizontal position or as near as physically possible. | 
