APV/SPX R Series Rotary Pump SPX FLOW R Series Rotary Pumps are known all over the world for their rugged, long lasting design and efficient performance. Backed by a worldwide sales, engineering and service organization, R Series Rotary Pumps are designed and built in a modern manufacturing facility using the latest programmable automated machine tools.READ MORE. AxFlow are the official APV distributor for the UK. APV are market leaders in hygienic valves. APV valves have been designed to meet customers' priorities of problem free product flow, safe separation of fluids and ease of maintenance and cleaning. APV offers a comprehensive range of sanitary valves, including butterfly, single seat, and double. "/>Apv spx