3″ & 4″ transfer pumps with high pressure close vaned impellers manual petrol drive specification diesel drive specification troubleshooting guide spares QP402 SX/SL (includes QP310 SX/SL) – 3″ &  4″ transfer pumps with closed vane impellers (for pumps with open vane impellers see Transfer Pump spares) Guide to replacing the key parts on a QP pump … Continue reading High Pressure Transfer Pump Spares