Flow rate?

Flow rate of pump is 1500l/h through 1.6cm nozzle. Nozzle was reduced to 1.3cm and connected to 9mm pipe. the pipe goes straight up for about 1.2m before curving and going straight down for 5cm and coming out a 1inch 90° nozzle. What is the flow rate when it comes out the end or how would i calculate it?