The trio will be hoping to be back at the stunning Aquatics Palace in July for the major event of 2015.
The World Championships will be the first opportunity for divers to book their place at next summer’s Olympic Games.
European champion Barrow admits all this season is about gearing for that event.
“At the end of the day the long-term aim is the World Championships in Kazan,” said Barrow.
“That is the one we need to be right for. The World Series is just like a warm up for that really. Although it would be nice to get a medal, the World Champs is where we want to peak for.”
Barrow and Couch have yet to hit their top form in the synchro event, where they won Commonwealth Games silver last year.
However, Couch has impressed in the individual event at the first two World Series competitions in Dubai and Beijing. She reached the final in both legs and won bronze in Dubai.
That was one of three medals British divers won at the last World Series event, with Tom Daley claiming platform silver with a new personal best and Jack Laugher winning gold in the three-metre competition.
The British team will be hoping to impress in Kazan ahead of the London leg of the World Series over the weekend of May 1-3.
The GB team arrived in Kazan on Wednesday after spending a week at a training camp in Moscow.
Couch and Barrow will compete in the synchro event on Friday, with the individual competition taking place on Sunday.
The impressive Aquatics Palace in Kazan holds more than 4,000 people and was initially built for the 2013 World University Games.
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