A valve arrangement for injection of an injection fluid in a process fluid tubing, comprising an inlet part connectable to an injection fluid source, an outer housing that is connectable to a process fluid tubing and comprising at least one outlet opening that enables a fluid communication between an interior of the outer housing and a process fluid tubing, and a first valve device comprising a first valve member that is arranged in the outer housing and movable within the outer housing in a longitudinal direction, and said first valve member is arranged to control an inflow of injection fluid into the valve arrangement by being movable between a closed position and an open position.