A pipe connector for interconnecting an inner flow space of a first double wall pipe, an inner flow space of a second double wall pipe and a third pipe, which pipe connector comprises: - a connector body, - a first fitting connectable to the first double wall pipe, the first fitting comprising a first portion connectable to the inner flow space and a second portion connectable to the outer flow space of the first double wall pipe, - a second fitting connectable to the inner flow space of the second double wall pipe, - a third fitting comprising a first portion and a second portion, which first portion is connectable to the third pipe, - a flow channel arranged in the connector body for interconnecting the first portion of the first fitting, the second fitting and the first portion of the third fitting, - a leak channel arranged in flow connection with the second portion of the first fitting, - a leakage outlet for discharging fluid from the leak channel, - a discharge channel extending from the second portion of the third fitting to the leakage outlet and providing a continuous flow connection therebetween, - a closure member having a first position, in which flow of fluid from the leak channel to the leakage outlet is prevented, and a second position, in which flow of fluid from the leak channel to the leakage outlet is allowed, which closure member is arranged to move from the first position to the second position when fluid pressure in the leak channel rises above a certain limit, - blocking means for preventing flow of fluid from the outer flow space of the second double wall pipe from passing through the pipe connector, and - a branching point for dividing the flow channel into three branch channels (61, 62, 63), wherein a first branch channel extends from the branching point to the first fitting, a second branch channel extends from the branching point to the second fitting and a third branch channel extends from the branching point to the third fitting, characterised in that the third branch channel is provided with throttling means, through which fluid is arranged to flow to the third fitting. - a connector body, - a first fitting connectable to the first double wall pipe, the first fitting comprising a first portion connectable to the inner flow space and a second portion connectable to the outer flow space of the first double wall pipe, - a second fitting connectable to the inner flow space of the second double wall pipe, - a third fitting comprising a first portion and a second portion, which first portion is connectable to the third pipe, - a flow channel arranged in the connector body for interconnecting the first portion of the first fitting, the second fitting and the first portion of the third fitting, - a leak channel arranged in flow connection with the second portion of the first fitting, - a leakage outlet for discharging fluid from the leak channel, - a discharge channel extending from the second portion of the third fitting to the leakage outlet and providing a continuous flow connection therebetween, - a closure member having a first position, in which flow of fluid from the leak channel to the leakage outlet is prevented, and a second position, in which flow of fluid from the leak channel to the leakage outlet is allowed, which closure member is arranged to move from the first position to the second position when fluid pressure in the leak channel rises above a certain limit, - blocking means for preventing flow of fluid from the outer flow space of the second double wall pipe from passing through the pipe connector, and - a branching point for dividing the flow channel into three branch channels (61, 62, 63), wherein a first branch channel extends from the branching point to the first fitting, a second branch channel extends from the branching point to the second fitting and a third branch channel extends from the branching point to the third fitting,