Abstract: A valve arrangement to ensure zero leakage from a blind flange valve is described. The blind flange valve is adapted to seal a pipeline into complete sealing according to set requirements. The base, or bottom, of the blind flange valve is in fluid communication with the inlet of an actuateable first valve that is in fluid communication with the inlet of a second actuateable valve. A fluid chamber is in fluid communication with the outlet from the first valve and the inlet of the second valve. The outlet from the second valve can be drained out, and that respective actuateable valves can be actuated by signal from predetermined sensor or sensors.

Abstract: A valve arrangement to ensure zero leakage from a blind flange valve is described. The blind flange valve is adapted to seal a pipeline into complete sealing according to set requirements. The base, or bottom, of the blind flange valve is in fluid communication with the inlet of an actuateable first valve that is in fluid communication with the inlet of a second actuateable valve. A fluid chamber is in fluid communication with the outlet from the first valve and the inlet of the second valve. The outlet from the second valve can be drained out, and that respective actuateable valves can be actuated by signal from predetermined sensor or sensors.

Abstract: A pipe insulating assembly for heat insulating at least two substantially parallel pipes (1, 2), which assembly comprises an outer insulating element (11) commonly surrounding the pipes (1, 2). The assembly also comprises an inner insulating element (10) arranged between the pipes (1, 2) and being surrounded by said outer insulating element (11). The inner insulating element (10) has better heat insulating properties than the outer heat insulating element. A method for insulating at least two substantially parallel pipes (1, 2) comprising outer and inner insulating elements is also disclosed.