Ignition reducing shut-off valve

A shut-off valve for controlling flow of a pressurized gas, comprising:

• a body defining a passage extending between a gas inlet and a gas outlet, and a sealing member arranged to, in a first position, close a mouth of the passage into the gas outlet, and in a second position, leave a first gap to the mouth of the passage to allow gas to flow between the gas inlet and the gas outlet through the passage,
• an elongated restrictor arranged in the passage, the restrictor being displaceable in a longitudinal direction of the passage, and having a first and a second axial end, and
• a biasing element configured to bias the first end of the restrictor such that the second end is in contact with the sealing member,
• wherein:
• the second axial end of the restrictor extends in a radial direction of the passage to essentially cover the mouth of the passage, thereby being arranged to shield the sealing member from the passage in the longitudinal direction, and
• the restrictor includes a guiding element configured to guide a gas flow between the gas inlet and the gas outlet when the sealing member is in the second position, the guiding element extending in the longitudinal direction of the restrictor and being arranged to allow gas to leave the passage in a radial direction of the restrictor.