A valve, comprising: a valve housing body extending along a central longitudinal axis X between a first end and a second end; said valve housing comprising: a first chamber at said first end comprising a gas inlet for receiving a gas and a second chamber at said second end having a plug provided at said second end, and an inter-chamber passageway connecting said first chamber to said second chamber, said valve further comprising: a gas outlet provided in said inter-chamber passageway, and a piston provided in said inter-chamber passageway, said piston being movable between a first position wherein said outlet is blocked by said piston and a second position wherein said outlet is not blocked by said piston; and wherein said plug has a ventilation passageway extending therethrough; and wherein said valve further comprises a bypass channel configured to fluidly connect the first chamber to said second chamber; and wherein said bypass channel and said ventilation passageway are not aligned with each other; wherein said bypass channel extends through a sidewall of said valve housing; and characterised in that the bypass channel is blocked by the piston when the piston is in said first position. a valve housing body extending along a central longitudinal axis X between a first end and a second end; said valve housing comprising: a first chamber at said first end comprising a gas inlet for receiving a gas and a second chamber at said second end having a plug provided at said second end, and an inter-chamber passageway connecting said first chamber to said second chamber, said valve further comprising: a gas outlet provided in said inter-chamber passageway, and a piston provided in said inter-chamber passageway, said piston being movable between a first position wherein said outlet is blocked by said piston and a second position wherein said outlet is not blocked by said piston; and wherein said plug has a ventilation passageway extending therethrough; and wherein said valve further comprises a bypass channel configured to fluidly connect the first chamber to said second chamber; and wherein said bypass channel and said ventilation passageway are not aligned with each other; wherein said bypass channel extends through a sidewall of said valve housing; and characterised in that the bypass channel is blocked by the piston when the piston is in said first position. a first chamber at said first end comprising a gas inlet for receiving a gas and a second chamber at said second end having a plug provided at said second end, and an inter-chamber passageway connecting said first chamber to said second chamber, said valve further comprising: a gas outlet provided in said inter-chamber passageway, and a piston provided in said inter-chamber passageway, said piston being movable between a first position wherein said outlet is blocked by said piston and a second position wherein said outlet is not blocked by said piston; and wherein said plug has a ventilation passageway extending therethrough; and wherein said valve further comprises a bypass channel configured to fluidly connect the first chamber to said second chamber; and wherein said bypass channel and said ventilation passageway are not aligned with each other; wherein said bypass channel extends through a sidewall of said valve housing; and characterised in that the bypass channel is blocked by the piston when the piston is in said first position. a gas outlet provided in said inter-chamber passageway, and a piston provided in said inter-chamber passageway, said piston being movable between a first position wherein said outlet is blocked by said piston and a second position wherein said outlet is not blocked by said piston; and wherein said plug has a ventilation passageway extending therethrough; and wherein said valve further comprises a bypass channel configured to fluidly connect the first chamber to said second chamber; and wherein said bypass channel and said ventilation passageway are not aligned with each other; wherein said bypass channel extends through a sidewall of said valve housing; and characterised in that the bypass channel is blocked by the piston when the piston is in said first position.