The air release valve 10 includes an elongate valve body 12 including an elongate pipe section 14 that has a top wall 16 and a bottom wall secured to opposite ends thereof, thus defining a cylindrical internal chamber 20 within the valve body 12. The valve body 12 further includes a baffle plate arrangement 22 dividing the internal chamber 20 into a top part 24 and a bottom part 26. The bottom wall 18 of the valve body 12 defines an inlet 38 which is connectable to a water pipeline 69. The top wall 16 defines an outlet 40 which operatively communicates with the atmosphere. A valve seat 42, including an O-ring seal 44, surrounds the outlet 40 and permits blocking of the outlet 40 by a valve closure 46, which in combination with a float 48, forms a valve closure arrangement 50 of the air release valve 10.