Spirax-Sarco float and thermostatic (F&T) steam traps are available in a wide variety of sizes and pressure ranges. These F&T traps are composed of a valve mechanism assembly with seat, internal thermostatic air vent, and a stainless steel float. Spirax-Sarco F&T traps feature an H pattern piping style which has an inlet and an outlet connection on both sides of the trap, allowing for more piping-in choices. They are available in pipe sizes from 3/4" to 2" and steam operating pressures from 15 to 200 psi. F&T traps feature separate orifices for condensate and air, which provide continuous condensate drainage and air venting even under conditions of zero pressure. A level connects the ball float to the valve and seat. Once condensate reaches a certain level in the trap, the float rises, opening the orifice and draining condensate. A water seal formed by the condensate prevents live steam loss. Since the discharge valve is under water, it is not capable of venting air and non-condensables. When the accumulation of air and con-condensable gases causes a significant temperature drop, a thermostatic air vent in the top of the trap discharges them.