Are all Boston valves the same size?
Always Carry a Spare! This pack of Boston Valves includes two different sized valves. One of them will fit your Airhead Boston Valve Equipped Inflatables. The square bases are much easier to turn than round bases, especially with wet hands. Includes two types of Boston Valves to fit most brands of towables including Airhead, SportsStuff, Sevylor, Connelly, and Rave. Valve 1 measures 0. D x 0. Valve 2 measures 0. D x 0.
Does valve size matter?
Correct valve sizing is crucial for several reasons. We cover some of them below. Limiting pressure drop is an essential consideration; therefore, the valve must be appropriately sized to accommodate the required flow rate while preventing excessive pressure drop or loss within the system. Again, an oversized valve will result in a high stroke count, which over time will wear down your valve trim and packing much faster than it should under normal operation. This can lead to deterioration of the trim, resulting in poor performance and potential environmental issues.
How to identify valve size?
Valve body size: Measure the distance between the two flanges or connecting points of the valve. This measurement helps determine the size of the valve body. Port size: Measure the internal diameter of the valve’s flow passage. This measurement represents the port size and affects the flow rate through the valve. Valve Size: The valve pipe size is often simply noted in inches, however, you may also find the pipe size noted with a DN prefix. This stands for “diameter nominal” and the number following the prefix is the valve pipe size in millimeters.The most common markings indicate the ball valve’s size. For example, DN40 indicates the ball valve has a 40 mm port.