John Guest PM10812E - 8mm O/D x 1/4" BSPT Male Swivel Tee Cent Leg

The John Guest PM10812E is a swivel tee fitting designed for use in pneumatic and fluid applications. Here's what the specifications of this fitting mean:

• 8mm O/D: This refers to the outside diameter of the tubing that the fitting is designed to be used with. In this case, the fitting is suitable for use with tubing that has an outside diameter of 8mm.
• 1/4" BSPT: This refers to the thread size and type of the male end of the fitting. In this case, the fitting has a 1/4" British Standard Pipe Taper (BSPT) thread. This type of thread is commonly used in Europe and Asia for plumbing and gas applications.
• Male Swivel Tee: This refers to the shape and design of the fitting. The fitting has three ends, with one end being a male BSPT thread and the other two ends being tube connections. The tee design means that the fitting allows flow in three directions.
• Cent Leg: This refers to the location of the male BSPT thread on the fitting. In this case, the thread is located in the center of the fitting, with the two tube connections branching off to the sides.

Overall, the John Guest PM10812E fitting is designed for use in situations where a 3-way connection is needed between tubing with an outside diameter of 8mm and a male BSPT thread connection. The swivel tee design allows for flexibility in positioning and the cent leg design makes it easy to install in a variety of configurations.