Steel union fitting can be divided into socket weld and screw type, according to the thread type, there are normally NPT union and BSP union.

We stock abundant of BSP pipe fittings for our Southeast Asia market, they are mostly 90 degree elbow, threaded coupling, cap, bushing, equal tee and cross. All of them are mostly in material of carbon steel, alloy steel and stainless steel.

BSP Union Dimensions
Usually we manufacture the Class 3000 threaded union according to MSS SP-83.

The size is available in 1/8″, 1/4″, 3/8″, 1/2″, 3/4″, 1″, 1 1/4″, 1 1/2″, 2″, 2 1/2″ and 3″.