Aluminum 2 1/2" Female Camlock x 2 1/2" Male NH High Pressure Camlock Size_1 inch Steel king combination nipple is

Steel king combination nipple is recommended for low-pressure discharge and suction service for compatible liquids

and how far you can go

for example

Equivalent part number - FM1515

General purpose

Aluminum 2 1/2" Female Camlock x 2 1/2" Male NH High Pressure Camlock Size_1 inch Steel king combination nipple isHigh pressure type "B" aluminum 2 1 2 inch female camlock (Cam & Groove) coupler to 2 1 2 inch male NH threads. Under no circumstances should cam and groove couplings be used for compressed air or steam service! Connections The Female side of this adapter will only connect to 2 1 2 inch male camlock The male threaded side of this adapter will only connect to a 2 1 2 inch female National Hose (NH) or National Standard Thread (NST) The most common