Brass 1 1/4" Male Camlock x 1 1/4" Female NPT Pick One Side_1 1/2 inch and valve is opened

and valve is opened

The female camlock cap will only fit a 1 inch male camlock

Chemical Fire Protection

and many chemicals

Wildland / Forestry Firefighting

Brass 1 1/4" Male Camlock x 1 1/4" Female NPT Pick One Side_1 1/2 inch and valve is openedGlobal type "A" Brass 1 1 4 inch male camlock (Cam & Groove) coupler to 1 1 4 inch female inch NPT threads. Under no circumstances should cam and groove couplings be used for compressed air or steam service! Connections The male side of this adapter will only connect to a 1 1 4 inch female camlock The female threaded side of this adapter will only connect to a 1 1 4 inch male National Pipe Tapered (NPT) thread, for example, PVC or metal pipe fitting