fine oilfield & marine supply offer the following features.

Minimum flow restriction
Available for standard and sour service
All sizes are available in 8 styles, for 360 rotation in 1, 2 or 3 planes
Heavy duty hex head style ball loading plug
Grease retainer ring (ensures clean ball race)
Standard packing units (operating temperature to 225 °F)
Superior hardened ball races ensure uniform surface hardness and depth for longer life under severe thrust and radial loading
Other end connections are available on request