Patent ID: 6019349
Filing Date: 2000-02-01
Classification: F16K

Abstract:
A ball valve assembly comprising:a valve body defining an inlet and an outlet, and a passageway for flow of fluid from said inlet to said outlet,a ball valve subassembly comprising a ball valve element disposed within said passageway for rotational movement between a first position allowing flow of fluid from said inlet toward said outlet and a second position resisting flow of fluid from said inlet toward said outlet, and valve components susceptible to thermal damage at a predetermined temperature below sweating temperature,a first attachment member in removable engagement with said valve body at said inlet and a second attachment member in removable engagement with said valve body at said outlet,a first tailpiece releasably secured to said valve body at said inlet by said first attachment member, anda second tailpiece releasably secured to said valve body at said outlet by said second attachment member,said first tailpiece and said second tailpiece adapted for attachment to opposed pipe ends by sweating.