초록 ▼

A valve assembly includes a bonnet that is captivated in a valve body stem mount by means of a threaded bonnet nut. A pair of opposed pry holes are formed in the bonnet at a point above the top of the fully seated bonnet nut. Loosening of the bonnet nut enables a bonnet that is stuck in the body ste

A valve assembly includes a bonnet that is captivated in a valve body stem mount by means of a threaded bonnet nut. A pair of opposed pry holes are formed in the bonnet at a point above the top of the fully seated bonnet nut. Loosening of the bonnet nut enables a bonnet that is stuck in the body stem mount to be pried loose with a pry bar inserted in one or both of the pry holes and levered against the top of the bonnet nut. The bonnet holes also provide a visual indication of movement of the bonnet and whether there is pressure in the valve body.

대표청구항 ▼

A high pressure valve comprising: a body; a bonnet; seal means for sealing said bonnet to said valve body; a bonnet nut for securing said bonnet in said body; and means including an aperture in said bonnet above said bonnet nut to permit levering of said bonnet against said bonnet nut by a suitable

A high pressure valve comprising: a body; a bonnet; seal means for sealing said bonnet to said valve body; a bonnet nut for securing said bonnet in said body; and means including an aperture in said bonnet above said bonnet nut to permit levering of said bonnet against said bonnet nut by a suitable tool means cooperating with said aperture when said bonnet nut is loosened relative to said body for permitting said bonnet when said bonnet is stuck in said body to be pried loose from said body for easy disassembly of said bonnet from said body.