| 摘要 |
#CMT# #/CMT# The valve i.e. check valve (19), has a body, and a shutter (18) moved inside the body, where the body has a shell (20) and a liner (21) made of plastic material covering an internal face of the shell and delimiting a cavity (38). The body comprises another shell (64) and another liner (51) made of plastic material covering an internal face of the latter shell and delimiting another cavity (66) which communicates with the former cavity. The shutter is mounted such that the shutter is translationally moved in the cavity between a closing position and an opening position of the valve. #CMT# : #/CMT# The shutter has a coated metal structure with plastic material. The shell is made of metal or plastic. #CMT#USE : #/CMT# Valve i.e. check valve, for fluid transport pipes for transport of water e.g. brackish water or sea water, under pressure. #CMT#ADVANTAGE : #/CMT# The valve can be manufactured, utilized and maintained in a simple manner. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic longitudinal sectional view of a valve with a shutter in a closing position. 18 : Shutter 19 : Check valve 20, 64 : Shells 21, 51 : Liners 38, 66 : Cavities #CMT#POLYMERS : #/CMT# The tubular liner is made of polyethylene, polypropylene, polyamide, PVC and PTFE. |
