|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||137/5157 ; 137/5274 ; 137/5278|
|발명자 / 주소|
|인용정보||피인용 횟수 : 1 인용 특허 : 7|
A swing check valve having a readily replaceable valve seat and having a cage surrounding the disc in the final closing movement of the disc sized to guide the disc evenly onto the seat.
A swing check valve, comprising: a tubular valve body having an annular shoulder formed therein facing one end of the valve body, said shoulder having a pair of hinge pin recesses therein facing in the same direction as the shoulder; a substantially round disc in the body having a seating face thereon and a hinge pin thereon extending parallel with the seating face thereof, the opposite end portions of the hinge pin journalled in said hinge pin recesses to pivotally support the disc in the valve body; and a replaceable valve seat in the valve body abutti...