Gate valve system
AssigneeSaudi Arabian Oil Company
InventorMohanned Tarabzouni
Life of this patent
Estimating the term…
Abstract
A valve system includes a gate valve that includes a lower body that defines a first through-hole and a second through-hole. The valve system further includes a side valve assembly. The side valve assembly includes a first valve configured to be fluidly coupled to the first through-hole of the lower body, a second valve configured to be fluidly coupled to the second through-hole of the low body, and an injection fitting configured to be fluidly coupled to the lower body of the gate valve. The injection fitting is configured to receive a sealing fluid to be flowed to the lower body of the gate valve to seal at least one of the first sealing seat or the second sealing seat.
Claims20
A valve system, comprising:
- a gate valve comprising a lower body configured to be disposed between and fluidly coupled to a first pipe and a second pipe, the first pipe upstream of the lower body and the second pipe downstream of the lower body, wherein the lower body comprises a first sealing seat and a second sealing seat, the lower body defines a first through-hole and a second through-hole on a side of the lower body, the first through-hole is upstream of the first sealing seat, and the second through-hole is downstream of the second sealing seat;
- and
- a side valve assembly comprising:
- a first valve configured to be fluidly coupled to the first through-hole of the lower body;
- a second valve configured to be fluidly coupled to the second through-hole of the low body;
- and
- an injection fitting configured to be fluidly coupled to the lower body of the gate valve through at least one of the first valve or the second valve, the injection fitting configured to receive a sealing fluid to be flowed, with at least one of the first valve or the second valve opened, to the lower body of the gate valve to seal at least one of the first sealing seat or the second sealing seat.
A method, comprising:
- providing a valve system, comprising:
- a gate valve comprising a lower body configured to be disposed between and fluidly coupled to a first pipe and a second pipe, the first pipe upstream of the lower body, the second pipe downstream of the lower body, the lower body comprising a first sealing seat and a second sealing seat, the lower body defining a first through-hole and a second through-hole on a same side of the lower body, the first through-hole upstream of the first sealing seat and the second through-hole downstream of the second sealing seat;
- and
- a side valve assembly comprising:
- a first valve configured to be fluidly coupled to the first through-hole of the lower body;
- a second valve configured to be fluidly coupled to the second through-hole of the lower body;
- a third valve configured to be fluidly coupled to the lower body of the gate valve through at least one of the first valve or the second valve;
- and an injection fitting configured to be fluidly coupled to the lower body of the gate valve through at least one of the first valve or the second valve;
- and
- either bleeding the gate valve through the third valve or injecting a sealing fluid through the injection fitting to seal at least one of the first sealing seat or the second sealing seat.
A valve system, comprising:
- a gate valve comprising a lower body configured to be disposed between and fluidly coupled to a first pipe and a second pipe, the first pipe upstream of the lower body and the second pipe downstream of the lower body, wherein the lower body comprises a first sealing seat and a second sealing seat, the lower body defines a first through-hole and a second through-hole on a same side of the lower body, the first through-hole is upstream of the first sealing seat, and the second through-hole is downstream of the second sealing seat;
- and
- a side valve assembly comprising:
- a first valve configured to be fluidly coupled to the first through-hole of the lower body;
- a second valve configured to be fluidly coupled to the second through-hole of the low body;
- a third valve configured to be fluidly coupled to the lower body of the gate valve through at least one of the first valve or the second valve;
- and
- a threaded plug configured to be removably coupled to an outlet of the third valve,
- wherein the threaded plug is configured to be removed from the outlet of the third valve to open the third valve to an ambient environment to allow, with the third valve and at least one of the first valve or the second valve opened, draining of the lower body of the gate valve.
Dependencies are inferred from the claim text.