Abstract: A multi-way valve includes an upper valve body, a lower valve body and a rotary valve core. The upper valve body and the lower valve body are provided respectively with an upper mounting hole and a lower mounting hole. The rotary valve core is provided passing through the upper mounting hole and the lower mounting hole, respectively. The rotary valve core is formed with a first stepped surface facing toward the upper valve body, and an adjusting nut, which is located below the rotary valve core, is provided in the lower mounting hole. The rotary valve core is moved up and down axially by adjusting the adjusting nut such that an axial clearance between the first stepped surface and the upper valve body is adjusted, so the rotary valve core may flexibly rotate at different temperatures to prevent the multi-way valve from being stuck.

Abstract: Multi-position valve and a multi-position valve skid. The multi-position valve comprises an upper valve body, a lower valve body, and a rotary valve core that includes a valve core body and a protruding part and has an oil-directing passageway through the protruding part and the valve core body. The lower valve body has oil inlet passageways through lower end and upper ends. The oil outlet of the oil inlet passageway is on a circle having a radius of the distance from the oil inlet of the oil-directing passageway to its axis, the center of the circle being the axis of the valve core body. When the valve core body rotates, the oil-directing passageway can abut any of the oil inlet passageways. The oil inlet passageways in the multi-position valve run to the lower end of the lower valve body, such that after being connected.

Abstract: The multi-way valve comprises an upper valve body, a lower valve body and a rotary valve core. A valve seat ring is located in the rotary valve core and comprises a body. A first annular boss is arranged on an outer wall of the body, and a second annular boss is arranged on an inner wall. The upper surfaces of the first annular boss and the second annular boss are respectively flush with the upper surface of the body to form a sealing surface which fits with a sealing surface of the upper valve body in a sealed manner. An annular gap is formed between the lower surface of the first annular boss and the rotary valve core, so that liquid in the chamber and an oil incoming channel respectively acts on the lower surface of the first annular boss or the second annular boss to form a sealing load.

Abstract: Multi-position valve and a multi-position valve skid. The multi-position valve comprises an upper valve body, a lower valve body, and a rotary valve core that includes a valve core body and a protruding part and has an oil-directing passageway through the protruding part and the valve core body. The lower valve body has oil inlet passageways through lower end and upper ends. The oil outlet of the oil inlet passageway is on a circle having a radius of the distance from the oil inlet of the oil-directing passageway to its axis, the center of the circle being the axis of the valve core body. When the valve core body rotates, the oil-directing passageway can abut any of the oil inlet passageways. The oil inlet passageways in the multi-position valve run to the lower end of the lower valve body, such that after being connected.

Abstract: A multi-way valve includes an upper valve body, a lower valve body and a rotary valve core. The upper valve body and the lower valve body are provided respectively with an upper mounting hole and a lower mounting hole. The rotary valve core is provided passing through the upper mounting hole and the lower mounting hole, respectively. The rotary valve core is formed with a first stepped surface facing toward the upper valve body, and an adjusting nut, which is located below the rotary valve core, is provided in the lower mounting hole. The rotary valve core is moved up and down axially by adjusting the adjusting nut such that an axial clearance between the first stepped surface and the upper valve body is adjusted, so the rotary valve core may flexibly rotate at different temperatures to prevent the multi-way valve from being stuck.

Abstract: Disclosed are a valve seat ring and a multi-way valve having the valve seat ring. The multi-way valve comprises an upper valve body, a lower valve body and a rotary valve core, wherein the valve seat ring is located in the rotary valve core, the valve seat ring comprises a body, the body is provided with a penetrated through-hole, a first annular boss is arranged on an outer wall of the body, and a second annular boss is arranged on an inner wall; the upper surfaces of the first annular boss and the second annular boss are respectively flush with the upper surface of the body to form a sealing surface which fits with a sealing surface of the upper valve body in a sealed manner; and an annular gap is formed between the lower surface of the first annular boss and the rotary valve core, so that liquid in the chamber and an oil incoming channel respectively acts on the lower surface of the first annular boss or the second annular boss to form a sealing load.

Abstract: An oil and gas collection and transmission system for petroleum, chemical industry, and so on, includes a multi-way valve with a fan-shaped flow channel sealing pair to measure production of an individual well to obtain the dynamic production data of an oil well. The multi-way valve with fan-shaped flow channel sealing pair includes a floating gating ring that is applied with contact specific pressure by an elastic component and an upper porous plane body form a gating plane sealing pair; a plurality of fan-shaped flow channel oil inlet holes are annularly and uniformly distributed on a mating surface of the upper porous plane body; the floating gating ring is configured such that it changes gradually from the upper fan-shaped flow channel to the lower round-shaped flow channel; and the inner part of the middle rotary spool is used as a public flow-guide passage.

Abstract: The present invention is an electronic system which can select high-precision positions by an electronic code disk position selecting device. The device includes an active spindle (1), a code disk (2), a circuit board (4), photoelectric coupling tubes (3) formed on the circuit board, a circuit board support (5), a bolt (6) for fixing the code disk and the active spindle, and a bolt (7) for fixing the circuit board support, wherein graduation slots are formed on the mechanical code disk, an electronic unit is formed on the circuit board for collecting position signals and controlling the code disk, and the photoelectric coupling tubes receive the information at different graduation slots of the rotating mechanical code disk to determine each of the collected positions. Optical signals collected by the photoelectric coupling tubes are converted into electric signals directly, and then input to a programmable controller for deciding which position is to be selected in association with a predefined code.

Abstract: The present utility model relates to an oil and gas collection and transmission system for petroleum, chemical industry and so on. A multi-way valve with fan-shaped flow channel sealing pair measures in turn the production of an individual well to obtain the dynamic production data of an oil well. The multi-way valve with fan-shaped flow channel sealing pair is characterized in that: a floating gating ring that is applied with contact specific pressure by an elastic component and an upper porous plane body form a gating plane sealing pair; a plurality of fan-shaped flow channel oil inlet holes are annularly and uniformly distributed on a mating surface of the upper porous plane body; the floating gating ring is configured such that it changes gradually from the upper fan-shaped flow channel to the lower round-shaped flow channel; and the inner part of the middle rotary spool is used as a public flow-guide passage.