A new four-way stop valve

Abstract

The utility model discloses a novel four-way stop valve, including silk bolt, nut, bonnet, middle flange steel ring, valve stem, valve stem head, valve seat sealing ring, valve seat, o ring, valve body, hand wheel, indicator, shield, connecting sleeve, packing gland, valve stem packing, stop ring, internal hexagonal cylindrical head screw. The novel four-way stop valve adopts four -way interface, is connected with the field pipeline through bolt, and the overall structure is compact, can save the installation space, is favorable to arrange the on -the -spot liquid discharge operation, and the valve body adopts the integral forge piece, and the material strength is higher, and the safety is better, and the valve stem head adopts the conical design, and the valve seat cone surface is attached seal, and the fluid resistance is smaller to cut off, furthermore, the valve stem head and valve stem are split design, and the replacement or maintenance sealing surface is simple and quick, saves the maintenance work hour and cost.

Description

Technical Field

[0001] This utility model relates to the field of gate valve technology, specifically to a novel four-way gate valve. Background Technology

[0002] Gate valves are among the most widely used fluid control devices, their core function being to control the flow of media in pipelines through opening and closing movements. However, current gate valve systems still face several technical limitations in practical engineering applications: First, a single valve only controls a single pipeline; multi-pipeline systems require multiple independent valve units, increasing system complexity. Second, conventional flange connections require significant installation space, leading to insufficient adaptability in compact equipment or confined working environments. Particularly for space-constrained piping systems, the standardized interface designs of existing gate valves often fail to meet the demands of compact installation. Summary of the Invention

[0003] The purpose of this utility model is to provide a new type of four-way shut-off valve, which is designed for the multi-pipeline control needs of wellhead equipment. This valve realizes the functions of precise cut-off and flow direction switching of multiple channels through an integrated flow channel structure. It adopts a composite sealing system and modular compact design, which can meet the fluid control requirements of narrow installation space in complex operating environments.

[0004] Given the shortcomings of previous gate valves, this paper presents a new type of four-way gate valve with four channels in the valve body, which meets the usage requirements while solving the problems.

[0005] This utility model provides the following technical solution: A novel four-way shut-off valve, comprising a valve seat (8) mounted inside a valve body (10), the valve seat (8) and the valve body (10) being sealed by a valve seat sealing ring (7) and an O-ring (9), the valve seat (8) and the valve stem head (6) being tightly fitted together to achieve the function of shutting off the fluid, the valve stem head (6) and the valve stem (5) being connected by threads, with a stop ring (17) designed in the middle to prevent the threads from loosening, and the valve body (10) and the valve cover (3) being connected by a threaded bolt (1). The valve stem (5) and nut (2) are connected and sealed by the middle flange steel ring (4). The valve stem (5) and valve cover (3) are sealed by valve stem packing (16), and the valve stem packing (16) is fixed by packing gland (15). The valve cover (3) is designed with a connecting sleeve (14) on the upper part and is fixed by hexagonal head screw (18). The protective cover (13) is connected to the connecting sleeve (14) by thread to protect the indicator (12). The handwheel (11) is connected to the valve stem (5).

[0006] Preferably, the valve seat (8) and the valve body (10) are sealed by a valve seat sealing ring (7) and an O-ring (9).

[0007] Preferably, the valve stem head (6) and the valve stem (5) are connected by a thread, and a stop ring (17) is designed in the middle.

[0008] Preferably, the valve body (10) and the valve cover (3) are connected by threaded bolts (1) and nuts (2), and sealed by a middle flange steel ring (4).

[0009] Preferably, the valve stem (5) and the valve cover (3) are sealed with valve stem packing (16), and the valve stem packing (16) is fixed with packing gland (15).

[0010] Preferably, the cover (13) is threaded onto the connecting sleeve (14) to protect the indicator (12).

[0011] The beneficial effects of this utility model are as follows: The novel four-way shut-off valve provided by this utility model adopts a four-channel interface and is connected to the field pipeline by bolts. The overall structure is compact, which can save installation space and facilitate the arrangement of on-site drainage operations. The valve body is made of an integral forging, which has higher material strength and better safety. The valve stem head adopts a conical design and fits and seals with the conical surface of the valve seat, which reduces the resistance to cutting off the fluid. Furthermore, the valve stem head and valve stem are designed separately, which makes it easy and quick to replace or repair the sealing surface, saving maintenance time and costs. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] In the diagram: 1. Threaded bolt; 2. Nut; 3. Valve cover; 4. Middle flange steel ring; 5. Valve stem; 6. Valve stem head; 7. Valve seat seal ring; 8. Valve seat; 9. O-ring; 10. Valve body; 11. Handwheel; 12. Indicator; 13. Protective cover; 14. Connecting sleeve; 15. Packing gland; 16. Valve stem packing; 17. Retaining ring; 18. Socket head cap screw. Detailed Implementation

[0014] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0015] As shown in the figure, this new type of four-way shut-off valve includes a valve seat (8) mounted inside the valve body (10). The valve seat (8) and the valve body (10) are sealed by a valve seat sealing ring (7) and an O-ring (9). The valve seat (8) and the valve stem head (6) are tightly fitted together to achieve the function of shutting off the fluid. The valve stem head (6) and the valve stem (5) are connected by threads, and a stop ring (17) is designed in the middle to prevent the threads from loosening. The valve body (10) and the valve cover (3) are connected by a threaded bolt (1) and a nut. (2) Connect and seal with the middle flange steel ring (4). The valve stem (5) and valve cover (3) are sealed with valve stem packing (16), and the valve stem packing (16) is fixed with packing gland (15). The valve cover (3) is designed with a connecting sleeve (14) on the upper part and is fixed with hexagonal head screws (18). The protective cover (13) is connected to the connecting sleeve (14) by threads to protect the indicator (12). The handwheel (11) is connected to the valve stem (5).

[0016] Preferably, the valve seat (8) and the valve body (10) are sealed by a valve seat sealing ring (7) and an O-ring (9).

[0017] Preferably, the valve stem head (6) and the valve stem (5) are connected by a thread, and a stop ring (17) is designed in the middle.

[0018] Preferably, the valve body (10) and the valve cover (3) are connected by threaded bolts (1) and nuts (2), and sealed by a middle flange steel ring (4).

[0019] Preferably, the valve stem (5) and the valve cover (3) are sealed with valve stem packing (16), and the valve stem packing (16) is fixed with packing gland (15).

[0020] Preferably, the cover (13) is threaded onto the connecting sleeve (14) to protect the indicator (12).

[0021] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel four-way shut-off valve, characterized in that: The valve seat (8) is mounted inside the valve body (10). The valve seat (8) and the valve body (10) are sealed by a valve seat sealing ring (7) and an O-ring (9). The valve seat (8) and the valve stem head (6) are tightly fitted together to achieve the function of stopping the flow. The valve stem head (6) and the valve stem (5) are connected by threads, and a stop ring (17) is designed in the middle to prevent the threads from loosening. The valve body (10) and the valve cover (3) are connected by a threaded bolt (1) and a nut (2). The valve stem (5) is sealed by the middle flange steel ring (4), and the valve stem (5) and valve cover (3) are sealed by valve stem packing (16). The valve stem packing (16) is fixed by packing gland (15). A connecting sleeve (14) is designed on the upper part of the valve cover (3) and fixed by hexagonal head screws (18). The protective cover (13) is threaded onto the connecting sleeve (14) to protect the indicator (12). The handwheel (11) is connected to the valve stem (5).

Images