The main components are forged. Forged steel stop valves have three types of middle cavity seals: bolted bonnet, welded bonnet, and
middle cavity pressure self-tightening seal structure.
A bolted bonnet means that the valve body and bonnet are connected with bolts and nuts and sealed with a wound gasket (made of stainless steel wire clips and flexible graphite). Metal ring connection can also be used when customers have special requirements.
Welded bonnet means that the valve body and bonnet are connected with threads and fully welded. A full penetration connection can also be used when customers have special requirements.
The middle cavity of 9001b, 1500Ib, 2500Ib, and 45001b can also adopt a pressure self-tightening seal structure. The sealing performance
increases with the increase of internal pressure and has high reliability.
The medium channel in the valve body is tortuous, the fluid resistance is large, and the power consumption is large.
The sealing surface is not easy to wear and scratch and has good sealing performance. There is no relative sliding between the valve disc
and the sealing surface of the valve body when opening and closing, so the wear and scratch are not serious, the sealing performance is
good, and the service life is long.
Flexible graphite packing is used, the sealing is reliable, and the operation is light and flexible.
The medium of the stop valve can only flow in one direction and cannot change the flow direction. During installation, pay attention to the
direction of the medium flow and the direction of the arrow on the valve body.
The packing replacement and maintenance can be carried out in a state of shutdown, which is convenient and quick and does not affect the operation of the system.
The shape is simple, the structure length is short, the manufacturing process is good, and the application range is wide.
Main material: carbon steel, stainless steel, alloy steel
Nominal diameter: NPS1/4”~NPS3” DN6~DN80
Pressure range: Cl150~CL4500 PN10 ~ PN760
Working temperature: -196℃ ~ +600℃
Application range: tap water, sewage, construction, petroleum, chemical industry, food, medicine, textile, electricity, shipbuilding, metallurgy, energy system, etc.
◎ Design standard: API 602/BS5352
◎ Structural length: Socket welding threaded end riveted structural length according to factory standard
◎ Flanged end butt welding end hoeing net according to ASME B16.10
◎ Connection standard: ASME B16.11, ASME B1.20.1, ASME B16.5, ASME B16.25
◎ Wall thickness standard: API 602
◎ Pressure test: API 602, API 598
◎ Pressure and temperature level: ASME B16.34
The Side Entry Cryogenic Trunnion Mounted Ball Valve fixed ball valve is a type of fixed ball valve that adopts an upper mounted structure. The ball is installed and disassembled through the upper part of the valve body, and can work stably under ultra-low temperature conditions. When closed, the valve stem drives the ball to rotate, making the hole on the ball perpendicular to the valve body channel, thereby cutting off the medium; When opened, the valve stem drives the ball to rotate 90 °, aligning the hole on the ball with the valve body channel, and the medium can pass through.
The Insulation Jacket Ball Valve is specially designed for pipeline systems that require maintaining the temperature of the medium. It is made of high-quality stainless steel or carbon steel and combines with precise processing technology to ensure reliable sealing and smooth control under high-temperature and high-pressure conditions. The valve body adopts a jacketed insulation structure and can be filled with steam or heat transfer oil, effectively reducing heat loss. It is suitable for high-temperature fluid transportation systems in industries such as chemical, petroleum, heat supply, and pharmaceuticals. The structure is compact, the opening and closing is rapid, the sealing performance is excellent, and it is an ideal control valve for high-temperature fluid pipelines.
The API 6A High Pressure Slab Gate Valve is specially designed for high-pressure pipeline systems in industries such as petroleum, natural gas, and chemical engineering. It features a valve body made of high-quality alloy steel, which is precisely machined and rigorously tested to ensure reliable performance under high pressure, high temperature, and corrosive medium conditions. The unique flat gate plate design enables two-way sealing, allowing for flexible opening and closing with low flow resistance. It is an ideal choice for long-distance pipelines, refining and chemical plants, and high-pressure fluid control systems.