Shanghai Jianggong Valve Manufacturing Co., Ltd.
Shanghai Jianggong Valve Manufacturing Co., Ltd. Industrial valve expert With safe and reliable products To provide you with thoughtful services
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ANSI Standard 800LB Cast Steel Stainless Steel Swing Type Forged Check Valve
Product introduction:
Check valve also known as automatic safety mechanism called a is used to allow fluids and gases to flow in one direction while preventing reverse flow. These valves seal tightly to stop leaks and guarantee that gases or liquids are flowing in the proper direction and prevents major harm to pumps and compressors by regulating the flow of liquids. It is also known as a one-way valve. Fluids enter the valve at the inlet under pressure, where they push the disc away from the valve’s seat and out the outlet. The disc automatically returns to its seat to stop the flow if there is a pressure drop. It is robust, long-lasting, and constructed of high-quality materials. To stop backflow, it is typically put in pipelines. The flow can freely move one direction through a check valve, but if the flow changes, the valve will close to safeguard the piping, other valves, pumps, etc. Water hammer may happen if the flow reverses and there is no check valve in place. A pipeline or other components can easily be damaged by water hammer, which frequently occurs with great power.
The body and bonnet of the check valve are made from forged steel. The bonnet is a removable cover that allows access to the internal components for maintenance or repair,It enhance valve’s strength and durability. The use of forged steel in the construction of these valves provides enhanced strength and durability, provides several benefits, including increased strength, durability, and resistance to corrosion. Forged steel check valves are commonly used in applications where high pressure and temperature conditions are present, such as in industrial processes, oil and gas, and chemical plants.
Product technical paramters:
| Nominal Diameter DN (mm) | 1/2"-2" | |
| Nominal Pressure PN (MPa) | 800LB - 2500LB | |
| Test Pressure (MPa) | Strength (water) | 1.5 times of pressure nominal |
| Enclose (Water) | 1.1 times of pressure nominal | |
| Main Components | Valve body | A105, LF2, F11, F22, F304, F304L, F321, F316L |
| Disc | Steel | |
| Seat | Steel | |
| Bonnet | A105, LF2, F11, F22, F304, F304L, F321, F316L | |
| Packing | Graphite | |
| Working temperature | ≤600℃ | |
| Medium suitable | Water, steam and oil etc. | |
| Connection | Screw and welded connection | |
Product in Industries:
● Oil and Gas Industry
● Power Generation
● Chemical Processing
● Mining Industry
● Paper and Pulp Industry
● Aerospace Industry
Product Applications:
• Check valves are used in gas pipelines to stop the harmful and equipment-damaging backflow of gases, such as natural gas or other gases.
• In order to prevent the backflow of polluted water into the pure water supply, check valves are utilised in water treatment facilities.
• To regulate fluid flow and stop backflow, check valves are utilised in medical equipment like infusion pumps and respirators.
• Check valves are employed in fire protection systems to stop water or other firefighting materials from flowing backwards, which can reduce the system’s efficacy.
Product advantages:
• Low maintenance
• Cost-effective
• Energy efficient
• Reduced noise
• Space-saving
• Improved system efficiency
• Prevents water hammer
• Prevents backflow
• Easy installation