Swing check valve Description
Swing check valve, also known as a one-way valve or non-return valve, is designed to prevent medium backflow in pipelines. It operates by automatically opening or closing through the flow force of the medium, ensuring unidirectional flow and mitigating potential accidents. For installation, the valve should typically be mounted horizontally in the pipeline system.
The swing check valve features an internal swing-arm design with all moving parts sealed within the valve body, eliminating external leakage risks. Additionally, the spherical connection between the swing arm and disc allows 360-degree rotational freedom, enabling minor positional compensation for smooth operation.
Swing check valves offer the following characteristics and advantages:
- Low flow resistance: The streamlined internal channel design minimizes fluid resistance during operation. 1
- Effortless opening/closing: The disc rotates to open or close, requiring less force compared to lift-type check valves. 1
- Corrosion resistance: Components (e.g., valve body, disc) can be made from corrosion-resistant materials, suitable for corrosive media. 12
- Versatile installation: Compatible with horizontal, vertical, or inclined pipelines, accommodating diverse media and installation conditions.
Swing check valve Specification
Design Specification
Design Standards: API 594, ASME B16.34, API 6D, GB/T 12236
Structure Length: ASME B16.10, GB/T 12221
Connection Standard: ASME B16.5, ASME B16.25, GB/T 9113, JB/T 79, HG/T 20592
Pressure Test: API 598, GB/T 13927, JB/T 9092
Pressure & Temperature Rating: ASME B16.34, GB/T 12224
Performance Parameters
Body Material: Carbon steel, stainless steel, alloy steel
Nominal Diameter: NPS 2″ – NPS 24″ / DN50 – DN600
Pressure Range: CL150 – CL2500 / PN10 – PN420
Operating Temperature: –46°C ~ +560°C
Scope of Application: Pipelines for water, food, pharmaceuticals, power, oil, liquefied gas, steam, and more
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