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Product Description
The Multi-Function Vortex-Free Pump Control Valve (SK/QK/YK Series) is a highly efficient Hydraulic Anti-Water-Hammer Check Valve specifically engineered for pump outlet pipelines. By integrating the functions of a slow-opening valve, a slow-closing check valve, and a water-hammer eliminator into a single unit, this product significantly reduces project costs while ensuring the ultimate safety of your pipeline network. Designed to prevent reverse flow and eliminate destructive water hammer, it is an essential component for modern water supply and industrial fluid management systems.
1. Flanged connection shall comply with the standards GB/T 17241.1-2024.
2. Strength and sealing tests shall comply with the standard GB/T 13927-2022.
3. Relevant technical parameters are listed in Table 1, materials of main components in Table 2, overall dimensions in Table 3.
Table 1: Technical Parameters Table | ||||||
PN | 1.0MPa | 1.6MPa | 2.5MPa | |||
Body Test | 1.5MPa | 2.4MPa | 3.75MPa | |||
Seal Test | 1.1MPa | 1.76MPa | 2.75MPa | |||
Temperature | 0℃~80℃ | |||||
Multiple Models Available | Self-actuated | Pneumatic、Hydraulic | ||||
Models Optional | SK745X | YK645X、QK745X | ||||
Table 2: Main Component Materials | |||||
Part Name | Materials | ||||
Body、Cylinder Block.Cylinder Cover | Ductile Iron | ||||
Bearings.Cylinder Liners | Copper Alloy | ||||
Diaphragm、Sealing Ring | NBR/EPDM | ||||
Stem | Stainless Steel | ||||
Fasteners | Carbon Steel/Stainless Steel | ||||
1. Start pump with valve closed: When initiating the system, the pump starts at zero flow first, and then the hydraulic control valve opens slowly. This mechanism effectively reduces the starting shaft power by an average of 50%, minimizing electrical load and ensuring the safety of the motor and pumping equipment.
2. Stop pump with valve closed: During a planned shutdown, the valve closes slowly first. The pump is only stopped when the pipeline flow velocity reaches zero. This controlled sequence completely eliminates water hammer during the shutdown process and reliably prevents pump reverse rotation, protecting the entire pipeline infrastructure.
3. In case of unplanned power failure: In the critical event of an unexpected power failure and subsequent pump shutdown—often caused by lightning induction or circuit faults—the control valve automatically and slowly closes to stop the flow. This intelligent hydraulic response ensures that the resulting water hammer pressure does not exceed 0.3 times the standard working pressure, rigorously safeguarding the pipe network from rupture or severe damage.
4. Energy saving: The innovative internal structure ensures no vortex is generated inside the valve body. This streamlined flow dynamic achieves an impressive energy saving of approximately 25% when compared with traditional similar products, significantly lowering long-term operational costs.
5. Full-bore flow channel design: The advanced full-bore design guarantees that the designed flow rate is consistently met under various working conditions. By minimizing flow resistance and pressure drop, it further realizes substantial energy-saving benefits for large-scale fluid transport projects.
Vortex-free streamlined full-bore flow channel: Delivers exceptionally low pressure loss and outstanding energy-saving performance for continuous operation.
Integrated multi-function design: Seamlessly combines slow-open functionality on pump start and slow-close check functionality on pump stop.
Advanced protection: Effectively eliminates both opening-pump and stop-pump water-hammer phenomena, reliably preventing pump reverse rotation.
Hydraulic pilot-driven operation: Requires no external power supply or electrical actuators, ensuring fully automatic, fail-safe operation based on pipeline pressure.
Durable construction: Features a high-strength ductile iron body coated with epoxy resin, providing excellent anti-corrosion properties suitable for various water mediums.
User-friendly installation: Utilizes a standard flange connection with a compact overall structure, facilitating easy installation, maintenance, and field adjustment.
Cost-effective solution: Replaces the traditional combination of a separate check valve, butterfly valve, and water-hammer eliminator, saving substantial project costs and installation space.
The SK/QK/YK Series Hydraulic Anti-Water-Hammer Check Valve is highly adaptable and provides reliable fluid control for diverse demanding environments:
Water pump outlet of water supply pumping stations: Ensuring stable pressure and preventing backflow to protect valuable pumping equipment.
Municipal water supply pipeline projects: Safeguarding extensive public underground networks from destructive pressure surges.
High-rise building water-supply systems: Managing high-pressure fluid delivery safely and efficiently without noise or vibration.
Industrial circulating water pipelines: Maintaining continuous flow and protecting heavy-duty industrial pumps in factories.
Water plant and sewage treatment stations: Handling large volumes of treated water with corrosion-resistant reliability.
Fire-fighting water supply pump outlets: Guaranteeing immediate, safe, and surge-free water delivery during critical fire emergencies.
As a dedicated manufacturer of industrial fluid control solutions, we pride ourselves on advanced production capabilities and stringent quality management. From precision forging processes to final assembly, every stage of our manufacturing is optimized to ensure the reliability and durability of our valves in demanding environments. Our factory facilities are fully equipped to handle large-scale procurement needs while maintaining consistent performance standards across all production batches, ensuring your projects run smoothly.
Beyond our specialized pump control valves, we offer a comprehensive portfolio of industrial valves designed to meet diverse project requirements. Our extended product lines include high-performance butterfly valves, gate valves, and other pipeline equipment engineered for critical applications in water treatment, HVAC systems, and municipal infrastructure. By providing a wide range of reliable fluid control equipment, we help procurement teams streamline their sourcing process, ensure system compatibility, and reduce overall project risks.
Ready to optimize your pipeline systems? We invite engineers, contractors, and procurement managers to connect with our technical sales team. Whether you need detailed product catalogs, custom manufacturing solutions, or competitive pricing for bulk orders, we are fully prepared to support your project success. Reach out to us through the contact channel below for fast responses, professional technical support, and comprehensive sourcing assistance.
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