Product Description

Vortex-Free Multi-Function Pump Control Valve Overview

The SK/QK/YK Series Vortex-Free Multi-Function Pump Control Valve is engineered specifically for water supply pump stations, municipal networks, and industrial fluid control systems. Designed as a highly efficient flange hydraulic check valve, it integrates the functions of a motorized gate valve, a non-return check valve, and a water hammer eliminator into one compact unit. By effectively preventing reverse flow and eliminating destructive water hammer surges, this valve significantly reduces operational risks, protects pipeline infrastructure, and lowers long-term maintenance costs for procurement and engineering projects.

Technical Parameters & Standards

1. Flanged Connection Standard: Complies strictly with GB/T 17241.1-2024, ensuring seamless integration into standard piping systems. 

2. Strength and Sealing Tests: Executed in accordance with GB/T 13927-2022 to guarantee leak-free performance and structural integrity under high pressure.

3. Specifications Overview: Relevant technical parameters are detailed in Table 1, main component materials in Table 2, providing precise data for engineering selection.

Working Principle & Core Advantages

1. Start Pump with Valve Closed (Zero-Flow Startup): The operational sequence starts the pump at zero flow before gradually opening the valve. This intelligent mechanism reduces the starting shaft power by an average of 50%, significantly lowering electrical load and ensuring overall equipment safety during system initiation.

2. Stop Pump with Valve Closed (Water Hammer Prevention): During a planned shutdown, the valve closes first. The pump only stops when the pipeline flow velocity reaches zero. This completely eliminates water hammer impacts during shutdown phases and effectively prevents pump reverse rotation, extending the lifespan of your pumping equipment.

3. Unplanned Power Failure Protection: In the critical event of an unexpected power failure, lightning induction, or circuit fault causing an abrupt pump shutdown, the control valve automatically and slowly closes. This crucial safety feature ensures the resulting water hammer pressure does not exceed 0.3 times the standard working pressure, comprehensively safeguarding the pipe network from catastrophic rupture.

4. Exceptional Energy Saving (Vortex-Free): The internal cavity is aerodynamically designed so that no vortex is generated inside the valve body. This smooth flow transition achieves remarkable energy savings of approximately 25% compared to conventional multi-function control valves, directly lowering operational costs for large-scale water stations.

5. Full-Bore Flow Channel Design: The full-bore structure ensures the valve meets the designed flow rate under all working conditions without bottlenecking. This minimizes pressure loss across the valve, further realizing system-wide energy efficiency and optimal fluid delivery.

Main Features

• Vortex-Free Streamlined Full-Bore Flow Channel: Delivers exceptionally low pressure loss and superior energy-saving performance for high-volume water transmission.

• Integrated Multi-Function Design: Automatically executes slow-open upon pump start and slow-close check functions upon pump stop, simplifying control systems.

• Comprehensive System Protection: Effectively eliminates opening-pump and stop-pump water-hammer surges, strictly preventing pump reverse rotation and mechanical damage.

• Hydraulic Pilot-Driven Mechanism: Requires no external power supply or complex electrical wiring, ensuring fully automatic, reliable, and maintenance-friendly operation.

• Durable Anti-Corrosion Construction: Constructed with a robust ductile iron body and coated with premium epoxy, providing excellent anti-corrosion properties ideal for long-term water medium exposure.

• Compact & Convenient Installation: Features a standard flange connection and a compact overall structure, facilitating easy installation, space-saving in pump rooms, and straightforward field adjustments.

• Cost-Effective Engineering Solution: Replaces the traditional, bulky combination of separate check valves, motorized butterfly valves, and independent water-hammer eliminators, substantially saving project procurement and installation costs.

Typical Applications

This SK/QK/YK Series Flange Hydraulic Check Valve is highly adaptable and serves as a critical safety and control component across various demanding fluid handling environments:

• Water pump outlet of water supply pumping stations (Ensuring stable municipal water distribution)

• Municipal water supply pipeline projects (Protecting extensive underground networks from pressure surges)

• High-rise building water-supply systems (Managing high head pressure and preventing backflow)

• Industrial circulating water pipelines (Maintaining continuous and efficient cooling or process water flow)

• Water plant and sewage treatment stations (Handling treated water with reliable automated control)

• Fire-fighting water supply pump outlets (Guaranteeing immediate, fail-safe operation during emergency fire suppression)

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Explore Our Comprehensive Manufacturing Capabilities

As a dedicated manufacturer of industrial fluid control solutions, we pride ourselves on robust production capabilities and stringent quality management. Our extensive manufacturing facilities and advanced forging processes are fully equipped to support diverse procurement requirements, delivering reliable and durable valves for large-scale engineering projects.

Discover Our Full Range of Industrial Valves

Beyond our specialized pump control valves, our extensive product line includes high-performance butterfly valves and other essential pipeline components. Designed for demanding industrial environments, our broad selection ensures you can easily source the exact fluid control equipment needed to maintain stable and efficient pipeline systems.

Contact Us for Customized Solutions

We are committed to providing professional technical support and tailored manufacturing services. Whether you require standard industrial valves or customized solutions for specific water supply pump stations, our dedicated team is ready to assist. Reach out to us today to discuss your project needs, request detailed catalogs, and secure a reliable supply partnership.