Manual Drainage Valve ( SD44X )

The SD44X manual drainage valve is a high-reliability fluid control component mainly used for drainage and sludge discharge in water supply and drainage systems. It is designed with a gear-rack drive structure, which inherits the excellent performance of the J744X type sludge discharge valve while optimizing the overall structure for better adaptability to normal atmospheric temperature water medium working conditions. This valve is widely applicable to various water system scenarios such as industrial circulating water systems, municipal water supply and drainage projects, and water treatment equipment, playing a key role in ensuring the smooth operation of the system by timely discharging sediment, sludge and excess water.

â… . Product Introduction

The SD44X manual drainage valve is a high-reliability fluid control component mainly used for drainage and sludge discharge in water supply and drainage systems. It is designed with a gear-rack drive structure, which inherits the excellent performance of the J744X type sludge discharge valve while optimizing the overall structure for better adaptability to normal atmospheric temperature water medium working conditions. This valve is widely applicable to various water system scenarios such as industrial circulating water systems, municipal water supply and drainage projects, and water treatment equipment, playing a key role in ensuring the smooth operation of the system by timely discharging sediment, sludge and excess water.

â…¡. Product Features

  • Efficient Gear-Rack Drive: Adopting a precision gear-rack transmission mechanism, the valve realizes lifting and lowering operations through gear rotation driving the rack movement. This structure ensures smooth, easy and fast opening and closing actions, effectively improving operation efficiency and reducing labor intensity for users.
  • Simple Maintenance & Long Service Life: The overall structure of the valve is concise and reasonable, with fewer wearing parts and easy disassembly and maintenance. The selected high-quality materials and optimized structural design ensure a service life of up to 5 years or more, greatly reducing the frequency of replacement and maintenance costs.
  • Reliable Quality & Guaranteed After-Sales: The valve undergoes strict quality inspection before leaving the factory, with stable and reliable performance. It provides an 18-month warranty period, ensuring that users can get timely after-sales support in case of quality problems during the warranty period.
  • Strong Adaptability: It is suitable for water medium under normal atmospheric temperature and 1.0MPa working pressure, with good compatibility and can stably operate in various conventional water system environments.

â…¢. Technical Data, Working Principle and Performance

1. Working Principle

The SD44X manual drainage valve adopts a gear-rack transmission principle, which is basically the same as that of the J744X type sludge discharge valve. When the user manually operates the valve, the rotational force is transmitted to the pinion (gear wheel), which drives the rack to move linearly. The linear movement of the rack further drives the tappet to lift or lower, thereby realizing the opening and closing of the valve. The gear-rack cooperation ensures accurate transmission ratio, making the valve opening and closing position controllable, and the operation process is stable without jamming.

2. Performance

The valve has excellent sealing performance under the rated working pressure of 1.0MPa, effectively preventing medium leakage. The gear-rack transmission structure has high mechanical efficiency, ensuring flexible and labor-saving operation. With reasonable material selection and structural design, it can maintain stable performance under normal atmospheric temperature water medium conditions for a long time, and the service life can reach more than 5 years. The product provides an 18-month warranty, covering quality problems caused by non-human factors.

3. Technical Parameters

Item
Specification
Working Pressure
1.0MPa
Medium
Water
Service Temperature
Normal atmospheric temperature

4. Parts Material

Part Name
Material
Valve Body
HT200
Valve Frame
HT200
Gear Rack
HT200
Tappet
No pound steel
Pinion (Gear Wheel)
Carbon steel

Ⅳ.The main shape and connection size

sizes

mm

norm DN

D D1 Φ L H1 H ZΦd Water inlet pipe C
80 195 160 210 135 115 330 4X18 1/2
100 215 180 240 145 125 360 8X18 1/2
150 280 240 315 185 155 450 8X23 1/2
200 335 295 400 220 185 545 8X23 1/2
250 390 350 460 250 215 610 12X23 1/2
300 440 400 555 280 240 680 12X23 1/2
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About Us

Founded in 2016, Shanghai Wangye Valve Manufacturing Co., Ltd. is a professional industrial fluid control manufacturer with nearly a decade of experience, integrating R&D, intelligent production, sales, and customized solutions. Leveraging Shanghai’s advanced manufacturing advantages, we’ve built a reliable brand across petrochemicals, power, metallurgy, water treatment, and new energy industries, offering gate/ball/butterfly valves and tailored solutions for harsh conditions. Backed by advanced equipment, full-process quality control, and ISO certifications, we adhere to “Integrity, Quality, Customer Focus, Innovation” and provide comprehensive services, striving for long-term cooperation and continuous technological upgrading.

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Why Choose Us

Talent and Efficient Team

WYE always insists that employees are the most valuable asset of the enterprise and the future of WYE; Adhere to prioritizing talent selection, education, and utilization in the development of enterprises; introducing talent as the highest return investment behavior. We regard talent as the primary resource for effective management, and pursue a high degree of harmony and unity between employee personal development and enterprise development.We encourage you to have a special perspective, think independently, and be good at organizing resources from all parties. Always maintain a responsible attitude towards results and a positive team spirit that is willing to share in every task..

High End Processing Equipment Creating Excellent Product Quality

Advanced automated production equipment and sophisticated assembly line production demonstrate first-class quality.Technical experts directly participate in production to ensure the concealment and reliability of the product.The increasing awareness of high-quality products and the continuous supply of industrial products have made WYE constantly changing.No matter how the world changes, the persistent spirit of excellence among WTE people remains unchanged.

Warehouse Strength

In our facility, raw materials (including core components and packaging supplies) are strictly controlled via a real-time digital inventory system—tracking batches, shelf life, and storage conditions to boost traceability and cut waste. Semi-finished products, post-preliminary quality checks, are stored per strict industry standards: labeled with progress/inspection records to avoid cross-contamination and damage. Finished products are sorted into specialized warehouses by type, market, and delivery schedule, streamlining picking and reducing dispatch delays. This standardized process effectively boosts efficiency: cutting redundant steps by 30%, shortening fulfillment cycles by 20%, and minimizing inventory/shipment errors.

Customized Solutions & After-Sales Support

Tailored to the distinct demands of industries like petrochemicals, new energy, and metallurgy, WYE provides personalized industrial fluid control solutions—covering pre-project demand assessment, customized valve design (matching specific working conditions like pressure or medium type), and on-site technical consultation to align with clients’ operational scenarios. Additionally, we offer comprehensive after-sales support: including on-site installation guidance, regular equipment maintenance inspections, and 24/7 responsive fault troubleshooting, which ensures the stable operation of clients’ systems and strengthens long-term cooperative partnerships.

Our Services

Our company is a one-stop solution for all valve-related needs, offering customization to tailor valves to unique specifications, professional installation & commissioning for seamless integration and optimal performance, maintenance & repair to keep valves in top condition and extend their lifespan, and technical support & consultation for expert advice on selection, optimization, and troubleshooting throughout every project stage.

Valve Customization Service

We design and manufacture valves tailored to your unique specifications, ensuring perfect compatibility with your systems and enhanced operational efficiency.

Valve Installation & Commissioning

Our expert team provides professional installation and commissioning services, guaranteeing seamless integration and optimal performance of your valves from day one.

Valve Maintenance & Repair

We offer regular maintenance, prompt repair, and parts replacement services to keep your valves in top condition, minimizing downtime and extending their lifespan.

Technical Support & Consultation

Get expert advice on valve selection, system optimization, and troubleshooting. Our technical team is available to guide you through every stage of your valve-related projects.

PRODUCT PICTURE

EXHIBITION

PRODUCTION WORKSHOP

CERTIFICATIONS

CE-ROHS

ISO9001

ISO 15484

ISO 45001

API 607

COOPERATIVE PARTNER

Valve Solutions That Transform Your Operations

Our valves offer superior durability, precise control, and tailored solutions for your industrial, commercial, or residential needs. Don’t miss the opportunity to get reliable valve products and expert support.

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