ST-4125D/ST-6125D — SUBMERSIBLE PUMP COMPONENTS

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Figure 2. Submersible Pump Components

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Figure 2 shows the location of the basic components, for the ST-4125D and ST-6125D submersible pumps.Listed below is a brief explanation of each component.

1.Strainer Base – This strainer base is made of stainless steel which is resistant to hardware corrosion. For dewatering purposes, always place the strainer base on a platform.

2.Volute/Impeller – Impellers are constructed of cast ductile iron to minimize wear and prolong service life.

3.Electric Motor – The ST-4125D pump utilizes a 60 Hz, three-phase, 230/460 VAC, 10 HP electric motor and the ST-6125D pump utilizes a 60 Hz, three-phase, 230/ 460 VAC, 15 HP electric motor. Consult with a licensed electrician before connecting motor to a power source. Observe all city and local safety codes.

4.Discharge Port – Connect a 4-inch hose (ST-4125D) or 6-inch hose (ST-6125D) to this port. Remember to adequately support the discharge hose to avoid stress on the pump.

5. AC Power Cable – These pumps are supplied with a 50 ft. (15.2 meters) AC power cable. Always check the cable for signs of wear. NEVER use a defective power cable. Replace the cable immediately if the cable is worn or defective.

6.Eye Bolts – Always lift the submersible pump by the eye bolts using a chain and lifting device capable of lifting about 400 lbs. NEVER lift the pump by its power cord! Lifting the pump by the power cord will cause undue stress on the cord and ultimately the cord will become dislodged from the pump.

7.Mechanical Seal Oil – This oil-filled seal provides lubrication when running the pump dry. NEVER run the pump dry! Running the pump dry will cause severe damage to the pump.

8.Mechanical Seal Oil Plug – Remove this plug to check and add hydraulic oil (Shell 32 or equivalent) to the oil cavity. This oil protects the mechanical seal. Oil cavity should be full enough to cover seal spring.

ST-4125D/ST-6125D SUBMERSIBLE PUMPS — OPERATION AND PARTS MANUAL — REV. #1 (06/12/08) — PAGE 11

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Belkin ST6125D, ST4125D manual ST-4125D/ST-6125D Submersible Pump Components
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ST6125D, ST4125D specifications

Belkin is renowned for producing high-quality networking and connectivity solutions, and their ST4125D and ST6125D models exemplify this commitment. The ST4125D is a 4-port USB hub, while the ST6125D serves as a versatile 6-port USB hub, both designed to enhance productivity and connectivity for users, especially in environments where multiple devices are used simultaneously.

One of the main features of the Belkin ST4125D and ST6125D is their ability to expand USB connectivity effortlessly. Each hub allows users to connect multiple devices to a single USB port, which is particularly useful for laptops and desktops that have limited ports. The ST4125D features four USB 3.0 ports, while the ST6125D includes six, making them perfect for connecting printers, external hard drives, and other peripherals without having to switch devices.

Another significant technology integrated into both models is USB 3.0, which offers data transfer speeds of up to 5 Gbps. This high-speed performance not only ensures rapid file transfers but also improves efficiency when moving large volumes of data. The backward compatibility with USB 2.0 devices also ensures that users can connect older peripherals without any issues, making these hubs highly versatile.

The design of the ST4125D and ST6125D hubs promotes convenience and ease of use. Their compact and lightweight form factor makes them portable, ideal for both home and office environments. Additionally, the hubs feature individual power switches for each port, granting users control over power management and enhancing energy efficiency.

Furthermore, both models boast an LED indicator for power status, providing real-time feedback to users. They also come equipped with a sturdy build quality, ensuring longevity and durability even with regular use. With plug-and-play functionality, setting up the hubs is hassle-free, requiring no additional drivers or software installation.

In conclusion, both the Belkin ST4125D and ST6125D USB hubs present excellent solutions for anyone seeking enhanced connectivity options. With their combination of speed, functionality, and user-friendly features, they are a valuable asset in today’s increasingly device-driven world. Whether for personal use, home offices, or larger business settings, these hubs stand out as reliable tools that meet diverse connectivity needs effectively.
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