USK

SUBMERSIBLE PUMP

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The USK 4SDM313 is a 1HP submersible water pump designed for deep boreholes and wells, providing a reliable water supply for healthcare facilities, community water kiosks, and rural clinics . It is a multi-stage pump with 13 impellers, capable of lifting water from depths of up to 85-93 meters . The pump operates fully submerged, which means it is quiet, self-priming, and efficient. Constructed with a stainless steel outer casing and robust engineering plastic impellers, it is built for durability and corrosion resistance in the challenging conditions of borehole operation . It requires a minimum borehole diameter of 4 inches (100mm) and operates on a standard single-phase 220-240V AC power supply, compatible with most electrical systems in Kenya . For healthcare facilities, this pump provides the essential water supply needed for patient care, infection prevention, and hygiene, especially in off-grid or water-scarce areas .

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Description

Table of Contents

SUBMERSIBLE PUMP

PRIMARY USES

1. Reliable Water Supply for Healthcare Facilities from Boreholes and Wells
Primary Use: A submersible electric pump (1HP, 4SDM313) designed to operate fully submerged in water to pump water from boreholes, wells, and underground sources, providing a reliable water supply for healthcare facilities, particularly in areas with unreliable mains water or during dry seasons .
How it helps: For the healthcare facility manager and general practitioner, reliable access to water is fundamental for patient care, hygiene, and infection prevention. The 1HP submersible pump can lift water from significant depths, typically up to 85-93 meters, making it suitable for deep boreholes common in many parts of Kenya . The pump operates quietly and requires no manual priming, as it is always surrounded by water . By ensuring a consistent water supply, the pump supports essential clinical activities such as handwashing, instrument cleaning, sanitation, and patient hydration, which are critical for preventing healthcare-associated infections .

2. Support for Community Water Kiosks and Public Health Initiatives
Primary Use: Used in solar-powered water systems to pump water from boreholes to storage tanks and community water kiosks, providing clean, safe water to surrounding communities and reducing the burden on healthcare facility water sources .
How it helps: For the public health officer and community health worker, the submersible pump integrated into a solar-powered system ensures that clean water is accessible to the community without long wait times . This reduces the risk of waterborne diseases such as cholera, typhoid, and diarrhea, which are major public health concerns in areas with poor water access . For the community, this means improved health outcomes, reduced disease transmission, and better overall well-being .

3. Water Supply for Rural and Off-Grid Health Facilities
Primary Use: Provides a dependable water source for rural health facilities, dispensaries, and mobile clinics that are not connected to municipal water supplies, enabling them to maintain hygiene standards and provide safe patient care .
How it helps: For the rural healthcare provider, the submersible pump can be powered by solar panels or the electrical grid, making it adaptable to the available infrastructure in remote areas . The pump’s stainless steel and engineering plastic construction provides excellent corrosion resistance, which is essential for long-term use in submerged conditions . For the health facility, this means being able to offer safe deliveries, perform minor surgeries, and maintain a clean environment, which are critical for reducing maternal and neonatal mortality in underserved regions .

SECONDARY USES

1. Irrigation for Hospital Gardens and Food Security Programmes: For healthcare facilities with nutrition or food security programmes, the pump can be used to irrigate vegetable gardens, providing fresh produce for patients and staff and supporting therapeutic feeding programmes.

2. Water Supply for Emergency and Disaster Relief Operations: In emergency situations such as droughts or natural disasters, the submersible pump can be deployed to provide clean water for affected communities and healthcare facilities.

3. Support for Decontamination and Sterilisation Processes: The reliable water supply supports central sterilisation departments (CSSD), ensuring that surgical instruments and medical equipment can be properly cleaned and sterilised, reducing the risk of surgical site infections.

4. Maintaining Water Storage Tanks and Gravity-Feed Systems: The pump can be used to fill elevated water storage tanks that then supply water by gravity to the healthcare facility, ensuring consistent water pressure and availability even during power outages.

KEY PRODUCT FEATURES

1. BASIC IDENTIFICATION ATTRIBUTES

Device Type: Electric submersible borehole pump; not a medical device
Designation: USK 4SDM313
Power Output: 1 HP (0.75 kW)
Voltage: Single-phase 220-240V AC, 50Hz
Model Number: 4SDM313
Minimum Borehole Diameter: 4 inches (100mm)
Maximum Head (Vertical Lift): 85-93 meters
Rated Flow Rate: Approximately 3 m³/h (50 litres per minute)
Number of Impellers: 13
Material: Stainless steel body (AISI 304), robust plastic impellers (POM/PPO), stainless steel shaft
Country of Origin: China (typical for USK brand)
Manufacturer: USK

2. TECHNICAL & PERFORMANCE PROPERTIES

Primary Action: Pushes water from deep underground sources to the surface
Self-Priming: Yes, no manual priming required
Operation: Fully submerged in water during operation
Motor Cooling: Water-cooled, ensuring efficient operation and longevity
Protection: Hermetically sealed motor; separate control box with start capacitor and thermal overload protection
Check Valve: Integrated to prevent backflow of water in the riser pipe
Quiet Operation: Water dampens motor noise
Efficiency: Pushing water upwards is more energy-efficient than pulling water over long distances
Maximum Sand Content: Designed for clean water with very low sand content (max 0.25% by weight); higher sand content requires specialised sand-resistant pumps
Maximum Immersion Depth: Typically up to 80 meters

3. PHYSICAL & OPERATIONAL PROPERTIES

Preparation: The pump must be installed by a qualified professional. Ensure the borehole is clean and free of debris. Connect the pump to the drop pipe and electrical cable. Lower the pump into the borehole, ensuring it does not rest on the bottom (to prevent sand intake). Connect the electrical supply to the control box.
Usage Instructions: The pump starts automatically when the pressure switch or float switch is activated (depending on the system design). For manual operation, ensure the control box is switched on. Monitor the flow rate and pressure regularly.
Maintenance: Regular servicing is recommended. Check the electrical connections, control box, and pump performance periodically. Inspect the pump for wear and tear, particularly the impellers and the shaft seal. If the pump is used in water with high sand content, more frequent maintenance may be required.
Storage Conditions: Store in a cool, dry place away from direct sunlight, heat, and moisture. If storing for extended periods, drain the pump of any water and protect the electrical connections.
Installation: Requires a minimum borehole diameter of 4 inches (100mm). For deep boreholes, additional pipe and electrical cable may be required.
Ventilation: Not applicable; the pump is submerged in water.

4. SAFETY & COMPLIANCE ATTRIBUTES

Safety Classification: Electrical appliance; must be installed and maintained by a qualified electrician or technician.
Electrical Safety: Ensure the pump is properly earthed/grounded. Use a suitable circuit breaker and RCD (residual current device) for protection against electric shock.
Installation: The pump must be installed by a qualified professional to ensure it is properly connected and positioned in the borehole or well.
Regular Maintenance: Regular servicing is recommended to ensure reliable performance. Inspect the pump, motor, and control box for any signs of damage or wear.
Water Quality: The pump is designed for clean water with very low sand content (max 0.25% by weight). Higher sand content can cause premature wear and damage to the impellers and seals. Install a sand filter if necessary.
Regulatory: Complies with applicable electrical and safety standards for Kenya.
Warranty: Refer to supplier for specific warranty terms and conditions.

SAFETY HANDLING PRECAUTIONS

1. SAFETY PRECAUTIONS

Electrical safety – installation by qualified professional: The submersible pump operates on 220-240V AC and must be installed and connected by a qualified electrician to prevent electric shock or fire. Ensure the pump and control box are correctly earthed/grounded.
Borehole safety: Do not attempt to retrieve or install the pump without proper training and equipment. The borehole may be deep and contain hazardous gases or debris.
Water quality: The pump is designed for clean water with very low sand content (max 0.25% by weight). Higher sand content can cause premature wear and damage. Install a sand filter if necessary.
Regular maintenance: Inspect the pump, motor, and control box for any signs of damage or wear. Ensure the electrical connections are secure and free from corrosion.
Keep out of reach of children: The pump and its components should be stored in a location where children cannot access them.

2. FIRST AID MEASURES

Electric shock: If a person receives an electric shock, turn off the power supply immediately. If the person is not breathing, begin CPR and call emergency services. Do not touch the person until the power supply has been disconnected.
Eye contact with water (contaminated): If contaminated water enters the eyes, rinse immediately with plenty of clean, lukewarm water for at least 15 minutes. Seek medical attention if irritation persists.
Skin contact with water (contaminated): Wash skin thoroughly with soap and clean water. If irritation develops, seek medical attention.

3. FIRE FIGHTING MEASURES

Flammability: The pump and its components are not typically flammable. However, electrical faults can cause fires.
Extinguishing Media: For electrical fires, use dry chemical powder, carbon dioxide (CO₂), or a suitable fire extinguisher. Do not use water on electrical fires.
Fire Response: In the event of a fire, evacuate the area and call emergency services. Isolate the electrical supply to the pump if it is safe to do so.

SUBMERSIBLE PUMP

SUBMERSIBLE PUMP

PRIMARY USES

SECONDARY USES

1. Irrigation for Hospital Gardens and Food Security Programmes: For healthcare facilities with nutrition or food security programmes, the pump can be used to irrigate vegetable gardens, providing fresh produce for patients and staff and supporting therapeutic feeding programmes.

2. Water Supply for Emergency and Disaster Relief Operations: In emergency situations such as droughts or natural disasters, the submersible pump can be deployed to provide clean water for affected communities and healthcare facilities.

3. Support for Decontamination and Sterilisation Processes: The reliable water supply supports central sterilisation departments (CSSD), ensuring that surgical instruments and medical equipment can be properly cleaned and sterilised, reducing the risk of surgical site infections.

4. Maintaining Water Storage Tanks and Gravity-Feed Systems: The pump can be used to fill elevated water storage tanks that then supply water by gravity to the healthcare facility, ensuring consistent water pressure and availability even during power outages.

1. BASIC IDENTIFICATION ATTRIBUTES

Device Type: Electric submersible borehole pump; not a medical device

Designation: USK 4SDM313

Power Output: 1 HP (0.75 kW)

Voltage: Single-phase 220-240V AC, 50Hz

Model Number: 4SDM313

Minimum Borehole Diameter: 4 inches (100mm)

Maximum Head (Vertical Lift): 85-93 meters

Rated Flow Rate: Approximately 3 m³/h (50 litres per minute)

Number of Impellers: 13

Material: Stainless steel body (AISI 304), robust plastic impellers (POM/PPO), stainless steel shaft

Country of Origin: China (typical for USK brand)

Manufacturer: USK

2. TECHNICAL & PERFORMANCE PROPERTIES

Primary Action: Pushes water from deep underground sources to the surface

Self-Priming: Yes, no manual priming required

Operation: Fully submerged in water during operation

Motor Cooling: Water-cooled, ensuring efficient operation and longevity

Protection: Hermetically sealed motor; separate control box with start capacitor and thermal overload protection

Check Valve: Integrated to prevent backflow of water in the riser pipe

Quiet Operation: Water dampens motor noise

Efficiency: Pushing water upwards is more energy-efficient than pulling water over long distances

Maximum Sand Content: Designed for clean water with very low sand content (max 0.25% by weight); higher sand content requires specialised sand-resistant pumps

Maximum Immersion Depth: Typically up to 80 meters

3. PHYSICAL & OPERATIONAL PROPERTIES

Usage Instructions: The pump starts automatically when the pressure switch or float switch is activated (depending on the system design). For manual operation, ensure the control box is switched on. Monitor the flow rate and pressure regularly.

Storage Conditions: Store in a cool, dry place away from direct sunlight, heat, and moisture. If storing for extended periods, drain the pump of any water and protect the electrical connections.

Installation: Requires a minimum borehole diameter of 4 inches (100mm). For deep boreholes, additional pipe and electrical cable may be required.

Ventilation: Not applicable; the pump is submerged in water.

4. SAFETY & COMPLIANCE ATTRIBUTES

Safety Classification: Electrical appliance; must be installed and maintained by a qualified electrician or technician.

Electrical Safety: Ensure the pump is properly earthed/grounded. Use a suitable circuit breaker and RCD (residual current device) for protection against electric shock.

Installation: The pump must be installed by a qualified professional to ensure it is properly connected and positioned in the borehole or well.

Regular Maintenance: Regular servicing is recommended to ensure reliable performance. Inspect the pump, motor, and control box for any signs of damage or wear.

Water Quality: The pump is designed for clean water with very low sand content (max 0.25% by weight). Higher sand content can cause premature wear and damage to the impellers and seals. Install a sand filter if necessary.

Regulatory: Complies with applicable electrical and safety standards for Kenya.

Warranty: Refer to supplier for specific warranty terms and conditions.

1. SAFETY PRECAUTIONS

Electrical safety – installation by qualified professional: The submersible pump operates on 220-240V AC and must be installed and connected by a qualified electrician to prevent electric shock or fire. Ensure the pump and control box are correctly earthed/grounded.

Borehole safety: Do not attempt to retrieve or install the pump without proper training and equipment. The borehole may be deep and contain hazardous gases or debris.

Water quality: The pump is designed for clean water with very low sand content (max 0.25% by weight). Higher sand content can cause premature wear and damage. Install a sand filter if necessary.

Regular maintenance: Inspect the pump, motor, and control box for any signs of damage or wear. Ensure the electrical connections are secure and free from corrosion.

Keep out of reach of children: The pump and its components should be stored in a location where children cannot access them.

2. FIRST AID MEASURES

Electric shock: If a person receives an electric shock, turn off the power supply immediately. If the person is not breathing, begin CPR and call emergency services. Do not touch the person until the power supply has been disconnected.

Eye contact with water (contaminated): If contaminated water enters the eyes, rinse immediately with plenty of clean, lukewarm water for at least 15 minutes. Seek medical attention if irritation persists.

Skin contact with water (contaminated): Wash skin thoroughly with soap and clean water. If irritation develops, seek medical attention.

3. FIRE FIGHTING MEASURES

Flammability: The pump and its components are not typically flammable. However, electrical faults can cause fires.

Extinguishing Media: For electrical fires, use dry chemical powder, carbon dioxide (CO₂), or a suitable fire extinguisher. Do not use water on electrical fires.

Fire Response: In the event of a fire, evacuate the area and call emergency services. Isolate the electrical supply to the pump if it is safe to do so.

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