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A fast loop sampling pump is a specialized type of pump used in process industries to circulate a fluid sample from a pipeline through a sampling system, ensuring rapid and representative sampling for analysis. This system is designed to deliver a fresh sample to an analyzer quickly, minimizing lag time and maximizing data density. The SG-807 Series™ from Viking Pump provides reliable, sealless operation for demanding sampling applications across industrial and energy sectors.
What Are the Key Features of the SG-807 Series™?
The SG-807 Series™ sampling pump combines proven positive displacement technology with magnetic drive engineering to deliver superior containment and performance in fast loop sampling applications.
- Sealless mag drive eliminates the shaft seal to provide the highest level of liquid and vapor containment, protecting your facility and personnel from hazardous fluid exposure
- Hardened internal components minimize wear and extend service life, reducing maintenance frequency and operational costs
- High pressure rating both inlet and outlet allows optimal liquid sampling across a wide range of process conditions, supporting pressures up to 500 PSI (34 BAR)
- Compact footprint enables installation in space-constrained analyzer shelters and sampling systems
Technical Specifications and Performance
The SG-807 Series™ is available in two models engineered to meet varying flow requirements while maintaining consistent pressure capabilities and operational reliability.
Capacity and Operating Parameters
- Flow Rate: up to 16 GPM (61 LPM)
- Viscosity Range: 28 to 1,000,000 SSU (1 to 250,000 cSt)
- Pressure Rating: up to 500 PSI (34 BAR)
- Temperature Range: -40°F to +450°F (-40°C to +230°C)
Specifications
| Model | Standard Port Size | Nominal Pump Rating (GPM) | Nominal Pump Rating (m3/h) | Maximum RPM | Maximum Pressure PSI | Maximum Pressure BAR |
|---|---|---|---|---|---|---|
| SG-80711 | 1 inch | 11.2 GPM | 42.4 LPM | 1750 | 500 PSI | 34 BAR |
| SG-80716 | 1 inch | 16 GPM | 61 LPM | 1750 | 500 PSI | 34 BAR |
What Configuration Options Are Available?
Viking Pump offers multiple configuration options to match your specific installation requirements and process conditions. Each option is engineered to maintain the pump's performance characteristics while adapting to different mounting, drive, and connection needs.
Porting Options
- Opposite (180°) configuration
- NPT threaded connections
Drive Configurations
- D - Direct-Mounted Drive: Motor mounted directly to pump for compact installations
- B - Bracket Mounted Drive: Flexible mounting with belt or coupling drive options
- M - Motor Mounted Drive: Close-coupled motor configuration for space efficiency
Mounting Styles
- Foot Mount for traditional floor installations
- Motor Mount for direct coupling applications
Sealing Technology
- Mag Drive (Magnetic Drive) for zero-emission, sealless operation
Why Choose Magnetic Drive Technology for Sampling Applications?
Magnetic drive technology eliminates the dynamic shaft seal, which is often the primary failure point in traditional sealed pumps. In fast loop sampling systems, where containment is critical and fluids may be hazardous or volatile, this sealless design provides measurable safety and reliability advantages.
The magnetic coupling transfers torque from the motor to the pump internals through a containment shell, creating a hermetically sealed liquid end. This design prevents any fluid leakage to the atmosphere, even under full pressure conditions. For sampling applications handling flammable, toxic, or environmentally sensitive fluids, this level of containment protection is essential for regulatory compliance and workplace safety.
Additionally, the elimination of seal maintenance reduces lifecycle costs and unplanned downtime. There are no seal flush systems to maintain, no packing adjustments, and no scheduled seal replacements, resulting in lower total cost of ownership.
How Does Viking Pump Ensure Pump Reliability?
Every SG-807 Series™ pump undergoes rigorous testing before shipment to confirm it meets design specifications and operational safety requirements. Viking Pump's comprehensive testing process provides data-driven assurance that your equipment is ready for immediate service.
Hydrostatic Pressure Testing
This test confirms there are no casting defects, porosity, or leaks in pressure-containing components, ensuring the safety of your personnel and facility. We expose the pump to pressures exceeding maximum rated operating limits, up to 2,500 PSIG, to verify structural integrity under extreme conditions.
Performance Testing
Performance testing proves the pump meets its hydraulic design specifications. By measuring flow rate, head (pressure), and power consumption across a range of operating points, we generate a real-world performance curve. This ensures the pump will deliver the exact volume and pressure your process requires while operating at peak efficiency.
Run Testing
The run test is a critical validation phase where the pump operates at full speed to confirm mechanical stability and operational safety before site installation. This test identifies any assembly issues, verifies proper bearing function, and ensures smooth, vibration-free operation.
Witness Testing
Viking Pump welcomes customers to witness any testing procedures. This transparency allows you to verify pump performance firsthand and gain confidence in your equipment before it ships to your facility.
Frequently Asked Questions
What Industries Benefit from Fast Loop Sampling Pumps?
Fast loop sampling pumps are essential in industries where real-time process analysis drives operational decisions and safety. The SG-807 Series™ serves critical applications across multiple sectors.
Oil and Gas: Refineries and petrochemical plants use fast loop sampling for continuous monitoring of product quality, ensuring specifications are met and detecting process upsets before they impact production.
Chemical Processing: Chemical manufacturers rely on rapid sampling to maintain precise control over reactions, monitor catalyst performance, and ensure batch consistency in specialty chemical production.
Power Generation: Power plants use sampling pumps to monitor boiler water chemistry, cooling water quality, and fuel oil properties, protecting equipment from corrosion and deposits.
Pipeline Operations: Pipeline operators depend on fast loop sampling to verify product quality during transfers, detect contamination, and ensure custody transfer accuracy.
What makes a fast loop sampling pump different from a standard transfer pump?
A fast loop sampling pump is specifically designed to circulate a small, representative fluid sample through an analyzer system at high velocity. Unlike transfer pumps that move large volumes, sampling pumps prioritize speed and precision to minimize sample lag time. The SG-807 Series™ uses positive displacement technology to maintain consistent flow regardless of pressure fluctuations, ensuring accurate, repeatable sample delivery to your analyzer.
How often does the SG-807 Series™ require maintenance?
The magnetic drive design significantly reduces maintenance requirements compared to sealed pumps. There are no dynamic seals to replace, no packing to adjust, and no seal flush systems to maintain. Typical maintenance involves periodic inspection of the magnetic coupling and bearing system. In most applications, maintenance intervals extend well beyond one year of continuous operation, depending on fluid properties and operating conditions.
Can the SG-807 handle high-viscosity fluids in sampling applications?
Yes, the SG-807 Series™ is designed to handle fluids with viscosities ranging from 28 to 1,000,000 SSU (1 to 250,000 cSt). The internal gear design maintains consistent flow even as viscosity changes with temperature or process conditions. This viscosity tolerance makes it suitable for sampling heavy oils, polymers, and other high-viscosity process streams.
What temperature extremes can the SG-807 Series™ withstand?
The SG-807 Series™ operates reliably across a temperature range from -40°F to +450°F (-40°C to +230°C). Material selection and magnetic coupling design are engineered to maintain performance at both temperature extremes. For specific high-temperature or cryogenic applications, consult Viking Pump's technical team for material recommendations.
Is the SG-807 suitable for hazardous or flammable fluid sampling?
Absolutely. The sealless magnetic drive design eliminates the primary leak path present in traditional sealed pumps, providing the highest level of containment for hazardous, flammable, or toxic fluids. This makes the SG-807 Series™ an ideal choice for sampling applications where fluid release could create safety risks or environmental concerns. The pump's containment integrity has been proven across thousands of installations in refineries, chemical plants, and other high-risk environments.
How do I select between the SG-80711 and SG-80716 models?
Model selection depends primarily on your required sample flow rate. The SG-80711 provides up to 11.2 GPM (42.4 LPM), while the SG-80716 delivers up to 16 GPM (61 LPM). Both models offer identical pressure ratings and temperature ranges. Consider your analyzer's sample consumption rate, the length of sample return line, and desired sample velocity when selecting the appropriate model. Viking Pump's application engineers can assist with sizing to ensure optimal performance.