Description of SGP Series Gear Pump

Lightweight and Compact Design
Capable of withstanding pressures of up to 245 bar
Flexible application through modular combinations with other pump types.
Features low pulsation, a wide operating range suitable for various fluid viscosities

SGP Series Gear Pump Parameter Table:

The detailed precautions for use of the SGP Series Pump ：

The SGP series pumps (typically referring to the high-performance liquid chromatography (HPLC) solvent delivery pumps) require careful attention during use, mainly focusing on precision, durability, and chemical compatibility. The key points include maintaining a clean flow path, preventing cavitation, performing regular maintenance (such as replacement of pistons and seals), using high-purity solvents, and ensuring compatibility of sealing components (such as O-rings), in order to guarantee long-term stable operation and accurate analytical results.

Below are the detailed precautions for use:

1. Flow Path Management and Cleaning

Use high-purity solvents/reagents:
Ensure that the mobile phase and samples are clean to prevent impurities from clogging tubing and pump components.

Regular flushing:
After each use, flush the pump and tubing with appropriate solvents (such as methanol or acetonitrile) to prevent solvent evaporation and crystallization.

Avoid particulate-containing samples:
Samples must be filtered to prevent particles from entering the pump and causing wear.

2. Prevention of Cavitation

Thorough degassing:
Before startup and when changing solvents, always perform degassing to completely remove air from the pump and tubing.

Stable pressure:
Keep system pressure as stable as possible and avoid sudden pressure fluctuations.

Check sealing integrity:
Ensure that all fittings and seals are properly tightened and well sealed to prevent air from being drawn into the system.

3. Mechanical Component Maintenance

Pistons and seals:
Regularly inspect pistons and sealing rings for wear and replace them in a timely manner, as they are critical to flow accuracy and pump lifespan.

Check valves:
The responsiveness of check valves is crucial to pump performance; clean or replace them periodically to ensure smooth opening and closing.

Cleanliness:
All liquid-contacting components (pistons, seals, check valves) must be kept clean.

4. Chemical Compatibility (Sealing Materials)

Select appropriate sealing materials:
Shimadzu SGP pumps may use seals made of materials such as Viton or PTFE. These should be selected based on the polarity, acidity, or alkalinity of the mobile phase. Special attention is required when using highly corrosive solvents (e.g., mixtures containing organic acids or strong bases), as they can severely damage sealing rings.

5. Operating Environment

Temperature and humidity:
Maintain a stable laboratory environment and avoid extreme temperatures or high humidity, which may affect instrument performance and electronic components.

6. Operating Procedures

Follow the user manual:
Operate the pump strictly according to the official Shimadzu SGP series pump manual, which provides detailed instructions for installation, operation, and maintenance.

Monitor alarm messages:
The instrument will indicate abnormal conditions (such as excessively high/low pressure or abnormal flow rates); address these issues promptly.

SGP Series Vane Pump Product series model：

SGP1A16

SGP1A18

SGP1A20

SGP1A23

SGP1A25

SGP1A27

SGP1A30

SGP1A32

SGP1A34

SGP1A36

SGP1-16F1H1-L