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API hydrometers are precision instruments designed for measuring the specific gravity of petroleum products and related liquids according to the American Petroleum Institute (API) scale. These hydrometers are manufactured to meet ASTM (American Society for Testing and Materials) standards, ensuring consistent and reliable readings in laboratory and field applications. The product line includes both plain form and combined form hydrometers, with the latter integrating a thermometer for simultaneous temperature measurement. Available ranges cover API gravity values from 15 to 80 degrees, with scale divisions as fine as 0.1 degrees, allowing for accurate determination of liquid density. Construction materials are primarily glass, with ballast options for stability, and overall lengths vary from approximately 6 3/8 inches to 15 inches to suit different testing vessels. Many models feature built-in thermometers (e.g., 0 to 150°F) or spirit-filled mercury thermometers for temperature compensation. 3G Electric stocks over 50 SKUs of API hydrometers, providing a comprehensive selection of ranges and configurations to support quality control in petroleum refining, fuel blending, and storage operations. Each hydrometer is supplied with a manufacturer part number for traceability, and datasheets are available to verify specifications such as scale type, division increments, and temperature range. As a global distributor, 3G Electric offers logistics support to ensure timely delivery to industrial facilities worldwide, with no geographic restrictions on shipping. The inventory includes both plain form hydrometers (e.g., ASTM Plain Form) for basic density measurement and combined form hydrometers (e.g., ASTM Combined Form) for integrated temperature reading, catering to diverse testing protocols. These instruments are essential for compliance with industry standards in sectors such as oil and gas, petrochemicals, and marine fuel handling, where precise API gravity measurement is critical for product quality and process control.

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Tentang API

API hydrometers are precision instruments designed for measuring the specific gravity of petroleum products and related liquids according to the American Petroleum Institute (API) scale. These hydrometers are manufactured to meet ASTM (American Society for Testing and Materials) standards, ensuring consistent and reliable readings in laboratory and field applications. The product line includes both plain form and combined form hydrometers, with the latter integrating a thermometer for simultaneous temperature measurement. Available ranges cover API gravity values from 15 to 80 degrees, with scale divisions as fine as 0.1 degrees, allowing for accurate determination of liquid density. Construction materials are primarily glass, with ballast options for stability, and overall lengths vary from approximately 6 3/8 inches to 15 inches to suit different testing vessels. Many models feature built-in thermometers (e.g., 0 to 150°F) or spirit-filled mercury thermometers for temperature compensation. 3G Electric stocks over 50 SKUs of API hydrometers, providing a comprehensive selection of ranges and configurations to support quality control in petroleum refining, fuel blending, and storage operations. Each hydrometer is supplied with a manufacturer part number for traceability, and datasheets are available to verify specifications such as scale type, division increments, and temperature range. As a global distributor, 3G Electric offers logistics support to ensure timely delivery to industrial facilities worldwide, with no geographic restrictions on shipping. The inventory includes both plain form hydrometers (e.g., ASTM Plain Form) for basic density measurement and combined form hydrometers (e.g., ASTM Combined Form) for integrated temperature reading, catering to diverse testing protocols. These instruments are essential for compliance with industry standards in sectors such as oil and gas, petrochemicals, and marine fuel handling, where precise API gravity measurement is critical for product quality and process control.

Aplikasi Umum

  • Petroleum refining — API ASTM Plain Form hydrometers (e.g., range 19/31) for measuring crude oil gravity during distillation
  • Fuel blending — API Combined Form hydrometers (e.g., range 39/51) with thermometer for real-time density checks in gasoline blending
  • Marine fuel handling — API hydrometers (e.g., range 40/80) for verifying bunker fuel API gravity at storage terminals
  • Quality control labs — API ASTM Plain Form hydrometers (e.g., range 49/61) for routine testing of light distillates
  • Field testing — API Combined Form hydrometers (e.g., range 29/41) for portable density measurement in pipeline sampling
  • Petrochemical production — API hydrometers (e.g., range 15/21) for monitoring solvent density in chemical processing

Pertanyaan yang Sering Diajukan

Pertanyaan umum tentang API dari 3G Electric.

What is the difference between API ASTM Plain Form and Combined Form hydrometers?

API ASTM Plain Form hydrometers measure only the API gravity of a liquid, with no integrated thermometer. They are typically used when temperature is measured separately or when the liquid temperature is known and stable. Combined Form hydrometers incorporate a thermometer (e.g., 0 to 150°F) within the stem, allowing simultaneous reading of temperature and API gravity. This design simplifies testing by reducing the number of instruments needed and is preferred for field use where quick, single-instrument readings are required.

What API gravity ranges are available for API hydrometers from 3G Electric?

3G Electric stocks API hydrometers covering a wide range of API gravity values, including 15/21, 19/31, 29/41, 39/51, 40/80, and 49/61. These ranges accommodate light to heavy petroleum products, from gasoline and naphtha to crude oil and fuel oils. Each hydrometer is calibrated to a specific range with scale divisions of 0.1 or 0.2 degrees, ensuring precise measurement within the intended application.

Are API hydrometers supplied with calibration certificates or traceability documentation?

API hydrometers from 3G Electric are manufactured to ASTM standards and include manufacturer part numbers for traceability. While specific calibration certificates may vary by product, datasheets are available upon request to verify specifications such as scale type, range, and division increments. For applications requiring certified calibration, please contact 3G Electric to confirm availability for the specific SKU.

What is the typical overall length of API hydrometers stocked by 3G Electric?

API hydrometers in the 3G Electric inventory come in overall lengths of approximately 6 3/8 inches, 13 inches, and 15 inches. The shorter length (6 3/8 inches) is suitable for smaller test cylinders or portable kits, while the 13-inch and 15-inch models are standard for laboratory use and comply with ASTM requirements for immersion depth and readability.

Can API hydrometers be used for liquids other than petroleum products?

API hydrometers are calibrated specifically for the API gravity scale, which is derived from the specific gravity of petroleum liquids at 60°F. While they can technically measure the density of other liquids, the scale may not provide accurate results for non-petroleum fluids due to differences in surface tension and temperature correction factors. For non-petroleum applications, hydrometers calibrated to specific gravity or Baumé scales are recommended.

Does 3G Electric supply API products?

Yes — 3G Electric (S) Pte. Ltd. supplies API products. We stock the API catalog and supply genuine factory-original products with full manufacturer warranty and technical support.