APIAPI Hydrometers

API Hydrometer: API Plain Form, 39/51, 0.2

The API Hydrometer is an API Plain Form hydrometer with a range of 39/51 and scale divisions of 0.2. This instrument, manufactured by API under part number GW2505, features a 6-inch overall height and is designed for…

SKU 3G-OTH-368900

Also listed as: GW 2505 · GW-2505

Brand

API

Item

Hydrometer: API Plain Form, 39/51, 0.2

Local availability & support — Singapore

Local office: 20 Woodlands Link #09-05, Singapore 738733
Phone: +65 8878 8355
Delivery: Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment: Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to: Singapore

Technical Specifications

API

Manufacturer Part Number

GW2505 

Range

39/51 

Scale Type

API Plain Form 

Scale Divisions

0.2

Technical Documents

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API Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

Frequently Asked Questions

What is an API hydrometer used for?

An API hydrometer measures the specific gravity of petroleum products according to the American Petroleum Institute scale. It is used in refineries, laboratories, and fuel handling to determine the density of crude oil, gasoline, diesel, and lubricants relative to water.

What are the specifications of the API Hydrometer GW2505?

The API Hydrometer GW2505 has an API Plain Form scale with a range of 39/51 and scale divisions of 0.2. It has a 6-inch overall height and is manufactured by API. This instrument is designed for measuring the specific gravity of petroleum products in laboratory and industrial settings.

Where to buy API hydrometers worldwide?

3G Electric supplies API hydrometers worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the API Plain Form hydrometer model GW2505.

How to select the right API hydrometer for petroleum testing?

Select an API hydrometer based on the expected specific gravity range of your petroleum product. For lighter fuels like gasoline, choose a lower range; for heavier crude oils, a higher range. The API Plain Form hydrometer with range 39/51 and 0.2 divisions is suitable for general petroleum density measurement.

Used in

Common applications for API

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

API Products

3G Electric supplies API api hydrometers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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