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API API ASTM Combined Form Hydrometer, 39/51 Range, 0.1 Divisions - API Hydrometers
APIAPI Hydrometers

API API ASTM Combined Form Hydrometer, 39/51 Range, 0.1 Divisions

The API Hydrometer is an API ASTM Combined Form instrument with a range of 39/51 and scale divisions of 0.1. It features spirit filled mercury thermometers and has an overall height of 15 inches. This hydrometer is…

SKU 3G-OTH-368870

Brand
API
Item
API ASTM Combined Form Hydrometer, 39/51 Range, 0.1 Divisions
Part Number
GW055HLS
Category
API Hydrometers
Available to Order
Also known as:GW055HLSAPI
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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
GW055HLS
Range
39/51
Features
Spirit Filled Mercury Thermometers
Scale Type
API ASTM Combined Form
Scale Divisions
0.1

Technical Documents

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3G Electric (S) Pte. Ltd. — Singapore

Product Description

The API Hydrometer is an API ASTM Combined Form instrument with a range of 39/51 and scale divisions of 0.1. It features spirit filled mercury thermometers and has an overall height of 15 inches. This hydrometer is identified by manufacturer part number GW055HLS.

Frequently Asked Questions

What is an API hydrometer used for?

An API hydrometer measures the specific gravity of petroleum liquids, such as crude oil and refined products, according to the American Petroleum Institute (API) scale. This API ASTM Combined Form instrument with a 39/51 range is used in refineries, labs, and quality control to determine API gravity for classification and pricing.

What are the specifications of the API Hydrometer GW055HLS?

The API Hydrometer GW055HLS has a range of 39/51 API, scale divisions of 0.1, and an overall height of 15 inches. It features spirit filled mercury thermometers and is an API ASTM Combined Form scale type. This instrument is manufactured by API under part number GW055HLS.

Where to buy API hydrometers worldwide?

3G Electric supplies API hydrometers like the GW055HLS to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. As a global industrial solutions provider, we source genuine instruments and support procurement across 14 departments, including instrumentation and test & measurement.

How to select the right API hydrometer for petroleum testing?

Select an API hydrometer based on the expected API gravity range of your petroleum sample. The API ASTM Combined Form with a 39/51 range and 0.1 scale divisions suits medium to heavy crude oils. Ensure the hydrometer includes a spirit filled mercury thermometer for accurate temperature compensation during measurement.

Used in

Common applications for API
Power plants — API control rods for flanged expansion joints in steam piping systems to manage thermal expansion.
Chemical processing — API control rods for single bulb expansion joints in corrosive fluid lines to prevent over-extension.
Oil and gas refineries — API control rods for double bulb expansion joints in high-pressure piping to control axial movement.
HVAC systems — API control rods for flanged expansion joints in large ductwork to accommodate temperature changes.
Water treatment — API control rods for expansion joints in pump discharge lines to restrict motion during pressure surges.
Industrial steam distribution — API control rods for single bulb expansion joints in 12-inch headers to ensure controlled expansion.
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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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Glass hydrometer with API ASTM Combined Form scale, 29/41 range, and 0.1 scale divisions. Features a 0 to 150°F thermometer and overall height of 15 inches. Used for measuring specific gravity of petroleum products and crude oil in laboratory and refinery settings

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