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API API ASTM Plain Form Hydrometer - API Hydrometers
APIAPI Hydrometers

API API ASTM Plain Form Hydrometer

The API Hydrometer is an API ASTM Plain Form instrument with a range of 29/41 and scale divisions of 0.1. It has an overall height of 13 inches and is identified by manufacturer part number GW004H.

SKU 3G-OTH-368882

Brand
API
Item
API ASTM Plain Form Hydrometer
Part Number
GW004H
Category
API Hydrometers
Available to Order
Also known as:GW004HAPI
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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
GW004H
Range
29/41
Scale Type
API ASTM Plain Form
Scale Divisions
0.1

Technical Documents

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API Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The API Hydrometer is an API ASTM Plain Form instrument with a range of 29/41 and scale divisions of 0.1. It has an overall height of 13 inches and is identified by manufacturer part number GW004H.

Frequently Asked Questions

What is an API hydrometer used for?

An API hydrometer measures the specific gravity of petroleum liquids relative to water, following the American Petroleum Institute (API) scale. It is essential in refineries, fuel testing labs, and quality control for crude oil, gasoline, and diesel to determine density and grade.

What are the specifications of the API ASTM Plain Form hydrometer?

This API hydrometer has a range of 29/41 API, scale divisions of 0.1, and an overall height of 13 inches. It is an ASTM Plain Form instrument, manufacturer part number GW004H, designed for precise density measurement of petroleum products.

Where to buy an API hydrometer worldwide?

3G Electric supplies the API ASTM Plain Form hydrometer (MPN GW004H) worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for a quote and lead time; we source genuine industrial instruments for global customers.

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. For typical crude oils, a range of 29/41 with 0.1 scale divisions provides adequate resolution. Ensure the instrument meets ASTM standards and is calibrated for the test temperature.

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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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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