Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

API Hydrometer: API Plain Form, 29/41, 0.2 - API Hydrometers
APIAPI Hydrometers

API Hydrometer: API Plain Form, 29/41, 0.2

The API Hydrometer is an API Plain Form hydrometer with a range of 29/41 and scale divisions of 0.2. It has an overall height of 6 inches and is identified by manufacturer part number GW2504.

SKU 3G-OTH-368891

Also listed as: GW 2504 · GW-2504

Brand
API
Item
Hydrometer: API Plain Form, 29/41, 0.2
Category
API Hydrometers
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

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
GW2504
Range
29/41
Scale Type
API Plain Form
Scale Divisions
0.2

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The API Hydrometer is an API Plain Form hydrometer with a range of 29/41 and scale divisions of 0.2. It has an overall height of 6 inches and is identified by manufacturer part number GW2504.

Frequently Asked Questions

What is an API hydrometer used for?

An API hydrometer measures the specific gravity of petroleum liquids according to the American Petroleum Institute (API) scale. It is used in refineries, fuel testing labs, and storage terminals to determine fuel density and quality for compliance with industry standards.

What are the specifications of the API Hydrometer GW2504?

The API Hydrometer GW2504 has an API Plain Form scale type, a range of 29/41, and scale divisions of 0.2. Its overall height is 6 inches. This instrument is designed for precise density measurement of petroleum products in laboratory and field applications.

Where to buy API hydrometers in worldwide?

3G Electric supplies API hydrometers worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on the GW2504 or other API hydrometer models.

How to select the right API hydrometer for fuel testing?

Select an API hydrometer based on the expected specific gravity range of your fuel. The GW2504 covers 29/41 API, suitable for light to medium petroleum products. Ensure the scale divisions (0.2) meet your required precision. Always verify the hydrometer is calibrated to ASTM standards.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
API Hydrometer: API Plain Form, 39/51, 0.2, 6 in Overall Ht (MPN GW2505)
API
API Hydrometer: API Plain Form, 39/51, 0.2, 6 in Overall Ht (MPN GW2505)
API Hydrometer: API Plain Form, 9/21, 0.2, 6 in Overall Ht (MPN GW2502)
API
API Hydrometer: API Plain Form, 9/21, 0.2, 6 in Overall Ht (MPN GW2502)
API Hydrometer: API Plain Form, 69/81, 0.2, 6 in Overall Ht (MPN GW2508)
API
API Hydrometer: API Plain Form, 69/81, 0.2, 6 in Overall Ht (MPN GW2508)

More from API

View all API parts
API Hydrometer: API ASTM Combined Form, 39/51, 0.1, 15 in Overall Ht (MPN GW055HLS)
API
API Hydrometer: API ASTM Combined Form, 39/51, 0.1, 15 in Overall Ht (MPN GW055HLS)
API Hydrometer: API Combined Form, 40/80, 0.2, Glass, 15 in Overall Ht (MPN GW6007X)
API
API Hydrometer: API Combined Form, 40/80, 0.2, Glass, 15 in Overall Ht (MPN GW6007X)
API Hydrometer: API ASTM Plain Form, 49/61, 0.1, Glass, 13 in Overall Ht (MPN GW006H)
API
API Hydrometer: API ASTM Plain Form, 49/61, 0.1, Glass, 13 in Overall Ht (MPN GW006H)
API Hydrometer: API ASTM Plain Form, 19/31, 0.1, 13 in Overall Ht (MPN GW003H)
API
API Hydrometer: API ASTM Plain Form, 19/31, 0.1, 13 in Overall Ht (MPN GW003H)
API Hydrometer: API ASTM Plain Form, 19/31°, 0.1°, Ballast/Glass, +/-0.1°, 13 in Overall Ht (MPN B61898-0000)
API
API Hydrometer: API ASTM Plain Form, 19/31°, 0.1°, Ballast/Glass, +/-0.1°, 13 in Overall Ht (MPN B61898-0000)
API Hydrometer: API ASTM Plain Form, 15/21, 0.1, 6 3/8 in Overall Ht (MPN GW024H)
API
API Hydrometer: API ASTM Plain Form, 15/21, 0.1, 6 3/8 in Overall Ht (MPN GW024H)
API Hydrometer: API ASTM Combined Form, 39/51, 0.1, 15 in Overall Ht (MPN GW055HL)
API
API Hydrometer: API ASTM Combined Form, 39/51, 0.1, 15 in Overall Ht (MPN GW055HL)
API Hydrometer: API Combined Form, 10/45, 0.5, Glass, 15 in Overall Ht (MPN GW6000)
API
API Hydrometer: API Combined Form, 10/45, 0.5, Glass, 15 in Overall Ht (MPN GW6000)