APIAPI Hydrometers

API Hydrometer: API Combined Form, 30/50, 0.2

The API Hydrometer (MPN GW6004) is an API Combined Form hydrometer with a 30/50 range and 0.2 scale divisions. It features a 0 to 150ºF thermometer and has a 15-inch overall height.

SKU 3G-OTH-368885

Also listed as: GW 6004 · GW-6004

Brand

API

Item

Hydrometer: API Combined Form, 30/50, 0.2

Local availability & support — the Philippines

Delivery: 5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment: Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to: Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

API

Manufacturer Part Number

GW6004 

Range

30/50 

Features

0 to 150ºF Thermometer 

Scale Type

API Combined 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 (MPN GW6004) is an API Combined Form hydrometer with a 30/50 range and 0.2 scale divisions. It features a 0 to 150ºF thermometer and has a 15-inch overall height.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the API Hydrometer GW6004 used for?

The API Hydrometer GW6004 is used to measure the specific gravity of petroleum products and crude oils in laboratory and field testing. Its API Combined Form scale with a 30/50 range and 0.2 divisions, plus a 0 to 150ºF thermometer, makes it suitable for density determination per ASTM standards.

What are the specifications of the API Hydrometer GW6004?

The API Hydrometer GW6004 has a 30/50 range, 0.2 scale divisions, and an API Combined Form scale. It includes a 0 to 150ºF thermometer and measures 15 inches overall height. The manufacturer part number is GW6004. These specs ensure accurate density readings for petroleum testing.

Where to buy the API Hydrometer GW6004 worldwide?

You can source the API Hydrometer GW6004 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply this hydrometer to laboratories and refineries internationally.

How to use and maintain the API Hydrometer GW6004?

To use the API Hydrometer GW6004, gently lower it into a clean sample cylinder containing the petroleum product at the specified temperature. Read the scale at the bottom of the meniscus. After use, rinse with a suitable solvent and store in its protective case to prevent damage. Avoid thermal shock.

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.

Browse all API products →Contact our engineers →