We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

3G Electric
⌕
RFQ CartGet a QuoteSign inSign up
API Hydrometer: API ASTM Combined Form, 59/71, 0.1, Glass - API Hydrometers
APIAPI Hydrometers

API Hydrometer: API ASTM Combined Form, 59/71, 0.1, Glass

The API Hydrometer is an API ASTM Combined Form hydrometer with a 59/71 range and 0.1 scale divisions, featuring a +30 / 180ºF Mercury Thermometer. This glass instrument has a 15-inch overall height and is identified…

SKU 3G-OTH-368879

Brand
API
Item
Hydrometer: API ASTM Combined Form, 59/71, 0.1, Glass
Category
API Hydrometers
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
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

Technical Specifications

API
Manufacturer Part Number
GW057HM
Range
59/71
Features
+30 / 180ºF Mercury Thermometer
Scale Type
API ASTM Combined Form
Scale Divisions
0.1
View Full Spec Sheet

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 ASTM Combined Form hydrometer with a 59/71 range and 0.1 scale divisions, featuring a +30 / 180ºF Mercury Thermometer. This glass instrument has a 15-inch overall height and is identified by manufacturer part number GW057HM.

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 →

More from API

View all API parts →
API Hydrometer: API Plain Form, 39/51, 0.2, 6 in Overall Ht (MPN GW2505). Key specifications — Range: 39/51; Scale Divisions: 0.2; Scale Type: API Plain Form.
API
API Hydrometer: API Plain Form, 39/51, 0.2, 6 in Overall Ht (MPN GW2505). Key specifications — Range: 39/51; Scale Divisions: 0.2; Scale Type: API Plain Form.
API Hydrometer: API Combined Form, 50/70, 0.5, Glass, 7 1/2 in Overall Ht (MPN GW5006). Key specifications — Features: +20 to 130ºF Thermometer; Range: 50/70; Scale Divisions: 0.5; Scale Type: API Combined Form.
API
API Hydrometer: API Combined Form, 50/70, 0.5, Glass, 7 1/2 in Overall Ht (MPN GW5006). Key specifications — Features: +20 to 130ºF Thermometer; Range: 50/70; Scale Divisions: 0.5; Scale Type: API Combined Form.
API Hydrometer: API Combined Form, 30/50, 0.2, 15 in Overall Ht (MPN GW6004). Key specifications — Features: 0 to 150ºF Thermometer; Range: 30/50; Scale Divisions: 0.2; Scale Type: API Combined Form.
API
API Hydrometer: API Combined Form, 30/50, 0.2, 15 in Overall Ht (MPN GW6004). Key specifications — Features: 0 to 150ºF Thermometer; Range: 30/50; Scale Divisions: 0.2; Scale Type: API Combined Form.
API Hydrometer: API ASTM Plain Form, 37/49, 0.1, Glass, 13 in Overall Ht (MPN GW011H). Key specifications — Range: 37/49; Scale Divisions: 0.1; Scale Type: API ASTM Plain Form.
API
API Hydrometer: API ASTM Plain Form, 37/49, 0.1, Glass, 13 in Overall Ht (MPN GW011H). Key specifications — Range: 37/49; Scale Divisions: 0.1; Scale Type: API ASTM Plain Form.
API Hydrometer: API Plain Form, 69/81, 0.2, 6 in Overall Ht (MPN GW2508). Key specifications — Range: 69/81; Scale Divisions: 0.2; Scale Type: API Plain Form.
API
API Hydrometer: API Plain Form, 69/81, 0.2, 6 in Overall Ht (MPN GW2508). Key specifications — Range: 69/81; Scale Divisions: 0.2; Scale Type: API Plain Form.
API Hydrometer: API ASTM Combined Form, 29/41, 0.1, 15 in Overall Ht (MPN GW054HL). Key specifications — Features: 0 / 150ºF Mercury Thermometer; Range: 29/41; Scale Divisions: 0.1; Scale Type: API ASTM Combined Form.
API
API Hydrometer: API ASTM Combined Form, 29/41, 0.1, 15 in Overall Ht (MPN GW054HL). Key specifications — Features: 0 / 150ºF Mercury Thermometer; Range: 29/41; Scale Divisions: 0.1; Scale Type: API ASTM Combined Form.
API Hydrometer: API Combined Form, 45/90, 0.5, 7 1/2 in Overall Ht (MPN GW5001). Key specifications — Features: +20 to 130ºF Thermometer; Range: 45/90; Scale Divisions: 0.5; Scale Type: API Combined Form.
API
API Hydrometer: API Combined Form, 45/90, 0.5, 7 1/2 in Overall Ht (MPN GW5001). Key specifications — Features: +20 to 130ºF Thermometer; Range: 45/90; Scale Divisions: 0.5; Scale Type: API Combined Form.
API Hydrometer: API Plain Form, 29/41°, 0.1°, Ballast/Glass, +/-0.1°, 15 in Overall Ht (MPN B61823-0300). Key specifications — Features: 0 to 150ºF Thermometer; Range: 29/41°; Scale Divisions: 0.1°; Scale Type: API Plain Form.
API
API Hydrometer: API Plain Form, 29/41°, 0.1°, Ballast/Glass, +/-0.1°, 15 in Overall Ht (MPN B61823-0300). Key specifications — Features: 0 to 150ºF Thermometer; Range: 29/41°; Scale Divisions: 0.1°; Scale Type: API Plain Form.