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Do not make orders from our website, if orders are needed, please call us at 918-251-0353 or visit us at robinsonmfgcoinc.com.

Robinson Manufacturing Co., Inc. is pleased to announce our acquisition of the Refinery Supply Co. beginning July 1st, 2026.

Refinery Supply Co. has been a premier manufacturer of dead weight gauges and testers as well as many other testing instruments for the oil and gas industries for over 100 years.

Robinson Manufacturing Co., Inc. has been setting the standard for oil centrifuges and petroleum products since 1954. Family owned and operated, we take pride in our quality and customer service. Our products are hand-made in the USA with industrial grade materials and components following ASTM and API testing standards.

You can contact customer service at 918-251-0353 or via e-mail at joey@robinsonmfgcoinc.com or rodney@robinsonmfgcoinc.com. While your point of contact will change the manufacturing processes will remain the same.

We value your business and look forward to continuing our business relationship.

If you have any questions, please reach out to me at william@robinsonmfgcoinc.com.

Regards,
Rico A. Tejeda
President

Oil Thief, 16" Clear Barrel, Butterfly Valve
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  • /media/17866/17866__2.jpgOil Thief, 16" Clear Barrel, Butterfly Valve
Item# 27671-021

Oil Thief, 16" Clear Barrel, Butterfly Valve

Price

$495.00 / each

Product Description

* Capacity: 928mL
* Length: 4.50”
* Width: 3.50”
* Height: 18.00”
* Weight: 6.00lb

Details

The 27671-021 Butterfly Valve Oil Thief has quickly become the preferred choice for many thieving applications. The quarter-turn concentric valve opening/closing assembly is located within the barrel making the unit more compact and allows the thief to pass through openings as small as 5 inches in diameter. The thief allows for a quick release of samples through the bottom end of the barrel. The rotating valve disk includes a replaceable rubber “O” ring that ensures a tight seal and prevents leaking. Each thief has four legs in the bottom casting which make the thief a stable hydrometer cylinder. The top casting includes a hanger for hanging the thief on a tank hatch or equipment case. Thieves offer a single trip action, simple closure tension adjustment, and adjustable trip rod graduated at standard extension intervals. Barrels are constructed from clear plastic, brass, or aluminum, and are available in 12-inch, 16-inch, and 18-inch lengths. Drain valves are sold separately and can be installed at most heights on the barrel.