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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-Water Separator for Deadweight Gauge
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  • /media/19340/19340__2.jpgOil-Water Separator for Deadweight Gauge
  • /media/19340/19340__3.jpgOil-Water Separator for Deadweight Gauge
Item# 35266-001

Oil-Water Separator for Deadweight Gauge

Price

$1,625.00 / each

Product Description

* Pressure tested @ 10,000 psi


Details

Refinery Supply Oil Water Separator, 35266-001 is designed for two primary functions. It is intended to eliminate possible contamination to gauges and transducers that are being tested and also designed to prevent water from seeping into the piston & cylinder. While a gauge is tested, the operator is able to bleed off the water that is in the line so only the oil that is directed to pressurize the piston and cylinder is allowed to flow to the cylinder. The water is bled off externally, the dead weight oil pressurizes the piston and cylinder, and the air pressure only goes to the gauge and /or transducer being tested. If water is allowed in the piston and cylinder it will cause an inaccurate reading. (The specific gravity of water is much less than oil and the water leaking out of the cylinder will cause the readings to be inaccurate). In a short time, the water in the piston and cylinder assembly will cause corrosion and wear the assembly. (The tolerance in the assembly is measured in millionths of inches, thus the contaminants in water will cause excessive wear quickly.) 35266-000 Oil Water Separator are sold separately or can be directly attached to new models. If ordered with a new Deadweight Tester, the separator will be attached to the unit unless specified otherwise by the customer.