Original 1951 Oil and Gas trade vintage catalog for the ROLO MANUFACTURING COMPANY. Main office and plant was located at 2510 South Boulevard, Houston, TX.

Manufacturers of Oilfield Equipment.

Rolo Wellcheckers are oil and gas separators with an oil meter and gas meter piped on them to measure well fluid easily and accurately.  These units can also be furnished with a free water knockout and with a meter attached to the water discharge line. Wellcheckers are used to make drill stem tests, potential tests, regular periodic production tests, gas-oil ratio tests, and marginal well tests. They enable the operator to measure his well production daily to secure accurate records on which to compute royalties and taxes.

Has product images, description, application and specifications provide product details.

Unbound from a large 1951-1952 Catalog of Oil Field Equipment, this unique old two-page technical brochure would display beautifully matted and framed. Nice graphics. A fabulous addition to your retro petroleum industry library. Pages are loose.