39 Standen Dr.

Hamilton, OH 45015

(513) 942-3800

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ISO Certified Water Tanks
ISO Certified Water Tanks

RTP-1 Tanks

RTP-1 Tanks


ASME RTP-1 is the most comprehensive and active standard in the industry for reinforced thermoset plastic (RTP) equipment.

ASME or American Society of Mechanical Engineers is a high quality design code for many different types of American made products.  RTP-1 was created by ASME for fiberglass reinforced polymer vessels.

Plas-Tanks Industries: ASME RTP-1 Certificate of Authorization

Hamilton, Ohio - Plas-Tanks Industries, Inc., possesses the prestigious “Certificate of Authorization” and corresponding Code Stamp from ASME (American Society of Mechanical Engineers) to produce fiber reinforced plastic vacuum and pressure vessels in accordance with the ASME code procedures.  There are only ten companies, worldwide, who have this honor, which requires certification of laminators and bonders by nationally accredited testing laboratories, plus production and destructive testing of a demonstration vessel (shown here).


Fabrication to the RTP-1 Standard is widely considered to be the highest level of quality, which provides a level of assurance to the customer that their vessels have been fabricated and inspected under controls surpassing the general industry ASTM standards.  Quality elements in the standard include organizational structure, quality assurance programs, demonstration of capability, material control, inspection, corrective action for nonconforming items, and test control.  All of these elements are controlled in a more comprehensive way at RTP-1 authorized facilities than they are at many typical fabrication companies.  Certificate holders must incorporate all of the elements described above and are subject to audits and reviews of the quality control manual & its implementation.

Plas-Tanks was established in 1976 producing chemically resistant equipment of non-corroding non-metallic materials for food, drug, chemical, power, air, water and waste treatment projects.

Fiberglass Reinforced Tanks

Reinforced Advantages of Unlimited Flexibility

Plas-Tanks adapts to your needs and requirements. Our thorough knowledge of materials science and structural dynamics means the tank you buy is the best for your application. No seams to weld and lighter weight means you use less costly lifting equipment. Maintenance is minimized because durable FRP will not rust or corrode. Exterior painting is not required and cleaning requires only a periodic wash with water.

Experience the Plas-Tanks Advantage

360 degrees of support to eliminate stress contractions.

FRP protects and prevents contamination in aggressive chemical environments, such as strong acids and alkalis.

We offer custom designed freeze protection systems when temperature control is critical to processes. Coupled with insulating foam, our thermal maintenance system provides the ultimate freeze protection with maximum efficiency.

Plas-Tanks' fabrication capabilities include shop-built (1' - 15' diameters) and field assembly (16' - 35'+ diameters).

Plas-Tanks automatically designs vessels for the seismic region in which they will be located.

Plas-Tanks provides an exclusive two-year warranty backing for manufactured vessels.