About Us

Engineering Design, Specialized Manufacturing, and Durable Implementation

Payesh Gostar Behin Andish Co., operating under the brand name Poly Payesh, has developed its activities in the design and manufacturing of polyethylene equipment—drawing on technical expertise, hands-on execution experience, and an engineering mindset—with the goal of delivering specialized solutions in the water, wastewater, and wastewater treatment systems industry. The company is the result of years of experience of managers and specialists who have focused their professional work specifically on the design of polyethylene systems, industrial tanks, septic tanks, and wastewater treatment packages.

At Poly Payesh, a project is not seen as merely producing a tank or a simple system; rather, each project is approached as an engineering process. Understanding the behavior of polyethylene structures, analyzing execution conditions, evaluating environmental pressures, burial conditions, wastewater type, flow rate, operational requirements, and system service life are among the factors taken into account throughout the design and manufacturing of the products.

Why Poly Payesh

The managers and engineering team at Poly Payesh, with a focus on modern polyethylene systems, have worked to develop products that are not only high-performing but also economically optimal for projects. Experience across a variety of building, villa, civil, and industrial projects has given the company a precise understanding of clients' real needs, execution constraints, and operational challenges in water and wastewater projects.
One of Poly Payesh's most important approaches is applying an engineering mindset to the selection of structure and product design. For this reason, in designing buried tanks, polyethylene septic tanks, and wastewater treatment packages, parameters such as soil pressure, traffic load, groundwater level, climatic conditions, type of operation, and the system's required efficiency are carefully evaluated—so that the final product is not merely a manufactured piece of equipment, but part of a reliable technical and engineering solution.

Poly Payesh's core expertise in polyethylene systems has led the company to place particular emphasis on designing structures that—beyond high strength and complete water-tightness—also deliver stable performance against corrosion, moisture, environmental conditions, and chemicals. The use of engineered PE80 and PE100 polyethylene grades and the design of products in various spiral, corrugated, and solid-wall structures is part of this specialized approach to the manufacturing process.
In the field of wastewater treatment as well, the company's approach is built on designing practical systems that are genuinely operable in real conditions. In practice, many projects face problems such as difficult maintenance, high operating costs, or unstable performance. For this reason, in designing wastewater treatment packages, Poly Payesh strives to consider not only treatment efficiency but also factors such as ease of operation, reduced equipment wear, process stability, and simple maintenance.

Management Vision

The technical perspective of the company's managers toward the polyethylene and wastewater treatment industry has meant that Poly Payesh is recognized not merely as a manufacturer, but as an engineering firm active in the design and implementation of wastewater management systems, buried tanks, and polyethylene equipment. The company's goal is to deliver products that perform reliably, stably, and economically under real project conditions and that meet operators' needs over the long term.