lens expansion joints

The Powerz manufactured lens expansion joints are designed to compensate the thermal elongations of round and rectangular cross-section air and gas ducts and round cross-section water and steam pipelines of thermal power plants and other industrial plants with flue gases emission or water heating processes. Powerz is a modern machine-building enterprise equipped with all kinds of state-of-the-art  machinery for metal procession. Owing to this we produce high-quality boiler equipment.

On customer's request, we supply the lens compensators made of various constructional and stainless steels depending on the climatic region, the working media parameters and the operating performance of pipelines. Optionally, on customer's request, we equip the compensators with protective devices in the form of a glass or a sleeve to protect the lense material from abrasive wear, and provide an external protective casing to protect the lens compensator from outer mechanical impacts in operation. To drain the condensate from the lower part of the lenses, the compensators may be optionally equipped with drainage tubes. For ease of transportation and installation, the lens compensators are fitted with the tightening devices (the ties). Either “Weld fastening” or “Flange fastening” mounting options are provided. Powerz’ own design department and production shop develop and manufacture the lens compensators which meet all the customer's requirements for achieving high service life.

Powerz lens expansion joints for gas duct

The round cross-section lens compensators are designed for installation in round cross-section air and gas ducts with a pressure of up to 0.02 MPa, in accordance with the dimensions specified in the technical documentation. Round cross-section lens compensators are manufactured in accordance with standard technical documentation listed below. Upon the customer’s request and drawings, we are ready to design and manufacture the non-standard round cross-section lens compensators.



Round lens expansion joints are manufactured according the following technical documentation:
Single-lens compensator
Two-lens compensator
Three-lens compensator
Four-lens compensator

Rectangular cross-section lens compensators are designed for use in the dust, air and gas ducts with rectangular cross-section. Rectangular cross-section lens compensators are manufactured in accordance with standard technical documentation listed below. Upon the customer’s request and drawings, we are ready to design and manufacture the non-standard rectangular cross-section lens compensators.



Rectangular lens expansion joints are manufactured according the following technical documentation:
Single-lens compensator
Two-lens compensator
Three-lens compensator
Four-lens compensator

Powerz lens compensators 

The lens axial compensators have flow sections from DN100 to DN2200 mm. They are designed to compensate solely the axial thermal elongations of pipelines handling the non-aggressive or the slightly aggressive media under a nominal pressure PN up to 1.6 MPa (16 kgf / cm2) and a temperature up to 300 °C (for DN ≤ 400 mm the permissible temperature is up to 425 °C).

Lens axial compensators:
Single-lens compensators
Two-lens compensators
Three-lens compensators
Four-lens compensators
Angular shaped lens compensators:
Single-lens compensators
Two-lens compensators
Three-lens compensators
Four-lens compensators
Duplex angular shaped lens compensators:
Single-lens compensators
Two-lens compensators
Three-lens compensators
Four-lens compensators

Powerz uses the state-of-the-art welding equipment as well as equipment for high-quality molding of the lenses. Our production processes are modeled after the best world industry standards. Our products meet the high world quality standards. We are among manufacturers with complete production cycle that have lens molding machines. The state-of-the-art, certified welding equipment provides a reliable and pressure-tight lens junction. The lenses material is chosen depending on coming operating conditions. All lens compensators we produce necessarily pass the test system for strength, pressure-tightness and tension/compression. Powerz offers the unique technical solutions which are of no analogues worldwide. Our finished products are duly authorized and certified.


complete production cycle
Lens molding machine
Roll forming machine for round cross-section compensators
Certified welding
Company
197PROJECTS IMPLEMENTED
3,3 GW of capacity provided by our equipment
24 OUR EQUIPMENT IS USED IN 7 COUNTRIES
Project geography