GTC ChamberA positive conic seal valve - conveying material to the chamber the first time - every time.

Float block image gtc4 chamber

The GTC Series Glass Tube Vacuum Chamber features a positive conic seal valve that conveys material to the chamber the first time - every time. A unique single-valve air cylinder controls both the vacuum and resin unloading of the vacuum chamber.

Ideal for virgin, premixed virgin and regrind material, the GTC Series is protected with our exclusive "GB" finish for a clean receiving environment throughout the chamber lifetime. In addition, the GTC Series includes other traditional features, including a quick-disconnect lid, tangential material inlets, exceptional resin visibility with a minimal inventory glass tube chamber and an adjustable level sensor.

Add an optional external dual ratio valve to permit proportional loading of dual materials.


● Visual material indication
● Minimal material residence time
● All stainless steel & glass construction
● Exclusive “GB” finish
● 4” & 8” Available as single inlet or with external dual ratio valve
● Adjustable level sensor


Piovan Group President’s message

23 March 2020 S. Maria di Sala, Venice, Italy

Dear Partners,
I would like to update all of our Stakeholders concerning the current operativity of Piovan Group during the medical emergency of COVID-19. Firstly, I want to reassure all of you that any choice and future activity have, as a primary aim, the health and safety of our Collaborators and of our Customers, duly following the regulations issued by the Governments where we operate.
All production sites, service & sales companies are operating with continuity.

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