PF Trias

PF Trias Direct-Acting Gas Pressure Regulators

TRIAS pressure regulators are direct-acting devices for low and medium pressure, controlled by a diaphragm and counter spring.

These regulators are suitable for use with pre-filtered, non-corrosive gases.

Pressure in the top chamber is creating the counter action similar to the one of a spring in more conventional regulators.

Technical data
• Accuracy class: up to 5
• Available size DN: 1″1/2-2″
• Closing pressure class SG: up to 10
• Design pressure: up to 19,2 bar
• Design temperature: -20°C to 60°C
• Flanging: class 150 RF according to ANSI B16.5 and PN16 according to ISO 7005
• Outlet pressure range of Wd: 15 ÷ 4000 mbar
• Range of inlet pressure bpu: 0,2 – 8 bar on BM version 0,2 – 18 on BB version


PF Trias Catalog
Trial Data Sheet

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With heavy hearts, we announce the passing of our founder James (Jim) Bell.

Jim passed away on June 15, 2021. He will be greatly missed by his colleagues, family, friends and the many people he impacted over his 89 years of life. His full obituary can be found here.

In observance of his passing, all ECCO/GASCO offices will be closed, Friday, June 18.