PF Aperval

PF Aperval Pilot-Operated Gas Pressure Regulators

Aperval is a pilot-controlled pressure regulator for medium and low pressure applications.

Aperval is normally a fail open regulator and will open specifically under the following conditions:
•    If the  main diaphragm fails;
•    If there is no sensor line input .
This regulator is suitable for use with previously-filtered, non-corrosive gases.

Technical data
• Accuracy class: Up to 2,5
• Available size DN: 1″ – 2″ – 2″1/2 – 3″ – 4″
• Closing pressure class SG: Up to 5
• Design pressure: up to 25 bar (362 PSIG)
• Design temperature: -10°C to +60°C (+14 to +140°F) (higher or lower temperatures on demand)
• Flanging: 150 RF or RTJ according to ANSI B16.5 and PN 25/40 according to ISO 7005
• Maximum working differential pressure: 19 bar (275,5 Psig)
• Minimum working differential pressureL: 450 mbar (7.25 PSIG)
• Outlet pressure range of Wd: 5 mbar to 9500 mbar (2″w.c. to 137.5 psig)
• Range of inlet pressure bpu: 0,5 to 25 bar


Aperval Bulletin

Aperval Technical Manual

APF Aperval Poster

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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.