The MERCURY® pressure regulators, complete with an integrated cylinder valve, are suitable for direct mounting on oxygen cylinders using the threaded connector 25E (EN629-1) or 17E (EN ISO 11116-1). The MERCURY® pressure regulators have a refilling valve appropriate to the required standards of the country of destination. An ergonomic knob allows the user to quickly open and close the cylinder flow, and gives a clear indication about the status of the system (ON-OFF). This device has a double stage preset output pressure, with a control gauge to indicate the pressure in the gas cylinder.

The MERCURY® pressure regulator has a chrome-plated brass structure and is equipped with a preset overpressure valve as a protection against any malfunction in the system. A flowmeter with calibrated orifices supplies the gas through a hose connector with flow adjustable from 2 to 14 L/min, in intervals of 2 L/min. A terminal unit (optional) can be integrated to supply emergency apparatus.

Sizes (LxWxH)

without outlet: 105x65x162 mm
with AFNOR NF-S 90-116 outlet: 108x65x162 mm
with UNI 9507 outlet: 119x65x162 mm


without outlet: 1.60 Kg
with AFNOR NF-S 90-116 outlet: 1.68 Kg
with UNI 9507 outlet: 1.72 Kg

Maximum operating pressure

200 bar


end of scale 315 bar with indication of the cylinder charge status, even when the valve is closed

Gas cylinder coupling

25E (EN 629-1) • 17E (EN ISO 11116-1)

Recharge valve supply coupling

UNI 4406 • NF-E 29-656 • BS 341-2 • DIN 477-1 • ISO 5145

Terminal units (optional)

AFNOR NF-S 90-116 • UNI 9507

Terminal units supply pressure (if present)

400 kPa ± 50 kPa (with cylinder pressure from 160 to 60 bar)

Outlet hose connector

6.5÷8.5 mm


standard full scale flow rate: 14 L/min. • 30 L/min.
accuracy: ±10% of value read or ±0.5 L/min. if greater