Gas pressure regulator ASX 176
diaphragmsingle-stagestainless steel

gas pressure regulator
gas pressure regulator
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Number of stages
stainless steel, steel, carbon steel
Other characteristics

Min.: 0.5 bar (7.25 psi)

Max.: 102 bar (1,479.38 psi)

Orifice diameter

Min.: 1 in

Max.: 6 in


Min.: 0 °C (32 °F)

Max.: 60 °C (140 °F)


ASX 176 ASX 176 is a downstream pressure regulator, pilot controlled, for medium and high pressure applications. It is particularly suitable for use within the framework of installations for the distribution of natural gas, as well as for supply networks for civil and industrial use. The accuracy of the regulated pressure, the high rangeability ratio, together with the fast adaption to changes in the operating conditions, even in the presence of abrupt changes in the flow rate, makes the Regulator ASX 176 particularly suitable for uses in gas supply installation of electric power generation stations (Turbogas). The ASX 176 regulator is classified according to the European standard EN334, as a regulator which reacts in closure (Fail to Close). Pietro Fiorentini also provides ASX 176/FO, the Fail to Open version. ASX 176 is the Axial regulator of Pietro Fiorentini, with an increased capacity to allow greater flow rates compared to the other types of regulators of the same size. Materials:** ¢ Body: Steel ASTM A 350 LF2 ¢ Plug: ASTM A 350 LF2 Nikel coated on sealing surface ¢ Seat: Polimer / Nitril rubber vulcanized on a metal support ¢ Diaphragm: Rubberized canvas (performed by hot-pressing process.). ¢ Sealing ring: Nitril rubber ¢ Connection fittings: In zinc-plated carbon steel according to DIN 2353; Stainless steel on request. Functional features:* ¢ Maximum inlet pressure: Up to 102 bar ¢ Range of downstream pressure: from 0,3 bar to 74 bar depending on installed pilot (see Pilot section). ¢ Minimum working differential pressure: 0,5 bar ¢ Minimum ambient temperature: Execution up to -40°C, ¢ Maximum ambient temperature: +60°C


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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.