Pietro Fiorentini supplier in Romania
Pressure regulators for natural gas networks
Founded in 1940 · Headquarters: Arcugnano (Vicenza), Italy
Who is Pietro Fiorentini and what does it make?
Pietro Fiorentini is an Italian manufacturer from Arcugnano, near Vicenza, founded in 1940, specialised in components for the regulation, measurement and distribution of natural gas — with more than 2,400 employees and a presence in more than 40 international locations. The pressure regulator range includes the Aperflux 101 and Aperflux 851 series, ASX 176, the Dival (500, 600, 700) and Terval (A, R) families, plus the FE, FEX and NeoR models, to which are added butterfly valves, floating or trunnion ball valves, gas meters (diaphragm, smart ultrasonic, turbine or rotary) and systems for gas treatment and biogas compression. We can quote individual regulators and meters, by product code.
The company is specialised mainly in the natural gas chain — from extraction and transmission to network distribution and end use. In recent years the range has extended towards the energy transition, with compression systems for biogas and electrolysers for hydrogen production, plus software solutions for monitoring gas and water networks. The company holds SA8000 social responsibility certification.
In gas networks and service connections, the Pietro Fiorentini range covers both service pressure regulators and metering equipment, with technical specifications for each product code.
What do we supply from the Pietro Fiorentini range?
| Product | Description |
|---|---|
| Aperflux 101 / 851 pressure regulators | Pressure regulators for natural gas distribution networks, used at regulating and metering stations on medium- and low-pressure pipelines. For a quotation we need the inlet pressure, the required outlet pressure and the maximum flow of the installation. |
| Dival family (500, 600, 700) | Pressure regulators for different flow and pressure ranges, used both at handover stations on the transmission network and at smaller regulating points on the distribution network. |
| Terval family (A, R) | Regulators for specific gas pressure regulation applications, with A and R versions adapted to different mounting configurations and station safety requirements. |
| Gas meters (diaphragm, ultrasonic, turbine, rotary) | Metering ranges for measuring gas consumption at residential, commercial and industrial level, with smart ultrasonic versions for remote reading and integration into telemetry systems. |
Why Pietro Fiorentini?
- Range along the gas chain: pressure regulators, valves, meters and treatment systems
- The Aperflux, ASX, Dival and Terval regulator families cover different pressure and flow ranges
- Extension towards the energy transition — biogas compression and hydrogen electrolysers
- More than 2,400 employees and a presence in more than 40 international locations
- SA8000 certification for social responsibility
Which Pietro Fiorentini codes and series are requested most often?
| Code | Description |
|---|---|
| Aperflux 101 | pilot-operated pressure regulator, medium-to-high pressure stage |
| Aperflux 851 | pilot-operated pressure regulator, Aperflux family, higher pressure |
| ASX 176 | direct-acting pressure regulator, medium-to-high pressure |
| Dixi AP | pilot-operated pressure regulator, medium-to-high pressure stage |
| Reflux 819 | pilot-operated pressure regulator, medium-to-high pressure stage |
| Terval AP | pilot-operated pressure regulator, medium-to-high pressure stage |
| ATF | direct-acting pressure regulator, medium-to-high pressure |
| Dival 160 AP | direct-acting pressure regulator, medium-to-high pressure |
| FT 518 | direct-acting pressure regulator |
| Staflux 185 | direct-acting pressure regulator, Staflux family |
| Aperval 101 | pilot-operated pressure regulator, medium-to-low pressure stage |
| Reval 182 | pilot-operated pressure regulator, medium-to-low pressure stage |
| Terval/A | pilot-operated pressure regulator, Terval family, version A |
| Terval/R | pilot-operated pressure regulator, Terval family, version R |
| Cirval | direct-acting pressure regulator, medium-to-low stage |
| Dival 500 | direct-acting regulator, DN 1x1 inch, outlet 13-2500 mbar |
| Dival 600 | direct-acting regulator, Dival family, medium-to-low stage |
| Dival 700 | direct-acting regulator, Dival family, medium-to-low stage |
| Dival SQD-1 | compact direct-acting regulator, Dival family |
| Norval | direct-acting pressure regulator, medium-to-low stage |
| FE 515 | direct-acting pressure regulator, low-pressure stage |
| HP 100 | direct-acting pressure regulator, low-pressure stage |
| Goval | pressure governor for gas regulating stations |
| RCS 201 | pressure governor, RCS family |
| MM | diaphragm gas meter |
| RS 2.0 | diaphragm gas meter, recent generation |
| HM | smart gas meter |
| FioSonic | ultrasonic gas flowmeter, industrial use |
Where is Pietro Fiorentini equipment used?
- Natural gas networks — pressure regulation at handover stations and service connections
- Oil and gas production — equipment for extraction fields
- Renewable energy — biogas compression systems and hydrogen electrolysers
- Water networks — monitoring software solutions
- Waste management — systems for biogas recovery
How do we supply Pietro Fiorentini in Romania?
For Pietro Fiorentini regulators, we give the lead time and availability in the quotation; we rely on the manufacturer's technical documentation for each technical specification presented here. We bring in regulators and meters to order through supply channels in the EU, usually in 1–4 weeks from order confirmation. For a correct quotation we need the exact product code or, if you do not have it, the inlet/outlet pressure, the required flow and the type of installation (service connection, regulating station or metering). The design of the regulating and metering station is carried out outside our quotation — we supply the equipment, and the technical design remains the responsibility of the licensed designer.
The design of the regulating and metering station is carried out outside our quotation, and availability for the less common product codes is confirmed in the quotation.
Frequently asked questions about Pietro Fiorentini
What is the difference between the Pietro Fiorentini Dival 500 and Dival 600 regulators?
Dival 500 is a direct-acting regulator for medium-to-low pressure, with DN 1x1 or 1x1 1/2 inch connections and an outlet pressure adjustable between 13 and 2500 mbar, depending on the version. Dival 600 belongs to the same construction family, but covers a different flow or field of application, according to the manufacturer's data sheet. The choice between the two takes into account the required flow and the inlet pressure available at the station.
What is the Pietro Fiorentini Aperflux 101 regulator?
Aperflux 101 is a pilot-operated pressure regulator, used in medium and high pressure stages at natural gas regulating stations. It works with a separate pilot that controls the opening of the main valve, giving fine control of the outlet pressure even with large flow variations. It is part of the same construction family as Aperflux 851.
What is the difference between direct-acting and pilot-operated regulators?
Direct-acting regulators, such as ATF, Dival or Cirval, use the pressure difference on the diaphragm to position the valve, and are simple, robust solutions for small and medium flows. Pilot-operated regulators, such as Aperflux, Dixi AP or Terval AP, add a separate pilot that increases control accuracy, and are recommended where flow variations or accuracy requirements are higher.
Do you supply Pietro Fiorentini pressure regulators in Romania?
Yes, we bring in regulators from the Aperflux, Dival, Terval and Reflux families presented above to order, based on the manufacturer's catalogues; the range is supplied to order. The lead time to order is usually 1–4 weeks, depending on the model and the working pressure requested. For a correct quotation, send the inlet and outlet pressure, the required flow and the connection size.
What do I need to send for a Pietro Fiorentini gas regulator quotation?
You need to specify the available inlet pressure, the required outlet pressure, the maximum gas flow handled and the size of the pipe connections. These data allow the correct choice between direct-acting versions, such as Dival or Cirval, and pilot-operated ones, such as Aperflux or Terval, avoiding wrong sizing of the regulating station.
How do I request a Pietro Fiorentini quotation?
Send the Pietro Fiorentini code from the nameplate and the quantity; we reply in English with availability and the lead time written in the quotation.
Request a quoteUpdated: 12 November 2026 · Sources: Pietro Fiorentini, Pietro Fiorentini S.p.A. (manufacturer documentation)