For more than 50 years, Gnali Bocia srl has been steadily developing in the production of gas regulation and control equipment. Production is supported by 4 industrial sites located in the province of Brescia.
We are proud to say that we represent one of the leading companies in gas controls branded “Made in Italy”, recognized worldwide for reliability and quality in the gas sector.
The FG/FG-M/FGB/FGB-M regulators are CE marked and approved by Bureau Veritas under the Pressure Equipment Directive 2014/68/EU (PED) according with EN 334 / EN 14382.
GAS PRESSURE REGULATORS
SERIES FG/FGB 100-200-300
The pressure regulators FG/FG-M/FGB/FGB-M are designed to reduce the pressure of natural gas and lp gas in civil, industrial and commercial applications.
The FG series pressure regulators are direct acting spring loaded regulator type, controlled by a diaphragm and counter spring, designed to provide high precision in regulation. The FG/FG-M/FGB/FGB-M regulators are CE marked and approved by Bureau Veritas under the Pressure Equipment Directive 2014/68/EU (PED) according with EN 334 / EN 14382.
| Body size | DN25x25; DN25x40; DN40x40 |
|---|---|
| Connections | threaded EN 10226 o NPT Flanged UNI (PN) – ANSI |
| Inlet pressure range | BP-MP 0,5 ÷ 10 bar / 7,5÷145 psi TR1-TR 0,5 ÷ 20 bar / 7,5÷290 psi |
| Outlet pressure range | 15 ÷ 4000 mbar / 0,21÷60 psi |
| Safety devices | OPSO&UPSO (option) |
| Top entry | Easy maintenance without the need to remove the body from the line |
| Monitor | FG-M / FGB-M (option) |
| Ready for the new green gases | • Hydrogen ready (blend of Natural Gas+ Hydrogen over 20% H2); • Biomethan / BioNaturalGas |
GAS PRESSURE REGULATORS
SERIES FG/FGB 250-350-500
The pressure regulators FG/FG-M/FGB/FGB-M are designed to reduce the pressure of natural gas and lp gas in civil, industrial and commercial applications.
The FG series pressure regulators are direct acting spring loaded regulator type, controlled by a diaphragm and counter spring, designed to provide high precision in regulation. The FG/FG-M/FGB/FGB-M regulators are CE marked and approved by Bureau Veritas under the Pressure Equipment Directive 2014/68/EU (PED) according with EN 334 / EN 14382.
The FG/FGB 250-350-500 series are designed to be mainly used for gas train installation with sudden flow rate changes, in all sectors of industry: iron, steel, glass, ceramics and in all commercial applications, to operate close to the industrial burners and heat generators thanks for its excellent regulation and lock-up behaviour. Thanks to larger diameter size of diaphragm they guarantee the high flow rate, excellent outlet pressure control, minimum differential pressure and high control accuracy.
| Body size | DN25x40; DN40x40; DN50x50 |
|---|---|
| Connections | threaded EN 10226 o NPT Flanged UNI (PN) – ANSI |
| Inlet pressure range | BP-MP 0,5 ÷ 10 bar / 7,5÷145 psi TR1-TR 0,5 ÷ 20 bar / 7,5÷290 psi |
| Outlet pressure range | 15 ÷ 4000 mbar / 0,21÷60 psi |
| Safety devices | OPSO&UPSO (option) |
| Top entry | Easy maintenance without the need to remove the body from the line |
| Monitor | FG-M / FGB-M (option) |
| Ready for the new green gases | • Hydrogen ready (blend of Natural Gas+ Hydrogen over 20% H2); • Biomethan / BioNaturalGas |
HIGH PRESSURE REGULATORS
HPS100
HPS 100 is a regulator designed to reduce medium and high gas pressures in industrial and commercial applications. Designed to guarantee high regulation precision, this device is widely used in civil and industrial natural gas, manufactured gas and LPG systems. HPS 100 regulator is direct acting type, controlled by a diaphragm and counter spring.
| Body size | DN25x25 |
|---|---|
| Connections | threaded EN 10226 o NPT Flanged UNI (PN) – ANSI |
| Inlet pressure range | 0,5 ÷ 20 bar / 7,5÷290 psi |
| Outlet pressure range | MP: 200 ÷ 500 mbar (2,90 ÷ 7,5 psi) TR1: 400 ÷ 2300 mbar (7,5 ÷ 36,5 psi TR: 2300 ÷ 6000 mbar (36,5 ÷ 87 psi) |
| Top entry | Easy maintenance without the need to remove the body from the line |
| Design standards | EN 334 |
| Ready for the new green gases | • Hydrogen ready (blend of Natural Gas+ Hydrogen over 20% H2); • Biomethan / BioNaturalGas |
SAFETY SHUT-OFF VALVES (SSV) UPSO-OPSO
SERIES VB 100-300-500
The VB shut-off valve, also called pressure switch valve SSV or UPSO-OPSO, have the scope to stop the gas flow when downstream pressure comes out of its operating range.
VB shut-off valve may be integrated with FG pressure regulators (FGB version) or as a single device.
The safety shut-off valves VB are designed as safety devices of gas plants for civil, industrial and
commercial applications. They are suitable for low, medium and high pressure.
They are direct acting type and they could be setted for pressure increase (over pressure OPSO) or
pressure decrease (under pressure UPSO).
| Body size | DN25x25; DN25x40; DN40x40; DN50x50 |
|---|---|
| Connections | threaded EN 10226 o NPT Flanged UNI (PN) – ANSI |
| Inlet pressure range | BP-MP 0,5 ÷ 10 bar / 7,5÷145 psi TR 0,5 ÷ 20 bar / 7,5÷290 psi |
| Outlet pressure range | 6 ÷ 5800 mbar / 0,09÷84 psi |
| Top entry | Easy maintenance without the need to remove the body from the line |
| Ready for the new green gases | • Hydrogen ready (blend of Natural Gas+ Hydrogen over 20% H2); • Biomethan / BioNaturalGas |
RELIEF VALVES
SERIES RV 10-30-35
The relief valve type RV is a device to be installed on pipes or pressure vessels, which have the task of maintaining the pressure in the circuit below a certain range, absorbing and discharging outside small overpressure due to temporary events such as expansion of gas volume for increasing of gas temperature or back pressure shocks. Installed downstream of the pressure regulators they prevent the action of shut off valves not depending from regulators damages or from overheating of the gas pipe with zero flow demand.
| Body size | DN25x25 |
|---|---|
| Connections | threaded EN 10226 o NPT Flanged UNI (PN) – ANSI |
| Outlet pressure range | 15 ÷ 7000 mbar / 0,21÷ 101 psi |
| Top entry | Easy maintenance without the need to remove the body from the line |
| Acceptable gases | any non-corrosive gas |
| Ready for the new green gases | • Hydrogen ready (blend of Natural Gas+ Hydrogen over 20% H2); • Biomethan / BioNaturalGas • Biogas (special execution on demand) |
GAS FILTERS
SERIES GF
Filter GF 846 when installed prevents the passage of particles of dust and debris contained in gas flow, protecting downstream devices as pressure regulators, safety equipments, gas meters, etc…
GF 846 is suitable for indoor and outdoor installations.
| Body size | DN20 up to DN200 |
|---|---|
| Connections | threaded EN 10226 o NPT Flanged UNI (PN) – ANSI |
| Max working pressure | 6 bar |
| Acceptable gases | any non-corrosive gas |
| Materials | Aluminium |
| Ready for the new green gases | • Hydrogen ready (blend of Natural Gas+ Hydrogen over 20% H2); • Biomethan / BioNaturalGas |
FLANGED BODY STEEL GAS CARTRIDGE FILTERS
10 ÷ 85 bar
| Type | Code | Pressure bar | Connections DN | |
|---|---|---|---|---|
| G 0,5 | FLT610525 | 10 – 30 | DN25 PN16 | Body: ASTM A105 Flanging: UNI PN16 On request: • up to DN 200 connection • up to 85bar design • Ts -40°C |
| G 0,5 | FLT610532 | 10 – 30 | DN32 PN16 | |
| G 0,5 | FLT610540 | 10 – 30 | DN40 PN16 | |
| G 1 | FLT611040 | 10 – 30 | DN40 PN16 | |
| G 1 | FLT611050 | 10 – 30 | DN50 PN16 | |
| G 1,5 | FLT611550 | 10 – 30 | DN50 PN16 | |
| G 1,5 | FLT611565 | 10 – 30 | DN65 PN16 | |
| G 1,5 | FLT611580 | 10 – 30 | DN80 PN16 | |
| G 2 | FLT612080 | 10 – 30 | DN100 PN16 |
GAS PRESSURE GOVERNORS
SERIES ST 846
Pressure governor ST 846 due to its regulation accuracy, it is designed for small users and where the gas is delivered in a not uniform manner
Pressure governor ST 846 is suitable for use with non-corrosive gases, previously fi ltered. Inlet and outlet test ports allow to control upstream and downstream pressure (option). The version with incorporated filter eliminate the problem to install a separate filter and reduce the space of installation.
| Body size | DN25x25 |
|---|---|
| Connections | threaded EN 10226 o NPT |
| Inlet pressure range | BP 60 ÷ 100 mbar MP up to 500 mbar |
| Outlet pressure range | 13,7 ÷ 200 mbar |
| Filter | 50 µm |
| Fluid | Natural gas, town gas, lpg, nitrogen, air, any non-corrosive gas |
| Safety devices | Safety diaphragm (standard) and relief valve (option) |
| Reference standards – Approvals | EN 88-1 CE No. 51BS3443 (IMQ) (CE mark) |
GNALI BOCIA SRL
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