Gas Pressure Regulators

Prominent & Leading Manufacturer from New Delhi, we offer fb double stage pressure regulators, 182 reval gas pressure regulators, 507 - 512 dival gas pressure regulators, 819 reflux gas pressure regulators, aperflux gas pressure regulators and dival gas pressure regulators.

FB Double Stage Pressure Regulators

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  • FB Double Stage Pressure Regulators
  • FB Double Stage Pressure Regulators
  • FB Double Stage Pressure Regulators

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Product Details:

Accuracy classup to 5
Closing pressure class SGup to 10
Outlet pressure range of Wd13/180 mbar
Range of inlet pressure bpu0.15/8.6 bar
Threaded connectionssee catalog
BrandPietro Fiorentini
Design Pressure8.6 bar
ModelFE-FEX-FB

The FB Double Stage Pressure Regulators FB series are widely used both in civil and industrial installations using natural gas, LPG or non-corrosive gases. These regulators are designed to be fitted directly to the users' flow meter or assembled on riser shafts for civil uses.

 

They can be installed in any position provided that they are protected against atmospheric factors. The internal relief valve vent can be run outside if installed in enclosed spaces or for the underground plant.

 

Thanks to the concept of double regulation stage, it is possible to achieve a high accuracy, high operating reliability, simple to install. These regulators are manufactured to UNI 8827.


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Item Code: FE-FEX-FB

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182 Reval Gas Pressure Regulators

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Product Details:

Accuracy Class Acup to 2.5
Closing Pressure Class Sgup to 5
Design Pressureup to 25 bar
Model NumberReval 182
BrandPietro Fiorentini
Available size DN1" - 2" - 2" 1/2 - 3" - 4" - 6" - 8" - 10"
Design temperatureminus 20 deg plus 60 deg C (higher or lower temperatures on demand)
FlangingANSI 150 RF o RTJ according to ANSI B16.5 and PN16/25/40 according to ISO 7005
Maximum working differential pressure25
Minimum working differential pressure100 mbar
Outlet pressure range of Wd6 to 12000 mbar
Range of inlet pressure bpu0.2 to 25bar

The Reval 182 is a pilot-controlled pressure regulator for medium and low pressure.

The Reval 182 is a 'fail close' regulator, i.e. it closes if:
  • The  main diaphragm fails
  • The  pilot diaphragm/s fail
  • There is no feed to the pilot loop.

 

These regulators are suitable for use with pre-filtered, non-corrosive gases.

 

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Item Code: Reval-182

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507 - 512 Dival Gas Pressure Regulators

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Product Details:

Accuracy class ACup to 5
Available size DNDival 507 - 512 1"" - 1"" 1/2 Dival 520 - 522 2
Design temperatureminus 20 deg C plus 60 deg C
Outlet pressure range of WdBP 11- 110 mbar MP 80 - 300 mbar TR 300 - 3000 mbar
Range of inlet pressure bpuBP 0.5/10 bar MP / TR 0.5/20 bar
Closing Pressure Class Sgup to 5
Design PressureBP 10 bar MP / TR 20 bar
Model NumberDival 507 - 512
BrandPietro Fiorentini

Spring loaded regulator
  • Design temperature: -20 °C to +60 °C (-4 °F to + 140 °F)
  • Ambient temperature: -20 °C to +60 °C (-4 °F to + 140 °F)
  • Over pressure shut-off device (OPSO)
  • Dival 600 - 700 ... + LA
  • Under pressure shut-off device (UPSO)
  • Relief valve on request for series 600 and 700.

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Item Code: Dival-600

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819 Reflux Gas Pressure Regulators

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Product Details:

Design pressureup to 1,450 PSIG
Minimum working differential pressure7.25 PSIG
Accuracy class ACup to 1%
Available size DN1"- 2"- 3"- 4"- 6"- 8"- 10"- 12"
Maximum working differential pressure99,7
Range of inlet pressure bpu11.6 to 1,450 PSIG
Outlet pressure range of Wd5 to 1,073 PSIG
Flanging150-300-600 RF or RTJ according to ANSI B16.5 and PN 16 according to ISO 7005
Design temperatureminus 10 deg C to plus 60 deg C (plus 14 to plus 140 deg F) (higher or lower temperatures on demand)
Closing Pressure Class Sg5% to 1% depending on outlet pressure
Model NumberReflux 819
BrandPietro Fiorentini

Reflux 819 is a downstream pilot-controlled pressure regulator for medium and high pressure applications.

 

It is particulary suitable for use within the framework of installation for the distribution of natural gas, as well as for supplying network for civil and industrial use.

 

The Reflux 819 regulator is classified according to the European standard EEN 334 as a regulator which reacts in closure (Fail to close).

 

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Item Code: Reflux-819

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Aperflux Gas Pressure Regulators

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Product Details:

Design pressureup to 85 bar
Minimum working differential pressure1 bar (reccomended Less than 2 bar)
Accuracy class ACup to 1
Closing pressure class SGup to 2,5
Available size DN2"-3"
Design temperatureminus 10 deg plus 60 deg C (higher or lower temperatures on demand)
FlangingANSI 300/600 RF o RTJ according to ANSI B16.5
Maximum working differential pressure84,2
Outlet pressure range of Wd0.8-74 bar
Range of inlet pressure bpu1.8-85 bar
Model NumberAperflux 101
BrandPietro Fiorentini

Our firm is a leading name, involved in providing a comprehensive series of Aperflux Gas Pressure Regulators. Presented range is immensely admired owing to their top performance and reasonable rates


Pilot-operated “fail open” regulator

  • depending on installed pilot
  • Design and Ambient temperature: -10°C to + 60°C (+14 to + 140 °F)
  • (-20°C to + 60°C -4 to + 140°F on request)
  • Recommended > 2 bar (30 Psig)
  • Flanging: class 150-300-600 RF or RTJ according to ANSI B16.5 and
  • PN16 according to ISO 7005.
  • Options: incorporated slam-shut, monitor, silencer; for operation as
  • in-line monitor; remote control.

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Item Code: Aperflux-101

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Aperflux Gas Pressure Regulators

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Product Details:

Design pressureup to 19,6 bar
Minimum working differential pressure0.5 bar - Recommended Less than 2 bar
Accuracy class ACup to 5
Available size DN1", 2", 3", 4", 6", 8", 10"
Design temperatureminus 20 deg C a plus 60 deg C (higher or lower temperatures on request)
FlangingClass 150 RF according to ANSI B16.5 and PN16 according to ISO 7005
Maximum working differential pressure87,5 bar
Outlet pressure range of Wd12 to 1,073 PSIG (depending on the installed pilot)
Range of inlet pressure bpu1,3 - 85 bar
Closing Pressure Class Sgup to 10%
Model NumberAperflux 851
BrandPietro Fiorentini

The Terval is a pilot-controlled regulator for medium and low pressure suitable for use with pre-filtered non-corrosive gases.
This regulator is designed such that the devices listed below are fitted to a single unit :

  • The main pressure regulator
  • The emergency regulator "monitor"
  • The slam shut valve

Pilots, valve, seat of these devices are maintained independently. With this solution it is possible to reduce the dimensions of the pressure reducing unit while maintaining all safety devices at the same time..
The regulator can also be fitted with a built-in silencer without modifying the body. "Top entry" design allows  easy regular  maintenance without removing the body from the pipeline.

Two versions are available:

  • The TERVAL main regulator is of the fail open type while the monitor is of the  fail close type;
  • TERVAL R both main regulator and monitor are of the fail close type.

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Item Code: Aperflux-851

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Dival Gas Pressure Regulators

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Product Details:

Design Pressure85 bar
Accuracy Class ACup to 5
Closing Pressure Class SGup to 10
ModelDival - 160 AP
Available size DN1"
Design temperatureminus 10 deg C plus 60 deg C
Flangingclass 300-600 RF accordnig to ANSI B16.5.
Outlet pressure range of Wd0,85 to 4,5
Range of inlet pressure bpu1,4 to 85 bar
BrandPietro Fiorentini

The DIVAL 500 series of spring loaded, diaphragm controlled balanced plug gas regulators are suitable for low, medium and high pressure.

Divals and shut-off device series regulators are supplied with internal sensing lines. Both the regulator and the shut-off device are preset for optional connection to an external sensing line by the customer.

They are widely used in both civil and industrial installations using Natural Gas, LPG and other non-corrosive gases.

 

The special regulator design combined with a balanced plug result in:

  • High flow rate coefficient,
  • High accuracy, even at maximum flow rates,
  • Reduced lock-up pressure zone and lock-up pressure,
  • Reduced response times,
  • No internal leakage at zero flow rate,
  • Fail open type,
  • Regular l maintenance without disassembling the body from the pipework,
  • Ability to retrofit the slam-shut OPSO/UPSO, (only LA model) without modifying the existing pipe.

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Item Code: Dival-160

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Dival Gas Pressure Regulators

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Product Details:

Design PressureBP 10 bar MP / TR 20 bar
Accuracy Class ACup to 10 bar
Closing Pressure Class SGup to 10 bar
Design temperatureminus 20 degree C plus 60 degree C
Available size DN1" - 1" 1/2
Range of inlet pressure bpuBP 0.5/10 bar MP / TR 0.5/20 bar
Model NumberDival 500
Outlet Pressure Range WdBP 13- 100 mbar MP 100 - 300 mbar TR 300 - 2500 mbar
BrandPietro Fiorentini

DIVAL series gas pressure regulators are spring-loaded gas regulators with balanced plug, diaphragm command and contrast action by spring, suitable for low, medium and high pressures.

Divals and shut-off device series regulators are supplied with internal sensing lines. Both regulator and shut-off device are preset for connection to an external sensor line by the customer, related to flowrate diagram on next page. They are widely used either in civil or industrial plants, using natural gas or LPG or non-corrosive gas.

Thanks to the concept of a balanced plug to achieve a: 
  • High flow rate coefficient;
  • Highly accurate, even at maximum flow rates;
  • Reduced lock-up pressure zone and lock up the pressure;
  • Reduced response times;
  • No internal leakage at zero?? i  flow rate;
  • fail open type;
  • Regular  maintenance without disassembling the body from pipes;
  • possibility to incorporate the slam-shut (OPSO/UPSO) even on regulators already installed, without modifying the existing pipes.

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Item Code: Dival-507-512

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Dival Gas Pressure Regulators

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Product Details:

Accuracy class ACup to 5
Design temperatureminus 20 deg C to plus 60 deg C (minus 4 deg F to plus 140 deg F)
Flangingclass PN 16/25 according to ISO 7005-1, ISO 7005-2; class ANSI 150RF according to ANSI B16.5, ASME B
Outlet pressure range of WdDN 25 BP/MP 12 to 340 mbar TR 300 a 4200 mbar DN 40-50 BP 12 to 85 mbar MP 80 a 340 mbar TR 300 to 4
Range of inlet pressure bpu0,1 to 20 bar
Threaded connectionsDN 2" Rp ISO 7-1 or DN 2"NPTF ASME B1.20.1 (only ductile iron)
Design Pressureup to 20 bar (290 Psig)
Model NumberDival 600
BrandPietro Fiorentini

Spring Loaded Regulator:
  • Design temperature: -20 °C to +60 °C (-4 °F to + 140 °F)
  • Ambient temperature: -20 °C to +60 °C (-4 °F to + 140 °F)
  • Over pressure shut-off device (OPSO)
  • Dival 600 - 700 ... + LA
  • Under pressure shut-off device (UPSO)
  • Relief valve on request for series 600 and 700

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Dixi Gas Pressure Regulators

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Product Details:

Design pressure PSup to 16 bar
Range of inlet pressure bpu0.5 to 16 bar
Outlet pressure range of Wd6 to 6000 mbar
Accuracy classup to 2,5
Flangingclass 150 RF according to ANSI B 16.5 and PN16 according to ISO 7005.
Minimum working differential pressure100 mbar
Maximum working differential pressure16
Design temperature" minus 10 deg plus 60 deg C (higher or lower temperatures on demand)"
Available size DN1"- 1"1/4 - 1"1/2 - 2"
Closing Pressure Class Sgup to 5
BrandPietro Fiorentini

Dixi is pilot-controlled pressure regulator for medium and low pressure. Dixi is a "fail close" regulator i.e. it will close if :
  • The main diaphragm fails
  • The  pilot diaphragm/s fail
  • There is no feed to the pilot loop.
  • These regulators are suitable for use with previously-filtered, non-corrosive gases.

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Item Code: DIXI

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GR6 Gas Pressure Regulators

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Product Details:

Design Pressureup to 25 bar (362 PSIG)
Accuracy classup to 2,5
Available size DN1" - 2" - 2"1/2 - 3" - 4"
Closing pressure class SGup to 5
Design temperatureminus 10 deg C to plus 60 deg C (plus 14 to plus 140 deg F) (higher or lower temperatures on demand)
Flanging150 RF or RTJ according to ANSI B16.5 and PN 25/40 according to ISO 7005
Maximum working differential pressure19 bar (275,5 Psig)
Minimum working differential pressure450 mbar (7.25 PSIG)
Outlet pressure range of Wd5 mbar to 9500 mbar (2"w.c. to 137.5 psig)
Range of inlet pressure bpu0,5 to 25 bar
BrandPietro Fiorentini
Model NumberAperval

The GR6 Gas Pressure Regulators are two-stage self-driven spring loaded regulators are widely used in both civil and industrial installations using natural gas, LPG and other non-corrosive gases.

They are designed either to be fitted directly  to a gas meter or used in general pipeline work. They can be mounted in any position provided they are protected from the weather.

 

A balanced two-stage regulator results in accurate regulation and high operational reliability with the possibility to use the same equipment to meet what the market currently requires  (low pressure) and  future needs (medium pressure) just changing the setpoint, to satisfy additional gas consumption with the same infrastructure, which means   safety devices must be adequate.
Where the installation is in an enclosed space , the internal relief vent can be piped to outside. Simple to install.

 

These regulators are manufactured according to UNE 60402-2 and approved for the Nof AENOR.

 

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Gas Pressure Regulators

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Product Details:

Accuracy classup to 5
Closing pressure class SGup to 10
Design temperatureT3 (minus 3 deg C plus 60 deg C)
Range of inlet pressure bpubpu 0.15/8.6 Bar - bpu 2.2/124.7 Psi
Outlet pressure range of WdBP 13/180 mbar / TR 180/500 mbar
BrandPietro Fiorentini
Design Pressure8.6 Bar
ModelMod. GR6

Specification:
  • in comparison to the outlet nominal pressure
  • Lock-up pressure SG: +7.5 mbar (3 w.c.) / +30% of the Pd setting value
  • Accuracy class AC: 15% of the Pd setting value
  • Temperature class: 1 (-15°C + 60°C) (5°F to 140°F)

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Item Code: GR6

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Gas Pressure Regulators

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Product Details:

Design Pressure85 bar
Available size DN1 Inch
Design temperatureminus 10 degree C plus 60 degree C
Outlet pressure range of Wd0,85 to 4,5
Range of inlet pressure bpu1,4 to 85 bar
Accuracy Class Acup to 5
Closing Pressure Class Sgup to 10 bar
Model NumberDival 160 AP
BrandPietro Fiorentini

Balanced spring loaded regulator
  • Over pressure shut-off device (OPSO)
  • Under pressure shut-off device (UPSO)
  • With integrated resetting by pass
  • Relief valve.
  • ISize: 1”x1” ISO 7/1; 1”x1”1/2 ISO 7/1 (NPT on demand)
  • Screwed or flanged PN16 & ASME 150

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Item Code: Dival-500

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Gas Pressure Regulators

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Product Details:

Design Pressureup to 18,9 bar
Accuracy Class ACup to 2,5 (according to operating conditions)
Minimum Working Differential Pressure480 mbar (6,96 Psi)
Range of inlet pressure bpu0,5 to 18,9 bar
Outlet pressure range of Wd20 to 9500 mbar
Maximum working differential pressure18,9
Flangingclass 125FF-125RF- 150RF according to ASME B 16.1, and PN16 according to ISO 7005-2
Design temperature" minus 10 deg plus 60 deg C (higher or lower temperatures on demand)
Available size DN2"- 3" -4"
Closing Pressure Class Sgup to 5
Model NumberAperval 101
BrandPietro Fiorentini

The APERVAL 101 is a pilot-controlled regulator for low- and medium-pressure applications. The APERVAL 101 is a fail-to-open regulator.
It will open if:
  • There is no  pilot loop supply
  • The  main pilot diaphragm is damaged
This regulator is suitable for use with previously-filtered, non-corrosive gases.

Its truly "top entry design" allows all  maintenance to be carried out  without taking  the body off  line.


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Norval Gas Pressure Regulators

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Product Details:

Design Pressureup to 19,6 bar
Accuracy Class ACup to 5
Closing Pressure Class SGup to 10%
Available size DN1" (25) - 1"1/2 (40) - 2" (50) - 2"1/2 (65) - 3" (80 ) 4" (100) 6" (150) 8" (200)
Design temperatureminus 20 deg C a plus 60 deg C (higher or lower temperatures on request)
FlangingClass 150 RF according to ANSI B16.5 and PN16 according to ISO 7005
Outlet pressure range of Wd1" to 4" DN from 8 to 4400 mbar; 6" to 8" DN from 12 to 1800 mbar
Range of inlet pressure bpu0,1 - 19,6 bar for DN from 1" to 3" 0,1- 8 bar for DN less than 3
BrandPietro Fiorentini

Norval pressure regulators are direct-acting devices for low and medium pressure applications controlled by a diaphragm and counter spring.

 

These regulators are suitable for use with pre-filtered, non-corrosive gases.

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Item Code: Norval

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Pietro Fiorentini Gas Regulator

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Product Details:

Range of inlet pressure bpu2 to 220 bar
Outlet pressure range of Wd1,5 to 60 bar
Accuracy classup to 5
Closing pressure class SGup to 10
Design temperatureminus 20 deg C to plus 60 deg C
BrandPietro Fiorentini
Design Pressureup to 220 bar
ModelATF-15

Single-stage pressure reducing valve type ATF Anti-Freeze For industrial and chemical engineering applications.

Suitable for natural gas and all non-corrosive gaseous media.

Easy operation and maintenance

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Item Code: ATF-15

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Reflux Fo Gas Pressure Regulators

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Product Details:

Accuracy class ACup to 1%
Closing pressure class SGfrom 5% to 1% depending on outlet pressure
Available size DN1", 2", 3", 4", 6", 8", 10"
Design temperatureminus 10 deg C to plus 60 deg C
Flangingclass 150-300-600 RF or RTJ according to ANSI B16.5 and PN 16 according to ISO 7005
Maximum working differential pressure99 bar
Minimum working differential pressure2 bar when used alone; 0,5 bar when used in combination with a Reflux 819 FC monitor
Outlet pressure range of Wd1 to 74 bar1 to 74 bar
Range of inlet pressure bpu3 to 102 bar
Model NumberReflux 819/FO
BrandPietro Fiorentini

Reflux Fo Gas Pressure Regulators is a downstream pilot-controlled pressure regulator for medium and high pressure applications.
It is particulary suitable for use within the framework of installation for the distribution of natural gas, as well as for supplying network for civil and industrial use.

The Reflux 819/FO regulator is classified according to the European standard EEN 334 as a regulator which reacts in opening (Fail to open).


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Item Code: Reflux-819-FO

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Single Stage High Pressure Spring Loaded Regulator

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Product Details:

Accuracy classup to 5
ModelHP 100
Closing pressure class SGup to 10
Design pressure20 bar
Design temperature2 (minus 20 deg C plus 60 deg C)
Outlet pressure range of WdAP 200/800 mbar / TR 800/4500 mbar
Range of inlet pressure bpu1/20 bar
BrandPietro Fiorentini

Specification:
  • Inlet pressure range bpu: 1÷20 bar (14.5÷290 Psig)
  • Outlet pressure range Wd:
  • AP: 200÷800 mbar ( 80,4" - 321.5" w.c.)
  • TR: 800÷4500 mbar (321.5"- 1808.4" w.c.)
  • Over pressure shut - off setting range:
  • HP 100/B HP100
  • Wd OPSO 300÷7000 mbar (120" - 2813" w.c.)
  • Wd UPSO 100÷3000 mbar (40.1" - 1205.5" w.c.)
  • Temperature class: 2 (-20°C +60°C) - (-4°F +140°F)

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Item Code: HP-100

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Staflux Gas Pressure Regulators

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BrandPietro Firoentini
Range of inlet pressure bpu2 to 85 bar (29 to 841 psi)
Design Pressureup to 102 bar (1479 psi)
Flangingclass ANSI 300-600 RF or RTJ according to ANSI B16.5
Available size DN1 Inch - 2 Inch - 3 Inch
Accuracy Class ACUpto 5
Closing Pressure Class SGUpto 10
Design temperatureminus 20 deg C to plus 60 deg C (minus 4 to plus 140 deg F)
Ambient temperatureminus 20 deg C to plus 60 deg C (minus 4 to plus 140 deg F)
Range of outlet pressure Wh1 to 75 bar (14,5 to 1087 psig)
Model NumberStaflux 185

The STAFLUX 185 pressure regulators are direct-action devices for medium and high pressure, controlled by a diaphragm and contrasting regulated counter pressure action.

These regulators are suitable for use with pre-filtered, non-corrosive gases.


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Item Code: Staflux-185

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Staflux Gas Pressure Regulators

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Product Details:

Design Pressureup to 250 bar
Accuracy Class ACup to 5
Closing Pressure Class SGup to 10
Available size DN1 "
Flangingclass 1500 RF according to ANSI B16.5.
Outlet pressure range of Wd1 /75 bar
Range of inlet pressure bpu2 to 250 bar
Model NumberStaflux 187
BrandPietro Fiorentini

STAFLUX 187 pressure regulators are direct-acting devices for high pressure, controlled by a diaphragm and contrasting regulated counter pressure action.

These regulators are suitable for use with pre-filtered, non-corrosive gases


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Item Code: Staflux-187

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Tries Gas Pressure Regulators

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Design Pressureup to 19,2 bar
Accuracy Class ACup to 5
Closing Pressure Class SGup to 10
Available size DN1"1/ 2 - 2"
Design temperatureminus 20 degree C to plus 60 degree C
Flangingclass 150 RF according to ANSI B16.5 and PN16 according to ISO 7005.
Outlet pressure range of Wd15/ 4000 mbar
Range of inlet pressure bpu0,2 - 8 bar on BM version 0,2 - 18 on BB version
BrandPietro Fiorentini

Tries Gas Pressure Regulators are direct-acting devices for low and medium pressure, controlled by a diaphragm and counter spring. These regulators are suitable for use with pre-filtered, non-corrosive gases.

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Zero Governors Gas Pressure Regulators

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Product Details:

Design Pressure1 bar
Accuracy Class AC15
Available size DNDB 65-80-100
Design temperature2 (minus 10 deg C plus 60 deg C)
Inlet pressure0,5 bar
Outlet pressure range of Wd0.5 - 150 mbar
Threaded connections1/2 Inch- 3/4 Inch- 1 Inch - 1 Inch 1/4 - 1 Inch1/2 - 2 Inch
BrandPietro Fiorentini

Pietro Fiorentini’s ZERO Governor F3Z series, are designed to comply with the EN 88/1 standard.

The F3Z family of regulators are ideal for all burner installations, nozzle mixers, mixing tees, and proportional premixers. Their function is to regulate the pressure and to keep air/gas ratio constant.
The materials and soft parts used in the construction of the ZERO Governor regulators make them suitable for use with natural gas, LPG, city gas and all other non corrosive gases. All the F3Z regulators are equipped with balanced device design for high outlet pressure accuracy regardless of any inlet pressure variation. The double diaphragm provides added security in case of primary diaphragm failure.


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Terval Gas Pressure Regulators

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Product Details:

Design Pressureup to 25 bar
Accuracy Class ACup to 2.5
Closing Pressure Class SGup to 5
Design temperatureminus 10 plus 60 degree C lower or higher temperature available on demand
FlangingANSI 150 RF or RTJ according to ANSI B16.5 and PN16/25/40 according to ISO 7005
Maximum working differential pressure19
Minimum working differential pressure0.45 bar
Outlet pressure range of Wd5 mbar to 9500 mbar
Range of inlet pressure bpu0.5 to 16 bar
Available size DN2"- 2"1/2 - 3" - 4"
BrandPietro Fiorentini
Model NumberTerval/A

Staflux Gas Pressure Regulators

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Item Code: Terval-A

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