ISTEC Corporation, your Flow Measurement and Control Specialist
 

ISTEC CORPORATION
Flow Measurement & Control
5 Park Lake Road, Unit 6
Sparta, NJ 07871 USA
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Fax 973-383-9088
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Pietro Fiorentini’s Governor Line Pressure Regulators

 Fiorentini’s Governor Line Pressure RegulatorsPietro Fiorentini's Governor line of gas regulators are designed to comply with the latest CSA and international. The Governor family of regulators are ideal for a wide range of residential through large industrial applications. The materials and soft parts used in the construction of the Governor regulators make them suitable for use with natural gas, LPG, Propane air and other non-corrosive gases.

All Governor regulators are equipped with balanced valve design for improved high outlet pressure accuracy regardless of Inlet pressure variation. The double diaphragm with integral vent limiter provides added security. The external vent limiter reduces piping costs and the need for costly vent piping for indoor installations and complies with CSA guidelines.* The number of high capacities and regulator options sometimes eliminates the need for separate units and significantly reduces installation costs.

Safe, Reliable and High-Performance

  • Internal vent limiter: non removable, for indoor and outdoor installations.
  • External vent limiter option for indoor installations.*
  • Double diaphragm for added safety and greater reliability of service.
  • Balanced valve design gives you for increase capacity, high 500 to 1 turn-down and stable regulation from low to high flow.
  • Complete lockup in absence of gas flow, bubble tight shutoff.

*As Approved by Local Codes and Standards

Standard Model

  • CSA 6.22a-2005 ANSI Z21.80A2005 Class I for outlet pressures up to 14" W.C. certified
  • Integral Vent Limiter
  • External Vent Limiter — no vent line required*
  • Positive dead-end lockup
  • Inlet and Outlet test ports
  • 500 to 1 Turn-down
  • Minimum Δ P – 1" W.C.

*As Approved by Local Codes and Standards

 Fiorentini’s Governor Standard Model Line Pressure Regulator
  • Suitable for use with Natural Gas, LPG, and other non-corrosive clean gas
  • Inlet Pressure: 7" W.C. to 5 PSIG
  • Max. Inlet 7.25 PSIG for non-CSA applications
  • Temperature range: -40°F to 150°F
  • Connections: 1/2" thru 2"
  • Maximum Emergency Inlet Exposure Pressure: 80 PSIG
  • Suitable for Indoor or Outdoor Installation

*As Approved by Local Codes and Standards

 Fiorentini’s Governor Standard Outlet Spring Range Cutaway Standard Outlet Spring Range
  • Green 2" W.C. to 5.1" W.C.
  • Red 2.75" W.C. to 7.87" W.C.*
  • White 4" W.C. to 11.8" W.C.*
  • Black 6" W.C. to 14" W.C.*
  • Yellow 9.8" W.C. to 27.5" W.C.
  • Violet 23.6" W.C. to 59" W.C. or 0.85 to 2.13 PSIG
  • Orange 55" W.C. to 118" W.C. or 2 to 4.26 PSIG

*Spring is CSA Outlet Pressure Certified

Capacity in CFH for .60 Specific Gravity Gas
Model – Size
Outlet Pressure Set Point
Operating Inlet Pressure
 
14" W.C.
1 PSIG
2 PSIG
30051 – 1/2"
8" W.C.
386
635
928
11" W.C.
297
628
928
30052 – 3/4"
8" W.C.
386
848
1,155
11" W.C.
297
778
1,155
30053 – 1"
8" W.C.
386
1,059
1,501
11" W.C.
297
974
1,501
30150 – 1/2"
High Capacity
8" W.C.
891
1,695
2,205
11" W.C.
656
1,471
2,205
30151 – 3/4"
High Capacity
8" W.C.
1,125
2,084
2,785
11" W.C.
829
1,858
2,785
30152 – 1"
High Capacity
8" W.C.
1.337
2,437
3,308
11" W.C.
985
2,206
3,308
30153 – 1-1/4"
8" W.C.
3,189
5,297
7,891
11" W.C.
2,349
5,264
7,891
30154 – 1-1/2"
8" W.C.
3,330
5,650
8,240
11" W.C.
2,453
5,496
8,240
30155 – 2"
8" W.C.
6,097
10,947
15,087
11" W.C.
4,491
10,064
15,087
30157/F – 3"
8" W.C.
9,676
16,810
23,202
11" W.C.
7,451
15,715
23,202
30158/F – 4"
8" W.C.
16,951
29,452
40,612
11" W.C.
13,066
27,545
40,612

Recommended for no more than 80% slated capacity, for optimal performance.

Governor Standard Model Dimensional Drawing (cutaway)

Dimensions in inches
Model No.
Size
A
B
C
D
E
F
Weight (lbs)
30051
1/2" NPT
4.12
4.45 w/filter
N/A
1/2
N/A
5.59
N/A
1.54
30052
3/4" NPT
4
4.29 w/filter
N/A
3/4
N/A
5.59
N/A
1.54
30053
1" NPT
4
4.29 w/filter
N/A
1
N/A
5.59
N/A
1.54
30150
1/2" NPT
5.43
N/A
1/2
N/A
6.89
N/A
2.75
30151
3/4" NPT
5.28
N/A
3/4
N/A
6.89
N/A
2.75
30152
1" NPT
5.28
N/A
1
N/A
6.89
N/A
2.75
30153
1-1/4" NPT
7.64
N/A
1-1/4
N/A
10
N/A
7.5
30154
1-1/2" NPT
7.64
N/A
1-1/2
N/A
10
N/A
7.5
30155
2" NPT
9.29
N/A
2
N/A
12.44
13.74
12.34
30157/F
3" Flanged
N/A
16.9
3
ANSI 150
N/A
17.09
27.56
30158/F
4" Flanged
N/A
16.9
4
ANSI 150
N/A
19.76
27.56

 

Over-Pressure Device (OPD) Model

  • CSA Certified to ANSI Z21.80A2005
  • CSA Certified 6.22a-2005 Class I for outlet pressure up to 14"W.C. and inlet pressures up to 5 PSIG
  • CSA Certified 6.22a-2005 Class II for outlet pressures up to 1 PSIG and inlet pressures up to 5 PSIG
  • Integral Vent Limiter
  • External Vent Limiter – no vent line required*
  • Positive dead-end lockup
  • Inlet and Outlet test ports
  • 500 to 1 Turn-down

*As Approved by Local Codes and Standards

 Governor Over-Pressure Device Model
  • Suitable for use with Natural Gas, LPG, and other non-corrosive clean gas
  • Inlet Pressure: 7" W.C. to 5 PSIG
  • Max. Inlet 7.25 PSIG for non-CSA applications
  • Temperature range: -40°F to 150°F
  • Connections: ½" thru 2"
  • Maximum Emergency Inlet Exposure Pressure: 80 PSIG
  • Suitable for Indoor or Outdoor Installation

*As Approved by Local Codes and Standards

OPD Outlet Spring Range

  • Green 2" W.C. to 5.1" W.C.*
  • Red 2.75" W.C. to 7.87" W.C.*
  • White 4" W.C. to 11.8" W.C.*
  • Black 6" W.C. to 14" W.C.*
  • Violet 23.6" W.C. to 59" W.C. or 0.85 to 2.13 PSIG
  • Yellow 9.8" W.C. to 27.5" W.C.*
  • Orange 55" W.C. to 118" W.C. or 2 to 4.26 PSIG

*Spring is CSA Outlet Pressure Certified

 Fiorentini’s Governor Over-Pressure Device Spring Range Cutaway

Governor with Over-Pressure Device (OPD) Capacity in CFH for .60 Specific Gravity
Model – Size
Outlet Pressure Set Point
Operating Inlet Pressure
 
1 PSIG
2 PSIG
5 PSIG
30051DC – 1/2"
8" W.C.
635
928
928
11" W.C.
628
928
928
14" W.C.
558
928
928
30052DC – 3/4"
8" W.C.
848
1,115
1,115
11" W.C.
778
1,115
1,115
14" W.C.
698
1,115
1,115
30053DC – 1"
8" W.C.
1,059
1,501
1,501
11" W.C.
974
1,501
1,501
14" W.C.
906
1,501
1,501
30150DC – 1/2"
High Capacity
8" W.C.
1,695
2,205
2,205
11" W.C.
1,471
2,205
2,205
14" W.C.
1,325
2,205
2,205
30151DC – 3/4"
High Capacity
8" W.C.
2,084
2,785
2,785
11" W.C.
1,858
2,785
2,785
14" W.C.
1,674
2,785
2,785
30152DC – 1"
High Capacity
8" W.C.
2,437
3,308
3,308
11" W.C.
2,206
3,308
3,308
14" W.C.
1,988
3,308
3,308
30153DC – 1-1/4"
8" W.C.
5,297
7,891
7,891
11" W.C.
5,264
7,891
7,891
14" W.C.
4,743
7,891
7,891
30154DC – 1-1/2"
8" W.C.
5,650
8,240
8,240
11" W.C.
5,496
8,240
8,240
14" W.C.
4,952
8,240
8,240
30155DC – 2"
8" W.C.
10,947
15,087
15,087
11" W.C.
10,064
15,087
15,087
14" W.C.
9,068
15,087
15,087
30157DC – 3"
8" W.C.
16,810
23,202
23,202
11" W.C.
15,715
23,202
23,202
14" W.C.
13,768
23,202
23,202
30158DC – 4"
8" W.C.
29,452
40,612
40,612
11" W.C.
27,545
40,612
40,612
14" W.C.
24,094
40,612
40,612

Governor Over-Pressure Device (OPD) Model Dimensional Drawing

Dimensions in inches
Model No.
Size
A
B
C
D
E
F
Weight (lbs)
30051
1/2" NPT
8.86
N/A
1/2
N/A
5.59
N/A
3.25
30052
3/4" NPT
8.86er
N/A
3/4
N/A
5.59
N/A
3.25
30053
1" NPT
8.86
N/A
1
N/A
5.59
N/A
3.25
30150
1/2" NPT
11.22
N/A
1/2
N/A
6.89
N/A
5.75
30151
3/4" NPT
11.22
N/A
3/4
N/A
6.89
N/A
5.75
30152
1" NPT
11.22
N/A
1
N/A
6.89
N/A
5.75
30153
1-1/4" NPT
16.61
N/A
1-1/4
N/A
10
N/A
15.5
30154
1-1/2" NPT
16.61
N/A
1-1/2
N/A
10
N/A
15.5
30155
2" NPT
19.88
N/A
2
N/A
12.44
13.74
25
30157/F
3" Flanged
N/A
33.93
3
ANSI 150
N/A
17.09
56
30158/F
4" Flanged
N/A
33.93
4
ANSI 150
N/A
19.76
56

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