Post on 22-Mar-2016
description
transcript
serving the gas industry worldwide
technical description
serviCe governor Modules
Bryan donKin rMg gas Controls liMited
serviCe governor Modules
1
Bryan Donkin RMG, have successfully engineered Gas Pressure Reducing and Metering Stations for over 40 years embodying the extensive range of gas control equipment manufactured by the Company and RMG Group of Companies.
Skid mounted, pre-packaged units are designed and built to meet individual customer requirements and specifications. Units range from Domestic Meter Boxes to High Pressure Class 600 stations.
Units have been supplied worldwide to a range of industries including Gas, Steel, Process and Chemical etc. All designs take account of modern practices in the control of gases and incorporate safety features to provide a unit of high integrity. Factory built units are pre-tested giving a high level of Quality Assurance, whilst simplifying on-site installation/commissioning and providing considerable savings in manpower.
service governor Modules:
The Service Governor Modules (SGM) contained in this publication are a space saving range of standard designs for use on District, Industrial and Commercial services for pressures up to 7 barg, providing the flexibility to meet the requirements of IGE/TD13 and T/SP/E34.
Features:
• Inlet & Outlet Isolating Valves • Regulator • Safety Cut-Off Valve • Creep Relief Valve • Above & Below Ground Options
Benefits:
• Pre-Packaged Ready to Install. • Minimum Labour • Easy to Handle • Pre-Tested
introduction
teChniCal detailsSGM 5S to 8S
Orseal Ball Valves or equivalent
Series 127 Top Hat Filter 50/200 micron
Series 240LR - 309LP OPCO
Integral on regulator
Integral on regulator
n/a
BS1387 (heavy wall)
n/a
n/a
Screwed to BS21
BS 1256 or BS143
BS 3605 18 SWG or ASTM-A-269
BD-RMG MI2953 & top coat to BS4800-10-E53 (Canary Yellow)
Reinforced fibre-glass
Reinforced fibre-glass/Mild steel pit cover
Description
Isolating Valves
Filters
Regulators
Slamshut Valves
Creep Relief Valve
Stream Discrimination
Screwed Pipework
Fabrications
Jointing
Connections
Screwed Fittings
Impulse Pipe
Painting
Kiosk
Pit Housing
SGM 9S to 29F
Screwed: Orseal Ball Valves or Equiv. Flanged: Bryan Donkin Fig 555 wedge gate.
Bryan Donkin Fig 50 Ball Valve
Series 124 Angle Type - 50/200 micron
Series 270MK2-R-309LP OPCO
Integral on regulator
Integral on regulator
Series 580 ‘Waferchek’ - (28/29 FB1) Series 590 ‘Rollchek’ - (26S)
BS1387 (heavy wall)
BD-RMG Specifications: PS 6361
BS 4865 - asbestos free
Flanged to BS EN 1092 (PN16)
BS 1256 or BS143
BS 3605 18 SWG or ASTM-A-269
BD-RMG MI2953 & top coat to BS4800-10-E53 (Canary Yellow)
Reinforced fibre-glass
Reinforced fibre-glass/Mild steel pit cover
serviCe governor Modules
256789
1011121314151617181920212223
3\4” SC3\4” SC32mm PE32mm PE3\4” SC32mm PE2” SC2” SC63mm PE63mm PE63mm PE2” SC63mm PEDN50DN50DN502” SCDN50DN50/DN80
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SGM 5SSGM 5SBSGM 6SSGM 6SBSGM 7SSGM 8SSGM 9SSGM 9SBSGM 10SSGM 10SBSGM 10 S-T-PE*SGM 11SSGM 13 S-T-PE*SGM 15FBSGM 16FSGM 17FSGM 26SSGM 28 FB-1SGM 29 FB-1
inlet Pressure: up to 2 barg
inlet Pressure: up to 7 barg
Single Stream
Twin StreamConnection
Size/Type
Installation
Model Page NumberAbove
GroundBelow
GroundStd.With
by-pass Std. S.D.
aCtive/slaM
* Optional Single Stream version available on request, (SGM 10 S-S-PE and SGM 13 S-S-PE)
2526272829
DN20 / 3/4” scDN20 / 32mmDN25 / 2” scDN25 / 63mmDN50
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
SGM 5SFB-7BSGM 6SFB-7BSGM 9SFB-7BSGM 10SFB-7BSGM 15SFB-7B
Single StreamConnection
Size/Type
Installation
ModelPage
NumberAbove Ground
Below GroundStd.
With by-pass
ACTIVE/SLAM
Key: Std.= Standard Unit, S.D. = Stream Discrimination Valves
Options: • Space saving Kiosk for above ground installations (page 30) • Vent Stack Type ‘VS3’ for SGM 10S-T-PE & SGM 13S-T-PE (page 31)
Quick selection guide
serviCe governor Modules
3
inlet Pressure: up to 2 barg
S/SS/ST/S
666
121212
999
141414
202020
232323
Inlet Pressure in Barg/Capacity in smch (SG 0.6)TypeModel1.0 2.00.14 0.21 0.35 0.7
OUTLET PRESSURE : 30 mbarg
inlet Pressure: up to 7 barg
S/SS/S
1616
1818
1919
2121
2222
2323
SGM 5SFB-7BSGM 6SFB-7B
Inlet Pressure in Barg/Capacity in smch (SG 0.6)TypeModel
6.0 7.02.0 2.7 3.5 5.0
OUTLET PRESSURE : 30 mbarg
S/SS/SS/S
858585
105105105
125125125
160160160
175175175
190190190
SGM 9SFB-7BSGM 10SFB-7BSGM 15SFB-7B
Inlet Pressure in Barg/Capacity in smch (SG 0.6)TypeModel
6.0 7.02.0 2.7 3.5 5.0
OUTLET PRESSURE : 50 mbarg
S/SS/ST/ST/ST/SS/SS/ST/ST/ST/ST/S
100100100100100100100100100100100
150150150150150150150150150150150
201201201201201201201201201201201
290 iv290 iv290 iv290 iv290 iv290 iv290 iv290 iv290 iv290 iv290 iv
290 ov290 ov290 ov290 ov290 ov290 ov290 ov290 ov290 ov290 ov290 iv
SGM 9S & 9SBSGM 10S & 10SBSGM 10S-T-PESGM 11SSGM 13S-T-PESGM 15FBSGM 16FSGM 17FSGM 26SSGM 28FB1SGM 29FB1
Inlet Pressure in Barg/Capacity in smch (SG 0.6)TypeModel
1.0 2.00.14 0.21 0.35 0.7
OUTLET PRESSURE : 50 mbarg
250 iv250 iv250 iv250 iv250 iv250 iv250 iv250 iv250 iv250 iv250 iv
* Can be used with both streams working, ie capacity x2
Key: iv/ov = Inlet/Outlet pipework velocity restrictions (20 m/sec inlet/40 m/sec Outlet)
Capacity selection guide
SGM 5 & 5SBSGM 6S & 6SBSGM 7S* & 8S
serviCe governor Modules
4
INLET PRESSURES:
Up to 2 barg
serviCe governor Modules
5
sgM 5s
PERFORMANCE:
00.0 0.5 1.0 1.5 2.0
5
10
15
20
25SET POINT: 30 MBARG
CAPA
CITY
IN S
MCH
(SG
0.6)
INLET PRESSURE (BARG)
Type
Installation
Connections
Housing
Weights
Active / Slam Single Stream
Above Ground
INLET - 3/4" Screwed OUTLET - 3/4" Screwed
Kiosk No. 1
Module 7KG Kiosk & Base 7KG
TECHNICAL DETAILS:
serviCe governor Modules
6
Type
Installation
Connections
Housing
Weights
Active / Slam Single Stream With By-Pass
Above Ground
INLET - ¾" Screwed OUTLET - ¾" Screwed
Kiosk No. 1
Module 7KG Kiosk & Base 7KG
TECHNICAL DETAILS: PERFORMANCE:
00.0 0.5 1.0 1.5 2.0
5
10
15
20
25SET POINT: 30 MBARG
CAPA
CITY
IN S
MCH
(SG
0.6)
INLET PRESSURE (BARG)
sgM 5sB
serviCe governor Modules
7
sgM 6s-Pe
Type
Installation
Connections
Housing
Weights
Options
Active / Slam Single Stream
Below Ground
INLET - 32mm O/D PE OUTLET - 32mm O/D PE
Pit No. 1 & Cover
Module 9KG Pit & Cover 19KG
Vent Stack VS3
TECHNICAL DETAILS: PERFORMANCE:
00.0 0.5 1.0 1.5 2.0
5
10
15
20
25SET POINT: 30 MBARG
CAPA
CITY
IN S
MCH
(SG
0.6)
INLET PRESSURE (BARG)
serviCe governor Modules
8
Type
Installation
Connections
Housing
Weights
Options
Active / Slam Single Stream With By-Pass
Below Ground
INLET - 32mm O/D PE OUTLET - 32mm O/D PE
Pit No. 1 & Cover
Module 10KG Pit & Cover 19KG
Vent Stack VS3
TECHNICAL DETAILS: PERFORMANCE:
00.0 0.5 1.0 1.5 2.0
5
10
15
20
25SET POINT: 30 MBARG
CAPA
CITY
IN S
MCH
(SG
0.6)
INLET PRESSURE (BARG)
sgM 6sB-Pe
serviCe governor Modules
9
sgM 7s
Type
Installation
Connections
Housing
Weights
Active / Slam Twin Stream
Above Ground
INLET - ¾" Screwed OUTLET - ¾" Screwed
Kiosk No. 1
Module 15KG Kiosk & Base 7KG
TECHNICAL DETAILS: PERFORMANCE:
00.0 0.5 1.0 1.5 2.0
5
10
15
20
25SET POINT: 30 MBARG
CAPA
CITY
IN S
MCH
(SG
0.6)
INLET PRESSURE (BARG)
serviCe governor Modules
10
TECHNICAL DETAILS: PERFORMANCE:
00.0 0.5 1.0 1.5 2.0
5
10
15
20
25SET POINT: 30 MBARG
CAPA
CITY
IN S
MCH
(SG
0.6)
INLET PRESSURE (BARG)
sgM 8s-Pe
Type
Installation
Connections
Housing
Weights
Options
Active / Slam Twin Stream
Below Ground
INLET - 32mm O/D PE OUTLET - 32mm O/D PE
Pit No. 1 & Cover
Module 21KG Pit & Cover 19KG
Vent Stack VS3
serviCe governor Modules
11
sgM 9s
Type
Installation
Connections
Housing
Weights
Active / Slam Single Stream
Above Ground
INLET - 2" Screwed OUTLET - 2" Screwed
Kiosk No. 2
Module 35KG Kiosk & Base 27KG
TECHNICAL DETAILS: PERFORMANCE:
0
50
100
150
200
250
300
350
400
450
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
500SET POINT: 50 MBARG
CAPA
CITY
IN S
MCH
(SG
0.6)
INLET PRESSURE (BARG) Capacities per Stream
REGULATORCAPACITY
OUTLETVELOCITY LIMIT
INLET VELOCITYLIMIT
ACTIVE / SLAM CAPACITIES
serviCe governor Modules
12
Type
Installation
Connections
Housing
Weights
Options
Active / Slam Single Stream With By-Pass
Above Ground
INLET - 2" Screwed OUTLET - 2" Screwed
Kiosk No. 2
Module 43KG Kiosk & Base 27KG
With Supports
TECHNICAL DETAILS: PERFORMANCE:
0
50
100
150
200
250
300
350
400
450
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
500SET POINT: 50 MBARG
CAPA
CITY
IN S
MCH
(SG
0.6)
INLET PRESSURE (BARG) Capacities per Stream
REGULATORCAPACITY
OUTLETVELOCITY LIMIT
INLET VELOCITYLIMIT
ACTIVE / SLAM CAPACITIES
sgM 9sB
serviCe governor Modules
13
Type
Installation
Connections
Housing
Weights
Options
Active / Slam Single Stream
Below Ground
INLET - 63mm O/D PE OUTLET - 63mm O/D PE
Pit No. 2 & Cover
Module 37KG Pit & Cover 44KG
Vent Stack VS3
TECHNICAL DETAILS: PERFORMANCE:
0
50
100
150
200
250
300
350
400
450
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
500SET POINT: 50 MBARG
CAPA
CITY
IN S
MCH
(SG
0.6)
INLET PRESSURE (BARG) Capacities per Stream
REGULATORCAPACITY
OUTLETVELOCITY LIMIT
INLET VELOCITYLIMIT
ACTIVE / SLAM CAPACITIES
sgM 10s-Pe
serviCe governor Modules
14
Active / Slam Single Stream With By-Pass
Below Ground
INLET - 63mm O/D PE OUTLET - 63mm O/D PE
Pit No. 2 & Cover
Module 45KG Pit & Cover 44KG
Vent Stack VS3
TECHNICAL DETAILS: PERFORMANCE:
0
50
100
150
200
250
300
350
400
450
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
500SET POINT: 50 MBARG
CAPA
CITY
IN S
MCH
(SG
0.6)
INLET PRESSURE (BARG) Capacities per Stream
REGULATORCAPACITY
OUTLETVELOCITY LIMIT
INLET VELOCITYLIMIT
ACTIVE / SLAM CAPACITIES
sgM 10sB
Type
Installation
Connections
Housing
Weights
Options
serviCe governor Modules
15
Active / Slam Twin Stream* W/O Stream Selection
Below Ground
INLET - 63mm O/D PE OUTLET - 63mm O/D PE
Pit No. 2 (x2) & Cover
Module 90KG Pit & Cover 88KG
Vent Stack VS3
TECHNICAL DETAILS: PERFORMANCE:
0
50
100
150
200
250
300
350
400
450
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
500SET POINT: 50 MBARG
CAPA
CITY
IN S
MCH
(SG
0.6)
INLET PRESSURE (BARG) Capacities per Stream
REGULATORCAPACITY
OUTLETVELOCITY LIMIT
INLET VELOCITYLIMIT
ACTIVE / SLAM CAPACITIES
Type
Installation
Connections
Housing
Weights
Options
sgM 10s-t-Pe
* 2 x Single streams, excluding inlet & outlet manifolds
Overall Pit Depth 675mm (including Pit Lid)
serviCe governor Modules
16
Active / Slam Twin Stream
Above Ground
INLET - 2" Screwed OUTLET - 2" Screwed
Kiosk No.3A
Module 64KG Kiosk & Base 40KG
With Supports
TECHNICAL DETAILS: PERFORMANCE:
0
50
100
150
200
250
300
350
400
450
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
500SET POINT: 50 MBARG
CAPA
CITY
IN S
MCH
(SG
0.6)
INLET PRESSURE (BARG) Capacities per Stream
REGULATORCAPACITY
OUTLETVELOCITY LIMIT
INLET VELOCITYLIMIT
ACTIVE / SLAM CAPACITIES
sgM 11s
Type
Installation
Connections
Housing
Weights
Options
serviCe governor Modules
17
* 2 x Single streams, excluding inlet & outlet manifolds
Overall Pit Depth 675mm (including Pit Lid)
Active / Slam Twin Stream* With Stream Discrimination
Below Ground
INLET - 63mm O/D PE OUTLET - 63mm O/D PE
Pit No. 2 (x2) & Covers
Module 110KG Pit & Cover 88KG
Vent Stack VS3
TECHNICAL DETAILS: PERFORMANCE:
0
50
100
150
200
250
300
350
400
450
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
500SET POINT: 50 MBARG
CAPA
CITY
IN S
MCH
(SG
0.6)
INLET PRESSURE (BARG) Capacities per Stream
REGULATORCAPACITY
OUTLETVELOCITY LIMIT
INLET VELOCITYLIMIT
ACTIVE / SLAM CAPACITIES
Type
Installation
Connections
Housing
Weights
Options
sgM 13s-t-Pe
serviCe governor Modules
18
PERFORMANCE:
0
50
100
150
200
250
300
350
400
450
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
500SET POINT: 50 MBARG
CAPA
CITY
IN S
MCH
(SG
0.6)
INLET PRESSURE (BARG) Capacities per Stream
REGULATORCAPACITY
OUTLETVELOCITY LIMIT
INLET VELOCITYLIMIT
ACTIVE / SLAM CAPACITIES
sgM 15FB
Active / Slam Single Stream With By-Pass
Above Ground
INLET - DN50 OUTLET - DN50
Kiosk No.3A
Module 70KG Kiosk & Base 40KG
TECHNICAL DETAILS:
Type
Installation
Connections
Housing
Weights
serviCe governor Modules
19
Active / Slam Single Stream
Below Ground
INLET - DN50 OUTLET - DN50
Pit No. 2 & Cover
Module 60KG Pit & Cover 44KG
Vent Stack VS3
TECHNICAL DETAILS: PERFORMANCE:
0
50
100
150
200
250
300
350
400
450
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
500SET POINT: 50 MBARG
CAPA
CITY
IN S
MCH
(SG
0.6)
INLET PRESSURE (BARG) Capacities per Stream
REGULATORCAPACITY
OUTLETVELOCITY LIMIT
INLET VELOCITYLIMIT
ACTIVE / SLAM CAPACITIES
Type
Installation
Connections
Housing
Weights
Options
sgM 16F
Overall Pit Depth 675mm (including Pit Lid)
serviCe governor Modules
20
Active / Slam Single Stream
Above Ground
INLET - DN50 OUTLET - DN50
Kiosk No.3A
Module 130KG Kiosk & Base 40KG
TECHNICAL DETAILS: PERFORMANCE:
0
50
100
150
200
250
300
350
400
450
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
500SET POINT: 50 MBARG
CAPA
CITY
IN S
MCH
(SG
0.6)
INLET PRESSURE (BARG) Capacities per Stream
REGULATORCAPACITY
OUTLETVELOCITY LIMIT
INLET VELOCITYLIMIT
ACTIVE / SLAM CAPACITIES
sgM 17F
Type
Installation
Connections
Housing
Weights
This unit is supplied with supports as standard
serviCe governor Modules
21
PERFORMANCE:
0
50
100
150
200
250
300
350
400
450
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
500SET POINT: 50 MBARG
CAPA
CITY
IN S
MCH
(SG
0.6)
INLET PRESSURE (BARG) Capacities per Stream
REGULATORCAPACITY
OUTLETVELOCITY LIMIT
INLET VELOCITYLIMIT
ACTIVE / SLAM CAPACITIES
sgM 26s
This unit is supplied with supports as standard
Active / Slam Twin Stream With Stream Discrimination
Above Ground
INLET - 2" Screwed OUTLET - 2" Screwed
Kiosk No. 4A
Module 91KG Kiosk & Base 160KG
TECHNICAL DETAILS:
Type
Installation
Connections
Housing
Weights
serviCe governor Modules
22
TECHNICAL DETAILS: PERFORMANCE:
0
50
100
150
200
250
300
350
400
450
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
500SET POINT: 50 MBARG
CAPA
CITY
IN S
MCH
(SG
0.6)
INLET PRESSURE (BARG) Capacities per Stream
REGULATORCAPACITY
OUTLETVELOCITY LIMIT
INLET VELOCITYLIMIT
ACTIVE / SLAM CAPACITIES
sgM 28FB-1
Type
Installation
Connections
Housing
Weights
This unit is supplied with supports as standard
Active / Slam Twin Stream With Stream Discrimination
Above Ground
INLET - DN50 OUTLET - DN50
Kiosk No. 4A
Module 176KG Kiosk & Base 160KG
serviCe governor Modules
23
Active / Slam Twin Stream With Stream Discrimination
Above Ground
INLET - DN50 OUTLET - DN80
Kiosk No. 4A
Module 225KG Kiosk & Base 160KG
TECHNICAL DETAILS: PERFORMANCE:
Type
Installation
Connections
Housing
Weights
sgM 29FB-1
This unit is supplied with supports as standard
0
50
100
150
200
250
300
350
400
450
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
500SET POINT: 50 MBARG
CAPA
CITY
IN S
MCH
(SG
0.6)
INLET PRESSURE (BARG) Capacities per Stream
REGULATORCAPACITY
INLET VELOCITYLIMIT
ACTIVE / SLAM CAPACITIES
SGM 29FB 1 & 2
serviCe governor Modules
24
INLET PRESSURES:
Up to 7 barg
serviCe governor Modules
25
Active / Slam Single Stream With By-Pass
Above Ground
INLET - DN20 OUTLET - ¾" Screwed
Kiosk No. 2
Module 13KG Kiosk & Base 27KG
TECHNICAL DETAILS: PERFORMANCE:
Type
Installation
Connections
Housing
Weights
sgM 5sFB-7B
00.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0
5
10
15
20
25SET POINT: 30 MBARG
CAPA
CITY
IN S
MCH
(SG
0.6)
INLET PRESSURE (BARG)
REGULATORCAPACITY
ACTIVE / SLAM CAPACITIES
serviCe governor Modules
26
Active / Slam Single Stream With By-Pass
Below Ground
INLET - DN20 OUTLET - 32mm O/D PE
Pit No. 2 & Cover
Module 15KG Pit & Cover 44KG
Type VS3 Vent Stack
TECHNICAL DETAILS: PERFORMANCE:
Type
Installation
Connections
Housing
Weights
Options
00.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0
5
10
15
20
25SET POINT: 30 MBARG
CAPA
CITY
IN S
MCH
(SG
0.6)
INLET PRESSURE (BARG)
REGULATORCAPACITY
ACTIVE / SLAM CAPACITIES
sgM 6sFB-7B
serviCe governor Modules
27
Active / Slam Single Stream With By-Pass
Above Ground
INLET - DN25 OUTLET - 2" Screwed
Kiosk No. 2
Module 43KG Kiosk & Base 27KG
TECHNICAL DETAILS: PERFORMANCE:
Type
Installation
Connections
Housing
Weights
sgM 9sFB-7B
00.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0
20
40
60
80
100
120
140
160
180
200SET POINT: 50 MBARG
CAPA
CITY
IN S
MCH
(SG
0.6)
INLET PRESSURE (BARG)
REGULATORCAPACITY
ACTIVE / SLAM CAPACITIES
serviCe governor Modules
28
Active / Slam Single Stream With By-Pass
Below Ground
INLET - DN25 OUTLET - 63mm O/D PE
Pit No. 2 & Cover
Module 55KG Pit & Cover 44KG
Vent Stack VS3
TECHNICAL DETAILS: PERFORMANCE:
Type
Installation
Connections
Housing
Weights
Options
00.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0
20
40
60
80
100
120
140
160
180
200SET POINT: 50 MBARG
CAPA
CITY
IN S
MCH
(SG
0.6)
INLET PRESSURE (BARG)
REGULATORCAPACITY
ACTIVE / SLAM CAPACITIES
sgM 10sFB-7B
serviCe governor Modules
29
Active / Slam Single Stream With By-Pass
Above Ground
INLET - DN50 OUTLET - DN50
Kiosk No. 3A
Module 70KG Kiosk & Base 40KG
TECHNICAL DETAILS: PERFORMANCE:
Type
Installation
Connections
Housing
Weights
00.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0
20
40
60
80
100
120
140
160
180
200SET POINT: 50 MBARG
CAPA
CITY
IN S
MCH
(SG
0.6)
INLET PRESSURE (BARG)
REGULATORCAPACITY
ACTIVE / SLAM CAPACITIES
sgM 15FB-7B
serviCe governor Modules
30
All Dimensions in mm
Kiosks & Bases
Kiosk12
3A4A
A440794944
1310
B320548788
1060
C375710862
1216
D258470712966
E625808
10081025
F550758908965
G330650820
1150
H200425670900
J2588
25
K310674824
1110
L190428668860
KIOSKS & BASES
No. 1
No. 2
No. 3A
No. 4A
1 Vent Hole
2 Vent Holes
4 Vent Holes
8 Vent Holes
VENTS
No.s 1, 2 & 3A
No. 4A
1 Lock Set
2 Lock Sets
LOCKS
serviCe governor Modules
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application
• The VS3 vent stack is designed to carry relief valve outlet pipes and other breather pipes from underground pressure reduction installations to a high above ground location.
• The underground installation may be a buried module or a pit mounted module.
• The installed height of the stack is approximately 3 meters, it has a weather proof cap to prevent the ingress of water or blockage with insects etc.
• The inside diameter of the stack is approximately 80 mm, from a single or twin stream installation it will accommodate the relief valve outlet (32 mm pe pipe) together with, if required, breathers from the regulator, slamshut and relief valve.
site selection
The vent stack may be the only visible above ground part of the pressure reduction installation.
• Locate away from roadways and possible vehicular traffic, a fenced compound is preferred but not essential.
• Locate away from areas liable to prolonged overhead water drips during winter thaws, this will help prevent icing.
• Locate reasonably close to the station to shorten lengths of pipe runs but away from buildings where any vented gas would cause problems.
installation
These recommendations are not intended to over ride the requirements of any applicable code of practice or any regional code. If an operation is covered by an approved code then that code should be followed.
Run the vent and breather pipes to the top of the stack cutting the ends at 45 degrees as shown in the illustration.
Small breather pipes will normally be installed within a length of 20 or 32 mm (PE) ducting entered up inside the stack.
Prop the stack vertically and cast around the base a 500 mm square of concrete approximately 300 mm deep or as the site dictates for stability. The base elbow should be incorporated within the concrete to provide an anchorage and prevent rotation.
Corrosion Protection
The VS3 stack is supplied galvanised to BS 729 at 85 micron min. thickness and normally requires no further above ground protection. The buried portion may, if desired, be over coated with bitumastic for additional protection.
Vent Stack
Note: Cast in situ a 500mm concrete block lay ducts to the access opening prior to casting the block
Relief and Breather Pipes
vent stack - type vs3
serviCe governor Modules
32
notes
SGM-01.01.09The Bryan Donkin RMG Gas Controls policy is one of continuous improvement and development. The company reserves the right to change or introduce improved designs without notice.
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