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Secondary Meter Installation Kits


STANDARD U6/G4 SECONDARY (SUB) METER INSTALLATION

The installation of secondary meters must be carried out in accordance with gas safety regulations. When preparing the design of a gas installation after the Primary Meter, allowance must be made for the pressure loss due to the installation of any Secondary (Sub) Gas Meter(s). To accommodate a Secondary (Sub) Gas Meter within the gas installation a pressure loss of 0.5 mbar should be allowed. At this pressure loss it is important to know the maximum gas rate that will pass through the meter. Click here for the Specification table.

The products illustrated in the diagram below are available in the catalogue together with a wide range of meter box housings. For alternatives see:

1. Meter Box Housings
2. Meters
3. Gas cocks.

Please note that meter brackets will only accept meters P/N 21423, 12845, and 8293 and that the correct bracket must be ordered for the specific meter. Please click here for these



SECONDARY (SUB) METER FIXING KITS, INCLUDING METER

This illustration represents a typical arrangement ONLY - details may vary. Not all the items illustrated are included in the kits below.

G4 Meter Kit - Ports 110 mm apart

Meter reads in cubic metres. Inlet and outlet 110 mm apart
Kit consists of:
Part No.
Page No.
1 xG4 meter - made in EU
8293
1 x Wall mounted meter bracket
6000
2 xSecurity washers
8212
2 xShear bolts
8213
2 x1" Meter adaptors, 22 mm copper outlet, without lug
0981
2 x1" Meter washers, union, BS 746
2415
1 xCapillary main cock rigid fan
6223
1 xSecondary meter sticker
8716
If meter box is needed, please click the following link: Meter Housing box - built in or wall mounted

P/N 7427 for built-in. P/N 7428 for wall-mounted.
Part No.DescriptionUnit PriceQty
 12671 G4 Meter Kit, (cubic metres)1-9 51.82
   10+ 41.97  

G4 and U6 Meter Kits - Ports 152.4 mm apart

Meter reads in cubic metres . Inlet and outlet 152.4 mm apart. (as historically on British Gas domestic installations)
Kit consists of :
Part No.
Page No.
1 x G4 meter (reads in cubic metres)
12845
or1 x U6 meter (reads in cubic metres)
21423
1 xWall mounted meter bracket
8211
2 xSecurity washers
8212
2 xShear bolts
8213
2 x1" Meter adaptors, 22 mm copper outlet, without lug
0981
2 x1" Meter washers, union, BS 746
2415
1 xCapillary main cock rigid fan
6223
1 xSecondary meter sticker
8716
If meter box is needed, please click the following link: Meter Housing box - built in or wall mounted

P/N 8310 for built-in. P/N 9357 for wall-mounted.
Part No.DescriptionUnit PriceQty
 12882 G4 meter kit, (cubic metres)1-9 50.41
   10+ 40.83  
 21457 U6 meter kit, (cubic metres)1-9 67.40
   10+ 54.59