scope:

SCOPE

This Specification provides the purchasing requirements for:

• low pressure domestic meter installation kits

• use with 2^nd family gases

• flow rates not exceeding 6 m³ h^-1, and

• a nominal metering pressure of 21 mbar.

The operating temperature range of the meter installation kit is -20ºC to +60ºC.

Meter installation kits designed to this Specification are appropriate for connecting to a standard low pressure Network, the operating parameters of which are shown in Table 1.

The meter installation kits are designed to provide a suitable pressure at the consumer's appliance(s), assuming the use of standard appliances, and pipework in accordance with BS 6891.

Meter installation kits include the items required for the installation of a domestic meter from the outlet of the emergency control valve to the outlet of the meter installation. The meter installation kit includes:

• the meter regulator

• flexible meter connector

• shear bolts, security washers and union washers (as appropriate to the customer's requirements) and

• any associated fittings, labels and drawings.

Note 1: The kit does not include the meter.

Note 2: This Specification also includes a regulator exchange kit (RF), intended for use on existing meter installations, which does not include the meter outlet liner.