22/026 - Gate Valves Qualification System

Wales

42131141 - Pressure-reducing valves

42131140 - Pressure-reducing, control, check or safety valves

9123000 - Natural gas

42131100 - Valves defined by function

65210000 - Gas distribution

42131230 - Gate valves

44161100 - Gas pipelines

31711400 - Valves and tubes

44161110 - Gas-distribution network

44161600 - Low-pressure pipeline

42131200 - Valves defined by construction

39340000 - Gas network equipment

42131147 - Safety valves

natural gas

utility gas

metropolitan gas

methane gas

fuel gas

valves and tubes

electronic valves

radio tubes

CRT tube

microwave tube

gas network equipment

gas pipeline fittings

gas distribution hardware

IPv gas valves

pressure regulators

pipeline components

control valves

pressure valves

safety valves

sluice valves

radiator valves

temperature regulators

function-specific valves

industrial valve

pressure reducing valve

control valve

check valve

safety valve

relief valve

pressure regulator

backflow preventer

safety relief valve

valve assembly

pressure control valve

pressure-limiting valve

downstream pressure valve

water pressure reducer

pressure safety valve

excess pressure valve

overpressure valve

spring-loaded safety valve

boiler safety valve

safety pop valve

fluid safety valve

safety shut-off valve

pressure protection valve

built-type valve

structural valve

valve by construction

valve assembly type

housing-defined valve

engineered valve

factory-made valve

prefabricated valve

fabricated valve

assembled valve

gate valve

sluice valve

rising stem valve

knife gate valve

wedge gate

gate stop valve

industrial sluice

isolation gate valve

water gate valve

oil gate valve

natural gas line

methane carrier

fuel transmission pipe

gas utility conduit

energy supply pipeline

municipal gas grid

regional supply system

gas mains network

urban fuel routing

utility distribution loop

low‑pressure pipeline

utility distribution conduit

residential pipeline

low-stress fluid transport pipe

standard pipeline

natural gas delivery

gas supply network

pipeline gas

residential gas

utility gas distribution

gas flow regulation

public gas service

LPG distribution

commercial gas systems

energy pipeline service