Manually operated valves and gate valves made of metal except as machine parts; metal valves not being parts of machines

Fittings for engines and installations, namely filters, strainers, flow indicators, and sight glasses; de-aerators for tanks and pipework; pressure regulating valves as parts of machines; valves as parts of machines and installations, namely overflow valves, vacuum valves, safety valves, bleeding/venting valves, float valves, steam traps, flow indicators, filters/strainers, differential pressure and control valves, flow and float switches, level control valves, cut-off valves, stop valves, no...