List of activities classified inside the UK SIC Code 28140
- Ball valves (manufacture)
- Plug valves (manufacture)
- Pressure reducing valves (manufacture)
- Process control valves (manufacture)
- Reducing valves (manufacture)
- Relief valves (manufacture)
- Safety valves (manufacture)
- Sanitary taps (manufacture)
- Sanitary valves (manufacture)
- Stopcocks for domestic use (manufacture)
- Tap parts (manufacture)
- Taps (manufacture)
- Taps for domestic use (manufacture)
- Temperature regulators (manufacture)
- Valve actuators (electrical (other than electric motors)) (manufacture)
- Valve parts (manufacture)
- Valves for industrial use (manufacture)
- Penstock valves (manufacture)
- Parallel slide valves (manufacture)
- Butterfly valves (manufacture)
- Check valves (manufacture)
- Christmas trees and other assemblies of valves (manufacture)
- Cocks for industrial use (manufacture)
- Diaphragm valves (manufacture)
- Gas cylinder outlet valves (manufacture)
- Gate valves (manufacture)
- Globe valves (manufacture)
- Heating taps (manufacture)
- Heating valves (manufacture)
- Industrial intake taps (manufacture)
- Industrial regulating valves (manufacture)
- Industrial taps (manufacture)
- Knife valves (manufacture)
- Needle valves (manufacture)
- Non-return, reflux and check valves (manufacture)
- Valves for tyres (manufacture)