Types of valves in hospital plant building?

1. Ball valves
2. Gate valves
3. Globe valves
4. Check valves
5. Butterfly valves
6. Pressure relief valves
7. Diaphragm valves
8. Solenoid valves
9. Needle valves
10. Control valves

Check Valves:

- Prevent backflow in pipelines
- Swing check valves
- Tilting disc check valves
- Wafer check valves
- Lift check valves

Gate Valves:

- Control water flow and isolate segments of piping
- Wedge gate valves
- Parallel gate valves
- Knife gate valves
- Rising stem gate valves
- Non-rising stem gate valves

Globe Valves:

- Control water flow and throttle pressure
- Plug valves
- Diaphragm valves
- Needle valves
- Stop valves

Ball Valves:

- Quickly shut off or divert flow
- Quarter-turn valves
- Floating ball valves
- Trunnion ball valves

Butterfly Valves:

- Control flow in large-diameter pipelines
- Lug-style butterfly valves
- Wafer-style butterfly valves
- Concentric butterfly valves

Pressure-Reducing Valves:

- Reduce water pressure to a desired level
- Diaphragm-operated pressure-reducing valves
- Pilot-operated pressure-reducing valves

Safety Relief Valves:

- Protect piping and equipment from excessive pressure
- Spring-loaded safety valves
- Pilot-operated safety valves

Control Valves:

- Regulate flow, pressure, or temperature
- Pneumatic control valves
- Electric control valves
- Hydraulic control valves

Pinch Valves:

- Control flow in flexible piping
- Hose-pinch valves
- Diaphragm-pinch valves

Solenoid Valves:

- Control flow using electrical signals
- Normally open or normally closed
- Direct-acting or pilot-operated

Backflow Preventers:

- Prevent contaminated water from entering the water supply
- Reduced pressure zone (RPZ) backflow preventers
- Double check valve backflow preventers
- Air gap backflow preventers

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