Enough to shag it, spoken from experience ;)
The average automotive radiator is actually two radiators in one - the larger section for the engine's coolant and the smaller section for the cooling of Transmission Fluid with some having a section for the cooling of Power Steering fluid.
The only valve in a radiator is one at the bottom for draining and flushing of the engine coolant; the rest of the radiator's interior tubing is clear and un-restricted.
landcranch
A large selection of companies produce radiator valves. IVAR and MEPCO are two of the largest producers of radiator valves in the US. There parts can be found through their distributor listings.
Of course
Pressure and Vacuum
Look at the bottom or rear of radiator
Valves will clatter if the engine is overheating.Valves will clatter if the engine is overheating.
Steam radiator valves should always be fully open, or fully closed. Steam enters the radiator from the boiler, and fills the radiator. The air vent shuts, having sensed moisture inside the radiator. The steam then cools, condenses to water, and drains from the radiator. If you leave a valve partially open, then the steam enters easily, because of the pressure. But, the water has a difficult time draining, so the radiator can collect it, and steals it from the furnace, which needs it for resupply.
There are two main types of steam radiator valves: thermostatic and manual. Thermostatic valves use a temperature-sensitive element to automatically adjust the flow of steam based on the room's temperature. Manual valves, on the other hand, require manual adjustment to control the steam flow. Both types help regulate the amount of steam entering the radiator, which in turn controls the heat output and maintains a comfortable temperature in the room.
3 valves
16 valves
3 valves
There are 3 drain plugs on the Toyota Tundra V8 engine and radiator. On the radiator petcock, the plastic thumbscrew, and drain valves are on the bottom, driverâ??s side of the radiator.
With non electric zone valves on each radiator