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what does a vacuum control valve do

by River Bartoletti Published 3 years ago Updated 2 years ago

What does a vacuum control valve do? A vacuum valve is a device that directs the flow of air or fluid to create a vacuum. Vacuum valves are operated inside machinery that use gauges and switches to control the flow of air or pressure inside the valve and release the pressure when needed for its application.

A vacuum regulator controls and stabilizes pressure through the use of inlet and outlet ports that allow higher pressure air into or out of the system as needed.Jun 3, 2020

Full Answer

What is the function of a vacuum valve?

A vacuum valve is a device that directs the flow of air or fluid to create a vacuum. Vacuum valves are operated inside machinery that use gauges and switches to control the flow of air or pressure inside the valve and release the pressure when needed for its application. Click to see full answer.

What are the machines that use vacuum valves?

The Machines that Use Vacuum Valves. There are common industrial uses for a vacuum valve such as in pumps used to remove water and fluids from a machine. This type of vacuum valve is found in large industrial pumps found in factories, plants and other types of facilities such as water filtration plants.

How does a vacuum breaker valve work?

The vacuum breaker valves are designed to remove large quantities of air and it will do it automatically during the pipeline filling and it can also receive large quantities of air automatically when the internal pressure in the pipeline drops below the atmospheric pressure.

How does a vacuum regulator work?

As pressure in the system decreases and the vacuum increases, the diaphragm mechanism applies pressure to the vacuum regulator valve via a plunger, opening the valve and allowing more air into the system.

What does a vacuum switch valve do?

What does the vacuum switching valve do? The vacuum switching valve (VSV) which controls the vacuum supply to the actuator is normally closed and passes vacuum to the actuator when it is energized by the ECU. By energizing the VSV vacuum is passed to the actuator, closing the air control valve. This effectively lengthens the intake manifold run.

How much does a VSV increase engine speed?

The VSV allows only a small amount of air to by-pass the closed throttle valve when it is open, increasing engine speed by about 100 rpm when energized.

Jersey

Hey all. Question: What does the VCV do and when does it open/close? It threads right into the 4th intake runner and the hose coming off the other end runs to a hard line that's t'd with the hardline behind the Air Regulator then continues straight to the J-pipe off of the T3. Couldn't find anything last night in the FSM about it. '82 ZXT motor.

SleeperZ

I've wondered that myself. When I was using the stock turbo manifold, I never had it hooked up, and never gave it a second thought.

Jersey

I put in all new pipes for the I.C install and replaced the stock J-pipe with a 90deg 2" piece and didn't blow an extra hole in it and weld the 3/4" nipple on like the stock J-pipe had. I just plugged that side of the "t" that went to the stock j-pipe.

jeffp

That part you are talking about controls the idle on a stock engine. If you had an intake off of the car you would see that the inlet/outlet which ever you like to look at it, are actually down into the main plenimum. The two relays with the vacuum diafram that are in front of the AFM on the bracket controls the operation of the part via vacuum.

Lockjaw

You know, when I put a ZXT engine in my 240z, it had the annoying habit of the rpms hanging at 3k when I made a little boost and then shifted gears. Partial throttle sort of thing. After about 6 months of playing with it, I removed that valve, and plugged it with some brass fittings, and problem solved.

Jersey

Thanks for the replies guys. Unfortunatly, i'm still not clear on how it works. Ok, scenerio - I'm boosting say 10psi...air is rushing out of the T3 and through the J-pipe. Right after the first bend of the J-pipe is a port, a 3/4" nipple with a hose attached to it going to a metal tee on top of the manifold.

stagefumer11

You know, when I put a ZXT engine in my 240z, it had the annoying habit of the rpms hanging at 3k when I made a little boost and then shifted gears. Partial throttle sort of thing. After about 6 months of playing with it, I removed that valve, and plugged it with some brass fittings, and problem solved.

How does a vacuum regulator work?

A vacuum regulator controls and stabilizes pressure through the use of inlet and outlet ports that allow higher pressure air into or out of the system as needed. Vacuum breakers and regulators operate under similar principles, but where a regulator will not allow air into the process line, a vacuum breaker will.

What is a vacuum regulator?

Vacuum pressure regulators and vacuum breakers are both used to maintain pressure within a system, but each uses different mechanical principles to achieve this goal. Mechanical regulators are constructed to regulate pressure through an inlet port, while vacuum relief regulators, or vacuum breakers, regulate pressure through the outlet port.

What is a vacuum controller?

Another type of vacuum controller is the vacuum breaker. It lets ambient air into the vacuum system to control the vacuum pressure. It is also called a vacuum relief regulator. These regulators are a type of pressure reducing regulator as the pressure is controlled by using the outlet port. The regulator opens, letting more air in, ...

What is a vacuum regulator?

All About Vacuum Regulators. A vacuum regulator is a mechanism used to control and maintain a vacuum system’s desired vacuum pressure. The function of the regulator is to keep the vacuum of the draining system at a preset level by responding to fluctuating air admissions into the system. There are multiple kinds of vacuum regulators, ...

What are the two types of vacuum control devices?

What are the types of vacuum control? The two main types of vacuum control devices are vacuum regulators and vacuum breakers. Vacuum regulators function by regulating the flow between the vacuum pump and the system to control the level of pressure. This type is also called a back pressure regulator since the pressure controlled is at ...

What is the difference between a vacuum breaker and a regulator?

Vacuum breakers, another vacuum control device that will be discussed later, and regulators function under similar principles, the main difference being that a regulator does not allow air into a system’s process line and a vacuum breaker does. The regulator should be positioned either close to, or directly on, the vacuum reserve tank.

What happens when the pressure setting is reached in a vacuum pump?

When the process vacuum’s pressure setting is reached, the vacuum regulator closes, blocking the extra flow of the vacuum supply line. If the pressure in the system is higher than desired, the valve opens, allowing airflow out.

How does a vacuum plunger work?

When the vacuum is too high, the plunger forces the valve seat down, allowing more outside air into the process. As the vacuum pressure increases towards the preset level, the plunger rises again, restricting incoming airflow.

What are the disadvantages of a vacuum regulator?

The disadvantages of vacuum regulators are: they must be large enough to allow the entire vacuum flow to pass through.

What is the heater control valve?

As its name implies, the heater control valve controls the flow of coolant through the heater core. To have a better understanding of the heater control valve, it’s important to first know how your car’s heater works. Your car’s heater relies on hot coolant—from the engine’s cooling system—to warm the cabin.

How to tell if heater control valve is faulty?

An inoperative heater is the most common sign of a faulty heater control valve. Heater control valves can also develop coolant leaks. Of course, other faulty components can produce the same symptoms, so you’ll want to test the heater control valve to ensure it’s to blame.

What happens if you remove the valve and connect the heater core?

If the valve is removed and the hose is connected directly to the heater core, hot coolant will be running through the core all of the time, potential ly resulting in climate control performance problems. On the other hand, if the valve and heater core are both bypassed, the vehicle’s heater will be inoperative.

How to tell if a heater valve is stuck?

Check the temperature of the valve’s outlet hose (between the valve and the heater core)—it should feel nearly as hot as the valve’s inlet hose. If the outlet hose is noticeably cooler than the inlet hose, the valve is likely stuck closed, preventing coolant from circulating through the heater core.

How does a water pump work?

The water pump also forces hot coolant through the heater core during the cooling system’s cycle. A pair of hoses connect the heater core to the cooling system. When the driver turns on the climate control system’s fan, a blower motor forces air across the heater core, transferring heat into the cabin.

What are the components of a cooling system?

A typical cooling system has four primary components: the water pump, radiator, thermostat, and heater core. When the vehicle is running, the engine-driven water pump moves coolant through the engine (where the coolant picks up heat) and toward the thermostat. The thermostat blocks coolant flow to the radiator until the engine reaches operating ...

How does a thermostat work?

The thermostat blocks coolant flow to the radiator until the engine reaches operating temperature. Then, the thermostat opens, allowing coolant to flow from the engine to the radiator. After being cooled in the radiator, the coolant returns to the water pump to repeat the cycle. The water pump also forces hot coolant through ...

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How A Vacuum Valve Works

  • A vacuum valve is a device that directs the flow of air or fluid to create a vacuum. Vacuum valves are operated inside machinery that use gauges and switches to control the flow of air or pressure inside the valve and release the pressure when needed for its application. The valve is opened by the operator with the use of the switch mechanism.
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The Machines That Use Vacuum Valves

  • There are common industrial uses for a vacuum valve such as in pumps used to remove water and fluids from a machine. This type of vacuum valve is found in large industrial pumps found in factories, plants and other types of facilities such as water filtration plants. Vacuum valves can also be found on large boats. Vacuum valves can be found in cars using vacuum pressure for dif…
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More About Vacuum Valves

  • A vacuum valve is used in vacuum machine such as vacuum cleaners. You can learn how a vacuum valve by taking apart an older vacuum cleaner to examining the vacuum valve inside. This will show you how the vacuum valve works up close and how you to use a vacuum valve to create a vacuum. If you ask a vacuum cleaner repair technician at a vacuum cleaner store they can giv…
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Learning More About Vacuum Valves

  • Vacuum valves come in many different sizes and types in accordance with the application that they are assigned to. The machine or vacuum valve system that uses the part works in a similar manner regardless of size or function. The principle for vacuum valves is the same in water systems such as fire and hydration systems as well as snow makers as it is for pumps and othe…
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