Pneumatic Mechanical Valve For Air System

What's The Pneumatic Mechanical Valve?

Pneumatic mechanical valves are air valves operated by external mechanical forces—such as cams, rollers, levers, or strikers—that produce axial force to move the valve stem quickly and redirect airflow.

Types of Valves

Mechanical-controlled valves include:

Five-way valves: Used to directly control double-acting cylinders.
Three-way valves: Used to control single-acting cylinders and generate control signals.

Both types are typically spring-return designs and use direct tube connections.

Actuation Mechanisms

Common actuation types include:

Round head
Roller
Lever roller
Pass-through types

1. Hand Lever Valve

1. Standard Hand Lever Valve (Toggle Valve)

Function: Uses a mechanical lever to drive the valve stem, redirecting airflow.

Working Principle: Similar to the solenoid-operated directional control valve, but actuated manually.

Available Configurations:

Two-position, three-way

Two-position, five-way

Three-position, five-way

3 ways/5 ways push-pull mechanical valve

Key Features:

Valve Model: 3/2-way; 5/2 way; 5/3-way
Port Sizes: 1/8″, 1/4″, 3/8″
Thread Types: PT, G, NPT
Working Pressure: 0-1.0 Mpa/142Psi
Proof Pressure: 1.5Mpa/210Psi
Fast Delivery & Competitive Pricing: Short lead times and excellent value.

2. Manual Rotary Valve

Function: Uses rotational motion to change airflow direction via a disc-shaped conversion element.

Available Configurations:

Two-position, four-way

Three-position, four-way

Components:

Handle

Main valve body

Two ceramic discs

Valve seat

Mechanism:

The handle connects to a sealed rotary shaft, which drives a ceramic diaphragm.

Rotating the handle aligns or misaligns orifices in the ceramic disc, opening or closing airflow paths.

HV Manual rotary lever valve

Key Features:

Valve Model: 4/2 way; 4/3-way
Port Sizes: 1/8″, 1/4″, 3/8″, 1/2″, 3/4″
Thread Types: PT, G, NPT
Working Pressure: 0-1.0 Mpa/142Psi
Proof Pressure: 1.5Mpa/210Psi
Fast Delivery & Competitive Pricing: Short lead times and excellent value.

The air-controlled Pneumatic Mechanical Valve

Air-controlled directional valves—also known as air valves or air control valves—use compressed air as their actuation power instead of electricity.

This design eliminates the risks associated with electric sparks or moisture-related leakage, making them ideal for harsh and hazardous environments such as:

Flammable or explosive areas
Humid or wet conditions
Dusty workplaces

In these settings, fully pneumatic control ensures safer and more reliable operation.

Control Types

Air control valves are available in two control modes:

Single Air Control: Controlled by one air signal.

Double Air Control: Controlled by two air signals for more complex operations.

K25JK Air operated valve

Key Features:

Valve Model: 5/2 way
Port Sizes: 1/8″, 1/4″, 3/8″, 1/2″, 3/4″, 1″, 1-1/4″, 1-1/2″
Thread Types: PT, G, NPT
Working Pressure: 0.2-0.8 Mpa/112Psi
Fast Delivery & Competitive Pricing: Short lead times and excellent value.

Air operated Pneumatic Mechanical Valve

Key Features:

Valve Model: 3/2 way, 5/2way, 5/3way
Port Sizes: 1/8″, 1/4″, 3/8″, 1/2″
Thread Types: PT, G, NPT
Working Pressure: 0-1.0 Mpa/142Psi
Proof Pressure: 1.2Mpa/170Psi
Fast Delivery & Competitive Pricing: Short lead times and excellent value.

Pneumatic Mechanical Valve-Air check valve

Air check valves are designed to allow airflow in only one direction while completely blocking flow in the opposite direction. This ensures unidirectional control within pneumatic systems.

Structure and Operation

Typically designed as poppet valves with a spring-loaded mechanism for automatic closure.
Valve cores may be:
- Spherical
- Conical
- Disc-shaped
Sealing is achieved using gaskets, ensuring tight shut-off.
Note: The working principle and symbol are similar to hydraulic check valves, with the main difference being the sealing method.

KA Air check valve

Key Features:

Port Sizes: 1/8″, 1/4″, 3/8″, 1/2″, 3/4″, 1″
Thread Types: PT, G, NPT
Working Pressure: 0.15-0.8 Mpa/120Psi
Proof Pressure: 1.5Mpa/210Psi
Fast Delivery & Competitive Pricing: Short lead times and excellent value.

What's the air flow control valve ?

Air control valves are precision components used to regulate the flow of compressed air within pneumatic systems. These valves typically feature finely threaded stems that allow for gradual and precise adjustment of airflow.

How They Work

Air enters through the input port
It passes through an orifice controlled by a tapered stem
Flow is restricted or allowed based on how far the stem is inserted
Air exits through the output port

By adjusting the stem, the size of the orifice changes, directly affecting the airflow rate. This principle follows the basic fluid dynamic rule: a smaller orifice means lower flow, assuming a constant differential pressure.

Flow Control pneumatic mechanical valve

Key Features:

Port Sizes: 1/8″, 1/4″, 3/8″, 1/2″
Thread Types: PT, G, NPT
Working Pressure: 0-0.95 Mpa/140Psi
Proof Pressure: 1.5Mpa/210Psi
Fast Delivery & Competitive Pricing: Short lead times and excellent value.

Pneumatic Foot Pedal Valves (Foot Valves)

A pneumatic foot pedal valve, also known simply as a foot valve, is a valve actuated by foot pressure. It allows operators to control pneumatic actuators while keeping their hands free—ideal for manual assembly and tasks that require two-handed operation.

How It Works

The valve consists of a foot pedal connected via a lever mechanism to a spring-return valve column.

Pressing the pedal depresses the valve stem, changing the air flow direction.

When released, the spring mechanism resets the valve to its original position.

Port Configurations

5/2 Way Foot Valve

Controls double-acting cylinders.
First press: cylinder extends and stays extended.
Second press: pedal releases, valve resets, and cylinder retracts.

3/2 Way Foot Valve

- Suitable for single-acting cylinders.
- Pressing the pedal allows air to actuate the cylinder.
- Releasing the pedal exhausts air and resets the cylinder.

Foot pedal valve

Key Features:

Valve Model: 3/2 way; 4/2-way; 5/2way
Port Sizes: 1/8″, 1/4″,
Thread Types: PT, G, NPT
Working Pressure: 0-1.0 Mpa/142Psi
Proof Pressure: 1.5Mpa/210Psi
Fast Delivery & Competitive Pricing: Short lead times and excellent value.

Pneumatic Push-Button Valves

Pneumatic push-button valves are manual control components used to signal or operate pneumatic devices within a system. They typically employ a column valve mechanism to change the direction of airflow when the button is pressed. Upon release, a spring return mechanism resets the valve to its original state.

How They Work

A push-button is directly linked to the valve column.
Pressing the button actuates the column and changes the airflow.
Releasing the button allows the spring to return the valve to its initial position.
The internal valve structure is usually a sliding column type for stable operation.

Push-Button Styles

Push-buttons are available in various shapes and colors:
Mushroom, flush, shrouded, and knob types.
Colors: typically red, green, or black for intuitive use.

Valve Types (Based on Port Configuration)

2/3 Way Valve: Two positions, three ports — ideal for single-acting cylinders.
2/5 Way Valve: Two positions, five ports — used for double-acting cylinders.

Pneumatic Push-Button Valves

Key Features:

Valve Model: 3/2 way; 5/2-way
Button Type: Roller type, Selective knob, Strenthened knob, Large round button, Plat round botton, Convex round button, With lock button.
Port Sizes: 1/8″, 1/4″,
Thread Types: PT, G, NPT
Working Pressure: 0-1.0 Mpa/142Psi
Proof Pressure: 1.5Mpa/210Psi
Fast Delivery & Competitive Pricing: Short lead times and excellent value.

Pneumatic Mechanical Valve - Shuttle Valve ?

A shuttle valve is a common type of directional control valve, typically featuring three ports:

A normal system inlet
A secondary or emergency inlet
A common outlet

In some applications, such as those involving multiple actuating units, the valve may also include additional outlet ports.

Types of Shuttle Valves

There are two main types of shuttle valves:

Double Pressure Shuttle Valve – Used to select the higher of two input pressures.
Signal Pressure Shuttle Valve – Used primarily for pneumatic control signals.

Pneumatic Shuttle Valves

Key Features:

Port Sizes: 1/8″, 1/4″, 3/8″, 1/2″, 3/4″, 1″
Thread Types: PT, G, NPT
Working Pressure: 0-0.95 Mpa/140Psi
Proof Pressure: 1.5Mpa/210Psi
Fast Delivery & Competitive Pricing: Short lead times and excellent value.

Pneumatic Mechanical Valve - quick exhaust valve?

A quick exhaust valve—also known as an air exhaust valve—is designed to rapidly release air from a controlled device, significantly improving response time. It typically features three ports:

Device Port – Connected to the actuator or cylinder from which air needs to be released.
Control Port – Receives the control air signal.
Exhaust Port – Releases the air to the atmosphere.

Quick exhaust valves are generally installed close to the actuator or cylinder, rather than routing air back through the control valve. This reduces exhaust travel distance and improves system efficiency.

Air Quick Exhaust Valve?

Key Features:

Port Sizes: 1/8″, 1/4″, 3/8″, 1/2″, 3/4″
Thread Types: PT, G, NPT
Working Pressure: 0.15-0.95 Mpa/140Psi
Proof Pressure: 1.5Mpa/210Psi
Fast Delivery & Competitive Pricing: Short lead times and excellent value.

Pneumatic Mechanical Valve-Hand Slide Valve

A hand slide valve is a 2/3-way manual valve used to control the flow of compressed air. It consists of two main components:

A machined column
A sliding sleeve

These valves are typically made from aluminum alloy or brass for durability and corrosion resistance.

Typical Applications

Hand slide valves are commonly used in:

Test benches
Air service units
Before control valves

They are particularly useful in applications where downstream pressure must be safely released after a system cycle or before maintenance.

Hand Slide Valve

Key Features:

Valve model: 3/2 way
Port Sizes: 1/8″, 1/4″, 3/8″, 1/2″, 3/4″, 1
Thread Types: PT, G, NPT
Working Pressure: 0-1.0 Mpa/145Psi
Proof Pressure: 1.5Mpa/215Psi
Fast Delivery & Competitive Pricing: Short lead times and excellent value.

Pneumatic Mechanical Valve Application

1. Hand Lever Valve

Hand lever valves are used for manual control of various pneumatic equipment. Typical applications include:

Air chucks
Vacuum venturi systems
Pneumatic actuators
Machine guarding mechanisms

These valves allow direct operator control, making them suitable for environments requiring frequent manual intervention.

2. Manual Rotary Valve

Manual rotary valves are typically used to operate single-acting or double-acting cylinders. By rotating the valve handle, air direction is manually controlled to extend or retract the cylinder piston.

3. Air-Controlled Directional Valve

Air-controlled directional valves are used in environments where electrical operation may pose a hazard, such as areas with flammable gases. Instead of electrical signals, these valves use compressed air signals to shift the valve spool and direct airflow.

4. Air Check Valve

Air check valves are used to stop the cylinder piston at a desired intermediate position. This is achieved by either:

Cutting off the working air supply, or
Using a special control signal to block the air passage

They are essential for applications requiring precise control over piston travel.

5. Air Flow Control Valve

These valves regulate the airflow rate within a pneumatic system, often used in meter-in control circuits. By adjusting the flow rate, they help fine-tune the speed of actuators or other downstream components.

6. Foot Pedal Valve

Foot pedal valves allow hands-free control of pneumatic equipment. When the pedal is pressed, a burst of air is sent through the connected hose, causing the cylinder rod to extend or retract.

These valves are ideal for wet or hazardous environments, where separating electrical components from water ensures user safety.

7. Pneumatic Push-Button Valve

Push-button valves provide manual pneumatic signaling within a system. They are often used to activate a column valve that controls the direction of airflow. These valves are simple, reliable, and easy to operate.

8. Air Shuttle Valve

A shuttle valve is a common directional control valve with:

Two inlets (primary and emergency)
One outlet

It allows air to flow from whichever inlet is pressurized, automatically blocking the other. Some designs include multiple outlets to control more than one actuator.

9. Quick Exhaust Valve

Quick exhaust valves are used to rapidly release compressed air, improving actuator response times. They are installed close to the cylinder exhaust port to vent air directly, rather than routing it back through the solenoid valve. This is especially beneficial in large-bore cylinders or systems with long exhaust lines.

10. Hand Slide Valve

Hand slide valves are 2/3-way manual valves used primarily as isolation valves. By sliding the sleeve, the operator can allow air to flow or vent the downstream line. Common applications include:

Test benches
Air preparation units
Before control valves

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Pneumatic Mechanical Valve For Air System

What's The Pneumatic Mechanical Valve?

Types of Valves

Actuation Mechanisms

1. Hand Lever Valve

1. Standard Hand Lever Valve (Toggle Valve)

3 ways/5 ways push-pull mechanical valve

2. Manual Rotary Valve

Function: Uses rotational motion to change airflow direction via a disc-shaped conversion element.

HV Manual rotary lever valve

The air-controlled Pneumatic Mechanical Valve

Control Types

K25JK Air operated valve

Air operated Pneumatic Mechanical Valve

Pneumatic Mechanical Valve-Air check valve

Structure and Operation

KA Air check valve

What's the air flow control valve ?

How They Work

Flow Control pneumatic mechanical valve

Pneumatic Foot Pedal Valves (Foot Valves)

How It Works

Port Configurations

5/2 Way Foot Valve

3/2 Way Foot Valve

Foot pedal valve

Pneumatic Push-Button Valves

How They Work

Push-Button Styles

Valve Types (Based on Port Configuration)

Pneumatic Push-Button Valves

Pneumatic Mechanical Valve - Shuttle Valve ?

Types of Shuttle Valves

Pneumatic Shuttle Valves

Pneumatic Mechanical Valve - quick exhaust valve?

Air Quick Exhaust Valve?

Pneumatic Mechanical Valve-Hand Slide Valve

Typical Applications

Hand Slide Valve

Pneumatic Mechanical Valve Application

1. Hand Lever Valve

2. Manual Rotary Valve

3. Air-Controlled Directional Valve

4. Air Check Valve

5. Air Flow Control Valve

6. Foot Pedal Valve

7. Pneumatic Push-Button Valve

8. Air Shuttle Valve

9. Quick Exhaust Valve

10. Hand Slide Valve