Air Valve (Spool/Shuttle)

Product Specifications

Technical details and manufacturing context for Air Valve (Spool/Shuttle)

Definition

The Air Valve (Spool/Shuttle) is a component used in pneumatic systems to control the direction, flow, and pressure of compressed air. It is typically installed within an air distribution system to manage the operation of actuators, cylinders, and pneumatic tools. The valve operates by moving a cylindrical spool or a shuttle element inside a precisely machined body. This movement aligns or blocks internal passages, connecting or isolating the inlet, outlet, and exhaust ports. As a result, compressed air is directed to specific outlets to extend or retract actuators, or to exhaust air from the system. Actuation can be pneumatic, electric (solenoid), or manual, depending on the application. The valve is available in various configurations, with port sizes ranging from G1/8 to G1/2 (ISO 228-1), flow capacities (Cv) from 0.5 to 4.0, and operating pressures from 0.1 to 1.0 MPa. Proof pressure is 1.5 times the maximum operating pressure. Operating temperature range is -5 to 60 °C. Leakage rate is ≤0.1 L/min at rated pressure (ISO 11727). Response time is 10 to 50 ms, depending on solenoid and pressure. Solenoid voltage is 24 V DC ±10% (IEC 61131-2), with power consumption of 2.5 to 6.0 W. Ingress protection is IP54 to IP65 (IEC 60529). Body materials include aluminum or stainless steel (ASTM B221), and seal materials are NBR or FKM (ASTM D2000). Weight ranges from 0.3 to 1.5 kg. These values are typical reference ranges; actual specifications must be confirmed with the manufacturer for the specific model and application. The valve is used in industrial machinery, automation, and process control. It is essential to verify that the selected valve meets the required standards and performance criteria for the intended use.

Working Principle

The valve operates via pneumatic, electric, or manual actuation. When actuated, the spool or shuttle slides linearly within a precision-bored housing, aligning its lands and grooves with ports in the valve body. This alignment either connects or blocks the inlet, outlet, and exhaust ports, thereby directing compressed air to specific outlets to extend or retract actuators, or to exhaust air from the system. The movement is precise and repeatable, enabling automated control of machinery and processes.

Common Materials

Brass, Stainless Steel, Aluminum, Engineering Plastics (e.g., POM, Nylon)

Technical Parameters

Parameter	Typical range	Notes & selection driver
Port Size	G1/8–G1/2 inch	Common pneumatic port sizesISO 228-1
Flow Capacity (Cv)	0.5–4.0 Cv	Higher Cv for larger ports
Operating Pressure	0.1–1.0 MPa	Below 0.1 MPa may cause insufficient shifting force
Proof Pressure	1.5 MPa	1.5 times max operating pressure
Operating Temperature	-5–60 °C	Seals may fail outside this range
Leakage Rate	≤0.1 L/min	At rated pressureISO 11727
Response Time	10–50 ms	Depends on solenoid and pressure
Solenoid Voltage	24 ±10% V DC	Other voltages availableIEC 61131-2
Power Consumption	2.5–6.0 W	For solenoid pilot
Ingress Protection	IP54–IP65 IP	IP65 for washdown environmentsIEC 60529
Body Material	Aluminum/Stainless Steel	Stainless for corrosive mediaASTM B221
Seal Material	NBR/FKM	FKM for high temperatureASTM D2000
Weight	0.3–1.5 kg	Depends on port size and body

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Valve Body
Houses internal components and provides port connections for air lines.

Material: Aluminum or Brass
Spool/Shuttle Part
The moving element that shifts to open or block air passages, controlling flow direction.

Material: Stainless Steel or Hardened Steel
Seals (O-rings) Part
Prevent air leakage between the spool and body, and at port connections.

Material: Nitrile Rubber (NBR) or Fluorocarbon (FKM)
Actuator (e.g., Solenoid Coil)
Provides the force (electromagnetic, pneumatic) to move the spool/shuttle.

Material: Copper Wire, Steel, Plastic Housing
Spring (if applicable) Optional Part
Returns the spool to a default position when actuation force is removed.

Material: Stainless Steel

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Air Distribution System

View system integration details

Manufacturers of Air Valve (Spool/Shuttle)

Manufacturer profiles associated with Air Valve (Spool/Shuttle).

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Frequently Asked Questions

What is the typical operating pressure range for this valve?

The typical operating pressure range is 0.1 to 1.0 MPa. However, the exact range depends on the specific model and configuration. Always verify with the manufacturer.

What materials are commonly used for the valve body and seals?

Common body materials are aluminum and stainless steel (ASTM B221). Seal materials are typically NBR or FKM (ASTM D2000). The choice depends on the application and media.

What is the response time of the valve?

The response time is typically 10 to 50 ms, depending on the solenoid and operating pressure. This is a reference range; actual response time should be confirmed for the specific model.

What ingress protection ratings are available?

The valve is available with IP54 to IP65 ratings (IEC 60529). IP65 is suitable for washdown environments. Verify the required rating for your application.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	0 to 150 psi (10 bar)
flow rate:	Up to 100 SCFM
temperature:	-20°C to 80°C
slurry concentration:	Not recommended for slurry applications

Product Specifications

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