RE-03 G3/8″ Inline Pneumatic Flow Control Valve
The RE-03 pneumatic flow control valve is designed for manual adjustment of compressed-air flow in a pneumatic system. By changing the opening through the adjustment element, the operating speed of a pneumatic actuator, such as a cylinder, can be controlled.
1. Purpose and operating principle
The RE series is used for flow regulation. Before installation, check the pneumatic circuit diagram and the adjustment direction indicated on the product or in the supplier’s documentation.
2. Technical specifications
| Parameter | Value |
|---|---|
| Model | RE-03 |
| Product type | Inline pneumatic throttle / flow control valve |
| Connection thread | G3/8″ |
| Working medium | Compressed air |
| Operating pressure | 0–0.95 MPa (0–9.5 bar), according to XCPC manufacturer data |
| Operating temperature | 0 to +60 °C, according to XCPC manufacturer data |
| Dimension A | 55 mm |
| Dimension B | 25 mm |
| Dimension C | 55 mm |
| Dimension D | 62 mm |
| Dimension E | Ø25 mm |
| Dimension F | M18×1 |
| Dimension G | G3/8″ |
⚠️ Important: the specifications above are taken from the published XCPC series specification. The Acvatron RE-04 page supplied as a reference could not be loaded during verification; therefore, the price, stock status, product images and exact RE-03 configuration have not been confirmed. Before publication, verify the parameters against the actual product and its datasheet.
3. Design features
Model code
| Code | Meaning |
|---|---|
| RE | Series of pneumatic flow control valves |
| 03 | Version with G3/8″ connection thread |
Series features according to the manufacturer:
- manual adjustment of air flow;
- threaded connection to the pneumatic line;
- compact design for pneumatic systems.
The body material, seal type, nominal flow rate and weight of the specific RE-03 model are not stated in the available XCPC specification. Do not add these details without a datasheet or supplier confirmation.
4. Installation recommendations
- Depressurize the relevant section of the pneumatic system before installation.
- Make sure the mating connection has a matching G3/8″ thread.
- G thread is parallel BSPP. Sealing is usually achieved with a suitable seal appropriate to the fitting design; do not automatically use PTFE tape if the connection seals with a washer or O-ring.
- Do not overtighten or transfer pipe loads to the valve body.
- After installation, introduce air gradually, check joints for leaks and adjust the flow under operating conditions.
- If cylinder speed is unstable, check air filtration, leaks and whether the valve provides the required flow.
5. Equivalents and comparison
Other models in the RE series
| Model | Connection thread | Difference |
|---|---|---|
| RE-01 | G1/8″ | Smaller connection size |
| RE-02 | G1/4″ | Smaller connection size |
| RE-03 | G3/8″ | Model covered here |
| RE-04 | G1/2″ | Larger connection size |
RE-03 and RE-04 should not be treated as interchangeable without checking the thread, required flow and dimensions. The Acvatron RE-04 page is used as a layout reference: RE-04 G1/2″ pneumatic flow control valve.
Cross-references
No exact replacement part number from SMC, Festo, Camozzi, Parker Legris or Metal Work is listed because a verified match for thread, flow capacity, adjustment characteristics and dimensions has not been established. Compare these parameters in the manufacturers’ documentation before selecting an equivalent.
6. Common selection and operating mistakes
- Ordering RE-04 instead of RE-03: their connection threads differ — G1/2″ versus G3/8″.
- Selecting by thread size alone without checking the required airflow.
- Using an unsuitable sealing method for a parallel G thread.
- Failing to check for leaks after pressurizing the system.
- Trying to compensate for insufficient compressor capacity or excessive pipe resistance with a throttle valve.
- Using contaminated or untreated air contrary to the equipment requirements.
7. Applications
The RE-03 pneumatic flow control valve can be used to adjust pneumatic actuator speed on production lines, in automated equipment and in pneumatic assemblies designed for a G3/8″ threaded connection.
When selecting a valve, consider airflow, operating pressure and temperature, and the actuator’s control circuit.
8. Expert opinion
When selecting a flow control valve, consider not only the thread size but also the required actuator speed and actual air consumption. When replacing an existing valve, compare the marking, connections, dimensions and connection diagram.
Vitali Boluchevski, Lead Engineer, Acvatron SRL, 18 years of experience.
9. Frequently asked questions
What thread does the RE-03 valve use?
The XCPC manufacturer specification lists a G3/8″ thread for model RE-03.
What is a pneumatic flow control valve used for?
It restricts and regulates airflow, allowing the speed of a pneumatic mechanism to be adjusted.
What is the operating pressure of the RE-03?
The XCPC specification lists 0–0.95 MPa (0–9.5 bar). Check the datasheet for the supplied product before use.
Can RE-03 be replaced with RE-04?
Not directly: RE-03 has a G3/8″ thread, while RE-04 has G1/2″. Flow and dimensions must also be checked.
Is RE-03 suitable for every pneumatic system?
No. Verify compatibility with the operating pressure, temperature, required flow, air quality and connection type.
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