Breather Vent Plug & Pressure Relief Valve Manufacturer
Explore enclosure breather vents, one-way pressure relief valves and combined breathing and relief solutions. Select by function, mounting interface and operating pressure.
Find your product series
Compare the material, head style and mounting connection.
Snap-on waterproof vents
Stainless steel threaded vents
Flat hex stainless steel vents
Round slotted stainless steel vents
Standard slotted stainless steel vents
Nickel-plated brass vents
Flat hex brass vents
Aluminum alloy threaded vents
Slotted aluminum vents
No series matches this material. Select All materials to reset.
Pressure relief valve series
Dedicated pressure release or breathing and relief in one assembly.
Safety One-Way Pressure Relief Valves
Release internal pressure through a dedicated one-way valve.
- 10 metal models
- IP68
- Aluminium / 304 stainless steel
Select by opening pressure, tolerance and metric thread.
Opening pressure is model-specific; see all 10 model rows.
Explore models
Breather & Pressure Relief Valves
Combine everyday membrane breathing with pressure-actuated gas release.
- 8 threaded models + F550 PRV
- IP67
- e-PTFE membrane
Threaded models: 4–15 kPa opening-pressure range; minimum airflow varies from 800 to 3,000 mL/min at 70 mbar.
F550 battery pack PRV: a separate PP+GF30 configuration with a stainless steel cover.
Explore modelsThreaded or snap-on.
Start with the enclosure.
Two mounting forms. Different installation requirements.
Threaded vent plugs
Choose the exact thread form and pitch, then check thread engagement, head clearance and the sealing interface.
Metric, G and NPT availability varies by series.
Compare threaded seriesSnap-on vent valves
K01, K02 and K03 use a PA66 body with snap-fit retention. Match the mating opening and panel thickness to the installation drawing.
Silicone O-ring · listed IP67 protection
Compare K-series dimensionsChoose by function
| Product type | Primary function | Key selection criteria | Gamme |
|---|---|---|---|
| Breather vent plugs | Routine enclosure pressure equalisation | Airflow at a stated pressure, material and mounting interface | Threaded & snap-on vents |
| One-way pressure relief valves | Release internal pressure at the specified threshold | Opening pressure and tolerance, thread and body material | 10 metal models |
| Breather & pressure relief valves | Membrane breathing plus pressure-actuated relief | Normal airflow, relief threshold and mounting thread | 8 threaded models |
| F550 battery pack PRV | Battery-box pressure balancing and abnormal gas release | Battery-box interface, pressure specification and operating conditions | MS-FBFSL-F550 |
Select the exact model for its rated conditions. Pressure relief does not establish explosion-proof certification or the safety rating of the complete enclosure.
Bring us your enclosure requirements.
Start with the material, mounting interface and airflow you need.
Specify the vent.
Validate the enclosure.
Thread size alone does not determine a suitable vent. Send the mounting details and operating conditions together.
Prepare your specificationMatch the mounting interface
Thread form, pitch, engagement and clearance; or the snap-in opening, panel thickness and retention requirements.
State airflow with its test pressure
Compare values at the same pressure differential. These catalogue figures use 70 mbar; they do not define enclosure equalization time.
Confirm material and exposure
Share temperature, washdown, chemicals and outdoor exposure. Request the required metal grade, membrane and seal specification.
Review a sample assembly
Confirm installation torque, sealing surfaces and the applicable ingress test before approving the enclosure design.
Questions before
you specify.
Is a vent plug the same as a cable gland?
No. A cable gland provides a cable entry and sealing interface. A vent plug provides a ventilation path through a separate enclosure opening; it is not a cable entry.
Does every series have the same IP rating?
No. The current PA66 threaded and snap-on listings state IP67. The metal listings state IP68. The rating of a component does not automatically establish the rating of the completed enclosure. Ask for model-specific test conditions.
Can I select a vent from enclosure volume alone?
Not reliably. Selection also needs the pressure-change requirement, temperature profile, leakage paths, available mounting position and the vent’s airflow characteristics. Provide these details for a technical review.
Why do some thread sizes appear more than once?
The same printed thread can have different overall lengths, thread lengths or airflow values. For example, the plastic M12 × 1.5-10 entries differ. Include the complete dimension row when ordering.
What information is needed for a quotation?
Send the series or model, material, thread or snap-fit dimensions, required airflow and pressure, application conditions, quantity and delivery destination. Include a drawing where available.