Unused cable entries
Close spare threaded holes in cabinets and equipment housings.
Enclosure Accessories / product groups
Plugs and vents for enclosure openings.
Seal unused openings with a screw plug. For airflow or pressure relief, choose a vent, a relief valve or a model that combines both functions.
- Sealing screw plugs
- Breathable vent plugs
- Pressure-relief valves
Enclosure Accessories product groups
Close an opening or let the enclosure breathe.
Sealing plugs close spare holes. Venting models let air pass, relief valves open at a set pressure, and combined models provide both functions.
Waterproof Vents & ValvesChoose venting only, pressure relief only, or combined venting and pressure relief for your enclosure.Choose venting, pressure relief or both, then compare mounting size and airflow or opening pressure.
Sealing Screw PlugsMetal and nylon plugs that close unused threaded holes in enclosures.Match the enclosure thread, then choose the head shape and sealing material.Selection guide
Does the opening need sealing, venting or pressure relief?
A vent and a sealing plug are not interchangeable. For a vent or valve, the airflow or opening-pressure requirement matters as much as the mounting size.
- 01
Function
Sealed closure, airflow or pressure relief
- 02
Mounting
Entry thread, hole diameter and wall thickness
- 03
Environment
Water, dust, temperature and enclosure material
Applications
Unused entries and enclosure pressure.
These accessories close spare holes or provide a path for air to enter or leave an enclosure.
Enclosures exposed to temperature changes
Use a vent to equalize pressure as the air inside the enclosure warms and cools.
Pressure relief
Use a valve where the enclosure needs a defined opening pressure or flow direction.
Product support
Need help choosing enclosure accessories?
Send a model name, a photo or a short question. We can help identify the part, discuss samples and prepare a quote.
Request Enclosure Accessories support- Entry thread or hole sizeShare the thread marking or opening diameter for the enclosure.
- Blanking or venting functionTell us whether the opening should be sealed, pressure-equalized or fitted with a relief valve.
- Enclosure material and wall thicknessInclude the enclosure material and wall thickness if known; a drawing or photo can help.
- Ingress and environmental dutyDescribe any water, dust, heat or chemical exposure, and any required ingress rating.
- Quantity and finishShare sample and production quantities if known, plus any preferred colour or finish.
Enclosure Accessories FAQ
Product selection questions
Find answers about the differences between product types and how to choose a model.
01What is the difference between a sealing plug and a vent plug?
A sealing plug closes an unused opening. A vent plug allows air to pass through a membrane or filter to equalize pressure.
02Is a breathable vent the same as a pressure-relief valve?
No. A vent provides airflow through its venting element. A pressure-relief valve opens in response to pressure; its opening pressure and flow direction are part of the selection.
03How do I size a screw plug?
Match the thread system, diameter and pitch to the enclosure entry. Then check the thread length, head clearance and sealing face.