HLS ATEX Type U Stopping Plugs – Nickel Plated Brass & Stainless Steel

The Type U Stopping Plugs are ATEX and IECEx certified sealing solutions designed to safely close unused cable gland or conduit entries in hazardous area enclosures. Engineered for use in Zone 1, Zone 21, and Class I Division 1 environments, these plugs maintain explosion protection integrity while preventing ingress of dust, moisture, and contaminants in critical industrial installations.

Built for reliability in harsh conditions, these stopping plugs are available in Nickel Plated Brass and 316 Stainless Steel, offering excellent corrosion resistance and durability. Designed with external socket installation and optional O-ring sealing, they ensure IP66/IP68 protection and are suitable for extreme temperature ranges. Ideal for oil & gas, chemical plants, and heavy industry where safety compliance and long-term performance are essential.

Key Features:

✅ ATEX & IECEx Certified – Ex d IIC Gb, Ex e IIC Gb, Ex tb IIIC Db
✅ Suitable for Zone 1/21 and Class I Division 1 hazardous areas
✅ IP66 / IP68 & NEMA 4X protection against dust and water ingress
✅ Available in Nickel Plated Brass and 316 Stainless Steel
✅ Wide temperature range: up to +150°C (NPB) and +850°C (SS)
✅ Nitrile or Silicone O-ring sealing options
✅ External socket design for easy installation
✅ Compatible with metric and NPT thread systems
✅ Maintains enclosure certification and explosion protection integrity

📦 Package Options:

🔹 1 Unit: Individual stopping plug for replacement or single installations
🔹 Box Packs: Available depending on SKU (20 or 25 units per box)

ATEX Type U Stopping Plugs Technical Specifications:

Feature	Details
Product Type	Stopping Plug (Cable Entry Sealing)
Material Options	Nickel Plated Brass (NPB), 316 Stainless Steel (SS)
Temperature Range	NPB: -100°C to +150°C / SS: -100°C to +850°C
Certifications	ATEX, IECEx, Class I Div 1, Class II, Class III
ATEX Rating	Ex d IIC Gb, Ex e IIC Gb, Ex tb IIIC Db
Ingress Protection	IP66 / IP68 (with O-ring), IP54 (without)
NEMA Rating	NEMA 4X
Thread Types	Metric, NPT (varies by SKU)
O-Ring Material	Nitrile (Standard), Silicone optional
Impact Resistance	7 Nm
Applications	Sealing unused cable gland and conduit entries
Mounting Requirement	L1 Locknut required for Exe installations
Compliance Standards	IEC/EN 60079 series, UL1203, UL514B, UL50, CSA standards
Packaging Options	1 Unit or Box (20 or 25 units depending on SKU)

Certifications & Compliance:

🔗 ATEX (2014/34/EU) – Explosion protection for EU hazardous areas
🔗 IECEx – compliance for explosive atmospheres
🔗 Class I Division 1 – Approved for gas hazardous locations
🔗 IP66/IP68 – Protection against dust ingress and water immersion
🔗 Download Datasheet

Applications of ATEX Type U Stopping Plugs:

🔹 Oil & Gas
🔹 Chemical Plants
🔹 Mining
🔹 Industrial Processing
🔹 Hazardous Area Enclosures

What’s in the Box?

📦 1x Stopping Plug
📦 1x O-Ring (pre-installed where applicable)
📦 1x Documentation Kit

Ordering & Shipping Details

📦 Lead Time: 2–4 weeks (typical)
📍 Shipping Terms: Worldwide / Expedited Options
💳 Payment Options: Credit Card, PayPal, Net 30 Terms

FAQs:

What are stopping plugs used for?
They seal unused cable entries in hazardous area enclosures to maintain explosion protection.

Are these plugs certified for hazardous areas?
Yes, they are ATEX, IECEx, and Class I Division 1 certified.

What materials are available?
Nickel Plated Brass and 316 Stainless Steel.

Do they provide waterproof protection?
Yes, up to IP66/IP68 when installed with O-ring or sealant.