Malleable Cap Fittings

Product Overview

Malleable Caps are threaded fittings designed to seal the ends of pipes, tubes, or fittings, providing secure, leak-free closure and protecting piping systems from contamination, pressure loss, and mechanical damage.

Manufactured from high-quality malleable iron and produced according to EN 10242, ISO 49, ASTM A197, BS 143 / 1256, and GOST standards, these caps combine strength, ductility, and corrosion resistance for long-term reliability in industrial pipelines.

Available in multiple sizes and finishes, Malleable Caps are suitable for both temporary and permanent sealing applications across water, gas, oil, and industrial piping systems.

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Key Features & Advantages

Reliable Leak-Free Sealing

Precision-machined internal threads ensure tight engagement with mating components, delivering secure, leak-proof closure.

High Mechanical Strength

Forged malleable iron construction resists internal pressure, vibration, and mechanical stress, ensuring durability under demanding conditions.

Easy Installation

Threaded design allows fast installation and removal using standard tools without welding, making maintenance and retrofitting simple.

Corrosion Resistance

Black, galvanized, or zinc-plated coatings protect against corrosion for indoor and outdoor use.

Versatile Application

Suitable for pipelines requiring temporary closure, future system expansion points, or protection of unused outlets.

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Materials & Manufacturing

• Malleable Iron (ASTM A197 / EN 10242)

• Forged or cast with heat treatment for superior ductility

• CNC machining for precise thread fit

• Dimensional and visual inspection ensures seal integrity

Certificates available on request (EN 10204 3.1), with third-party inspection (SGS / BV / TUV) optional.

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Standards & Threads

Manufactured according to:

• EN 10242 / ISO 49 – Malleable iron threaded fittings

• ASTM A197 / BS 143 / 1256 – Material and mechanical standards

• GOST 8949 / 6357 – Russian standards

Thread types:

• NPT

• BSP / BSPT

• Metric (custom sizes available)

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Applications

Malleable Caps are widely used in:

• Water supply and plumbing systems

• Gas and fuel pipelines

• Fire protection and sprinkler systems

• Compressed air systems

• HVAC and industrial piping

• Chemical and petrochemical plants

They are particularly suitable for:

• Sealing pipeline ends

• Temporary closure during maintenance

• System expansion or retrofit points

• Protection of unused outlets or ports

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Delivery & Customization

• Standard sizes in stock for fast shipping

• Custom thread types and dimensions available

• OEM branding and private label packaging

• Export-standard packaging for safe transportation

Technical support is available for proper selection and installation guidance.

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Why Choose Our Malleable Cap Fittings

• Compliance with international standards

• Reliable leak-free performance

• High mechanical strength and durability

• Easy installation and removal

• Competitive pricing and global shipping experience

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Request a Quote

For high-quality Malleable Cap fittings, please provide your required size, material grade, pressure rating, and thread type.
Our engineering team will provide professional technical advice and fast quotation support.