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The 1-1/4'' Internal Thread Type Clamp

Stock: In Stock
The 1-1/4'' Internal Thread Type Clamp (also known as a female threaded clamp) is engineered for secure, leak-proof, and long-lasting pipe and nozzle connections. With its internal (female) thread design, it ensures easy installation, strong grip, and precise alignment. Made from high-quality stainless steel (SS304/SS316) or optional carbon steel and brass, this clamp is resistant to corrosion, high pressure, and harsh chemicals, making it suitable for demanding industrial environments.
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Key Advantages

  • Leak-Proof Connection – Internal thread ensures a tight seal with male threaded fittings.

  • Fast & Easy Assembly – Compatible with both BSPP (G thread) and NPT (tapered thread) standards.

  • Durable Construction – Stainless steel body guarantees long service life under pressure and temperature fluctuations.

  • Versatile Usage – Ideal for spray nozzles, tank cleaning systems, extrusion cooling lines, and dust suppression.

  • Cost-Effective Maintenance – Simple disassembly and reassembly for servicing.


Technical Specifications

Feature Value
Thread Size 1-1/4'' Internal (Female)
Thread Standards BSPP (parallel) or NPT (tapered)
Material Options SS304, SS316, Brass, Carbon Steel
Pressure Range Typically 10–25 bar (application dependent)
Temperature Range −20 °C to +200 °C
Applications Spray nozzle systems, tank washing, cooling lines, dust suppression, extrusion

Thread Standards: BSPP vs NPT

  • BSPP (G Thread, parallel) – Uses flat gasket or O-ring for sealing; common in Europe and Asia.

  • NPT (tapered thread) – Seals by thread interference, requires PTFE tape or sealant; widely used in the USA.

Choosing the right thread type ensures compatibility and leak-free operation.


Material Options & Chemical Resistance

  • SS304 Stainless Steel – General-purpose, food & beverage safe.

  • SS316 Stainless Steel – Superior resistance to chlorides and harsh chemicals.

  • Brass – Suitable for water and mild chemicals; economical.

  • Carbon Steel – Cost-effective but requires protective coating.


Application Areas

  • Spray Nozzle Connections – Flat fan, hollow cone, and full cone nozzles.

  • Tank Cleaning Systems – Fixed and rotary spray heads.

  • Cooling & Washing Lines – Automotive, food processing, metal finishing.

  • Extrusion & Vacuum Sizing Tanks – Cooling water distribution.

  • Dust Control & Humidification – Industrial air quality management.


Installation Guidelines

  1. Verify thread standard (BSPP or NPT) before assembly.

  2. For NPT threads, use PTFE tape or liquid sealant.

  3. For BSPP threads, use a flat gasket or O-ring for sealing.

  4. Tighten by hand first, then use a wrench for 1–2 additional turns.

  5. Avoid over-torque to prevent thread damage.

  6. Perform leak testing before full operation.


Maintenance & Safety

  • Inspect threads and sealing elements regularly.

  • Replace O-rings or gaskets when worn.

  • Clean surfaces to prevent corrosion build-up.

  • Ensure chemical compatibility before use.

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