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Hexagonal Nut RJT-13H

The RJT-13H Hexagonal Nut is a high‑quality sanitary union nut designed for RJT (Reinforced Joint Tube) standard fittings. This hex nut serves as the critical fastening component in an RJT union connection, enabling quick assembly and disassembly of sanitary piping systems without tools. Commonly used in dairy processing, food and beverage production, pharmaceutical manufacturing, and biotechnology, the RJT-13H ensures a reliable, hygienic seal when tightened over the RJT union gasket.
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Key Features

  • Hexagonal External Shape – Six‑sided design allows for easy tightening with standard wrenches or spanners, providing optimal torque transmission

  • RJT Standard Compliance – Manufactured to exact RJT (Reinforced Joint Tube) dimensional and thread specifications, ensuring full compatibility with RJT union fittings

  • Precision Internal Threads – Machined to tight tolerances for smooth, consistent engagement with RJT male threads, preventing cross‑threading and ensuring leak‑free connections

  • Hygienic Design – Smooth exterior surface with no crevices or sharp edges, minimizing bacterial accumulation and facilitating easy cleaning

  • High Corrosion Resistance – Available in 304 and 316L stainless steel, offering durability in aggressive process environments

  • Wide Size Range – Available for all standard RJT pipe sizes (typically DN 25 to DN 100)

  • Full Traceability – Supplied with material test reports for complete quality documentation

Key Advantages

  • Reliable Sealing – When properly torqued, the RJT-13H nut compresses the gasket evenly, creating a leak‑proof, sanitary seal that withstands high pressures and temperatures

  • Quick Assembly & Disassembly – Simple nut‑and‑thread design enables rapid connection and disconnection for maintenance, cleaning, and line changes without special tools

  • Durable Construction – Stainless steel ensures long service life under repeated tightening cycles and exposure to cleaning agents

  • Versatile Compatibility – Standard RJT dimensions ensure interchangeability with all RJT sanitary fittings from various manufacturers

  • Easy Maintenance – Hexagonal profile allows for visual torque control and easy handling even in tight spaces

  • CIP/SIP Compatible – The nut’s smooth, crevice‑free surface supports Clean‑In‑Place and Sterilize‑In‑Place procedures without removal

How It Works

The RJT-13H Hexagonal Nut operates as the tightening mechanism within an RJT sanitary union:

  1. Positioning – The nut is placed over the RJT male adapter (welding male or union end) on one side of the connection

  2. Gasket Placement – A sanitary RJT gasket (typically EPDM, silicone, or PTFE) is positioned between the two sealing faces

  3. Thread Engagement – The nut’s internal threads are screwed onto the external threads of the mating RJT female adapter

  4. Tightening – Using a standard wrench on the hexagonal surfaces, the nut is tightened to the recommended torque, compressing the gasket between the two faces

  5. Seal Formation – The compression creates a uniform, leak‑proof seal that prevents product contamination and maintains system integrity

  6. Disassembly – Loosening the nut allows for quick separation of the joint for cleaning, inspection, or process changes

This simple yet effective mechanism combines the security of a threaded connection with the flexibility of a union design.

Why Choose Us

  • Certified Quality – All our RJT-13H Hexagonal Nuts are 3A Sanitary Standards certified, meeting the highest requirements for dairy and food processing equipment. We also hold CE certification and ISO 9001 quality management system certification, ensuring consistent product excellence

  • Premium Materials – We use only high‑grade 304 and 316L stainless steel from certified mills, offering exceptional corrosion resistance and mechanical strength

  • Precision Machining – Every nut is manufactured to strict RJT tolerances with accurately cut threads and a smooth surface finish, ensuring reliable engagement and sealing

  • Stringent Quality Control – Each nut undergoes dimensional inspection, thread gauge testing, material verification, and surface finish checks to ensure 100% compliance

  • Extensive Size Offering – We cover all standard RJT sizes (DN 25, 32, 40, 50, 65, 80, 100) to meet your system requirements

  • Full Traceability – Every nut is supplied with EN 10204 3.1 material test reports and traceable documentation for audit compliance

  • Competitive Pricing – Direct manufacturing allows us to offer factory‑direct pricing without compromising quality

  • Expert Support – Our team of sanitary fitting specialists provides technical guidance on torque specifications, gasket selection, and installation best practices

  • Reliable Supply Chain – Consistent inventory and fast shipping ensure your projects and production lines stay on schedule

  • Custom Options Available – We can accommodate special sizes, specific surface finishes, or custom marking upon request

Conform to AS 1528.3
For Tubes acc. to AS 1528.1
Max.Pressure: PN10
Max. Temperature: 250° F, except hose fittings are unrated.
Available with WAZ 3.1 in accordance with EN 10204

Wenzhou KASIN valve pipe fitting co.,ltd.

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CONTACT INFORMATION

If you have any questions or need help, feel free to contact with our team. We are available 24/7 by fax, 
e-mail or by phone. 
   valve@wzststeel.com
   +86-15858536788/+-86-577-86896059
  Binhai Industry Zone, Wenzhou, Zhejiang, China

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