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Sanitary RJT Union
  • Sanitary RJT UnionSanitary RJT Union

Sanitary RJT Union

As a leading China manufacturer and supplier, VTY designs Sanitary RJT Unions specially for the dairy industry. The best part about our RJT unions is how easy they are to use: you can quickly tighten or loosen the hex nut with just a standard spanner.

The Sanitary RJT Union from VTY factory is used for frequently dismantled sections of pipework or hosing. It is a hygienic pipe fitting designed according to BS 4825 Part 5 standard, widely used in UK and European legacy piping systems.

It is specifically engineered for frequently dismantled pipeline sections, offering reliable sealing performance even when pipe alignment is not perfectly precise.

As a professional manufacturer of hygienic fluid equipment, VTY provides precision-engineered RJT unions widely applied in wineries, breweries, dairy processing, beverage production, and pharmaceutical systems.

This makes RJT unions an ideal solution for:

  • Upgrading existing European pipeline systems
  • Maintenance-friendly sanitary connections
  • CIP/SIP compatible hygienic pipelines

Key Advantages of VTY RJT Union

Designed for BS 4825 Part 5 compliant systems

Compatible with existing UK & EU RJT piping networks

Forgiving design for pipe misalignment in long pipeline systems

Suitable for frequent dismantling and maintenance

High hygiene surface finish for CIP/SIP cleaning systems


Sanitary RJT UnionSanitary RJT Union


Parameter Specification

·Size Range: 1’’-4’’

·Specification: BS 4825 Part 5 standard

·Mat: 304, 304L, 316L (forged)

·Seal: NBR, Silicone, EPDM, FPM, PTFE

·Roughness: Ra=0.4~0.8µm (internal), Ra≤1.6µm (external)


Quality InspectionQuality InspectionQuality Inspection


What is RJT Union Used For?

RJT (Ring Joint Type) unions are primarily used in UK and European hygienic pipeline systems, especially in older stainless steel installations.

Unlike clamp fittings, RJT unions allow:

  • Easier alignment tolerance
  • Strong mechanical sealing
  • Long-term durability in fixed pipeline systems

This makes them particularly suitable for system maintenance and retrofit projects in food and beverage plants.


Sanitary RJT UnionSanitary RJT UnionSanitary RJT Union


What is the lifespan and maintenance cost?

The lifespan of stainless steel Sanitary RJT Unions is comparatively long under normal use and regular maintenance. The lifespan can be several years and even longer. Maintenance costs mainly arise from the replacement of gaskets and surface polishing needed on occasion. The investment in sanitary unions is somewhat higher at the beginning, compared with other types of fittings. In the long run, since they can be dismantled and it have high durability, the overall cost of use is lower.

What should be noted for installation?

When installing Sanitary RJT Unions, ensure that the pipe end is flat and clean to avoid debris entering the connection area. Use a proper tool, like a wrench, to tighten the nuts. Do not tighten them with excessive force to protect seals and threaded parts. These unions are designed for quick dismantling, making them easy to clean and maintain.

Why Choose VTY RJT Union?

Wenzhou Tianyue Fluid Equipment Co., Ltd. (VTY) is a professional manufacturer specializing in hygienic fluid equipment, with:

  • 134 CNC machining centers (90% MAZAK Japan)
  • Full in-house polishing & testing laboratory
  • ISO 9001 / ISO14001 / ISO45001 certified system
  • Precision inspection: 3D CMM, roughness, hardness, spectrometer

Ensuring every RJT Union meets strict European hygienic standards and industrial reliability requirements.

Factory workshop productionworkshop productionFactory workshop



RJT-13R
Round Nut
Sanitary RJT Union
Size A B C H
1.0" 33.3  58.5  42.266×8TPI WHIT 22.2 
1.5" 46  74  54.966×8TPIWHIT 22.2 
2.0" 58.7  85.5  67.920×6TPIWHT 22.2 
2.5" 71.4  98.5  80.620×6TPIWHIT 22.2 
3.0" 84.1  111.6  93.320×6TPI WHIT 22.2 
4.0" 109.5  138  118.720×6TPI WHIT 22.2 
RJT-14
Welding Liner
Sanitary RJT Union
Size A B C H
1.0" 22.2  25.4  41.3  19.5 
1.5  34.9  38.1  54  19.5 
2.0" 47.6  50.8  66.7  19.5 
2.5" 60.3  63.5  79.4  19.5 
3.0" 73.0  76.2  92.1  19.5 
4.0" 97.6  101.6  117.5  19.5 
RJT-15
Welding Male
Sanitary RJT Union
Size A B C H
1.0" 22.2  25.4  45.72×8TPIWHIT 27 
1.5" 34.9  38.1  58.42×8TPIWHIT 27 
2.0" 47.6  50.8  72.72×6TPI WHIT 27 
2.5" 60.3  63.5  85.42×6TPI WHIT 27 
3.0" 73  76.2  98.12×6TPIWHIT 27 
4.0" 97.6  101.6  123.52×6TPI WHIT 27 
Seal Ring
Sanitary RJT Union
Size A B
1.0" 33.3  6.4 
1.5  46  6.4 
2.0" 58.7  6.4 
2.5" 71.4  6.4 
3.0" 84.1  6.4 
4.0" 109.5  6.4 
RJT-13RBN
Blank Nut with Boss
Sanitary RJT Union
Size A B H
1.0" 58.5  42.266×8TPI WHIT 29.2 
1.5" 74  54.966×8TPI WHIT 29.2 
2.0" 85.5  67.920×6TPI WHIT 29.2 
2.5" 98.5  80.620×6TPI WHIT 29.2 
3.0" 111.6  93.320×6TPI WHIT 29.2 
4.0" 138  118.720×6TPI WHIT 29.2 
RJT-13HBN
Hexagonal Blank Nut with Boss
Sanitary RJT Union
Size A B H SW
1.0" 42.266×8TPI WHIT 48.3  29.2  50.8 
1.5" 54.966×8TPI WHIT 53.3  29.2  65 
2.0" 67.920×6TPI WHIT 63.3  29.2  79.4 
2.5" 80.620×6TPI WHIT 73.3  29.2  92.1 
3.0" 93.320×6TPI WHIT 83.3  29.2  104.8 
4.0" 118.720×6TPI WHIT 104.2  29.2  130.2 



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Contact Info
Need custom hygienic fittings or valves for your project? Send inquiry to VTY. Get quick quote, technical support, and OEM solutions for food/pharma applications.
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