Swivel Joint

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Features of Swivel Joint

NLS swivel joint permits 360 degree rotation allowing smooth flow radii for minimum flow restriction, and enables the piping to be configured in any directions as required.
Especially for cryogenic use such as LNG, LN2 or refrigerated ethylene, NLS swivel joint features safe and reliable performance. Also, NLS swivel joint is widely used for various applications including food industry, sanitary use as well as architecture.

  • 1. Permit 360 degree rotation consisting of several ball bearings.
  • 2. Enable high mechanical strength and smooth swiveling with several ball bearings at rotating part.
  • 3. The packing for inner pressure prevents liquid leakage assuredly and make performance with low friction.
  • 4. For low pressure, high pressure, extra high pressure and high temperature types are available for your selection.
  • 5. Total 8 types of basic swivel joint by the conbination of rotating parts and elbows permit 360 degree rotation and any movements.
  • 6. Material of swivel joint body and packing can be selected for purpose of use.

Low Pressure
The NLS Low pressure swivel joint have been applied very widely for various kinds of industries.

Low Pressure : Green (G)

Max. Press.
Test
Max. Press.
NSCW
MPa
Nominal
Dia
(NPS)
Material Max. Temp.
(℃)
End
Connections
4.1
2.1
10A (3/8B) to 100A (4B) FCD500 -0 to +125 Rc

Low Pressure : Blue (B)

Max. Press.
Test
Max. Press.
NSCW
MPa
Nominal
Dia
(NPS)
Material Max. Temp.
(℃)
End
Connections
6.9
3.4
10A (3/8B) to 80A (3B) S30C / S40C -10 to +200 Rc   BE/BO   FL
100A (4B) AISI1040 ↓      ↓      ↓
150A (6B) to 300A (12B) S40C          ↓      ↓

Low Pressure : Stainless (SST)

Max. Press.
Test
Max. Press.
NSCW
MPa
Nominal
Dia
(NPS)
Material Max. Temp.
(℃)
End
Connections
4.1
2.1
10A (3/8B) to 50A (2B) SUS316 -50 to +200 Rc   BE/BO   FL
65A (2-1/2B) to 200A (8B)        ↓      ↓

Low Pressure : Double-Seal Type (BD) / New Double-Seal Type (BDR)

Double-Seal Type (BD)

NLS double-seal type swivel joint is mainly used for drain piping system for floating roof tank, which has special double-seal construction in order to withstand external pressure, and has stainless steel overlaid sealing surface.

New Double-Seal Type (BDR)

New double-seal type swivel joint series has been developed to provide long term usage, which is use of improved material compound for double-seal for external seal, and the double main packing to assure complete leak tight. The stainless steel overlaying has been extended to improve anti-corrosion functions.

Max. Press.
Test
Max. Press.
NSCW
MPa
Nominal
Dia
(NPS)
Material Max. Temp.
(℃)
End
Connections
6.8
3.4
65A (2-1/2B) to 300A (12B) S40C -10 to +125 FL

High Pressure / Super High Pressure / Super High Pressure Balance
The NLS high pressure swivel joints are used in great variety of industries, not only hydraulic, pneumatic and refrigeration lines, and quake, swing lines but also absorption of pipeline deformation.

High Pressure : Silver (S) / (SN)

Silver (S)

Max. Press.
Test
Max. Press.
NSCW
MPa
Nominal
Dia
(NPS)
Material Max. Temp.
(℃)
End
Connections
41.2
20.6
10A (3/8B) to 50A (2B) S40C -10 to +200 Rc BE/BO FL
20.6
10.3
32A (1-1/4B) to 65A (2-1/2B)

Silver (SN)

Max. Press.
Test
Max. Press.
NSCW
MPa
Nominal
Dia
(NPS)
Material Max. Temp.
(℃)
End
Connections
20.6
10.3
80A (3B)
100A (4B)
S40C -10 to +200   BE FL

Super High Pressure : Orange (SH)

Max. Press.
Test
Max. Press.
NSCW
MPa
Nominal
Dia
(NPS)
Material Max. Temp.
(℃)
End
Connections
68.6
34.3
10A (3/8B) to 50A (2B) S40C -10 to +125 Rc BE FL
41.2
20.6
65A (2-1/2B) to 125A (5B)  

Super High Pressure Balance

NSB

Max. Press.
Test
Max. Press.
NSCW
MPa
Nominal
Dia
(NPS)
Material Max. Temp.
(℃)
End
Connections
58.8
39.2
25A (1B) to 100A (4B) S40C -10 to +125   BE FL

Sanitary
The NLS sanitary swivel joint enables liquid to run through smoothly and prevents liquid pool. It has a structure which enable disassebly and cleaning easily and it is best used in your sanitary lines. It could provide long life to your piping lines since it follows pipe line movement smoothly.

Sanitary (NS)

Max. Press.
Test
Max. Press.
NSCW
MPa
Nominal
Dia
(NPS)
Material Max. Temp.
(℃)
End
Connections
Packing
1.5
1.0
1S to 4S SUS316 -10 to +150 ISO (IDF) PTFE + Silicone Rubber

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