SUE-4

Stainless Steel Union Elbow – 1/4" Tube OD, 90° Compression Fitting

  • Model: SUE-4 (1/4" tube union elbow, 316 stainless steel)
  • Type: 90-Degree Union Elbow (tube-to-tube compression fitting)
  • Material: 316 Stainless Steel (corrosion-resistant alloy)
  • Pressure Rating: Suitable for sanitary and industrial pressure systems (based on tubing specs)
  • Size: 1/4" tube outer diameter (O.D.) x 1/4" tube O.D.
  • Finish: Polished, hygienic-grade surface
  • Equivalent To: Swagelok® SS-400-9
SKU: SUE-4 Category: Tag:
Specifications
Angle 90?
Inch/Metric Inch
Tube Outside Diameter D 1/4in, mm
Width Across Flats h 1/2in, mm
Dimensions
Dimension A 15.24mm
Dimension B 15.24mm
Dimension I 20.10mm
Dimension L 27.40mm
Dimension d [Min] 4.82mm
Description

Stainless Steel Union Elbow – 1/4" Tube OD, 90° Compression Fitting (SUE-4)

The SUE-4 is a compact 90-degree union elbow designed for 1/4" tubing in hygienic and high-purity systems. Made from 316 stainless steel, it delivers a tight seal and clean directional flow for Clean-in-Place (CIP) instrumentation and sanitary processing setups.

Its corrosion-resistant alloy body handles vibration, pressure, and aggressive cleaning cycles, making it a trusted choice for pharmaceutical, food-grade, and biotech applications. The union design allows for easy disassembly and reinstallation without compromising sealing integrity.

Ideal for tight layouts and Original Equipment Manufacturer (OEM) panels, the SUE-4 ensures dependable performance in fluid routing, instrumentation builds, and lab systems where cleanability and compliance are critical.

Key Benefits

  • Seal: Compression-style metal-to-metal seal — leak-tight with no added sealants
  • Durability: Handles pressure cycling, vibration, and repeated CIP operations
  • Maintenance: Fully reusable and easy to service
  • Compatibility: Integrates with 1/4" stainless tubing and instrumentation fittings
  • Material: 316 stainless steel supports high-purity and sanitary-grade applications

Typical Applications

  • Sanitary process skids
  • Clean-in-Place (CIP) instrumentation
  • Original Equipment Manufacturer (OEM) control panels
  • Hygienic valve assemblies
  • Lab fluid handling systems

Looking for a Swagelok® SS-400-9 alternative? The SUE-4 delivers reliable sealing, clean routing, and hygienic performance in a corrosion-resistant stainless steel package.

Compatibility
This part may be used in place of the following parts from other manufacturers:
Swagelok® 400-9
Parker (Alok)® 4EE4
Hy-Lok® CLA-4
Tylok (CBC-Lok)® 4-DELU-4
Ham-Let (Let-Lok)® 765L 1/4 X 1/4
Hoke (Gyrolok)® 4LU
Dk-Lok® DL-4
Bi-Lok (Series D)® DLA-4
SSP (DUlok)® D4UE