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One-Piece Flange Coupler for Nuclear Applications


One-piece flange couplers are ideal for eliminating protruding dowel bars in segmental pour applications. The flange side of the coupler is typically tack or seal welded to cast-in-place structural steel walls commonly found in most modern nuclear reactor designs.

The nuclear industry demands scrutiny throughout the entire product life-cycle. nVent LENTON products produced under nVent’s nuclear quality systems receive the utmost attention to detail and can meet the high demands of the nuclear industry. These quality systems are designed to include compliance to ASME® NCA-3800 (ERICO - QSC 595), NQA-1, 10CFR50 Appendix B, 10CFR 50.55(e), 10CFR Part 21 and USNRC Regulatory Guide 1.28. nVent LENTON products produced for nuclear applications are assigned unique part numbers to ensure detailed product documentation and full product traceability in accordance with demanding industry expectations.


  • Designed to splice the same diameter bars where the second bar can be rotated and is not restricted in its axial direction
  • Tack welding allows the coupler to be used for positioning of a bent bar on the first bar
  • Installs quickly and easily


Part Number EL25SAQSP004
Material Steel
Finish Plain
100% U.S. Domestic Content Yes
Rebar Size, Metric 25 mm
Rebar Size, US #8
Rebar Size, Canada 25M
Diameter 1 (Ø1) 1.97"
Diameter 2 (Ø2) 1.38"
Length 1 (L1) 3.34"
Length 2 (L2) 2.71"
Bar Depth (BD) 1.36"
Bar Gap (BG) 0.63"
Unit Weight 1.1 lb
Designed to Meet AASHTO
ABNT NBR 8548:1984
ACI 318 Type 1 (125% Specified Yield)
ACI 318 Type 2 (Specified Ultimate)
ACI 349
ACI 359
CAN/CSA - N287.2/.3/.4
IBC Type 1 (125% Specified Yield)
IBC Type 2 (Specified Ultimate)
US Army Corps of Engineers
Standard Packaging Quantity 40 pc
UPC 78285665236
Coupler sizes not shown may be available by special order. Contact your nVent LENTON representative for more information.

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