Cryogenic Couplers
Cryogenic Couplers
The Ancon CTT range of tapered-thread couplers has been designed for use where cryogenic-grade reinforcing bar is being used. Typical construction projects include liquefied natural gas (LNG) and liquefied petroleum gas (LPG) storage tanks to EN 14620-3.
For full technical details download the Reinforcing Bar Couplers for Cryogenic Applications brochure.
Reinforcing Bar Couplers for Cryogenic Applications (PDF, 2.52 MB)
System Benefits
- Suitable for use in structures built in accordance with EN 14620-3
- Independently tested with cryogenic grade rebar at ambient and cryogenic (-168°C/-270°F) temperatures
- Compact coupler design, suitable for confined locations
- Tapered-thread design simplifies bar alignment and engagement without cross-threading
- Installed quickly and easily, accelerating build speed
Structures to EN 14620-3
Ancon CTT couplers are suitable for use in structures built in accordance with EN 14620-3:2006. This Standard specifies the general requirements for materials, design and construction of all concrete components of site-built, vertical, cylindrical, flat-bottomed steel tanks for the storage of refrigerated, liquefied gases with operating temperatures between 0°C and –165°C. BS EN 14620-3: 2006 supersedes BS 7777-3: 1993.
Cryogenic-grade Rebar
Krybar® is a specially-designed concrete reinforcing steel for cryogenic applications from ArcelorMittal. ‘KRYBAR -165’ is suitable for use in storage tanks with temperatures down to -170°C/-274°F and was the cryogenic-grade rebar used in the test programme undertaken by Leviat.
Standard Cryogenic Couplers (CTTS)
The standard Ancon tapered-thread cryogenic coupler is suitable for connecting two bars of the same diameter, where one bar can be rotated.
| Bar Diameter (mm) | 12 | 14 | 16 | 20 |
|---|---|---|---|---|
| Part No | CTTS12 | CTTS14 | CTTS16 | CTTS20 |
| Bar Diameter (mm) | 25 | 28 | 32 |
|---|---|---|---|
| Part No | CTTS25 | CTTS28 | CTTS32 |
Positional Cryogenic Couplers (CTTP)
The positional Ancon tapered-thread cryogenic coupler is designed for use where neither bar can be rotated. It comprises a male section, a female section and a locking nut. Having a degree of adjustability, this coupler can be used as a closer between two fixed bars.
| Bar Diameter (mm) | 12 | 14 | 16 | 20 |
|---|---|---|---|---|
| Part No | CTTP12 | CTTP14 | CTTP16 | CTTP20 |
| Bar Diameter (mm) | 25 | 28 | 32 |
|---|---|---|---|
| Part No | CTTP25 | CTTP28 | CTTP32 |
Transitional Cryogenic Couplers (CTTT)
The transitional Ancon tapered-thread cryogenic coupler is designed to join reinforcing bars of different diameters, where one bar can be rotated.
| Bar Diameter (mm) | 12/14 | 12/16 | 14/16 | 16/20 |
|---|---|---|---|---|
| Part No | CTTT12/14 | CTTT12/16 | CTTT14/16 | CTTT16/20 |
| Bar Diameter (mm) | 20/25 | 25/28 | 25/32 | 28/32 |
|---|---|---|---|---|
| Part No | CTTT20/25 | CTTT25/28 | CTTT25/32 | CTTT28/32 |
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