LK16 Interlok

Product Information

Specifications

Product Usage Instructions

Attaching Coupler to Rebar

Determine whether the coupler is the correct size for the bars
being spliced. Each coupler is identified with the bar size and
part number (refer to the specifications table above). Remove the
internal thread protector if installed.

Remove the bar end thread protector. Examine the tapered
threaded bar end to make sure it is clean and not damaged. If
cleaning is required, use a wire brush. Install the coupler until
hand tight, approximately 4.5 turns clockwise.

To complete the installation, hold the rebar stationary and
tighten the coupler according to the torque values specified in
Table 1.

Attachment to the Form

Follow the instructions provided with LENTON INTERLOK Form
Mounting Fixtures to attach the coupler to the form. It is
important to tighten the Form Mounting Fixture properly so that the
urethane grommet is expanded enough to firmly secure the coupler to
the form and prevent concrete slurry from entering the coupler
grout cavity during the pour.

Gravity Fill Applications

(Grout tubes NOT required)

Ensure the coupler grout ports are permanently plugged and
sealed to prevent concrete slurry from entering the coupler grout
cavity. Place the coupler as required.

FAQ

Q: What is the purpose of the internal thread protector?

A: The internal thread protector is used to protect the threads
of the coupler during storage and transportation. It should be
removed before attaching the coupler to the rebar.

Q: Can I use SNUG Tight installation for all bar sizes?

A: SNUG Tight installation (>5 ft-lbs) may be used with ASTM
A615 or A706 Grade 60 and Grade 80 rebar for commercial projects
when splice performance requirements are limited to only ACI 318
Type 1 (125% Specified Yield) or Type 2 (Specified Tensile), or
when otherwise approved by the project. Additional steps may be
necessary to secure the product for transportation and
handling.

Q: Are there any safety precautions I should follow?

A: All governing codes and regulations, as well as those
required by the job site, must be observed. Always use appropriate
safety equipment such as eye protection, hard hat, and gloves as
appropriate to the application.

Q: Where can I find more detailed instructions?

A: Refer to the LENTON INTERLOK User’s manual IP8419 for more
detailed instructions.

nVent LENTON Installation Instructions INTERLOK ­ Americas

Attaching Coupler to Rebar Determine whether the coupler is the correct size for the bars being spliced. Each coupler is identified with the bar size and part number (see Table 1). Remove internal thread protector if installed.

Remove the bar end thread protector. Examine tapered threaded bar end to make sure it is clean and not damaged. If cleaning is required, a wire brush should be used. Install coupler until hand tight, approximately 41/2 turns clockwise.

To complete installation, hold rebar stationary and tighten the coupler per table 1.

LENTON INTERLOK couplers are fastened to the rebar using a

LENTON Tapered Threaded Bar End and placed into a pre-cast form.

The LENTON INTERLOCK splice is completed at the jobsite by

inserting the exposed dowels of an adjoining pre-cast member

into the coupler grout cavities and filling with LENTON INTERLOK

HY15LM Grout.

Table 1

INTERLOK Coupler COUPLER Article

OPTIMAL TORQUE1

in-lb Metric Canada NUMBER

No.

ft-lb

Nm

5

16mm

15M

LK16**

—

90

120

5

16mm

15M

LK5

145575

90

120

6

20mm

20M

LK20**

—

120

180

6

20mm

20M

LK6

145580

120

180

Attachment to the Form: Follow the instructions provided with LENTON INTERLOK Form Mounting Fixtures. It is important that the Form Mounting Fixture is tightened properly so that the urethane grommet is expanded enough to firmly secure the coupler to the form and prevent concrete slurry from entering the coupler grout cavity during the pour.
Gravity Fill Applications: (grout tubes NOT required)
Ensure coupler grout ports are permanently plugged and sealed to prevent concrete slurry from entering coupler grout cavity. Place coupler as required.

7

22mm

—

LK7

145585

160

220

8

25mm

25M

LK25

—

200

270

8

25mm

25M

LK8

145590

200

270

9

28mm

30M

LK9

145595

200

270

10

32mm

—

LK10

145600

200*

300

11

36mm

35M

LK36

—

200

270

11

36mm

35M

LK11

145605

200*

300

38mm

LK12

—

200

270

—

40mm

—

LK40

—

200*

350

SNUG Tight Installation Instructions: SNUG Tight installation (>5 ft-lbs) may be used with ASTM A615 or A706 Grade 60 and Grade 80 rebar for commercial projects when splice performance requirements are limited to only ACI 318 Type 1 (125% Specified Yield) or Type 2 (Specified Tensile), or when otherwise approved by the project. Additional steps may be necessary to secure product for transportation and handling.

14

43mm

45M

LKT14

145611

200*

350

—

50mm

—

LKT50

—

200*

350

18

57mm

55M

LKT18

145620

200*

350

*Americas Only

Note 1: Refer to “SNUG Tight Installation Instruction in this document”

NOTE! Reference LENTON INTERLOK User’s manual IP8419 for more detailed instructions.

WARNING:
1. nVent products shall be installed and used only as indicated in nVent product instruction sheets and training materials. Instruction sheets are available at www.nVent.com and from your nVent customer service representative. 2. nVent products must never be used for a purpose other than the purpose for which they were designed or in a manner that exceeds specified load ratings. 3. All instructions must be completely followed to ensure proper and safe installation and performance. 4. Improper installation, misuse, misapplication, or other, failure to completely follow nVent’s instructions and warnings may cause product malfunction, property damage, serious bodily injury, and/or death, and void your warranty.

The customer is responsible for: a. Conformance to all governing codes. b. The integrity of structures to which the products are attached, including their capability of safely accepting the loads imposed, as evaluated by a qualified engineer. c. Using appropriate industry standard hardware as noted above.

SAFETY INSTRUCTIONS: All governing codes and regulations and those required by the job site must be observed. Always use appropriate safety equipment such as eye protection, hard hat, and gloves as appropriate to the application.

nVent, nVent CADDY, nVent ERICO Cadweld, nVent ERICO Critec, nVent ERICO, nVent EIRFLEX, and nVent LENTON are registered trademarks of nVent or its global affiliates. All other trademarks are the property of their respective owners. nVent reserves the right to change specifications without prior notice.

TECHNICAL SUPPORT: www.nVent.com

IPNALK01

1 of 2

© 2010-2023 nVent All Rights Reserved

Pump Fill Applications (grout tubes required): Place coupler as required. Ensure that grout ports are properly sized, positioned and cut to adequate length. Secure coupler and grout tubes to prevent movement before or during the pour.

NOTE! It is recommended that grout tube lengths be kept to a minimum to ease job site installation of LENTON INTERLOK HY15LM grout. Slight bending of PVC tubing may be required to ensure proper installation of grout tubes. Temporarily plug access to grout tubes to prevent debris from obstruction placement of grout at job site.
DOWEL LENGTHS and INSPECTION: Check required dowel lengths (ref. #IP8419 LENTON INTERLOCK User’s manual). Dowel lengths may need to be longer due to sealing (bedding) mortar requirements for the project. Check project plans and ensure dowel lengths have adequate lengths.
POURING OF CONCRETE INTO FORMS: Ensure all requirements of project plans are complete. When pouring concrete, make sure not to disturb placement of grout tubes.
REMOVAL OF FORMS AND COUPLER INSPECTION: Remove all LENTON INTERLOK Form Mounting Fixtures and formwork. Remove temporary plugs at end of grout tubes and inspect to ensure tubes are clear and free of any obstructions that would inhibit the flow of grout to the coupler grout cavity. Check coupler grout cavities and remove any existing concrete slurry, etc. Re-install temporary plugs in grout tubes and coupler grout cavities so as to provide protection from debris during storage, transit to job site, etc. These should be removed when pre-cast member is ready to be
installed at job site.

NOTE! Ref. LENTON INTERLOK User’s manual #IP8419 for completed instructions.

nVent, nVent CADDY, nVent ERICO Cadweld, nVent ERICO Critec, nVent ERICO, nVent EIRFLEX, and nVent LENTON are registered trademarks of nVent or its global affiliates. All other trademarks are the property of their respective owners. nVent reserves the right to change specifications without prior notice.

TECHNICAL SUPPORT: www.nVent.com

IPNALK01

2 of 2

© 2010-2023 nVent All Rights Reserved

References

• Building a more Sustainable and Electrified World | nVent
• Building a more Sustainable and Electrified World | nVent

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