LMK Technologies - Breaking New Ground without Breaking Any Ground

The T-Liner® Shorty is a one-piece cured in-place main and lateral liner. It is installed through the mainline pipe and is accomplished without any excavation. The liner is loaded inside of a unique hose launching device. The liner inside the hose launcher is inserted into the main pipe through the manhole, and pulled to the desired lateral connection. The lining is robotically positioned using two CCTV cameras mounted on the launching device (one on each side of the lateral liner). Once positioned, air pressure is applied and the main portion is inflated also inverting the lateral liner into the existing pipe up to 3-feet. No cleanout is required to install T-Liner® Shorty making ease of installation attractive for municipalities and contractors.

The Shorty is designed to renew laterals up to 3 -feet. Shorty structurally renews and seals the main/lateral connection where most infiltration and inflow occurs.

T-Liner® Shorty works with main pipe sizes ranging from 5.5-inches to 24-inches in diameter.

Shorty works with lateral pipe sizes ranging from 3 to 8-inches.

The liner wall thickness is 3mm (1/8") for a 4" pipe leaving a pipe diameter of 3.75", and the liner wall thickness 4.5mm for a 6" pipe leaving a pipe diameter of 5.625".

Typically, the flow rate is increased even though the inner diameter has been slightly reduced.

Yes. The Shorty is manufactured in either a Tee shape or a WYE.

There is no cutting required since the liner is open-ended. The liner and bladder are inverted simultaneously as a liner bladder assembly. The bladder is longer than the liner so that when the liner is fully inverted the bladder continues to invert at least another 12 -inches beyond the end of the liner so the liner cures open-ended.

Shorty uses a patented vacuum impregnation system. The bladder is translucent and the liner is inside of the bladder forming a liner/bladder assembly. The resin is added to the liner and vacuum impregnated. Since the bladder is translucent, workers and the project inspector can visually verify the liner is thoroughly saturated with no dry spots.

Typically two hours ambient cure or 30 -minutes to steam cure.

4-6 Shorties can be installed by a knowledgeable crew.

Sometimes liners stick and sometimes they do not. How do you verify the bond between the liner and the host pipe? No one can tell how well the liner is stuck to the pipe. F.O.G. (Fats, Oils, and Grease) in sewer pipes have a negative effect on adhesion. Some sewer pipes are made of polyethylene, and even some CIPP mainline linings have an inner polyethylene (PE) or polypropylene (PP) coating. What sticks to polyethylene or polypropylene? NOT MUCH!

The T-Liner® Shorty is a full circle sleeve that fits tight against the old pipe with extra resin that migrates and mechanically anchors the liner into the existing pipe open joints, fractures, and other defects. However, since adhesion cannot be verified and some pipe or pipelining materials resist adhesion, the T-Liner® Shorty system incorporates four hydrophilic O-rings (2 on each side of the lateral connection) as part of a uniquely designed compression gasket sealing system. The O-rings are embedded between the existing pipe and the new liner. The O-rings swell in the presence of water providing a compression seal that is compatible with all pipe types.

Yes. The Shorty is a water tight and root tight new cured in-place pipe.

Yes. A variety of thermo-set resin systems are available based on chemicals and temperature of the effluent. LMK has an engineering staff that will design the liner specifically for your project. Shorty has been tested in accordance with ASTM D5813, D790, D2990, F1216-06, and F2561-09.

LMK offers a variety of resin systems to be used in conjunction with our products. We carry a silicate resin, a polyester resin, an epoxy resin, and a styrene free non VOC vinyl ester resin. The silicate and epoxy resins have a very low odor. Each resin system is formulated to work with our different liner materials and depends on the curing process and seasonal temperature according to our state of the art design guide.

The T-Liner® Shorty has an engineered service of 50 -years based on ASTM F1216-09. The service life is based on extrapolation of testing data of the liner's physical properties.

Shorty has an 18 -inch long full circle structural connection in the main pipe, vs. a hat configured liner with a small collar or flange.

Shorty, being a cylinder shape, stands alone in a pipe and does not rely solely on adhesion and allows engineers to design its structural capabilities for withstanding soil loading and hydrostatic pressures, vs. hat designed liners do not stand alone, rather it is designed to cling or hang on the main pipe by a gluing effect. Engineered design calculations are based on flexural calculations and do not include gluing a collar, especially to greasy pipes or polyethylene pipes.

Yes, but you will know a real T-Liner® Shorty by the following features:

• One-piece main/lateral connection extending up the lateral 3 feet
• Lateral Identification marking the liner with the building address per ASTM F2561-09
• Compression gasket sealing technology using 4 hydrophilic O-rings
• 18 -inch main liner is connected and thermally welded to the lateral tube.
• Compressible ends form a smooth tapered transition at all three terminating points of the main/lateral CIPP
• A liner/bladder assembly where the lining is resin saturated within a translucent bladder

Every T-Liner® manufactured by LMK is subjected to a 27 -point QA/QC program including air testing of the liner tube. Knockoff systems are 2 pieces and they rely on resin to glue or bond the two liners into one. These types of linings cannot be air tested prior to installation.