New! Insertion Valves for GAS Lines!
Take a look at Successful Field Trials of the EZ™ Valve-NG! The EZ™ Valve insertion valve system, originally designed for water, sewage and manufacturing use, has been adapted to provide a new valve solution for the gas distribution industry.
Barbados Waste Water Problem Solved Fast by AVT Crew
A 20-inch sewage line was in need of immediate attention. AVT prepped and tested an EZ™ Valve, shipped the equipment and crew 2,604 miles, and performed a one-day install (AVT’s part being only about five hours) to fix a major problem. This successful project was completed in a 10-day turn-around from the first call for help.
AVT Featured in Water and Wastes Digest
20" Installation in Texas
Successful 20" (500mm) EZ™ Valve installation for the U.S. Army at the Fort Bliss Military base in El Paso, Texas.
24" EZ™ Valve on Spiral Welded Pipe
Another successful 24" EZ™ Valve Installation, this time on Spiral Welded pipe in Wilson, North Carolina. Installation performed by GOC South.
EZ™ Valve is Now UL Certified!
As of November 7, 2014, the EZ™ Valve passed the UL testing and is now certified. This makes the EZ™ Valve the only insertion valve in the world to be UL listed and certified.
EZ™ Valve Compatible with A/C Pipe
Successful Asbestos Concrete (A/C) installation in Texas, adding yet another pipe material with which the EZ™ Valve works.
Challenging EZ™ Valve Installation
The need for a vertical EZ™ Valve installation calls for some creative thinking.
EZ™ Valve in Tasmania
12" (300 MM) EZ™ Valve install in Tasmania performed by AVT Australia.
Team Insert Valves - Don't Fall Into The Trap
Debris will tend to collect in a recess and render a valve useless over time. Experienced water professionals have recognized this design flaw for decades.
Thank You Hydra Tech Inc.!
AVT Would like to thank Hydra Tech Inc. for making the EZ™ Valve their insertion valve of choice for almost 550 successful installations! Here's to 550 more, guys.
14" (350mm) is Now on the Market. A New First for AVT and Hydra Tech!
An over 100 year old water main in Malden, Massachusetts gets the first - and second 14" (350mm) EZ™ Valve installations.
Historic Vacation Spots Have Water Emergencies Too
A water main on picturesque Mackinac Island needed emergency work and Advanced Valve Technology was given the task. There was something very special about this 10" (250mm) EZ™ Valve insertion valve project -- tools, crew, valve fittings and support components needed to step back in time and use the methods of a bygone era.
Record Breaking 24" (600mm) Installation
Advanced Valve Technologies, Inc. announces that we have recently installed 24” (600mm) EZ™ Valves on one of the main feeder lines for Ponca City, OK. All three installations were completed in 3 days - a new World Record for the installation of multiple, large range EZ™ Valve insertions.
Simple Fix Makes Steel Pipe Insertions Possible
This special sleeve is welded to a 16" (400mm) steel OD pipe to match the 17.40" OD of Ductile Iron pipes (442mm). The sleeve allows us to use our standard gaskets rather than having to create custom gaskets!
AVT at ACE!
Best by Design! AVT featured at ACE

Latest News!

AVT Performs EZ Valve Installations, Worldwide.
AVT Performs EZ Valve Installations, Worldwide.
8" (200mm) EZ valve installation on cast Iron pipe. The pipe was approximately 80 years old and was the main feed for the water treatment plant for Ingweiler, France.
Another Successful 20-Inch Bubble-Tight Shutdown
Another Successful 20-Inch Bubble-Tight Shutdown
Everybody involved with the project was very happy with the EZ™ Valve install that Francois Houle and Chris Murphy completed in Magog, QC.
United Water Installation
United Water Installation
10" (250mm) EZ™ Valve fully installed (by United Water) in well under 2 hours.
Emergency Installation in Indiana
Emergency Installation in Indiana
An emergency 8" (200mm) EZ™ Valve installation in rural Indiana reveals massive tuberculation. The EZ™ Valve's resilient wedge gate powers through this obstacle as though it wasn't there. Creating a bubble tight seal and allowing vital line work to be completed.

A unique insertion valve design has made a big difference for crews that work on iron, plastic, ductile, AC and other common pipe materials. Preparation and install times have been reduced and total cost per valve has been improved by a tested and efficient concept: a slot access resilient wedge gate that doesn't sever the line, doesn't cause restraint problems and provides a simpler and easier procedure.

Until recently this slot-access insertion valve hadn't been applied to a steel pipeline (in sizes over 12" (300mm)) due to the differences in OD of steel sizes as compared to most other pipe materials. A simple solution was devised by manufacturing custom steel saddles to create a welded-on "sleeve." The sleeve is composed of half-cylinder sections that bring the OD dimension into agreement with other pipe materials and permits the use of standard gaskets sets.

Once the new enhanced diameter section is completed, the valve insertion process takes three simple steps. First, the pipe section is wrapped with low-friction tape, the gasket set is thoroughly lubricated, and the valve castings are secured to the pipe section. Second, the temporarily mounted milling machine, guide controls, and chip-flush system are attached and used to create a 120-degree access slot in the host pipe. Third, the temporary equipment is removed, the valve bonnet is attached, the fittings are torqued to final values, and the valve is actuated as needed. If used as a line stop, the valve bonnet may be easily replaced with a blind flange at a future time. The bonnet is then available for other use.

The entire process may be completed under pressure and with no interruption of service. An internal isolation slide valve that is built into every EZ™ valve avoids procedures common to other insertion valve designs. These include the need for a bulky and costly separate isolation system, the heavy-lifting equipment needed to repeatedly apply and remove the isolation device, plus the extended time required for the multiple change-outs.

Steel pipeline insertion valves can now be installed with the economy, speed, convenience, and reliability that other pipe materials have enjoyed. Typical valve install times are about one hour for smaller sizes (up to 12" (300mm)) and four hours for 14" (350mm), 16" (400mm), 20" (500mm), 24" (600mm). As is true with all other pipe materials, costly restraint operations are avoided due to a design that maintains the integrity of the pipe by not requiring dropping a coupon that totally severs the host pipe.

For details about slot-access insertion valves, contact Advanced Valve Technologies, Inc (877-489-4909 or www.avtfittings.com) and ask about the EZ™ line of valves serving 4" (100mm) through 12" (300mm), 14" (350mm), 16" (400mm), 20" (500mm) and 24" (600mm) nominal sizes.


This sleeve was developed to adapt 16" (400mm) steel OD pipe (16.00) to DI OD pipe 17.40. It is welded to the 16" (400mm) steel pipe, making the OD 17.40. This allows us to use our standard gaskets.

Our first three installations (2 on steel pipe and one on ductile iron pipe) have performed perfectly.

Now steel pipelines can benefit from a tested and advanced insertion valve design that has become the favored choice of water professionals.


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Left to Right:
Sleeve is welded to existing pipe; Valve body is secured in place; 120° slot is cut across top of pipe; Cutting tool is removed and bonnet is lowered into place; Bonnet is secured onto valve body.

Find Out How EZ™ Valve Works!

Advanced Valve Technologies' insertion valves/line stopping equipment are designed and developed by professionals for professionals. Service contracts are performed by highly experienced technicians with real-world know-how. Click the link above to find out more!