Videos
Safe-T-Stopper Introduction
Safe-T-Stopper: Cap Tees
Safe-T-Stopper: Homemade Pipe Type Tee (Cap Tees)
Safe-T-Stopper: Old H17500 Mueller Tees without Completion Plug
Safe-T-Stopper: Elbow Swing Join Services
Safe-T-Stopper: Bolted Saddle PE Tee (US Version)
Gas Meter Valve Changer
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Valve Changer Overview
Gas-Free removal and replacement of most 1/2″ – 2″ rectangular port or ball meter valves on steel and anodeless PE risers operating up to 100 psi.
Why Use the Valve Changer?
No blowing gas.
Enhances public and worker safety.
Fast and easy valve change out.
Customers can be back online in no time!
Saves the cost of the entire service renewal.
Easy Operation
1. Remove the piping and check valve passage using a sight glass.
2. Attach the Valve Changer and insert the stopper below the valve.
3. Remove old valve.
4. Install new valve.
Build Your Own Valve Changer Kit
1/2"-2" Standard Valve Changers
Stops most outdated or defective meter valves on many risers without blowing gas.
Dresser Style Meter Valves
Retire Old & New Dresser Style 175 Valves on Steel and PE Risers.
Service Head Adapters and Anodeless Risers
Undersized Valve Ports
Custom Valve Changer Solutions
Valve Changers made according to your requirements include:
Stopping units lengths from 16 inches to 6 feet.
O-Ring style stoppers for extra small openings.
Rectangular and cylindrical rubber stoppers.
Mazco Website Promotes Unique Tool
Mazco is pleased to introduce a new user-friendly website for Mazco Products and Services, featuring the innovative Safe-T-Stopper line of stopper tools.
The Safe-T-Stopper allows for the quick removal of service tees while the main gas line remains operational, preventing any product release. This ensures employee safety and promotes a healthier environment.
Mazco has also developed the Safe-T-L-Stopper for removing elbow swing joint service connections. Owner Ivan Mazur created these tools to address the need for safer servicing of the millions of service tees and compression fittings in utility gas lines across North America.
Unlike previous methods that required stopping the main gas line, the Safe-T-Stopper interrupts the gas supply, allowing safe maintenance without exposing workers to hazardous conditions. These tools are designed with worker safety in mind, as natural gas is flammable and potentially harmful.
The Safe-T-Stopper operates at up to 100 psi and is compatible with various service connection sizes. The Safe-T-L-Stopper is specifically made for elbow swing joint connections.
The Mazco website also includes videos demonstrating the Safe-T-Stopper in action, targeting industry professionals, as well as various types of service tees. Additionally, the site features a blog with news about new Mazco products in development and information about local distributors.
Drilling Tool
Mazco is excited to introduce a new drill for the Safe-T-Stopper line of products. This drilling tool is used to drill holes on the backside of an elbow. Then a rubber plug is inserted, thereby stopping the gas to the branch outlet, so abandonment procedures performed without blowing gas.
Mazco Introduces Half Collars
Mazco has recently introduced redesigned half collars for its safety stopper equipment tooling. These half collars secure the tooling to the service tee connection by a rigid loop under the branch connection. These collars provide fail-safe security against tool movement.
The original half collars and safety strap security retention system are still available and promoted as part of the tool in the event of branch connections (couplings or elbows) that may interfere with rigid loop half collars.
If you have any questions regarding this technology, please contact one of our distributors or Mazco direct.
Home Mazco
Elevate Gas Tool Safety
Leading the way in natural gas service tools with engineered solutions trusted across North America.
Gas-Free Service Tool Since 2005
Combine decades of field knowledge with innovative engineering to solve real-world challenges in gas distribution. Our tools enable gas utilities to renew or abandon live service lines without releasing gas, protecting workers, customers, and the environment.
WHY CHOOSE MAZCO?
At Mazco, we don’t just build tools—we build confidence. Our solutions are engineered with real-world utility in mind, enabling gas professionals to work more safely, efficiently, and cleanly. With proven performance, quality, and trusted distribution, Mazco is the wise choice for innovative gas service solutions.
- PROFESSIONALISM
- RELIABILITY
- HIGH EXPERTISE
- CONSCIENTIOUS
OUR CUSTOMERS
About
About Mazco Products
Innovation Rooted in Safety
At Mazco Products & Services Ltd., we’ve spent decades at the forefront of innovation in the natural gas distribution industry. Founded in Leduc, Alberta, our mission is simple but powerful: to design and deliver cutting-edge tools that improve safety, reliability, and efficiency in natural gas operations.
From our industry-acclaimed Safe-T-Stopper® to our growing range of advanced gas servicing tools, our products empower technicians to perform critical work with precision – often without shutting off gas or risking exposure. These tools are trusted across North America by utility companies, contractors, and professionals who demand performance without compromise.
Trusted by Industry Leaders
We proudly supply our tools through leading distributors across North America, ensuring that reliable Mazco quality is always within reach.
Years of Industry Expertise
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Mazco Tools in Use
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North American Gas Companies Using Mazco Tools
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Built by Experience, Driven by Purpose
Mazco isn’t just a name – it’s a promise of durability, innovation, and service. Our team is made up of seasoned industry professionals who understand the challenges field crews face. Every product we develop reflects real-world experience and a commitment to enhancing worker safety, environmental protection, and operational uptime.
Quality You Can Depend On
All Mazco tools are designed, tested, and assembled in Canada. Our strict quality control process ensures every tool that leaves our facility meets the highest standards of safety and performance.
We don’t just sell tools – we provide confidence in every connection.
