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Commitment to Excellence

Uncompromising Quality in Manufacturing

M&M International sources the best raw materials for use in our products, which include drill stem safety valves (DSSV), canister valves, inside BOP valves (or IBOP valves), kelly cocks and kelly valves, safety valves, subs, mudsavers, and top drive valves. Material traceability is maintained throughout all phases of manufacturing.


Our Valve Products

What is Canister Guard®?

In 1993, M&M International designed, produced, and deployed the CANISTER GUARD®, which is still today the most innovative feature to ever be incorporated into a kelly, top drive, or safety valve.

M&M International’s CANISTER GUARD® is comprised of other patented M&M technologies, namely LITE-TORC™, SURE-STOP™ and CHECK-SEAL™, along with its modular configuration of the internal parts, or “canister”, as the name implies.

M&M International’s CANISTER GUARD® reduces the need for customer locations to keep large spare valve parts inventories on hand. In most cases, CANISTER GUARD® valves utilize identical parts within each size range. This low inventory ability allows a customer to operate with one spare canister and one or two spare operating stems in inventory, if necessary.

Cannister Guard Logo

Canister Guard® Design

The M&M International CANISTER GUARD® encapsulates its internal spring loading within the canister itself, which is a significant feature that cannot be overstated. During disassembly of one-piece valves made by other manufacturers, the internal spring must be compressed prior to removal of the locking mechanism.

Considering the application, it is typical for mud, cement, debris, and/or corrosion to accumulate in this area. This makes it difficult or even impossible to compress the spring enough to remove the locking mechanism from valves of this kind, even when using the special tools required by the competitor manufacturer. These and other issues can make field dressing impractical and shop dressing a much longer and more expensive process than necessary. M&M International’s CANISTER GUARD® technology completely eliminates these issues, saving both time and money.

M&M International's Cannister Guard Design

Cannister Guard 1 (1)



Assembly and Disassembly of M&M International Valves

With our valves, there are no special assembly or disassembly tools required, no threaded seats to remove, and no spring tension to overcome when working with a CANISTER GUARD® valve.


M&M International Patented Technologies

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M&M International’s LITE-TORC™ technology offers the ability to close the CANISTER GUARD® valve while under significant flow and allows the valve to be easily opened or closed under high-balanced pressure.

Utilization of the LITE-TORC™ system drastically improves the ability of a valve to be closed under heavy flow, enabling the closing of the CANISTER GUARD® valve by one man with a standard 12” hex wrench. Once the valve is closed, wellbore pressure can slowly be balanced by pump pressure to allow the valve to be re-opened with less than 30ft. lbs. of torque.

Cannister Guard 4 (1)



The innovative SURE-STOP™ technology by M&M International revolutionizes ball rotation in a way that is both efficient and reliable. By incorporating dual interior contact points within the cage leg(s), this groundbreaking technology ensures that ball rotation is halted when in the fully opened or closed position, limiting it to a precise 90 degrees.

With SURE-STOP™, the frustrating possibilities of over or under rotation are completely eliminated, providing a seamless and hassle-free experience. Additionally, this feature plays a vital role in safeguarding the internal components of the CANISTER GUARD® from any potential washout or erosion. Trust in the power of SURE-STOP™ to deliver optimal performance and prolong the lifespan of your equipment.

Check Seal (1)



M&M International's CHECK-SEAL™ technology in our CANISTER GUARD® valves maintains a pressure seal in one direction, allowing wellbore pressure to bypass the lower seat and create a seal between the ball's strong cross-section and the upper seat.

Box End Pressure

The CANISTER GUARD® valve's cage legs restrict the upper seat's movement, functioning like the CHECK-SEAL™ but in the opposite direction. When pressure is applied from above, the ball can travel downward beyond the cage legs, allowing pressure to create a seal between the ball and the lower seat.

Frequently Asked Questions

Need answers? Look no further than our comprehensive FAQ section for quick and easy reference.