Component Seal adapts to changing process conditions.

Press Release Summary:

M7iM seal utilizes 1-piece Super-Sinus spring to provide uniform axial force. Designed for ANSI pumps, seal offers interchangeable parts, self-cleaning open drive collar, and cold-formed material structure. Sizes range from 1.000 to 4.000 in. Model M7iM operates in temperatures from -58 feg F to 430 deg F, and its operating pressure limit is 360 psi. It is capable of operation at shaft speeds up to 66 ft/sec.

Original Press Release:

New M7iM Seal From Burgmann Features A Super-Sinus Spring Design Providing Greater Axial Tolerance And Longer Seal Life

The new M7iM seal from BURGMANN utilizes a one-piece Super-Sinus spring in place of the multi-springs found in traditional pusher seal designs. The Super-Sinus spring provides a more uniform axial force, giving the seal greater tolerance to installation and increasing seal life even under demanding conditions.

The M7iM component seal is designed for use with ANSI pumps worldwide in a broad range of process applications. The seal features interchangeable parts, so inventory requirements are reduced. Seal faces can be easily replaced, so the M7iM seal can easily adapt to changing process conditions.

The new seal is well suited for applications where seal chamber size limitations are a problem. The installation length of the M7iM is equal to or less than conventional component seals, so it will fit most stuffing boxes without equipment modifications. The seal's open drive collar is self cleaning and self cooling, so it spins away clogging solids particles while supporting active cooling.

Made of heavy, flat wire with a large cross-section and no welding spots, the Super-Sinus spring survives far longer in corrosive environments than regular multi-springs. It also features a cold-formed material structure that reduces the risk of spring fracture.

Sizes ranging from 1.000 in. to 4.000 in. (25 mm to 101 mm) are available, with other sizes available on request.

The M7iM seal features an operating temperature range from -58°F to 430°F (-50°C to 220°C) and an operating pressure limit of 360 psi (25 bar), depending on the seal face materials specified. It is capable of operation at shaft speeds up to 66 feet/sec (20 m/s).

For more information about the M7iM seal, contact BURGMANN, 10035 Brookriver, Houston, TX 77040. You can also call (713) 939-9515 or visit our website at

More from Fluid & Gas Flow Equipment

All Topics

COVID-19 Response Suppliers COVID-19 Response:
Can Your Company Help Provide Critical Supplies?

We are using the power of our platform to aid in the mass shortage of critical supplies. If your company can help provide supplies, capabilities, or materials for products such as N-95 Masks and Tyvek SuitsPlease let us know.

COVID-19 Response Suppliers