Mechanical Seals PDF Print E-mail

The advanced materials used throughout the seals are coupled with unparalleled design concepts aimed exclusively at the unique ALKYLATION requirements.

Always privately held, Stratford Engineering Corp. began licensing ALKYLATION technologies in 1938. In 1977, Ward Graham, my father, bought controlling interest of Stratford Engineering and rebuilt and expanded under the new name of Stratford/Graham Engineering which later became STRATCO, Inc. In 2003, the ALKYLATION division of STRATCO, Inc. was sold to DuPont. After a 5 year sabbatical, Stratford Engineering, LLC has reentered the ALKYLATION industry and is to help you in your reliability programs and so that you can achieve the best world class ALKYLATION performance.

Our newest seal systems are tested prior to shipment which assures successful operation. The seal designs offered are the product of 71 years of application experience supporting the global ALKYLATION community. The worldwide refining business has made many changes in operations over the years, including reliability, safety, and capacity. All of these issues demand continuous improvement in all areas.

The seals offered by Stratford Engineering, LLC address the needs of refineries in today’s tough business climate, with increased operating demands and a competitive environment. Our inventory offers a quick turn around on repairs and delivery of new units.

The Stratford seals offer safety, redundancy, and improved operational life while addressing emissions levels and the long MBTR expected by today’s users.

Our Team is here to serve your Alkylation needs. Let us replace your mechanical seals with a Stratford seal!

StratfordEngineering.com Call or email diane.graham@stratfordengineering.com today!

Due to our long-time relationship with many manufacturers of specialty or commodity products, Stratford can offer OEM status for many of your everyday needs.

Spare Parts and Service

The key to maximizing the life and efficiency of your Stratford Engineering Contactor™ reactor is proper maintenance. This includes not only proper lubrication, but also the prompt repair or replacement of wearable parts. Stratford Engineering offers replacement parts, repair services, and complete refurbishment to ensure that your Contactor™ reactor is maintained in peak operating condition. The use of Stratford Engineering OEM parts assures custom fits and the provision of proper clearances and tolerances in accordance with Stratford Engineering design standards.

Why you should use genuine Stratford Engineering OEM parts:

  • Optimum raw material dispersion
  • Optimum heat transfer
  • Minimizes energy costs
  • Prolongs useful life of mechanical seal
  • Prolongs useful life of bearing bushing
  • Prolongs motor bearing life
  • Protects impeller shaft from wear

Our critical dimensional tolerances are less than 0.02mm, because IT MATTERS!

Because our high-quality equipment is so durable, our reactors remain in service over 80 years! And, we will continue to offer spare parts and equipment upgrades for every unit we have produced! Most of our replacement parts for today’s Contactor™ reactors are specifically designed to work in our earlier generation units as well.

For current pricing on Stratford Engineering OEM parts or complete Hydraulic Head assemblies contact us today!

Plant Design

Alkylation is the transfer of an alkyl group from one molecule to another. The alkyl group may be transferred as an alkyl carbocation, a free radical, a carbanion or a carbene (or their equivalents). Alkylating agents are widely used in chemistry because the alkyl group is probably the most common group encountered in organic molecules. Many biological target molecules or their synthetic precursors comprise of an alkyl chain, with specific functional groups in a specific order. Selective alkylation, or adding parts to the chain with the desired functional groups, is used, especially if there is no commonly available biological precursor.

In oil refining contexts, alkylation refers to a particular alkylation of isobutane with olefins. It is a major aspect of the upgrading of petroleum