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From our start in 1923 in Detroit, the H. O. Trerice Co. has remained true to the commitment of our founder: QUALITY in both PRODUCT and SERVICE. This commitment has placed Trerice as a worldwide leader in the manufacture and supply of temperature and pressure measurement and controls.

When your requirements demand quality and durability, the broad line of Trerice products is ready for your selection. Contact us today for expanded information on your particular areas of interest.


The H.O. Trerice Co. unconditionally guarantees products of its manufacture to be free from defects in workmanship and material for a period of one year from the date of shipment to the original purchaser. Trerice will repair or replace such product (F.O.B. Factory) should our internal examination reveal it to be defective. Product used in conjunction with non-Trerice product, or in any way modified or altered, may not be covered under the terms of this warranty. Trerice assumes no other responsibility or liability.


The following trademarks are not owned by Trerice and are the property of their respective owners:

  • Tri-Clamp®
  • Teflon®
  • Viton®


The H.O. Trerice Co. recognizes the following organizations: Fluid Controls Institute (FCI), Valve Manufacturers Associations of America (VMA) and the International Society of Automation (ISA). These nonprofit associations work with manufacturers and other organizations to develop standards and exchange statistical and technical knowledge.


All Trerice products should be carefully selected to meet the demands of the particular application. The information contained in this catalog is offered only as a guide to assist in making the proper selection. Selection of the proper product, as well as its installation and use, is the sole responsibility of the user. Improper application or product misuse may cause failure of the product, resulting in possible personal injury or property damage. For correct use and application of all Trerice products, please refer to the proper standard set forth by ASME. These documents may be obtained from the American Society of Mechanical Engineers (ASME), Three Park Avenue, New York, NY 10016-5990.

A word about this catalog

The information contained in this catalog was correct at the time of printing. Due to the Trerice commitment of continuous development and improvement, these specifications are subject to change without notice. Any information contained within this catalog should not be interpreted as a contractual agreement by Trerice. All order are subject to the approval of the H.O. Trerice Co., Oak park, Michigan.