Spence Engineering

  Spence Engineering Company, Inc.

Spence Engineering Co., Inc., a Division of CIRCOR


Phone: 847-356-0566      Fax: 847-356-0747      E-Mail: sales@mmcontrol.com

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Spence Noise Reduction

Noise Suppression, Insulation & Desuperheaters

Muffling Orifice Plates (MOPS)

Design & Operation

Spec & Tech Sheets       

Orifice Plates


Benefits & Features

A Spence Muffling Orifice Plate, when sized properly, can reduce high flow valve noise 5-15 dBA. Installed in the expanded downstream piping, the muffling orifice reduces the generation of noise at its source by reducing the amount of pressure drop required by the valve. MOPS are individually engineered for each application to provide maximum noise reduction without reducing regulator capacity. Contact us for sizing help.



Noise Suppressor

Design & Operation

Spec & Tech Sheets       

Spence Noise Suppression

Noise Suppression

Benefits & Features

A Spence Noise suppressor will reduce pipeline carried noise by 10 to 20 dBA. Installed at the valve outlet, the suppressor absorbs noise and limits its transmission through the piping system without creating pressure drop.

For maximum noise reduction of pipeline transmitted noise, the combined installation of a Spence MOP and Noise Suppressor will reduce the sound pressure level by 16 to 30 dBA.



Insulcap Thermal and Acoustic Jacket

Design & Operation

Spec & Tech Sheets       

Spence Insulcap Jacket

Insulating Jackets

Benefits & Features

The Spence Insulcap removable insulating jacket is a one piece, reusable, insulating cover designed specifically to fit and be used on Spence regulators, control valves, and steam traps. You will see immediate cost savings when you add a Spence Insulcap thermal jacket to any Spence valve by reducing the amount of heat and energy loss to atmosphere. By adding a Spence Insulcap Acoustic Jacket you will not only reduce energy loss but you can also reduce valve noise by 5-6 dBA. Being a removable and reusable jacket, the Insulcap makes replacement and maintenance costs much less than those associated with rigid insulation.




Design & Operation

Spec & Tech Sheets       

Spence Desuperheater

Spence Desuperheater

Benefits & Features

Spence Engineering offers both mechanical atomizing and steam atomizing desuperheaters. Designed to accurately reduce and control the temperature of superheated steam by a controlled injected spray of water, the Spence desuperheater is engineered for your specific conditions and assembled from standardized components, permitting accurate control at a moderate price. The unique nozzle design allows for the efficient absorption of the cooling water by the steam with minimum pressure loss.



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Phone: 847-356-0566   Fax: 847-356-0747      E-Mail: sales@mmcontrol.com




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WARNING: Some of the products we sell can expose you to chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. Contact your sales rep or go to www.P65Warnings.ca.gov for more information.

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(PowersTM, also known as, POWERS REGULATOR, MCC POWERS, POWERS-FIAT, POWERS PROCESS CONTROLS, CRANE POWERS and POWERS, a Watts Industries Company. The POWERS trademark is owned by Powers, A Division of Watts Water Technologies, Inc. M&M Control Service, Inc. Is a Stocking Distributor for PowersTM)

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