Instrument Associates, Inc - Sentry Heat Exchangers

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Tube-In-Tube Heat Exchangers
Plate Heat Exchanger
Spiral Tube Heat Exchanger

The Sentry Plate and Frame Heat Exchanger and the Sentry Thermcatcher Brazed Plate Heat Exchanger both offer high heat transfer capacity. These compact heat exchangers consist of many stainless steel plates with a chevron pattern embossed in each plate. The PHE uses individual gaskets on each plate that are arranged so no mixing of the two fluids can occur and any leakage will be to atmosphere.

High Efficiency
Specially designed corrugated plates produce heat transfer coefficients that are several times greater than those generally obtained with other types of exchangers.

Low Initial Cost
Sentry PHEs and BPHE very often cost less than half of a competing shell and tube type exchanger. The price advantage becomes even more significant when stainless steel or exotic metals are required.

Close Temperature Approach
A high rate of heat transfer - due in part to a large heat transfer area - allows the hot fluid to be cooled to within one to three degrees incoming cooling medium.

Low Pressure Drop
The unique design features of plate heat exchangers allow the application engineer to select an exchanger which provides the desired heat transfer with far less pressure drop than would be required by a shell and tube exchanger. Pressure drops of less than 2 psi are easily attainable. This permits the use of smaller pumps and thus reduces operating costs.

Minimum Fouling
Fouling is greatly reduced in the Sentry PHE and BPHE due to the high velocities and turbulent flow of the media.

Easily Cleanable Sentry PHEs can be easily disassembled for service and cleaning. On single pass exchangers, the piping does not have to be disconnected, and no extra clearance is required to remove internal parts.
Sentry BPHEs can not be disassembled, but chemical cleaning is enhanced by high turbulence.

Versatility
Each Sentry PHE is designed to precisely match the requirements of a specific application. But if the application is changed, the exchanger can be easily modified by adding, removing or changing plates in the field.
Sentry BPHE are compact, requiring only 10 to 20 percent of the space required by a shell and tube heat exchanger. The BPHE is also light weight and can often be mounted in piping with no other supports. In addition, the thousands of brazed points create an extremely sturdy assembly making it resistant to both shock and vibration.

Instrument Associates, Inc.