Alfa Laval Spiral Heat Exchanger SHE Cond 30L

Select the cleaning method used

Ensure pipework is provided with valved branches for cleaning agents circulation

Are the cleaning agents compatible with the materials of construction?

Use proprietary cleaning agents according to manufacturers' instructions

Provide specific cleaning instructions if detailed fouling/scaling information and unit serial number are available

Flush the unit completely of all cleaning agents

Is the unit drained if not put back into operation immediately?

Ensure all parts are in place before testing

Secure the exposed face of the SHE body with a rigid beam or device

Enter the maximum allowable working pressure (MAWP)

Calculate and enter the maximum test pressure

Is the hydrostatic test practical?

Consult Alfa Laval if air testing is considered

Examine channels for the following issues

Is an optical device needed for inspection?

Is there any massive corrosion or erosion evident?

Is there any mechanical damage suspected?

Describe any detected issues in detail

Contact Alfa Laval for advice if massive corrosion, erosion, or mechanical damage is detected

Ensure safety before opening the unit

Disassemble hookbolts and remove covers

Dismantle flanged joint for cooling water outlet on Type IIIV

Check for damage when removing gaskets

Secure unit to prevent swinging if mounted on trunnions

Fasten hinged covers at piping connections and mounting brackets before opening

Ensure proper shut-down sequence

Is the working fluid pipework system arranged for continuous venting?

Determine action based on shut-down period and corrosion risk

Is the unit to be returned to the manufacturer for inspection, cleaning, or repair?

Prepare unit for return to manufacturer

Ensure SHE is shut down and isolated from process and service streams

Drain procedures based on SHE type