Alfa Laval Spiral Heat Exchanger SHE Cond 1SD

Ensure all parts are in place before testing

Is the face of the SHE body held down by a rigid beam or other device?

Secure the beam with hookbolts and weld bead as per diagram

Enter the maximum allowable working pressure (MAWP)

Calculate and enter the maximum test pressure

Conduct hydrostatic test on one side of the unit

Is hydrostatic testing practical?

Consult Alfa Laval if air testing is considered

Retighten hookbolt assemblies in a diagonally opposite sequence

Enter the torque value used for retightening

Which media is cooler and should be admitted first?

Is the fluid nearest ambient temperature admitted first?

Were the pumps started against closed valves?

Ensure all pipework and the SHE are filled before opening the valves fully

Verify cover placement and orientation

Ensure gasket material suitability

Place gasket and cover in position

Apply and finger-tighten hookbolts

Tighten hookbolts diagonally using recommended torques

Enter the actual working pressure

Calculate torque using formula: Torque @ 125 psig. x (Actual Work Pressure / 125 PSIG)

Select the cleaning method used

Are the cleaning agents compatible with the materials of construction?

Provide details of the cleaning agents used

Were proprietary cleaning agents used according to manufacturers' instructions?

Provide specific cleaning instructions if available

Flush the unit completely of all cleaning agents

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

Allow medium with inlet temperature nearest ambient to circulate after other medium is turned off

Reduce all flow rates slowly to avoid hydraulic and thermal shock

Ensure units with fluids having normal boiling point below ambient do not attain ambient temperature while containing fluid against closed valves

Arrange working fluid pipework system for continuous venting

Is the shut-down period short and the SHE not to be opened?

If leaving the SHE full of stationary liquid involves a risk for corrosion, perform the following

If risk for freezing exists, or if the unit is to be opened, perform the following

If the unit is to be returned to the manufacturer, perform the following