Description

Control valves

Local regulations may restrict the use of this product to below the conditions quoted.

In the interests of development and improvement of the product, we reserve the right to change the specification without notice.

Desuperheaters

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Direct Contact Desuperheaters

Spirax Sarco direct contact desuperheaters reduce the temperature of superheated steam to produce steam temperatures approaching

saturation temperature. To cool the superheated steam, water is entrained and flashed into vapour by absorbing heat from the steam.

Typical applications:

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To reduce the temperature of steam

discharged from turbine by-pass systems

on power plants for heat exchangers, dump

stations etc.

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To improve heat transfer of indirect contact

heat exchangers - shell and tube , plate

type, reactor heating jackets etc.

- To reduce the temperature of steam on

direct contact applications - food cooking

kettles, in-line steam heaters, tobacco

drying plant and paper mills.

Send us your requirements using our

Desuperheater Enquiry Form available from

our website.

Features:

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Low cost simple, robust design.

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No moving parts to wear.

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Minimal steam pressure drop.

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Flexible design options.

Standards and approvals

Spirax Sarco desuperheaters are available built to ASME B 31.3 design code. Also available are ASME III Division 1.

This product fully complies with the requirements of the European Pressure Equipment Directive and carries the

so required.

Welding is in accordance with ASME IX.

Connections (EN 1092 or ASME B16.5) are sized to suit the process conditions.

Standard ASTM materials of construction include: Carbon steel, Stainless steel, Chrome molybdenum steel etc.,

Certification (included as standard):

1. Desuperheater general arrangement drawing.

2. Installation, operation and maintenance instructions.

3. Hydrostatic test certificate.

4. Letter of conformity.

The following certificates / documents can be supplied at an additional cost.

5. Material certificates to EN 10204 3.1 with a corresponding material location diagram.

6. NDT reports.

Pressure / temperature limits

4.8.2

Spirax Sarco desuperheaters are bespoke products, individually designed to meet user defined process conditions.

Mechanical design pressure and mechanical design temperature limitations are stated on the desuperheater data sheet available from

our online sizing software. These limits are also stated on the product nameplate.

Pressure/temperature ratings for these products will be in accordance with ASME B16.5-1996 or EN 1092-1:2013 as appropriate.

TI-P475-01

CH Issue 3

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