Desuperheater Advantages

Turndown ratio

Turndown ratio is a major design factor when specifying or designing a desuperheater. It is calculated by dividing the maximum steam flow by the minimum steam flow. For example:

Most desuperheater applications have a minimum turndown ratio that must be met. Graham Venturi desuperheaters can meet a maximum turndown ratio of 10:1 when installed vertically with upward flow, or 7:1 when installed horizontally. Graham Steam-Atomizing desuperheaters can meet a maximum turndown ratio of 50:1.