General information
Local regulations may restrict the use of this product to below the conditions quoted.
Product limitations
In the interests of development and improvement of the product, we reserve the right to change the specification without notice. © Copyright 2016
TI-S24-41
CH Issue 3
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Note: This line will illustrate the
minimum operating temperature not
the minimum design temperature.
Pressure bar g
A
B
A
Is the maximum design temperature the body of the product
can be raised to permanently, at a given pressure.
B
Is the maximum design pressure that the combined body
and end connections of the product can withstand at a
given temperature. It is a function of the PN rating and body
design / material.
C
Is a prohibited area and the product must not be used in this
region and will be worded:
The product must not be used in this region.
D
The steam saturation curve is added (where relevant) to
enable users to easily find the specific operating points,
e.g. 10 bar g saturated steam @ 185 °C, 10 bar g steam
with 20 °C superheat or 10 bar g / 250 °C steam.
Pressure / Temperature Limits
for Control Valves
Control valve Technical Information sheets (TIs) for products in pressurised systems contain a 'Pressure / temperature limits' diagram.
This diagram indicates the envelope of the product(s) at the full range of pressures and temperatures. The construction of the
'Pressure / temperature limits' diagram is shown below.
Note: A table 'Definition of technical terms used for control valves' and a typical example (no specific product) is displayed overleaf.
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Pressure bar g
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Pressure bar g
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Pressure bar g
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