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‘DIAMOND
DEW’ safety
relief valves’ outstanding features are the stainless steel
disc, nozzle and accurate designed guide for safety and reliable
operation. Guide surface is situated above disc and is not exposed
directly to the fluid which prevents erosion due to flow. This
system also eliminates obstruction in the orifice. Valves are
provided with adjustable ring for adjustment of blow-down pressure
in air/gas application.
For zero leak tests the valves are
provided with special seating applicable up to 10kg/cm2 and
250°C temperature. Valves are also supplied with lifting lever,
test gag to suitable service.
Set pressure
range is up to 77Kg/cm2 for sizes ¼” to 2” with screwed ends
and from 1” to 6” with flanged ends as per ANSI 150# to ANSI
600#. Body material
is of Carbon steel, Stainless steel, Cast steel or Gunmetal
with standard stainless steel trim. These
safety relief valves are manufactured to meet ASME code sec.
VIII. The dimensions, orifice and pressure temperature limits
are as per API 526 Std. Higher pressure and severe service safety
relief valves are also available upon request.
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