Dival SQD-2


Dival SQD-2 is one of the direct-operated gas pressure regulators controlled by a diaphragm and contrasting regulated spring action by Pietro Fiorentini.

Mainly used for medium and low pressure natural gas distribution networks, it ca be used with previously filtered gaseous fluids.

According to the European Standard EN 334, it is classified as Fail Open.

Dival SQD-2 is Hydrogen Ready for NG-H2 blending.


  • Accuracy class: up to 10
  • Available size DN: 2″
  • Closing pressure class SG: up to 20
  • Design pressure: up to 6 bar
  • Design temperature: from -20 °C to +60 °C
  • Flanging: class 150 RF according to ASME B16.5 and PN 16 according to ISO 7005
  • Minimum working differential pressure: 0.1 bar
  • Outlet pressure range of Wd: from 10 to 300 mbar
  • Range of inlet pressure bpu: from 0.2 to 6 bar


The configuration options can be compounded and aggregated differently. Please refer to the technical manual for all available combinations.
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Technical Manual

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Technical brochure

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