Dival 500

Dival 500 by Pietro Fiorentini is a direct-operated gas pressure regulator controlled by a diaphragm and contrasting regulated spring action.

Suitable for use with previously filtered gaseous fluids, it is mainly used for medium and low pressure natural gas distribution networks.

It is classified as Fail Open according to the European Standard EN 334.

Dival 500 is Hydrogen Ready for NG-H₂ blending.

• Accuracy class AC: up to 10 | up to 1% absolute (depending on working conditions)
• Nominal sizes DN: 1″ x 1″, 1″ x 1″ 1/2
• Lock-up pressure class SG: up to 20 (depending on version and set point)
• Design pressure: up to 145 psig | 1 MPa for BP, up to 290.1 psig | 2 MPa for MP and TR
• Design temperature: from -4 °F to 140 °F | from -20 °C to +60 °C
• Minimum differential pressure: 1.45 psig | 0.01 MPa
• Range of downstream pressure Wd: from 5.22″ wc to 1.45 psig for BP, from 1.45 to 4.4 psig for MP, from 4.4 to 36 psig for TR | from 1.3 to 10 kPa for BP, from 10 to 30 kPa for MP, from 30 to 250 kPa for TR
• Inlet pressure range bpu: from (Pd + 1.5) psig to 145 psig | from (Pd + 0.01) MPa to 1 MPa for BP
  from (Pd + 1.5) psig to 290.1 psig | from (Pd + 0.01) MPa to 2 MPa for MP and TR