Cirval

Description

Cirval 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 can be used with previously filtered non-corrosive gases.

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

Features

  • Accuracy class AC: up to 10
  • Nominal sizes DN: 3/4″”, 1″” 1/2
  • Lock-up pressure class SG: up to 20
  • Design pressure: up to 8.6 bar
  • Design temperature: from -20 °C to +60 °C
  • Connections: 1″” 1/4, 1″” 1/2, 2″” according to ANSi B1.20.1 and 2″” S.125FF according to ANSI B15.5
  • Minimum differential pressure: 0.12 bar
  • Range of downstream pressure Wd: from 0.017 to 0.69 bar
  • Inlet pressure range bpu: from 0.13 to 5 bar

Configurations

The configuration options can be compounded and aggregated differently. Please refer to the technical manual for all available combinations.
Slam shut
Monitor
IMD

Documentation

Flyer

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