Reflux 819

Description

Reflux 819 is a pilot-operated gas pressure regulator.

It is particularly suitable for high-pressure transmission systems and for medium pressure natural gas distribution networks, and it can be used with previously filtered non-corrosive gases.

Reflux 819 is classified as Fail Close according to the European Standard EN 334.

Reflux 819 is Hydrogen Ready for NG-H2 blending.

Features

  • Accuracy class AC: up to 1
  • Nominal sizes DN: 1″, 2″, 3″, 4″, 6″, 8″, 10″, 12″
  • Lock-up pressure class SG: up to 2.5
  • Design pressure: up to 102 bar
  • Design temperature: from -20 °C to +60 °C (higher or lower temperatures on demand)
  • Connections: class 150, 300, 600 RF or RTJ according to ASME B16.5 and PN 16 according to ISO 7005
  • Minimum working differential pressure: 0.5 bar
  • Range of downstream pressure Wd: from 0.3 to 74 bar
  • Inlet pressure range bpu: from 0.5 to 100 bar

Configurations

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

Documentation

Flyer

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Technical Manual

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Poster

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Technical brochure

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Hydrogen compatibility declaration

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