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.

According to the European Standard EN 334, it is classified as Fail Close (pilot series 200/A) or Fail Open (pilot series 210/A) according to the installed pilot (except for the PM819 monitor).

Reflux 819 is Hydrogen Ready for NG-H2 blending.

Click here to see the product page in the 100% hydrogen version.

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 0.8 to 100 bar

Configurations

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

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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