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Article Date: 8th February 2016

DMS - Elster Gas Regulators - Spring Forward

Gas Pressure Regulator - Low Pressure Regulator - Gas Regulators

DMS Elster Jeavons Regulator

Unlike some other products, the basic design of a gas pressure regulator can remain the same for many years. Change comes as a gradual evolution often prompted by external factors. One such is a recent update of the long running and well-respected Elster Jeavons J48 low pressure regulator. The model has been in production since the early 1970s, but over the years nearly every component has changed in some way. In the latest enhancement, prompted by the need to comply with the more exacting requirements of an updated European Standard EN88, the loading springs were reviewed and refined.

For the regulator sizes ¾” to 2” the old selection of 5 – 6 springs per size has now grown to 7 – 8 springs. Some have remained unchanged, some have been redesigned to improve performance within a given outlet pressure range and others have been withdrawn and replaced by three springs of narrower range but giving improved outlet pressure control.

Resulting from the extensive testing involved in the review, the regulator capacity tables on the data sheets have been updated to reflect the improved performance that these new springs offer. For the first time the tables give maximum capacity figures covering the full range of inlet and outlet pressure combinations.

As with all loading springs fitted to Elster Jeavons regulators, the springs are easily identifiable with a unique colour code.

By Paul Webster – Technical Director at Elster Jeavons

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