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Differential pressure proving?

Differential pressure proving?

Why choose Medem differential pressure proving?

The differential gas pressure proving method as developed and patented by Medem operates by measuring the pressure differentially across the inlet and the outlet of a gas isolation valve using micro transducers. All other systems can only see the gas pressure when the valve is open.

1. Differential proving enables the supply pressure to be measured before the associated isolation valve is opened. This means that in the event of gas over pressure or under pressure the valve would remain safely shut and reported on the system LCD. Therefore only the differential gas pressure proving method can be considered to be truly fail safe.

2. This method is dynamic in that it takes into account any supply pressure changes that could be temporarily created by increased demand such as a boiler firing. Such transient changes in pressure would have the potential to cause other methods to isolate the gas supply needlessly.

3. Some other gas pressure proving methods can fail to identify a gas leak because they have to be set on installation and if the supply pressure at the time of setting is even slightly higher than in subsequent use then a leak can be missed during test.

Nigel Thornley

Nigel Thornley, BSc(Eng) CEng FIET

Design & Specification Documents

Building Bulletin 100, Design for fire safety in schools

Building Bulletin 100, Design for fire safety in schools

Building Bulletin 100, Design for safety in schools

This is a very comprehensive document so here are just a couple of extracts that ....

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IGEM/UP/1A/ Edition 2, Strength testing, tightness testing......

IGEM/UP/1A/ Edition 2, Strength testing, tightness testing......

IGEM/UP/1A/Edition 2, Strength testing, tightness testing and direct purging of small, low pressure industrial and commercial Natural Gas installations.

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IGEM/UP2/Edition 2

IGEM/UP2/Edition 2

Within IGEM/UP/2 Edition 2 it highlights the potential risks surronding the control of gas solenoid valves (AIV's) and automatic restarting.

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Individual laboratory control?

Individual laboratory control?

There are three main areas of gas control in education buildings:

Boiler room
Production Kitchen

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What makes us different?

What makes us different?

We’re interested in you.

Whether you’re a consultant or specifier, installation engineer or end user, ....

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Why fit gas pressure proving in a commercial kitchen

Why fit gas pressure proving in a commercial kitchen

We are still on occasion asked to supply a system that performs ventilation interlock alone - no gas pressure proving. Although we do have such a system, it was....

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GPPS-evo

GPPS-evo

GPPS-evo, combines and supersedes the GPPS-L & L-CO2 panels

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