alexa Innovative Valve Delivers Safer Surge Vessel Inspections | OMICS International
ISSN: 2168-9768
Irrigation & Drainage Systems Engineering
Make the best use of Scientific Research and information from our 700+ peer reviewed, Open Access Journals that operates with the help of 50,000+ Editorial Board Members and esteemed reviewers and 1000+ Scientific associations in Medical, Clinical, Pharmaceutical, Engineering, Technology and Management Fields.
Meet Inspiring Speakers and Experts at our 3000+ Global Conferenceseries Events with over 600+ Conferences, 1200+ Symposiums and 1200+ Workshops on
Medical, Pharma, Engineering, Science, Technology and Business

Innovative Valve Delivers Safer Surge Vessel Inspections

Natasha Wiseman*

Natasha Wiseman, Former Editor of Water and Wastewater Treatment Magazine, UK

*Corresponding Author:
Natasha Wiseman
Former Editor of Water andWastewater Treatment Magazine, UK
Tel: +44 (0)1273 721150
E-mail:[email protected]

Received July 15, 2014; Accepted September 24, 2015; Published September30, 2015

Citation: Wiseman N (2015) Innovative Valve Delivers Safer Surge Vessel Inspections. Irrigat Drainage Sys Eng 4:144. doi:10.4172/2168-9768.1000144

Copyright: © 2015 Wiseman N. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Visit for more related articles at Irrigation & Drainage Systems Engineering


Dwr Cymru Welsh Water rolls out PRV installations on surge vessels.

QED’s innovative valve technology slashes inspection times.

Surge systems can now be examined on the ground - without switching pressure off.

A major programme to install an innovative pressure relief valve is helping Dwr Cymru Welsh Water to improve the way it maintains surge vessels in South and Mid Wales. Quantum Engineering Developments (QED) has designed a new pressure relief valve (PRV) assembly that means in-service inspections can be carried out without any disruption to the system.

More than half the existing surge vessels in South Wales have now been fitted with Duplex PRVs manufactured by QED in the UK, which means the annual inspections can be carried out in a fraction of the time.

Surge vessels are installed on the water and sewerage network to help reduce pressure surges in pipelines. Uncontrolled surges can cost utilities millions of pounds every year in fixing burst pipes and water wastage.

They also put the network at risk of negative pressure which, in the case of potable water mains, directly contravenes the Drinking Water Inspectorate’s requirement for utilities to maintain adequate pressure to reduce the risk of contamination.

Annual working inspections are essential to keep the assets in service and meeting the statutory legal requirements under the regulations for pressure systems and equipment. Traditionally surge vessels had to be depressurized and drained in order to carry out annual third-party working inspections.

The Duplex PRV system replaces the existing pressure valves with a pair of valves which are housed at ground level. Previously, in order to comply with pressure systems safety regulations, inspectors had to access the valve at the top of the vessel once the whole system had been depressurized, posing a working-at-height safety risk.

Safety Enhanced

With the Duplex PRV the insurance company inspector is able to examine the system on the ground - without switching off the pressure - by switching between one valve and another. This eliminates a potential safety risk and significantly speeds up inspection times.

Greg Sullivan, statutory maintenance engineer from Welsh Water said: “A lot of these vessels were built in the ‘seventies without really having best maintenance practice in mind. Previously it would take two or three people two or three days to do this job - now one person can do it in half a day. This represents a benefit for the company.

“When I first made the case for this to our business managers they said: ‘It’s a no brainer.’”

Welsh Water has now replaced 53 surge vessel control systems with Duplex Pressure Relief Valves with another 30 sites to assess on a case-by-case basis. Engineers from QED have fitted Duplex PRVs as each surge vessel comes up for its annual inspection, minimizing the disruption to the network.

The retrofitting programme won the Chairman’s Award at the Institute of Water Welsh region annual innovation awards 2014. It was also commended at the Welsh Water’s Occupational Health and Safety Conference 2015.

Tim Harper, Operations Manager, QED said: “Well-maintained surge vessels are essential for protecting water mains. Making sure surge vessels are appropriate to the main they are protecting, and correctly maintained, prevents pressure becoming too high or too low. This reduces the risk of bursts and leaks.”

He continued, “It is a legal requirement for any kind of pressurised vessel to follow strict statutory inspections by insurance company inspectors, but releasing assets for inspection in it risks disruption of supply and statutory non-compliance.

“The design of the Duplex Pressure Relief Valve means inspectors can switch between one control valve and another - ensuring both are working correctly without the need to isolate the pressure vessel and disrupt the system. We are delighted that Welsh Water has adopted this extensive retrofitting scheme and we believe it will enable them to deliver a better, safer and cheaper service to water users.”

About QED

Quantum Engineering Developments Ltd (QED) is an industry leading engineering company specializing in the supply, installation and refurbishment of surge control systems; bespoke compressor packages for DAF and backwashing; and instrumentation and controls. For over twenty years QED has been successfully supporting and servicing all the major water utilities in the UK. To ensure the superior quality of our service QED only uses in-house engineers, specifically qualified and trained in this specialist area.

Select your language of interest to view the total content in your interested language
Post your comment

Share This Article

Article Usage

  • Total views: 11646
  • [From(publication date):
    December-2015 - Jan 19, 2018]
  • Breakdown by view type
  • HTML page views : 7864
  • PDF downloads : 3782

Post your comment

captcha   Reload  Can't read the image? click here to refresh

Peer Reviewed Journals
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2018-19
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

Agri & Aquaculture Journals

Dr. Krish

[email protected]

1-702-714-7001Extn: 9040

Biochemistry Journals

Datta A

[email protected]

1-702-714-7001Extn: 9037

Business & Management Journals


[email protected]

1-702-714-7001Extn: 9042

Chemistry Journals

Gabriel Shaw

[email protected]

1-702-714-7001Extn: 9040

Clinical Journals

Datta A

[email protected]

1-702-714-7001Extn: 9037

Engineering Journals

James Franklin

[email protected]

1-702-714-7001Extn: 9042

Food & Nutrition Journals

Katie Wilson

[email protected]

1-702-714-7001Extn: 9042

General Science

Andrea Jason

[email protected]

1-702-714-7001Extn: 9043

Genetics & Molecular Biology Journals

Anna Melissa

[email protected]

1-702-714-7001Extn: 9006

Immunology & Microbiology Journals

David Gorantl

[email protected]

1-702-714-7001Extn: 9014

Materials Science Journals

Rachle Green

[email protected]

1-702-714-7001Extn: 9039

Nursing & Health Care Journals

Stephanie Skinner

[email protected]

1-702-714-7001Extn: 9039

Medical Journals

Nimmi Anna

[email protected]

1-702-714-7001Extn: 9038

Neuroscience & Psychology Journals

Nathan T

[email protected]

1-702-714-7001Extn: 9041

Pharmaceutical Sciences Journals

Ann Jose

[email protected]

1-702-714-7001Extn: 9007

Social & Political Science Journals

Steve Harry

[email protected]

1-702-714-7001Extn: 9042

© 2008- 2018 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version