ABOUT US

Engineering with a difference

DQD Engineering Ltd has been at the forefront of process system design, installation, and maintenance for nearly three decades. Established in 1995, we have played a crucial role in shaping industry standards, contributing to the development of BSP and ASME guidelines.

Our expertise lies in delivering high-quality turnkey solutions for RO Generation, Purified Water Storage and Distribution, PSG, Water for Injection, CIP Systems, and more. From concept to commissioning, we ensure seamless integration, adhering to the highest industrial standards, including GAMP, cGMP, and ATEX.
Beyond new system installations, we specialize in prolonging the lifespan of existing systems through our comprehensive service and maintenance programs. One of our flagship installations from 2001 ran continuously until 2024, with only a single week of total shutdown for maintenance—testament to our commitment to durability and efficiency.

With in-house expertise in Process Design, ASME BPE Pipework & Vessel Fabrication, Welding, Automation, and Commissioning, we bring engineering excellence to every project. At DQD Engineering, we don’t just build systems—we build reliability, efficiency, and long-term performance.

Supporting systems across
the globe

1992

Dyson, Marlborough

Dyson Test unit in stainless Steel. The Dyson Designer visited the Procip work shop asking could we fabricate a test rig which was successful.
When The rig was built the designer told us its job was to test against the hoover model.

Procip, Location

Design and develop mobile CIP skid
Standard CIP product line

1993

Procip, Location

Procip developed a standard CIP Skid and Vessel, this system can be utilised to suit a cleaning application with cleaning detergent dosing and the facility to heat.

1994

Procip, Location

One of the first companies to use orbital welding technology   ensuring the correct levels of Sulphur for ASMEBPE piping when welding for pharmaceutical clients AstraZeneca & GSK.
Other first’s for ASMEBPE piping would be use of Pure Argon Shielding gas for tig welding. PFA hose to deliver Pure Argon.

Purge bungs were also a first  for the orbital welding. ZDT valves made in the work shop as the vendor was unable

Ferrite testing, also referred to as a ferrite scope test, is a rapid

1995

SmithKline and Beecham, Harlow

WFI and Purified water system

Manufacturer of the following:-

  • RO generation system using RO and CDI technologies, twin RO set.
  • Pure Water system, supply and manufacture 2x Purified water loops using 2x approx. 3,000ltr vessel. Controls used Alan Bradley PLC with Alan Bradly text display. PLC controlled.
  • WFI system, supply and manufacture 2x Purified water loops using 2x approx. 3,000ltr vessel. Controls used Alan Bradley PLC with Alan Bradly text display. PLC controlled

1996

Kavli – Primula Cheese, Gateshead

Manufacturer

  • CIP
  • Process vessel
  • Mixing systems
  • Complete pipe work installation
  • Main M&E Contractor
  • Plant steam
  • Process water
  • Main plant control system

Scottish Blood, Scotland

Protein Fractionation Centre
Turnkey supply of new CIP system

1997

New Parenteral Technology Plant, Germany

Thermal Transfer

  • Turnkey supply of Purified Water
  • Water for Injection and Pure Steam systems, including Design, Build, Installation
  • Commissioning and Validation
  • Supply of Finn-Aqua Still and PSG

1998

Sofratulle plant

Turnkey supply of new CIP system

1999

AZ, Loughborough

HFA system

Manufacturer of the following:-

  • 264 HFA skid and vessels.
  • Loading vessel platforms

2000

Boots, Nottingham

Manufacturer of the following:-

  • 3 loops, 3 vessels
  • 2 x Skids
  • Mitsubishi PLC and HMIs

2001

Protherics UK, Cardiff

Snake Venom Vaccine production facility
New process system, buffer distribution, vessels, CIP and clean water utility upgrades

2001

Boots, Nottingham

The Boots Company, Medicines, Dentals and Toiletries

  • Turnkey supply of 3 x Purified Water systems , each using Ozone as a form of sanitisation, including Design, Build, Installation,
  • Commissioning and Validation
  • 3 loops, 3x 30K vessels
  • 2 x Skids 1 Skid with 2 loops
  • Mitsubishi PLC and HMIs

2002

Moorfields Eye Hospital, London

CIP system.

2003

Ivax, Liverpool

WFI storage and distribution with remote interface panels, supply Pure Steam generator and WFI Still.

2006

Royal Preston Hospital, Preston

  • WFI Storage and Distribution system
  • Purified Water Storage and Distribution system
  • Recommission of Pure Steam and WFI Generators

2008

Huddersfield Royal Infirmary, Huddersfield

WFI Storage and Distribution System with cold user points.

2009

Cardiff NHS, Cardiff

WFI System.

2012

OCD

VCS System.

Background – Present Cleaning Method
The vessels are cleaned in the wash bay which operates on a flow through basis. The vessels are stored on the ‘dirty’ side until they are ready for washing in the wash or ‘wet’ area. Once they are washed they are moved to the ‘clean’ area where they are stored until they are required for production. The method of cleaning is as follows:
The project consists of the design, installation and commissioning of two vessel cleaning systems.
The system is to consist of the following identifiable components:
Two vessel cleaning system skids will be located on the plant deck and will provide the solutions required to clean the process vessels

2013

Activis

Purified Water System Ozone 
upgrade

2014

MoorFields

WFI System upgrade, modification to the WFI vessel and supply of new distribution skid.

2015

CPI Darlington

Supply of Purified Water distribution loop system Installation, Commissioning and Validation

2017

Aquafab

Manufacturer of:

  • RO skids, during 2016 DQD manufactured approx. 5
  • Pharmaceutical high specification RO,
  • CDI generation skids ranging from 500L/Hr to 12000 L/Hr

2018

Patheon, Swindon

Flexeon Project Platform and Skids.

2020

ThermoFisher, Glasgow

LVL Expansion System

3 Vessels Including Chemical addition and CIP with control of a WFI loop.

2020

Vmic, Oxford

WFI system and Platform.

2023

CPI, Darlington

WFI, RO and Utilities system installation inside container.

2024

Astrea, Isle of Man

RO Storage, Distribution Skid and loop.

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