About us

Abacus Valves was established in 1988 to manufacture and supply wafer check valves to the process and energy industries. Since then the company has grown consistently through our ability to understand and meet the customer's needs, cost effectively and on time.

Through many years of experience and specialisation we have developed the most comprehensive range of wafer valves in the UK. When this is coupled with the capability to manufacture our range from an extensive range of materials, you can be confident that Abacus is your one stop shop for all your wafer check valve needs.

Design and Development

Our in-house Design and Development team are continually re-evaluating, improving and adding to our product range using the very latest CAE techniques. Abacus Valves operates with a fully integrated 3D CAD, Finite Element Analysis (FEA) and Computational Fluid Dynamics (CFD) software package. In addition, we are able to utilise the same skills and experience to undertake design and manufacturing projects, allowing us to cater for any specialist application.


Our highly skilled and technically trained Sales Team provides technical and commercial expertise from our Kilbirnie factory.  We are pleased to support customer enquiries and offer solutions ranging from the most express deliveries through to the most complex of applications. We can provide on-site technical assistance when required and are aligned to a network of stockists/distributors who can offer complete valve packages.

Manufacturing Resources

Machine Shop

Abacus have invested both in modern CNC and conventional machine tools. As part of our on-going programme designed to enable us to respond quickly and efficiently to the highest standards of craftsmanship.

Positive Material Identification

XRF Analyzer for Positive Material Identification (PMI) available to all clients on request.

Non-Destructive Examination

Abacus have 4 PCN Level II qualified in-house technicians for DPI & MPI examinations.


  • In-house ASME IX Qualified Welder’s.
  • Approved procedures for Stellite® weld overlay onto carbon steel, austenitic stainless steel, duplex and super duplex.
  • Approved procedures for Ultimet weld overlay onto duplex & super duplex.
  • Laboratory testing carried out at Babcock International, Element & Applus.
  • Independent inspection reports by Babcock International & AKER Solutions.


100% of valves are pressure tested to either API 598 as standard or to the clients requirements.

2 Ventil Automated Test Rigs

    • 2” – 24” Wafer Pattern (between hydraulic clamps)
    • Ventil automated Hydraulic test pressures up to class 2500
    • Ventil automated Gas shell test pressure up to 200 BarG
    • Long Pattern, Hub Ended and large diameter valves tested between blank flanges, pressure supply from automated rig or independent HP pump (up to 1320 BarG).
    • Low pressure pneumatic testing (up to 7 BarG)
    • Pressure regulation
    • Reverse osmosis system for water supply
    • Graphical output from automated rig
    • Bubble counter


Commitment to continuous improvement through employee participation, is an underpinning principle of our business approach. Quality assurance is the vehicle we use to carry through this improvement. All valves are manufactured to the applicable national standards while Abacus itself operates a quality system independently accredited to ISO 9001:2015 & PED/PESR Module H issued by both EU & UK Approved Body.

Material & Product traceability are key to our service offing clients bespoke digital management system where full traceability for your product is accessable from raw materials through to test and finished product. 

Our People

We believe that our employees are the heart of our business.  We endeavour to recruit, train and retain the best staff through a well-documented commitment towards employment, internal career development, multi-skilling and a team-based philosophy focussed on maximising our Customer Experience with Abacus.


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