Quality
How our flanges are made, checked, marked and documented, from the material that comes in to the document pack that goes out with your order.
Certified quality system
Our quality management system is certified to ISO 9001:2015 by Assurance Quality Certification LLC.
- Standard
- ISO 9001:2015
- Certificate number
- 26UQAE63
- Certification body
- Assurance Quality Certification LLC
- Scope
- Manufacturing, export and supply of industrial MS (mild steel) and CS (carbon steel) flanges
- First issued
- Valid until
The certificate stays valid with a surveillance audit each year, the next by 7 September 2027. You can check it on the certification body’s client search with the certificate number, or ask for a copy with your enquiry.
From blank to bolted joint.
Eight steps from material to your site. Choose a step to see the flange at that stage.
4. Drilling
Bolt holes on the bolt circle.
- Drawing
- 6" Class 150 weld neck
- Stage
- Drilled
- Step
- 4 of 8
Inspection
Dimensions, face finish and hardness, checked at three points.
Incoming material
Material is checked against the mill certificate for grade, heat number and size before it goes into production.
In process
Bore, facing, bolt circle and bolt-hole positions are checked at each machining stage.
Final inspection
Every lot is inspected before dispatch, and the results are recorded against the order.
Documents with every order
- EN 10204 3.1 material test certificate
- Dimensional inspection report
Sample 3.1 certificate
A real certificate, with the customer and order details blacked out.
Marking
Each flange is hard-stamped to MSS SP-25 with the maker’s mark, size, class, standard, material grade and heat number, so it can be traced to its material certificate.
SSMT 6" 150 RF SCH40 A105N HT 24A117 B16.5
A sample stamp for a 6" Class 150 weld neck. HT 24A117 is a sample heat number. See each part explained
[CONFIRM: marking format and the mark we stamp]
Third-party inspection
Your inspector is welcome before dispatch, from the agency you choose: for example BV, SGS, TÜV, Lloyd’s Register or DNV.
Send an enquiry with your inspection requirements.