NHL is a world supplier to the nuclear industry. Offering a complete range of valves, plus full engineering support from application engineering and detailed specifications to design and inspection.

Quality assurance is recognized as a management function, administered by engineering and quality assurance departments which operate independently of the manufacturing and sales functions, thus ensuring the authority and integrity of their activities.

Quality control is implemented through a comprehensive system of works instructions using a quality manual written to reflect requirements. Quality plans, drawings and quality procedures control all activities from order review through to final testing and delivery to ensure special customer requirements are achieved.

As part of the vigorous quality control procedures adopted for the manufacture and assembly of all nuclear valves, material traceability of pressure-retaining parts and full clean room assembly is standard.

Newman Hattersley Limited Quality Assurance Program meets the following requirements:

CSA CAN3 Z299.2-1985
CAN CSA N285.0-95
ASME SECTION III NCA 4000
ASME NQA-1-89, 1a89, 1b91, 1c92
10CFR50 APPENDIX B
10CRF21 ISO 9001:2000
ASME III CLASS 1, 2, 3, Latest Edition

Click here to view our certifications in PDF Format:
QA 369
QA 176
ISO 9001-2000
ISCIR Romania
Korea Certificate
ISO 14000