31711430 - Valve tubes

CPV code 31711430 in the EU Common Procurement Vocabulary refers to Valve tubes. It sits at level 6 of the CPV hierarchy as a subcategory within the 31 division. This code is nested directly under 31711400, narrowing the broader category into the specific area of valve tubes. As a leaf code, 31711430 has no further subdivisions and represents the most precise classification available in this branch — buyers should reference it directly in tender notices when the procurement primarily concerns valve tubes. Contracting authorities across the EU use 31711430 in TED notices and national procurement portals to signal that a tender relates to valve tubes.