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Valves Lthw
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School Output Specification - GOV.UK
assets.publishing.service.gov.ukLTHW Valves, Fittings and Components 22 3.9.2. Domestic Hot and Cold Water System Valves, Fittings and Components 23. 4 3.9.3. Reference Standards for Valves, Fittings and Components 25 4. Mechanical Services 27 4.1. Mechanical Services Overview 27 4.2. Plant Room Requirements 27 4.3. Heating Systems 28