Check the listing for details. Norma Valve Pressure Reducing Valve 3:1/4 inch YH1003 RRP AUD $4,254 Brand New. Condition: Brand New. Listed at 2402.96 USD. Norma Valve - Ratio Press - Flanged - Red - 3:1 - 4inch - YH1003Mfr#: YH1003 FeaturesReduces pressure by a designated ratio to protect applications from pressure induced damage, commonly installed in high rise apartments50 years of development and installation history worldwide also reduces surge and water hammerValve is tamper proof in situ, but compact design makes servicing easy with only one moving part the design promotes minimal head loss with superior fluid dynamicsCan be installed in any orientation but direction of flow is specificConfiguration is flexibleRegulating water pressure in high rise apartments and in main supply lineCopper alloy body, spigot, and seat retainerSeat and O-Rings are made of (NBR) Rubber to comply with BS 6920, which can be flipped to extend its lifePiston is machined 316 stainless steelBS4504 Table E FlangeStandard operating temperature range: +5°C to +80°CStandard operating pressure range: 300k – 2,000kPaIn-line Y-Strainer and at least one union are recommended upon installationFully serviceable, recommended overhaul period is every five yearsApplicationsIdeal for use with fire hydrants, mines, oil rigs, altitude or anyother situation where an outlet pressure differential makes the system vulnerableThis item was sourced as part of a one-off. I do not represent the manufacturer of this valve nor am I a technical expert on the item. It is recommended that you satisfy yourself prior to purchase as to its suitability. This is a new item, unused & undamaged.