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Sagittarius Tap Guide

  • Mechanical Valve ;- Traditional type valve that uses a rubber washer to create a watertight seal.
  • Ceramic Disc Valve ;- Intelligent technology and design. A valve that uses hard-wearing ceramic discs to create a watertight seal. Popular due to low maintenance and easy quarter or half turn action to operate.
  • Ceramic Disc Cartridge ;- Intelligent technology and design. Cartridge made from hard-wearing ceramic discs, typically found in single lever water taps. A very popular choice for all households due to the low amount of maintenance required and ease of use.
  • Single Flow - Hot and cold water mixes within the mixer body. To comply with Water Bylaws fittings such as this require single check valves fitted to each inlet.
  • Dual Flow - Hot and cold water mixes together at the outlet of the water tap. A check valve is not required.
  • Check Valves - Check Valves, or Non-Return Valves, are required to comply with Water Bylaws on certain fittings. They allow water to flow in only one direction. Please contact your local water authority for details.
  • Pressure Reducing Valves - Required on systems using mixer taps and with a high-pressure imbalance (typically with a greater ratio than 5:1).
  • Minimum Pressure - Minimum water pressure required for tap/shower/etc. to function adequately. Pressure depends on the type of fitting and type of plumbing system installed. As a general guide, low-pressure systems are gravity fed and less than 1.0 bar (1-metre vertical distance between shower outlet and base of cold water tank is approximately 0.1 bar), high-pressure systems are mains fed, pumped or combination boilers.
  • Maximum Pressure - Maximum safe working water pressure. All guarantees are void if this is exceeded and fittings may get damaged.
  • Water Bylaws - All fittings must be installed to comply with these to ensure basic safety and legal compliance. Please contact your local water authority for details.
  • WRAS (Water Regulations Advisory Scheme) - Product approval process. Fittings are checked for mechanical reliability and material safety.