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Siamp 99T 1/2" Inlet Ball Valve Bottom Entry - BRASS Thread

Manufacturer: Siamp
The Siamp COMPACT 99T BP Low Pressure 1/2″ Brass Inlet Valve (30 9921 10) is a WRAS-certified, quiet-fill, bottom-entry valve built for reliability and efficiency. Featuring adjustable height, anti-backflow protection, and hydraulic closure to prevent water hammer, it suits both ceramic and plastic cisterns. Ideal for low-pressure systems, it includes a 10-year guarantee and is available with 1/2" brass, 3/8" brass, or 1/2" plastic connections—perfect for original installs or replacements.
SKU: 30992110 (10)
Availability: 8 in stock
£42.48 incl tax
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  • Low pressure

  • Compact with telescopic adjustment

  • Can be installed into ceramic or plastic cisterns, recessed or low level cisterns, for replacement or as original equipment

  • Hydraulic closure (no water hammer shock)

  • Adjustable water level

  • Quiet

  • Anti-backflow function

  • 3/8” brass, 1/2” brass and 1/2” plastic end-fitting:

    • 3/8” brass :
      flow rate : 0.21l/s at 3 bars
      Pressure function range from 0.1 to 10 bars

    • 1/2” brass :
      flow rate : 0.23l/s at 3 bars
      Pressure function range from 0.1 to 10 bars

    • 1/2” plastic :
      flow rate : 0.22l/s at 3 bars
      Pressure function range from 0.1 to 10 bars



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