DESCRIPTION

• • “PN10”: Nominal pressure rating of 10 bar (roughly). That’s the maximum working pressure under stated conditions. Ensure that your system pressure stays below this.

  • “BS3464”: Indicates this is a cast iron industrial pattern gate valve standardised for water/works applications, giving some confidence in manufacturing tolerances, design, etc.

  • “Industrial Pattern”: Suggests a heavier duty design compared to general service; may imply cast iron body, wedge gate design (vs resilient seated or other types).

  • “Wedge Gate Valve”: The gate inside is a wedge shape (or solid wedge) which when lowered closes the valve. Good for on/off (isolation) duty rather than throttling.

  • “NRS”: Usually “Non-rising spindle” or “Non Rising Stem” (depending on region). If the listing says “Non rising spindle” then the stem does not move vertically in the bonnet as the valve opens/closes — only the disc/gate moves. The user may have to check if their version is rising or non-rising. In the listing the supplier provides both rising and non-rising spindle versions

    Available with rising or non-rising stem Face to Face to BS3464
     Pressure Rating: 10bar  Maximum Working Temperature: 100°C Available flange drilling: BS10 Table D or BS4504 Table 10
    MATERIALS LIST  Body-Cast Iron with brass seat ring,  Bonnet-Cast Iron BS250, Gate-Cast Iron with brass seat ring, Stem nut-Brass
    Spindle-Stainless Steel
    Bonnet gasket-Graphite or Rubber, Gland packing-Graphite

    C.I Industrial Pattern PN10 NRS BS3464:  549L