Sanspar Spare Ball Check Valve Balls 250mm

Spare Ball Check Valve Balls: BCVB

What it is:

• • • It’s a ball check valve rated at PN 16, meaning it’s designed for a nominal pressure of 16 bar (depending on temperature, media, etc).

    • The “ball check” style uses a ball that moves to allow flow in one direction, and when flow reverses it seats to prevent backflow. According to SANSPAR’s spec sheet this type offers “silent closing, full bore, large flow” and “50 % lower head loss than swing check valves”. EngNet+1

    • Made by SANSPAR under their Uni-Flo range: the  “Ball Check Valve” with body material, cover, etc for PN16 rating. SANSPAR+1

  • Key Specifications & Materials

    From the spec sheet of SANSPAR / Uni-Flo: SANSPAR

    • Pressure rating: PN16 (meaning 16 bar nominal)

    • Sealing (seat) test pressure: 1.76 MPa (~17.6 bar)

    • Strength (shell) test pressure: 2.4 MPa (~24 bar)

    • Materials:

      • Cover: GG25 / GGG40 (which are cast iron/ductile iron grades) SANSPAR

      • Body (implied) likely similar cast iron/ductile iron (GG25/ GGG40)

      • Ball: Carbon steel with rubber encapsulation (per the list) SANSPAR

    • End connections: Typically flanged (since PN16 rating). For check valves this is standard for industrial piping.

    • Suitable installation: According to older spec: “horizontal or vertical” for the ball check version.

  • Features & Advantages

    Here are some of the benefits that this style (ball check, PN16, cast iron) brings:

    • Lower head loss: The spec claims “50% lower head loss than swing check valves” because the ball check allows full-bore flow and minimal obstruction.

    • Silent closing: Because the ball seats quickly upon flow reversal, there is less “slam” compared to some swing check valves.

    • Full bore: The flow path is less restricted, which is good for systems where you want minimal pressure drop and high flow capacity.

    • Versatile installation: Horizontal or vertical mounting possible (depending on model) — helpful when space/orientation is restricted.

    • Industrial grade: With cast iron / ductile iron body and flanged ends, this is suitable for heavy duty / industrial piping systems (waterworks, mining, etc). SANSPAR markets it under industrial valves for “high-pressure, high-demand applications”. SANSPAR+1