Sanspar C.I Swing Check PN16 Brass Trim 401A Check Valves 125mm

C.I Swing Check PN16 Brass Trim: 401A

Key Specifications & Features

From the datasheet and web references:

• Body material: cast iron (for FIG 401A) per the Sanspar spec. engnet.co.za+1

• Flange drilling to BS4504 (British Standard for flanges) and design per BS5153 for check valves. engnet.co.za+1

• PN16 pressure rating: means rated for approximately 16 bar nominal pressure (in standard conditions).

• The valve is for water service (as per the “Available medium: Water” in the datasheet for the sister Fig 401S variant). engnet.co.za+1

• The option for external lever & counterweight (for applications where more rapid closure or control over water hammer is required) is referenced.

  Applications & Use-Cases

  • Typically used in pipelines where backflow prevention is needed — e.g., pump discharge lines, water supply mains, fire-water systems, etc.

  • Because it’s cast iron and flanged PN16, it’s suited to reasonably large diameters (not just small plumbing).

  • The fact it’s built to BS standards means it can integrate with standard flanged connections in industrial settings in South Africa / globally.

  • In South Africa, local supply via Sanspar Engineering Sales (Pty) Ltd indicates availability and local support.