C.I Swing Check PN16 Brass Trim: 401A
Key Specifications & Features
From the datasheet and web references:
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Body material: cast iron (for FIG 401A) per the Sanspar spec. engnet.co.za+1
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Flange drilling to BS4504 (British Standard for flanges) and design per BS5153 for check valves. engnet.co.za+1
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PN16 pressure rating: means rated for approximately 16 bar nominal pressure (in standard conditions).
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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
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The option for external lever & counterweight (for applications where more rapid closure or control over water hammer is required) is referenced.
Applications & Use-Cases
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Typically used in pipelines where backflow prevention is needed — e.g., pump discharge lines, water supply mains, fire-water systems, etc.
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Because it’s cast iron and flanged PN16, it’s suited to reasonably large diameters (not just small plumbing).
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The fact it’s built to BS standards means it can integrate with standard flanged connections in industrial settings in South Africa / globally.
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In South Africa, local supply via Sanspar Engineering Sales (Pty) Ltd indicates availability and local support.
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