Grundfos 12mm Single Spring Set Screw Mechanical Seal — VGMG-1400 Equivalent (CNP CDL Compatible)

Direct-fit 12mm mechanical seal replacement for Grundfos-style / vertical multistage pump applications that use a single-spring, set-screw drive. Commonly used on CNP CDL/CDLF pump applications and cross-referenced as VGMG-1400 (also searched as VGMG 1400 or VGMG1400) for fast, accurate ordering. Built with a rugged Tungsten Carbide / Tungsten Carbide face set and Viton (FKM) elastomer for dependable sealing in demanding service.

At a glance

• Shaft size: 12mm

• Drive type: Single spring with set screw

• Face materials: Tungsten Carbide / Tungsten Carbide (TC/TC)

• Elastomer: Viton (FKM)

• Common application: CNP CDL series pumps

Cross Reference / Alternate Part Numbers

VGMG-1400 • VGMG 1400 • VGMG1400 • 12mm set screw mechanical seal • CNP CDL 12mm mechanical seal

Fitment note: Always verify shaft size (12mm) and match the set-screw single-spring design against your existing seal before ordering.

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