GF Signet 2552 Metal Magmeter Flow Sensor

Stainless-steel insertion magmeter for large conductive-liquid lines (DN50…DN2550 / 2…102 in.) when a metal body and remote-mount electronics are required.

Key advantages

Large-pipe coverage — installs into DN50…DN2550 (2…102 in.).
0.05…10 m/s operating range — same velocity window as the 2551 family for conductive liquids.
Metal construction — stainless-steel body with 316L SS electrodes; FKM O-rings.
Remote-mount sensor — insertion-depth options (9.4 in. / 14.8 in. class) with 1¼ or 1½ in. process connections (NPT or ISO).

Typical applications

Large water, wastewater, and industrial distribution lines needing an insertion magmeter in metal.
Conductive liquids where plastic insertion bodies are not preferred.
Systems hosting GF Signet instruments (8900 / 9900 / 9900-1BC / 9950).

Selection guide

Pipe size / velocity — DN50…DN2550 (2…102 in.); operating range 0.05…10 m/s (0.15…33 ft/s).
Body / electrodes — Stainless-steel body; 316L SS electrodes; FKM O-rings.
Mounting — Remote-mount depth codes (approx. 9.4 in. or 14.8 in.); process connection 1¼ or 1½ in. NPT or ISO.
Power — 5 to 26.4 VDC, 15 mA max (catalog listing).
Pressure — Catalog max pressure rating listed as PP 10.3 bar @ 25 °C / 150 psi @ 77 °F for the family reference; confirm metal-body derate for your line pressure and temperature on RFQ.
Host compatibility — 8900, 9900, 9900-1BC, 9950.
Minimum conductivity — Confirm with OEM for the ordered code (magmeter technology requires conductive media).

Common mistakes

Ordering a plastic 2551 fitting set for a 2552 metal process connection — connection size and depth codes differ.
Undersizing insertion depth for large pipe — pick the depth code that matches DN and fitting style.
Assuming the same pressure derate as PP bodies without checking metal/fitting limits.
Specifying a host that is not in the 8900/9900/9950 family without confirming the output interface.
Flow instruments · Flow buying guide

When to RFQ / what to tell us

Pipe size (DN50…DN2550 / 2…102 in.) and working velocity / flow.
Fluid conductivity, chemistry, temperature, and pressure.
Process connection (NPT vs ISO) and required insertion depth.
Host instrument (8900/9900/9950 / PLC), quantity, ship-to country.

Request a Quote · Get selection help

Specs

Spec	Value
SKU	20201
Brand	Georg Fischer / GF Signet
Model	2552
Product type	magmeter
Measuring range	Operating velocity 0.05 to 10 m/s (0.15 to 33 ft/s); pipe sizes DN50 to DN2550 (2 to 102 in.)
Output signal	Compatible with GF Signet 8900 / 9900 / 9900-1BC / 9950 hosts (per catalog)
Supply voltage	5 to 26.4 VDC, 15 mA max
Process connection	1¼ or 1½ in. NPT or ISO; remote-mount insertion depths approx. 9.4 in. or 14.8 in. by code
Wetted materials	Stainless-steel body; 316L SS electrodes; O-rings FKM
Notes	Catalog listing (gfps.com Type 2552). Confirm conductivity, pressure/temperature derate, and exact MFR code on RFQ.

Documents

GF Signet 2552 catalog data sheet (PDF)

FAQ

Q: How is the 2552 different from the 2551? A: The 2552 is the metal large-pipe insertion magmeter (DN50…DN2550) with stainless body and remote-mount depths; the 2551 covers DN15…DN900 with PP/PVDF body options.

Q: Which process connection do I need? A: Codes cover 1¼ or 1½ in. NPT or ISO with different insertion depths. State pipe OD/schedule and preferred thread standard in the RFQ.

Q: What should I send for a quote? A: Pipe size, velocity/flow, conductivity, T/P, connection/depth preference, host, quantity. Compatible with systems using GF Signet 2552 if you need a drop-in check — we do not claim authorized-dealer status.