FTI Mag-Drive Pumps
The Zero-Leak Standard for Chemical Transfer
Sealless magnetic drive designs eliminate the mechanical seal — the #1 cause of pump downtime. From flooded suction to deep-lift self-priming and ANSI-dimensional pumps, FTI delivers leak-proof, emission-free performance for corrosive and hazardous chemicals.
30+ years spec experience. Send James the process data and get a real answer — not a catalog page.
Request a Spec Review →Doing It Yourself vs. Specifying With James Riggins
| Factor | Doing It Yourself | With James Riggins |
|---|---|---|
| Pump Selection & NPSH Check | 10–24 hrs | 2–4 hrs (60–80% saved) |
| Startup & Commissioning | 2–3 days troubleshooting | < 1 day with correct curve & materials |
| Chemical Compatibility | Risk of mis-spec | Verified PP/PVDF/ETFE lining |
| Maintenance Downtime | Seal failures & leaks | Sealless magnetic drive reliability |
The FTI Mag-Drive Pump Lineup
DB Series (Flooded Suction)
<1–221 GPM · 20–201 ft / 90 psi · >150 cP · PP 180°F / PVDF 220°F · Highest efficiency in class (to 70%)
SP Series (Self-Priming)
<1–253 GPM · 20–221 ft / 90 psi · >50 cP · Lift: 25 ft (7.6 m); primes 18 ft in 90 sec
MSDB Series (Multi-Stage)
1–69.8 GPM · 204–306 ft / 135 psi · >150 cP · PP/PPS 180°F / PVDF/PPS 220°F · High-head, low-flow filtration/spray
KC / MSKC Series (Compact Multi-Stage)
to 60 GPM · to 100 ft / 80 psi · to 100 cP · Compact multi-stage, small footprint
UCR Series (ANSI Dimensional)
1–1450 GPM · to 492 ft / 300 psi · >200 cP · Max Temp 250°F · Ductile iron with pure ETFE barrier & lining
UCP Series (ANSI Dimensional, PP/ETFE)
to 450 GPM · to 330 ft / 300 psi · >200 cP · Max Temp 180°F · Pure, unfilled PP barrier + reinforced shell
UC Legacy Series (Original ULTRAChem®)
Tough ductile iron with ETFE lining · ANSI dimensional, sealless mag-drive · Extreme corrosion protection & leak-free duty
Finish Thompson MSDB: multistage sealless mag-drive for high head, low flow
The MSDB is Finish Thompson's multistage sealless mag-drive pump for high-head, low-flow chemical duty. Built on the DB11/15 platform, the MSDB2 (2-stage) reaches about 204 ft and the MSDB3 (3-stage) about 306 ft at 60 Hz, both near 70 gpm maximum, with a 135 psi pressure limit. Wetted materials are polypropylene/PPS (to 180°F) or PVDF/PPS (to 220°F).
It is not self-priming: install it on a flooded suction and keep NPSH available at least 2 ft above NPSH required. With a carbon bushing it tolerates occasional dry running; PTFE, ceramic and silicon-carbide bushings cannot run dry, and Finish Thompson still recommends a power monitor.
Size it right before you buy
The Finish Thompson MSDB pump-review checklist: carbon-bushing run-dry limits, NPSH margin and the suction-piping rules that decide pump life.
Enter flow, head, SG and plant air. See the air pressure and SCFM your duty needs on a real FTI Air FT30P curve, then get the worksheet by email.
Frequently Asked Questions
Why choose a sealless mag-drive pump over a traditional sealed pump?
Sealless magnetic drive designs eliminate the mechanical seal — the #1 cause of pump downtime — providing zero-emission, leak-free performance for corrosive and hazardous chemicals.
What's the difference between the DB and SP series?
DB Series is a flooded-suction design with the highest efficiency in its class (up to 70%), while SP Series adds self-priming capability with a 25 ft lift and 18 ft prime in 90 seconds.
What temperature and pressure can UCR series pumps handle?
UCR Series (ANSI-dimensional, ductile iron with pure ETFE lining) handles up to 492 ft of head / 300 psi and up to 250°F, the highest-rated series in the FTI mag-drive lineup.
Get this spec'd right the first time
Send LibertyCES your process conditions — James matches technology, materials, and controls to your exact application.
Ready to buy or need a fast answer? Call, text, or email James directly — (559) 395-5500 · james@libertyces.com.