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Flygt Pump Repair Kits

  • Flygt 3127 pump repair kit with carbon and tungsten carbide mechanical seals, Buna-N O-ring set and optional Griploc pre-set seals

    Flygt 3127 Pump Repair KitStandard or Griploc Seals, Fits 3127.090, .161, .181, .185, .350 and More

    Flygt 3127 Pump Repair KitStandard or Griploc Seals, Fits 3127.090, .161, .181, .185, .350 and More

    Item #SH-3127

    Flygt 3127 Pump Repair Kit — Mechanical Seals & O-Ring Set, Standard or Griploc

    Direct-fit aftermarket repair kit for the Flygt 3127 submersible wastewater pump, built to OEM-equivalent standards or higher. It replaces the primary sealing components serviced during routine maintenance and rebuilds. Choose traditional seals or the Griploc pre-set upgrade.

    Flygt 3127 Repair Kits – Choose Your Kit
    Both kits fit the Flygt 3127 builds listed below. Find the version you need, then select the same name from the dropdown above.
    Kit What’s included Choose this if
    Standard kit Upper seal: Tungsten Carbide / Tungsten Carbide / VitonLower seal: Tungsten Carbide / Tungsten Carbide / VitonComplete O-ring set You want traditional separate-component seals at the lowest price, and you are comfortable setting working length.
    Standard kit with Griploc Griploc pre-set upper and lower seals, stainless steel seat with tungsten carbide insertComplete O-ring set You want a pre-set working length — no shimming or measuring — and the most repeatable install.
    Not sure which kit you need? Call or text 561-414-1046 with a photo of your pump nameplate — no purchase required.

    On the Griploc option: to keep pricing reasonable while maintaining reliable performance, we supply this kit with a stainless-steel seat carrying a tungsten carbide insert. This seat style was also used on previous-generation Griploc seals and gives a durable sealing surface without the cost of a solid tungsten carbide seat.

    Applications

    • Flygt 3127 — 3127.060, 3127.070, 3127.090, 3127.091, 3127.095, 3127.160, 3127.161, 3127.180, 3127.181, 3127.182, 3127.185, 3127.190, 3127.191, 3127.350, 3127.390, 3127.760, 3127.761, 3127.770

    Important — two O-ring sets exist for this pump

    Flygt supplies 80 32 33 for standard 3127 versions and 80 32 74 for the D, F and SHT versions. They are not interchangeable. If your pump is a D, F or SHT build, tell us at checkout under “Pump Model Notes” or call before you order, and we’ll supply the correct set. If you’re not sure which you have, send a photo of the nameplate to info@sealhouseusa.com or call or text 561-414-1046 — no purchase required, our seal specialists will match it.

    Nameplate prefixes you may see: NP (wet well on guide bars), NS (free-standing transportable), NT (vertical dry-installed) and NZ (horizontal dry-installed), followed by a head class — LT (low head), MT (medium head), HT (high head) or SH (super high head) — and an impeller curve code such as 245–249, 425 or 488–489. Older units may read CP 3127 or CS 3127.

    Griploc — what it is

    Griploc (also searched as GripLoc) is Flygt/Xylem’s pre-set mechanical face seal for submersible pumps. The seal faces hold flatness for excellent leakage control, and a patented Griploc™ locking system secures the seal to the shaft without set screws, removing the risk of shaft damage. Installation uses one procedure across sizes with no special service tools — a standard screwdriver and the mounting tool included with each seal. Current Griploc seals use an all-metal design with a torque-setting screw on the cartridge, for setting the seal rather than gripping the shaft; earlier versions used a plastic shell with a large snap ring.

    Traditional or Griploc?

    Traditional separate-component seals — familiar, proven format at a lower component cost. The right choice when you have the tools and experience and want the lowest initial price. Best for routine rebuilds with experienced technicians in standard wastewater duty.

    Griploc seals — pre-set working length, so no shimming or measuring, which makes installs faster and more consistent. No special tools needed. Excellent leakage control and robust against heat, wear and clogging. Best for minimising downtime, mixed-skill crews, abrasive or variable conditions, or whenever you want the most repeatable outcome.

    Quick pick: prioritize installation speed and consistency, choose Griploc. Prioritize lowest upfront cost and you’re comfortable setting working length, choose Traditional.

    Explore our full line up of Pump Repair Kits

    Looking for more? Check out our Shaft seals, Parts/Accessories & OEM seals

    Have questions?- Call us anytime-we’re here to help 

    Weight 4 lbs
    Dimensions 6 × 6 × 4 in
  • Flygt 3152 and 3140 pump repair kit with upper and lower tungsten carbide mechanical seals, Buna-N O-ring set and wear protector

    Flygt 3140 Pump Repair KitFits 3140.090 and 3140.180

    Flygt 3140 Pump Repair KitFits 3140.090 and 3140.180

    Flygt 3140 Pump Repair Kit — Mechanical Seals & O-Ring Set

    Direct-fit aftermarket repair kit for the Flygt 3140 submersible pump. It replaces the primary sealing components serviced during routine maintenance and rebuilds, restoring leak-free operation and cutting downtime. Both 3140 builds — the .090 and the .180 — take the same sealing set, so one kit covers the series.

    What’s included

    • Upper mechanical seal: TC/TC/VIT — Tungsten Carbide / Tungsten Carbide / Viton (Flygt reference 640 63 30, Type M Active)

    • Lower mechanical seal: TC/TC/VIT — Tungsten Carbide / Tungsten Carbide / Viton (Flygt reference 384 00 09, Type S)

    • Complete O-ring set: Buna-N (Nitrile / NBR) — Flygt O-ring kit reference 80 32 49

    Applications

    • Flygt 3140 — 3140.090, 3140.180

    The Flygt C 3140 is a mid-size submersible C-pump built around the Flygt Nevaclog impeller, whose open channel design lets stringy solids pass instead of collecting on the vane. It handles municipal and industrial wastewater, sewage, lift-station duty, drainage and raw water transfer. Motor ratings run roughly 8.8 to 9 kW (P2), with 100 mm, 150 mm and 250 mm discharge options. A D 3140 drainage version is also in service and uses the same sealing components.

    Both builds are covered by Flygt basic repair kit 601 89 31, which uses the same seals, O-ring kit and wear protector supplied here.

    Prefixes and codes on the nameplate: CP (semi-permanent wet well on twin guide bars), CS (free-standing transportable with pipe or hose connections), CT (vertically mounted permanent, flanged) and CZ (horizontally mounted permanent, flanged). Head classes are LT (low head), MT (medium head) and HT (high head), followed by an impeller curve code — commonly 452 or 454 on 100 mm discharge, 432, 434 or 436 on 150 mm, and 610, 612 or 614 on 250 mm.

    Add your full model number at checkout under “Pump Model Notes”. Not sure of your build? Send a photo of the nameplate to info@sealhouseusa.com, or call or text 561-414-1046 — no purchase required, our seal specialists will match it.

    Also fits the Flygt 3152: the seals in this kit are the same seals used in our Flygt 3152 Pump Repair Kit. The O-ring set is what differs between the two, so order by your pump model rather than by seal.

    Explore our full line up of Pump Repair Kits

    Looking for more? Check out our Shaft seals, Parts/Accessories & OEM seals

    Have questions?- Call us anytime-we’re here to help 

    Weight 4 lbs
    Dimensions 6 × 6 × 4 in
  • Flygt 3152 and 3140 pump repair kit with upper and lower tungsten carbide mechanical seals, Buna-N O-ring set and wear protector

    Flygt 3152 Pump Repair KitFits 3152.090, .091, .120, .180, .181, .350 and Flygt 3120

    Flygt 3152 Pump Repair KitFits 3152.090, .091, .120, .180, .181, .350 and Flygt 3120

    Item #SH-3152

    Flygt 3152 Pump Repair Kit — Seals, O-Rings & Optional Wear Parts

    Direct-fit aftermarket repair kit for the Flygt 3152 series. It replaces the primary sealing components serviced during routine maintenance and full rebuilds, restoring leak-free operation and cutting downtime. Flygt built the 3152 in several configurations, but they all share the same mechanical seals and O-ring set — so this one kit covers the whole 3152 family, from the .090 through the .350 chopper build. Built to OEM-equivalent standards or higher, choose the standard kit, or add the wear protector and slurry guard for a full rebuild.

    Flygt 3152 Repair Kits – Choose Your Kit
    Both kits fit all Flygt 3152 and 3120 builds listed below. Find the version you need, then select the same name from the dropdown above.
    Kit What’s included Choose this if
    Standard kit Upper seal: Tungsten Carbide / Tungsten Carbide / VitonLower seal: Tungsten Carbide / Tungsten Carbide / VitonComplete O-ring set Your wear protector and slurry guard are still in good condition and you only need to replace the seals and O-rings.
    Standard kit + wear protector & slurry guard Upper seal: Tungsten Carbide / Tungsten Carbide / VitonLower seal: Tungsten Carbide / Tungsten Carbide / VitonComplete O-ring setWear protector / lower seat holderLower rotary slurry guard You are doing a full rebuild, or the pump runs in abrasive or solids-heavy service.
    Not sure which kit you need? Call or text 561-414-1046 with a photo of your pump nameplate — no purchase required.
    Applications

    • Flygt 3152 — 3152.090, 3152.091, 3152.120, 3152.180, 3152.181, 3152.350

    • Flygt 3120 — 3120.090, 3120.180

    Flygt supplies these builds under three different basic repair kit numbers (601 89 18, 601 89 19 and 601 89 21), but those differ only in bearings and retaining rings. The mechanical seals, O-ring set and wear protector are identical across all of them, which is why a single sealing kit fits the entire series.

    Prefixes and codes you may see on the nameplate: CP, CS, CT, CZ for C-pumps in P, S, T and Z installations; FP, FS for F-pump chopper installations; LL for the L-pump. Head classes are LT (low head), MT (medium head), HT (high head) and SH (super high head), usually followed by an impeller curve code such as 432 or 616.

    Add your full model number at checkout under “Pump Model Notes”. Not sure of your build? Send a photo of the nameplate to info@sealhouseusa.com, or call or text 561-414-1046 — no purchase required, our seal specialists will match it.

    Explore our full line up of Pump Repair Kits

    Looking for more? Check out our Shaft seals, Parts/Accessories & OEM seals

    Have questions?- Call us anytime-we’re here to help 

    Weight 4 lbs
    Dimensions 6 × 6 × 4 in
  • Flygt 3201 and 3170 pump repair kit with upper and lower tungsten carbide mechanical seals, Buna-N O-ring set and wear protection ring

    Flygt 3201 & 3170 Pump Repair KitFits 3201.090, .091, .120, .180 and 3170.090, .180

    Flygt 3201 & 3170 Pump Repair KitFits 3201.090, .091, .120, .180 and 3170.090, .180

    Item #N/A

    Flygt 3201 & 3170 Pump Repair Kit — Mechanical Seals, O-Rings & Optional Gaskets

    Direct-fit aftermarket repair kit for Flygt C 3201 and C 3170 channel impeller pumps. It replaces the primary sealing components serviced during routine maintenance and full overhauls, restoring leak-free operation and cutting downtime. The 3201 and 3170 share the same seal and O-ring set across the standard builds, so one kit covers both families. Built to OEM-equivalent standards or higher. Choose the standard kit, or add the wear protection ring and gaskets for a complete rebuild.

    Flygt 3201 & 3170 Repair Kits – Choose Your Kit
    All three kits fit the Flygt 3201 and 3170 builds listed below. Find the version you need, then select the same name from the dropdown above.
    Kit What’s included Choose this if
    Standard kit – Upper seal: Tungsten Carbide / Tungsten Carbide / Viton (Flygt 683 14 31)– Lower seal: Tungsten Carbide / Tungsten Carbide / Viton (Flygt 384 03 10)– Complete O-ring set Your wear protection ring and gaskets are still in good condition and you only need to replace the seals and O-rings.
    Standard kit + wear protector – Upper and lower mechanical seals– Complete O-ring set– Wear protection ring / lower seat holder (Flygt 382 83 00) Your wear protection ring is worn, or the pump runs in abrasive or gritty service.
    Standard kit + wear protector & gaskets – Upper and lower mechanical seals– Complete O-ring set– Wear protection ring / lower seat holder (Flygt 382 83 00)– Gaskets (Flygt 384 79 00 and 646 59 00) You are doing a full rebuild and want every sealing part replaced at once.
    Not sure which kit you need? Call or text 561-414-1046 with a photo of your pump nameplate — no purchase required.
    Applications

    • Flygt 3201 — 3201.090, 3201.091, 3201.120, 3201.180

    • Flygt 3170 — 3170.090, 3170.180

    Build suffixes you may see on the nameplate: .180 standard, .091 Ex-proof (explosion proof) design, .280 stainless steel design, .290 stainless steel / Ex-proof design. Head classes are LT (low head), MT (medium head), HT (high head) and SH (super high head), and installation prefixes commonly read CP, CS, CT or CZ for P, S, T and Z installations.

    Stainless builds: the 3201.280 and 3201.290 use a different O-ring set and are not covered by this kit. Call or text 561-414-1046 and we’ll source the correct one.

    Important fitment note: Flygt plug-in seal assemblies can vary by build. Please enter your full pump model number at checkout under “Pump Model Number Notes” so we can confirm the correct configuration for your unit

    Add your full model number at checkout under “Pump Model Notes” so we can confirm the correct configuration. Some 3201 pumps were built with an alternative seal design — sending your nameplate or serial number lets us verify before we ship. Not sure of your build? Send a photo of the nameplate to info@sealhouseusa.com, or call or text 561-414-1046 — no purchase required, our seal specialists will match it.

    Explore our full line up of Pump Repair Kits

    Looking for more? Check out our Shaft seals, Parts/Accessories & OEM seals

    Have questions?- Call us anytime-we’re here to help 

    Weight 4 lbs
    Dimensions 6 × 6 × 4 in
  • Flygt 3231 pump repair kit, 90mm upper and 75mm lower mechanical seals with all three O-ring kits, fits Flygt 3231 and 5560.180

    Flygt 3231 Pump Repair KitFits Flygt 3231 and 5560.180

    Flygt 3231 Pump Repair KitFits Flygt 3231 and 5560.180

    Item #SH-3231

    Flygt 3231 Pump Repair Kit — Mechanical Seals & O-Ring Kits

    A direct-fit aftermarket repair kit for the Flygt 3231 submersible pump: the 90mm upper mechanical seal, the 75mm lower mechanical seal, and all three O-ring kits this pump takes. Flygt splits the O-rings for the 3231 across three separate kits — every one of them is in this box, so the pump closes up in a single order. Built to OEM-equivalent standards or higher.

    What’s included

    • Upper mechanical seal, 90mm — ball and drive spring design, metal shell. Replaces Flygt 617 99 02, superseding the older 617 99 04 and 337 77 04

    • Lower mechanical seal, 75mm — replaces Flygt 58 612 04

    • All three O-ring kits: replaces Flygt 83 05 65, 83 05 94 and 83 21 33

    Bearings are not included. Flygt’s own basic repair kit for this pump carries bearings and retaining rings as well; this kit is the sealing set, which is the part that fails.

    Applications

    • Municipal wastewater and sewage pumping, large lift stations and treatment plants

    • Storm water and flood handling

    • Raw water and process water transfer, irrigation

    • Sludge handling and industrial effluent

    • Cooling water duty

    The Flygt 3231 is a large submersible wastewater pump, 70 to 215 kW at 50 Hz and 90 to 335 hp at 60 Hz, on a 200mm / 8 in. discharge with a 250mm inlet. It runs four-pole at 1,490 r/min on 50 Hz and 1,790 r/min on 60 Hz, and six-pole at 990 and 1,195 r/min, with a three-blade cast iron impeller and replaceable insert rings. It is built as the N 3231 with the self-cleaning N-impeller and as the C 3231 with the channel impeller. The same 90mm upper seal is the part Flygt uses across much of its large-pump range, which is why this one also carries the 3300, the 7050 propeller pump and the 5560.180 sewage pump.

    Nameplates read N 3231 or C 3231 with an installation prefix — NP, NS, NT or NZ on the N-pump, CP, CS, CT or CZ on the C-pump — and a drive unit number. On the four-pole machines those are 605 35-29-4AA, 665 35-35-4AA, 665 35-45-4AA, 705 43-30-4AA, 735 43-44-4AA and 765 43-56-4AA; on the six-pole, 605 35-29-6AA, 665 35-35-6AA and 665 35-45-6AA. Curve codes are 53-470 at 50 Hz and 63-470 or 63-670 at 60 Hz.

    Flygt built the 3231 in more than one seal generation — this kit is the ball-and-drive-spring metal shell design. So enter your full model number and the drive unit number under Pump Model Notes at checkout and we check both before we pack. Easiest way: text a photo of the dataplate to 561-414-1046 and we will read them off it for you, no purchase required.

    Rebuilding one of the other large Flygt pumps? See the Flygt 3306, Flygt 3356 and Flygt 3300 repair kits — they share seal parts with this one but each takes its own O-ring set.

    Browse our full line of Flygt pump repair kits, or the complete range of pump repair kits, mechanical shaft seals and OEM replacement seals by brand. Call us anytime at 561-414-1046.

    Weight 3 lbs
    Dimensions 6 × 6 × 6 in
  • Flygt 3300 pump repair kit with upper and lower tungsten carbide mechanical seals and Buna-N O-ring set for 3300.090, .091, .180 and .181

    Flygt 3300 Pump Repair KitFits 3300.090, .091, .180, .181

    Flygt 3300 Pump Repair KitFits 3300.090, .091, .180, .181

    Item #SH-3300

    Flygt 3300 Pump Repair Kit — Seals, O-Rings & Optional Gaskets

    Direct-fit aftermarket repair kit for Flygt 3300 series pumps, built to replace the primary sealing components serviced during routine maintenance and rebuilds, restoring leak-free operation and reducing downtime. Fits across the 3300 series builds, which differ only by O-ring. Built to OEM-equivalent standards or higher. Choose the standard kit, or add the gaskets.

    Choose Your Kit
    Both kits fit all Flygt 3300 builds listed below. Find the version you need, then select the same name from the dropdown above.
    Kit What’s in the box Choose this if
    Repair kit – Upper seal: Tungsten Carbide / Tungsten Carbide / Viton– Lower seal: Tungsten Carbide / Tungsten Carbide / Viton– Complete O-ring set (Flygt 80 32 41) Your gaskets are still in good condition and you only need to replace the seals and O-rings.
    Repair kit + gaskets – Upper seal: Tungsten Carbide / Tungsten Carbide / Viton– Lower seal: Tungsten Carbide / Tungsten Carbide / Viton– Complete O-ring set (Flygt 80 32 41)– Gaskets (Flygt 646 59 00 and 646 59 03) You are doing a full rebuild and want every sealing part replaced at once.
    Not sure which kit you need? Call or text 561-414-1046 with a photo of your pump nameplate — no purchase required.
    Applications

    • Flygt 3300 — 3300.090, 3300.091, 3300.180, 3300.181

    The Flygt 3300 is a large submersible channel impeller pump used in municipal and industrial wastewater, sewage, lift-station and treatment plant service, and in raw and clean water transfer. It is built in low head, medium head and high head versions with closed two-vane impellers available in cast iron or stainless steel.

    Build prefixes and head codes you may see on the nameplate: CP, CT, CS, RP and LL, along with LT (low head), MT (medium head) and HT (high head). Impeller curve codes in the 452, 454, 460-468 and 641-648 ranges are also common on 3300 data plates.

    Important fitment note: Flygt plug-in seal assemblies can vary by build. Please enter your full pump model number at checkout under “Pump Model Number Notes” so we can confirm the correct configuration for your unit

    Explore our full line up of Pump Repair Kits

    Looking for more? Check out our Shaft seals, Parts/Accessories & OEM seals

    Have questions?- Call us anytime-we’re here to help 

    Weight 6 lbs
    Dimensions 7 × 7 × 7 in
  • Flygt 3306 Pump Repair Kit — Fits C 3306 and N 3306

    Flygt 3306 Pump Repair KitFits C 3306 and N 3306

    Flygt 3306 Pump Repair KitFits C 3306 and N 3306

    Item #SH-3306

    Flygt 3306 Pump Repair Kit — Mechanical Seals & O-Ring Set

    A direct-fit aftermarket repair kit for the Flygt 3306 submersible pump, replacing the primary sealing components serviced in a routine rebuild. The seal pair — 90mm upper, 80mm lower — is the same on every 3306 and the same as the Flygt 3300. The O-ring set is not: pick your version from the dropdown and we pack the matching set. Built to OEM-equivalent standards or higher.

    Choose Your Kit
    The seals are the same on every 3306. The O-ring set is not — read the version letter off your dataplate and pick the matching row.
    Kit What’s in the Box Fits These Models
    Mechanical seal set + O-ring kit (83 05 64) — C 3306 Upper and lower mechanical seals, seal retaining ring, complete O-ring set — the kit Flygt lists as 83 05 64 C 3306, channel impeller — nameplate CP, CS, CT or CZ 3306
    Mechanical seal set + O-ring kit — N 3306 Upper and lower mechanical seals, seal retaining ring, complete O-ring set for the N-pump build N 3306, self-cleaning N-impeller — nameplate NP, NS, NT or NZ 3306
    Mechanical seal set only Upper and lower mechanical seals and the seal retaining ring. No O-rings Every 3306, C or N — the seals do not change between them
    Send us the model and the drive unit number off the dataplate — or text a photo to 561-414-1046 and we will read them for you. No purchase required.
    Applications

    • Municipal wastewater and sewage pumping, lift stations and treatment plants

    • Storm water and flood handling

    • Raw water and process water transfer, irrigation

    • Sludge handling and industrial effluent

    • Cooling water duty

    The Flygt 3306 is a large submersible wastewater pump, 58 to 100 kW at 50 Hz and 70 to 280 hp at 60 Hz, on a 300mm / 12 in. discharge. It is sold as the N 3306 with the self-cleaning N-impeller and as the C 3306 with the channel impeller, 104mm throughlet, in all four installation arrangements — P, S, T and Z. Both run the same seal pair. On a pump this size the lower seal takes the grit while the upper takes the heat and the hours, which is why both are replaced together.

    Nameplates read C 3306 or N 3306 with an installation prefix — NP, NS, NT, NZ, CP, CS, CT or CZ — and a drive unit number: 605, 665, 705, 735, 765, 706, 736 or 766 on standard units, or 615, 675, 715, 745, 775, 716, 746 or 776 on explosion-proof units.

    The O-ring set differs between the 3306 and the 3300, so enter your full pump model number under Pump Model Notes at checkout and we pack the kit to that pump. Not sure what you have? Text a photo of the dataplate to 561-414-1046 or call us and we will read it for you, no purchase required.

    Rebuilding a 3300 instead? The seals are identical, the O-rings are not — order the Flygt 3300 pump repair kit for builds 3300.090, .091, .180 and .181.

    Weight 5 lbs
    Dimensions 6 × 6 × 4 in
  • Flygt double mechanical seal kit on stainless steel flange for Flygt 3350, 7121 and 7121.985 pumps

    Flygt 3350 & 7121 Double Mechanical Seal KitFits 7121.985, 3531.905

    Flygt 3350 & 7121 Double Mechanical Seal KitFits 7121.985, 3531.905

    Item #7121

    Flygt 3350 & 7121 Double Mechanical Seal Kit — Stainless Flange

    Direct-fit replacement double mechanical seal assembly for Flygt 3350 and Flygt 7121 submersible pump applications, including the 7121.985 and 3531.905 builds. The assembly is supplied fully pre-assembled on a new stainless-steel flange, which simplifies installation, improves alignment and reduces setup errors during a rebuild. A complete O-ring kit is included.

    At a glance

    • Configuration: Double seal (upper and lower stage)

    • Seal faces: TC/TC – TC/TC (Tungsten Carbide vs Tungsten Carbide, both stages)

    • Elastomers: Viton (FKM)

    • Mounting: Pre-assembled on stainless-steel flange

    • Includes: Complete O-ring kit

    • Fits: Flygt 3350, 7121, 7121.985, 3531.905

    Applications

    • Flygt 7121 — including 7121.985

    • Flygt 3350

    • Flygt 3531 — 3531.905

    The Flygt 7121 is a large submersible axial-flow column pump built for moving high volumes at low head, used in flood control, stormwater, irrigation and raw water transfer, and fitting discharge columns up to 1400 mm with aluminum bronze or stainless steel propellers. The Flygt 3350 is a large-capacity submersible sewage pump used in municipal and industrial wastewater service. Both use the same double mechanical seal assembly covered by this kit.

    Don’t see your exact build number? Call or text 561-414-1046 with your pump nameplate and we’ll confirm the correct configuration before you order.

    Fitment note: Flygt seal assemblies can vary by build. Please enter your full pump model number at checkout under “Pump Model Number Notes” so we can confirm the correct configuration for your unit.

    Why this kit:

    Drop-in assembly. Because the seal arrives already mounted and aligned on its flange, you avoid the alignment errors that cause premature failure on a field-assembled double seal.

    Hard TC/TC faces on both stages. Tungsten carbide against tungsten carbide gives excellent wear resistance in abrasive service and handles the heat generated at the higher surface speeds these large pumps run.

    Viton (FKM) elastomers. Higher temperature capability and better chemical resistance than standard nitrile, which matters in industrial wastewater and where the pumped liquid carries aggressive chemistry.

    Stainless flange. Strength and corrosion resistance, with precise seal seating.

    Complete O-ring kit included. No separate add-on needed for a full rebuild.

    Explore our full line up of Pump Repair Kits

    Looking for more? Check out our Shaft seals, Gaskets, Parts/Accessories & OEM seals

    Have questions?- Call us anytime-we’re here to help 

    Weight 4 lbs
    Dimensions 6 × 6 × 4 in
  • Placeholder

    Flygt 3356 Pump Repair KitFits C 3356, N 3356 and L 3356

    Flygt 3356 Pump Repair KitFits C 3356, N 3356 and L 3356

    Item #SH-3356

    Flygt 3356 Pump Repair Kit — Mechanical Seals & O-Ring Set

    A direct-fit aftermarket repair kit for the Flygt 3356 submersible pump, replacing the primary sealing components serviced in a routine rebuild. One seal pair — 90mm upper, 80mm lower — covers the C 3356, N 3356 and L 3356 alike. The O-ring set is where these pumps differ: the column pump takes a different set from the C and N versions, so pick your version from the dropdown. Built to OEM-equivalent standards or higher.

    Choose Your Kit
    The seals are the same on every 3356. The O-ring set is not — the column pump takes a different set. Read the version letter off your dataplate and pick the matching row.
    Kit What’s in the Box Fits These Models
    Mechanical seal set + O-ring kit (83 05 64) — C 3356 / N 3356 Upper and lower mechanical seals, seal retaining ring, complete O-ring set — the kit Flygt lists as 83 05 64 C 3356 channel impeller and N 3356 N-impeller — nameplate CP, CS, CT, CZ, NP, NS, NT or NZ 3356
    Mechanical seal set + O-ring kit — L 3356 column pump Upper and lower mechanical seals, seal retaining ring, complete O-ring set for the column pump build L 3356 column pump only — it takes a different O-ring set from the C and N
    Mechanical seal set only Upper and lower mechanical seals and the seal retaining ring. No O-rings Every 3356 — C, N, L and I all run the same seal pair
    Send us the model and the drive unit number off the dataplate — or text a photo to 561-414-1046 and we will read them for you. No purchase required.
    Applications

    • Municipal wastewater and sewage pumping, large lift stations and treatment plants

    • Storm water and flood handling

    • Raw water and process water transfer, irrigation

    • Sludge handling and industrial effluent

    • Cooling water duty

    The Flygt 3356 is one of the large submersibles: 45 to 140 kW at 50 Hz and 70 to 280 hp at 60 Hz, on a 350mm / 14 in. discharge, six-pole at 990 r/min or eight-pole at 745 r/min on 50 Hz and 1190 / 895 r/min on 60 Hz. It is built three ways on the same seal pair — the N 3356 with the self-cleaning three-blade N-impeller, the C 3356 with the channel impeller, and the L 3356 column pump. On a pump this size the lower seal takes the grit while the upper takes the heat and the run hours, so both are replaced together.

    Nameplates read C 3356, N 3356 or L 3356 with an installation prefix — NP, NS, NT or NZ on the N-pump, CP, CS, CT or CZ on the C-pump — and a drive unit designation such as 35-29-6AA, 35-35-6AA, 35-45-6AA, 43-30-6BC, 43-44-6BC, 43-56-6BC, 35-29-8AA, 35-35-8AA, 35-45-8AA or 43-30-8AA. Curve codes run 53-670 and 53-870 at 50 Hz, 63-670 and 63-870 at 60 Hz.

    The O-ring set on the 3356 depends on two things: whether you have the C/N version or the L column pump, and which drive unit is fitted. So enter your full model number and the drive unit number under Pump Model Notes at checkout and we pack the kit to that pump. Easiest way: text a photo of the dataplate to 561-414-1046 and we will read both off it for you, no purchase required.

    Rebuilding a 3300 or a 3306 instead? All three run the same 90mm and 80mm seal pair, but each takes a different O-ring set — order the Flygt 3306 pump repair kit or the Flygt 3300 pump repair kit for those.

    Weight 5 lbs
    Dimensions 6 × 6 × 4 in