Wemco Torque-Flow Pump Repair Kit — Upper & Lower Seals with O-Ring Set, Fits Model CESI 4 x 11

Fairbanks Morse / Baldor Reliance Frame Seal Kit — Upper/Lower Seals + O-Ring Set Wemco Torque-Flow pump repair kit — upper carbon/ceramic seal, lower silicon carbide seal and Nitrile O-ring set for Model CESI

Wemco Torque-Flow Pump Repair Kit — Upper & Lower Seals with O-Ring Set, Fits Model CESI 4 x 11

SKU: N/A

Weight	2 lbs
Dimensions	7 × 7 × 4 in

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Wemco Torque-Flow Pump Repair Kit — Upper & Lower Seals with O-Ring Set, Fits Model CESI 4 x 11 quantity

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DESCRIPTION

The Wemco Torque-Flow pump repair kit is a direct-fit aftermarket seal set for Wemco Torque-Flow recessed impeller pumps, matched to the Model CESI in the 4 x 11 size. Supplied with the upper mechanical seal, the lower mechanical seal and the O-ring set, so the wet end goes back together without hunting parts. Built to OEM-equivalent standards or higher.

Two kits available

Same seals, same fit — the difference is whether the lower seal spring is guarded.

Without Lower Spring Guard — the build most CESI pumps come apart in
With Lower Spring Guard — adds the metal guard over the lower seal spring

Which kit do I need?

Look at the lower seal you pulled out. If a metal guard sat over its spring, order the guarded kit — otherwise order the plain one.

Kit	What’s in the box	Choose this if
Without Lower Spring Guard	Upper mechanical seal, Carbon / Ceramic / Nitrile · Lower mechanical seal, Silicon Carbide / Silicon Carbide / Viton · O-ring set, Nitrile	The lower seal you removed has a bare spring with no guard over it. This is how most Model CESI pumps are found.
With Lower Spring Guard	Upper mechanical seal, Carbon / Ceramic / Nitrile · Lower mechanical seal, Silicon Carbide / Silicon Carbide / Viton · O-ring set, Nitrile · Lower seal spring guard	A metal guard sat over the old lower seal spring, or the pump handles stringy, fibrous or ragging material that can wrap a bare spring.

Not sure which one you pulled out? Text a photo of the old seal to 561-414-1046 and we will tell you. No purchase required.

Why these materials

The lower seal runs in the grit and sludge the pump is moving, so it is built with silicon carbide faces on both sides and Viton elastomers — the hardest faces we offer, and the ones that survive abrasives. The upper seal runs clean, where carbon against ceramic lasts just as long, so the kit is not padded with cost that buys nothing.

Compatibility

Fits the Wemco Torque-Flow Model CESI, size 4 x 11. The unit this kit was matched to carried nameplate data of 250 GPM, 47 ft. head, 1200 RPM and an 11.375 in. impeller. Running a different Torque-Flow size or model designation? Text a photo of the nameplate to 561-414-1046 before you order and we will confirm the kit against it.

How to order

Check the nameplate on your pump for the model and size.
Look at the lower seal you removed and choose the guarded or unguarded kit above.
Need different face or elastomer materials for your duty? Call us and we will build it.

Rebuilding a grit pump?We build repair kits, shaft seals and wear parts for recessed impeller and solids-handling pumps across the municipal wastewater brands.

Doing the job yourself? Read How to Replace a Mechanical Pump Seal.

Disclaimer: Seal House USA provides aftermarket replacement parts. Any OEM names are used strictly for cross-reference. We are an independent supplier.