Grundfos 98434904 BQQE GG D28 NB NK TP SHAFT SEAL KIT #5036

Name: Grundfos 98434904 BQQE GG D28 NB NK TP SHAFT SEAL KIT #5036
Brand: Grundfos
SKU: 01848
Price: 178.8 GBP
Availability: InStock

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£149.00GBP inc VAT

Technical overview

About these figures

These figures provide simplified information for searching, filtering and initial comparison. They are not a complete specification. Exact details depend on the model and configuration.

Power rating: Usually the motor’s rated mechanical output (P2). Electrical input power (P1) is a different value. Check the product’s nameplate or manufacturer’s documentation to confirm which rating applies.

Outlet size: The nominal size class is expressed on a millimetre basis: for example, DN40 denotes a nominal 40 mm size. It does not specify the exact measured opening, connection type, thread, flange drilling or pressure rating.

Head and flow: Indicative figures describing the pump’s performance envelope, rather than a single operating duty point. Do not assume maximum flow is available at maximum head, or that every combination within the ranges is achievable. Minimum figures do not establish safe continuous operating limits. Consult the relevant performance curve.

Check the product description, nameplate and manufacturer’s documentation before selection or installation. Please contact us before purchasing if you need help confirming suitability or connection details.

Shipping Weight	0.5 kg
Package Dimensions	20.0 × 20.0 × 10.0 cm

Grundfos 98434904 BQQE GG D28 – 28mm Mechanical Shaft Seal Kit for Selected NB, NK & TP Pumps #5036

The Grundfos 98434904 is a replacement mechanical shaft seal kit designated BQQE GG D28. It is specified for selected Grundfos end-suction and in-line pump configurations requiring this particular 28mm seal.

The BQQE specification combines a rubber bellows design, silicon carbide seal faces and EPDM elastomers. Correctly matched to the pump and liquid, the seal controls leakage where the rotating shaft passes through the pump housing.

Condition: Supplied as new and unused surplus stock. The kit has not been installed or used, although its packaging may show marks from storage and handling. Supplied with a 2-year guarantee from The Pump Dealer.

Product Details

Manufacturer: Grundfos
Product number: 98434904
Part type: Mechanical shaft seal kit
Designation: BQQE GG D28
Nominal shaft seal size: 28mm
Seal construction: Rubber bellows mechanical seal
Seal faces: Silicon carbide against silicon carbide
Elastomer material: EPDM
Applications: Selected Grundfos NB, NK and TP family variants, including the exact product references listed below
Stock reference: #5036

Need help confirming compatibility?
Call 01803 220416 or send a clear photograph of your pump nameplate to kirk@thepumpdealer.co.uk before ordering.

Delivery & Shipping

Next working day dispatch available – order before 4pm
Same-day courier available – please call for a quote
UK and international delivery available
International shipping costs confirmed after checkout

Manufacturer Documentation

Grundfos service literature lists 98434904 against the applicable 28mm BQQE seal configurations. Use the complete pump product number and relevant spare-parts diagram to confirm selection.

Compatibility Guidance

NB, NK or TP in the pump name does not by itself establish compatibility. These ranges contain different shaft sizes, seal arrangements and material variants.

The most reliable check is whether the spare-parts list for your exact pump specifies 98434904. Please provide the complete pump model, eight-digit product number and production code where available. A photograph of the existing seal or its packaging can also help.

A researched list of 403 confirmed pump product references is included at the bottom of this description. Match the complete designation and product number rather than relying on the abbreviated pump name.

Frequently Asked Questions

What does BQQE mean?

BQQE identifies the seal construction and materials:

B: Rubber bellows mechanical seal
First Q: Silicon carbide rotating seal face
Second Q: Silicon carbide stationary seal face
E: EPDM secondary sealing components

The material code helps identify suitability for the liquid, but dimensions and the pump's seal arrangement must also match.

What does D28 mean?

D28 identifies the nominal 28mm shaft seal diameter. It is not the pump's pipe connection size or the outside diameter of the complete seal assembly. A different 28mm seal may have a different installed length, stationary seat or drive arrangement.

What does GG mean?

GG is the additional material designation for the spring and metal construction components in the underlying seal specification. The G material category identifies chromium-nickel-molybdenum stainless steel. Retain the complete designation when matching a replacement.

How does a mechanical shaft seal work?

A rotating face turns with the shaft against a stationary face mounted in the pump. A very thin film of liquid between the faces provides lubrication, while the bellows and secondary seals prevent leakage around the other interfaces.

Correct installation, clean sealing surfaces and adequate liquid around the seal are essential for reliable operation.

Why use silicon carbide against silicon carbide?

Silicon carbide provides hard, wear-resistant sealing faces. This can be useful where the liquid contains some fine particles that would wear a softer face material more quickly.

The faces still require suitable lubrication. Their hardness does not make the seal immune to damage from dry running, impact, contamination or incorrect fitting.

Is EPDM suitable for heating water and glycol?

EPDM is commonly used for water and compatible water-glycol mixtures. Suitability depends on the glycol type, concentration, additives and operating temperature.

Check the complete liquid formulation against the pump and seal specification. EPDM is generally unsuitable for mineral oils and petroleum-based fuels.

Is BQQE interchangeable with BQQV?

The final letter identifies a different elastomer: E is EPDM, while V is FKM. These materials have different chemical and temperature characteristics, so the change should be assessed against the pumped liquid and operating conditions.

Matching the diameter and silicon carbide faces alone is insufficient to approve a substitution.

Can this replace a BAQE, BBQE or another seal code?

A different seal code can indicate different face materials or construction. A change may be possible in a particular pump, but it should be checked against the manufacturer's spare-parts information and application requirements. Please contact us before ordering a different specification from the original.

Does this fit every Grundfos NB, NK or TP pump?

No. Grundfos lists this part for selected configurations within these families, including applicable TP Series 300 pumps. Other versions use different diameters, seals or installation arrangements. Confirm the complete pump product number rather than relying on the family name or motor power.

What do the eight-digit numbers in the compatibility list identify?

The number at the end of each entry is the Grundfos product number of the pump. The replacement shaft seal kit being sold here is 98434904. Pumps with similar or identical model descriptions can have different product numbers, so these references are listed separately.

Will replacing the shaft seal cure a leaking pump?

It may resolve leakage caused by a worn or damaged mechanical seal. However, leakage can also come from a casing joint, O-ring or another component.

The cause of the original failure should be investigated. Shaft or sleeve damage, bearing wear, misalignment, contamination and poor operating conditions can cause a replacement seal to fail again.

Can the pump run dry after fitting this seal?

Dry running should be avoided. The liquid lubricates and cools the seal faces; trapped air or an empty pump can cause rapid heating and damage. Fill and vent the pump according to its operating instructions before starting.

What is included?

This listing is for shaft seal kit 98434904. Please refer to the listing photographs for the supplied components. Pump casing gaskets, spacer rings, bearings, shafts and other service parts should be checked separately against the repair requirements.

Who should install the seal?

A competent pump engineer should fit the replacement using the service procedure for the exact pump model. This includes checking the shaft and seat condition, keeping the seal faces clean, using approved assembly materials and setting the correct assembly position.

About Our Stock

We specialise in supplying new and unused surplus pumps, motors and pump spares. This item is supplied with a 2-year guarantee from The Pump Dealer.

Stock reference: #5036
For help matching this kit to your pump, call 01803 220416.

Pump Compatibility – Grundfos Manufacturer References

We have searched Grundfos Product Center and checked the manufacturer's recommended spare-parts records. Shaft seal kit 98434904 is explicitly listed for each of the 403 pump product references below.

Each entry shows the full published pump designation, including the BQQE seal code, followed by the eight-digit Grundfos pump product number. Four additional NBS service-special records, for which a full model designation is not published, are listed separately at the end.

Please check your pump nameplate: Match the complete model designation and eight-digit product number. A matching pump family, nominal size or BQQE code alone does not establish compatibility. This list contains confirmed matches identified in our search; additional compatible product numbers may exist.

Grundfos TP

TP 32-80/4 AE-F-A-BQQE-CW3 — 99649692
TP 32-100/4 A-F-A-BQQE — 99609898
TP 32-100/4 A-F-A-BQQE-DW3 — 96086740
TP 32-100/4 AE-F-A-BQQE-DX3 — 99856643
TP 32-250/2 A-F-A-BQQE-HW1 — 93349422
TP 32-250/2 B-F-A-BQQE-IW1 — 93474168
TP 32-300/2 A-F-B-BQQE-IW2 — 93340977
TP 32-460/2 A-F-S-BQQE-KW1 — 99209958
TP 32-580/2 A-F-A-BQQE-LW1 — 96086678
TP 32-580/2 A-F-S-BQQE-LW1 — 99379146
TP 40-110/4 A-F-B-BQQE-FW3 — 99123708
TP 40-110/4 B-F-A-BQQE-GW3 — 93196104
TP 40-140/4 A-F-A-BQQE-GW3 — 93349740
TP 40-140/4 A-F-B-BQQE-GW3 — 98743320
TP 40-140/4 A-J-S-BQQE-GW3 — 99368905
TP 40-230/4 A-F-B-BQQE-IW4 — 92673324
TP 40-240/2 A-F-A-BQQE-IW1 — 96086827
TP 40-360/2 A-F-S-BQQE-KW1 — 99453046
TP 40-430/2 A-F-S-BQQE-LW1 — 99816878
TP 40-530/2 A-F-S-BQQE-MW1 — 99299441
TP 50-90/4 A-F-B-BQQE-EW3 — 96087135
TP 50-125/4 A-F-R-BQQE-HW3 — 93525670
TP 50-130/4 A-F-A-BQQE — 97898960
TP 50-140/4 A-F-S-BQQE-HW3 — 99187889
TP 50-190/4 AE-F-A-BQQE-IW3 — 99421410
TP 50-230/4 A-F-A-BQQE-JW3 — 96097349
TP 50-290/2 A-F-A-BQQE — 99600454
TP 50-340/4 A-F-A-BQQE-LW4 — 96088925
TP 50-570/2 A-F-B-BQQE — 98787117
TP 50-900/2 A-F-S-BQQE-QW1 — 93369217
TP 65-130/4 A-F-A-BQQE-HW4 — 96097778
TP 65-210/2 A-F-A-BQQE — 99615011
TP 80-90/4 A-F-A-BQQE-HW3 — 92553433
TP 80-90/4 A-F-A-BQQE-HW3 — 96108602
TP 80-90/4 A-F-A-BQQE-HX3 — 99260374
TP 80-90/4 A-F-B-BQQE-HW3 — 96108634
TP 80-110/4 B-F-S-BQQE-JW3 — 99945563
TP 80-150/4 A-F-A-BQQE-JW3 — 92618452
TP 80-170/4 A-F-A-BQQE-KW3 — 99123784
TP 80-330/2 AE-F-B-BQQE-NW1 — 99407576
TP 80-400/2 AE-F-A-BQQE-OW1 — 99997672
TP 80-520/2 A-F-B-BQQE-PW1 — 98949389
TP 100-70/4 A-F-S-BQQE-HW3 — 99380204
TP 100-90/4 A-F-A-BQQE-IW3 — 99123804
TP 100-90/4 B-F-A-BQQE-JW3 — 92606561
TP 100-110/4 A-F-B-BQQE-JW3 — 99123810
TP 100-110/4 A-F-S-BQQE-JW3 — 98528670
TP 100-250/2 A-F-A-BQQE-NW1 — 96108940
TP 100-345/2 A-F-R-BQQE-PW1 — 93280279
TP 100-360/2 A-F-A-BQQE-PW1 — 96109194
TP 100-390/2 A-F-A-BQQE — 99592607
TP 100-390/2 A-F-A-BQQE-QX1 — 99263671

Grundfos TPE

TPE 32-200/2 A-F-A-BQQE-GWB — 93149285
TPE 32-200/2 S-A-F-A-BQQE-GWB — 93149414
TPE 32-250/2 S-A-F-A-BQQE-HWB — 99133573
TPE 32-320/2 AE-F-A-BQQE-IWB — 92684202
TPE 32-320/2 S-A-F-A-BQQE-IWB — 93149418
TPE 32-360/2 A-F-B-BQQE-JWB — 99114142
TPE 32-380/2 A-F-A-BQQE-JWB — 99113926
TPE 32-380/2 A-F-B-BQQE-JWB — 99114008
TPE 32-380/2 S-A-F-A-BQQE-JWB — 93149421
TPE 32-820/2 A-F-A-BQQE-NWB — 99114084
TPE 40-300/2 S-A-F-A-BQQE-JWB — 99114658
TPE 40-430/2 A-F-A-BQQE-LWB — 93149335
TPE 40-430/2 A-F-A-BQQE-LWB — 99113931
TPE 40-530/2 A-F-A-BQQE-MWB — 99113933
TPE 40-530/2 A-F-B-BQQE-MWB — 99114015
TPE 40-630/2 A-F-A-BQQE — 98743224
TPE 40-630/2 A-F-A-BQQE-NWB — 93149350
TPE 40-630/2 A-F-A-BQQE-NWB — 99113935
TPE 40-630/2 S-A-F-A-BQQE-NWB — 93149434
TPE 40-690/2 A-F-B-BQQE — 98743492
TPE 50-190/4 A-F-B-BQQE — 96096555
TPE 50-240/4 A-F-A-BQQE-JWA — 99113804
TPE 50-360/2 A-F-A-BQQE-KWB — 93149353
TPE 50-360/2 AE-F-A-BQQE-KWB — 93214075
TPE 50-360/2 S-A-F-B-BQQE-KWB — 93472180
TPE 50-420/2 A-F-A-BQQE-MWB — 99113939
TPE 50-430/2 A-F-A-BQQE-LWB — 93149355
TPE 50-430/2 S-A-F-A-BQQE-LWB — 93149439
TPE 65-210/2 A-F-B-BQQE-JWB — 99114022
TPE 65-210/2 S-A-F-B-BQQE-JWB — 99197687
TPE 65-230/4 A-F-A-BQQE-KWA — 99113809
TPE 65-240/4 S-A-F-B-BQQE-KWA — 99207886
TPE 65-340/2 A-F-A-BQQE-LWB — 93149364
TPE 65-340/2 S-A-F-A-BQQE-LWB — 93149460
TPE 65-720/2 A-F-B-BQQE-QWB — 92952051
TPE 80-150/4 A-F-A-BQQE-JWA — 93149549
TPE 80-170/4 A-F-A-BQQE-KWA — 99113814
TPE 80-210/2 A-F-B-BQQE-KWB — 99114039
TPE 80-240/2 A-F-S-BQQE — 99603159
TPE 80-330/2 AE-F-B-BQQE-NWB — 99407581
TPE 80-400/2 A-F-A-BQQE-OWB — 93110263
TPE 80-400/2 S-A-F-A-BQQE-OW1 — 99697469
TPE 80-400/2 S-AE-F-A-BQQE-OW1 — 92625953
TPE 80-520/2 A-F-B-BQQE-PWB — 92952075
TPE 80-700/2 NC-A-F-B-BQQE-RW1 — 99474341
TPE 100-70/4 A-F-B-BQQE — 99609603
TPE 100-70/4 S-A-F-A-BQQE-HWA — 93036263
TPE 100-90/4 A-F-A-BQQE-IWA — 93149581
TPE 100-90/4 A-F-B-BQQE-IWA — 99113749
TPE 100-110/4 A-F-A-BQQE-JWA — 99113704
TPE 100-110/4 A-F-B-BQQE-JWA — 99113750
TPE 100-110/4 S-AE-F-A-BQQE-JWA — 99737192
TPE 100-110/4 S-AE-F-B-BQQE-JWA — 92687156
TPE 100-150/4 A-F-A-BQQE-LWA — 99113819
TPE 100-250/2 A-F-A-BQQE-NWB — 93149396

Grundfos TPE2

TPE2 50-700 N-A-F-A-BQQE-NWB — 93339004
TPE2 65-580 N-A-F-A-BQQE-MWB — 93339020
TPE2 65-760 N-A-F-S-BQQE-QWB — 93339038
TPE2 80-340 N-A-F-A-BQQE-MWB — 93339040
TPE2 80-440 N-A-F-S-BQQE-NWB — 93339046
TPE2 80-520 N-A-F-S-BQQE-OWB — 93339050
TPE2 80-570 N-A-F-S-BQQE-QWB — 93339058
TPE2 D 65-740 N-A-F-A-BQQE-OWB — 93339359
TPE2 D 80-440 N-A-F-S-BQQE-NWB — 93339377

Grundfos TPE3

TPE3 50-740 S-A-F-S-BQQE-PWB — 93339013
TPE3 80-440 S-A-F-S-BQQE-NWB — 93339045
TPE3 80-520 S-A-F-A-BQQE-OWB — 93546863
TPE3 80-560 S-A-F-A-BQQE-PWB — 93555855
TPE3 D 65-760 S-A-F-A-BQQE-QWB — 93339366
TPE3 D 80-340 S-A-F-S-BQQE-MWB — 93339372
TPE3 D 80-440 S-A-F-A-BQQE-NWB — 93339374

Grundfos TPD

TPD 32-80/4 A-F-A-BQQE-CW3 — 96086757
TPD 32-80/4 A-F-A-BQQE-CW3 — 99103176
TPD 32-120/4 A-F-A-BQQE-EW3 — 96086759
TPD 32-120/4 A-F-A-BQQE-EY4 — 93111594
TPD 32-120/4 A-F-B-BQQE-EY4 — 96112152
TPD 32-250/2 A-F-A-BQQE-HW1 — 93428393
TPD 32-250/2 A-F-A-BQQE-HW1 — 96384226
TPD 32-250/2 A-F-B-BQQE-HW1 — 96086728
TPD 32-460/2 A-F-A-BQQE-KW1 — 96086803
TPD 32-460/2 A-F-B-BQQE-KW1 — 96086731
TPD 32-550/2 A-F-B-BQQE-LW2 — 96112188
TPD 40-100/4 A-F-B-BQQE-EW3 — 96086910
TPD 40-240/2 A-F-A-BQQE-IW1 — 93428508
TPD 40-240/2 A-F-B-BQQE-IW1 — 96086968
TPD 40-300/2 A-F-A-BQQE-JW1 — 93428466
TPD 40-360/2 A-F-A-BQQE-KW1 — 98858168
TPD 40-400/2 A-F-B-BQQE-KW2 — 98743576
TPD 40-530/2 A-F-B-BQQE-MW1 — 98743254
TPD 40-630/2 A-F-B-BQQE-NW1 — 98743221
TPD 40-820/2 A-F-A-BQQE-OW2 — 98743447
TPD 40-920/2 A-F-B-BQQE-PW2 — 98743426
TPD 50-90/4 A-F-A-BQQE-EW3 — 96384250
TPD 50-120/4 A-F-B-BQQE-GW3 — 98742951
TPD 50-230/4 A-F-A-BQQE-JW3 — 96087302
TPD 50-240/2 A-F-A-BQQE-IW1 — 93428520
TPD 50-240/4 A-F-A-BQQE-JW4 — 96112464
TPD 50-290/2 A-F-A-BQQE-JW1 — 96087064
TPD 50-290/2 A-F-B-BQQE-JW1 — 96087277
TPD 50-340/4 A-F-A-BQQE-LW4 — 96112466
TPD 50-530/2 A-F-B-BQQE-NW2 — 98743068
TPD 50-900/2 A-F-B-BQQE-QW1 — 96087284
TPD 65-130/4 A-F-A-BQQE-HW4 — 96112551
TPD 65-170/4 A-F-A-BQQE-JW3 — 96087646
TPD 65-170/4 A-F-B-BQQE-JW3 — 96087499
TPD 65-190/4 A-F-A-BQQE-JW4 — 96112553
TPD 65-250/2 A-F-A-BQQE-KW1 — 93428434
TPD 65-250/2 A-F-A-BQQE-KW1 — 98742361
TPD 65-250/2 A-F-A-BQQE-KW2 — 98742487
TPD 65-250/2 A-F-B-BQQE-KW2 — 98742496
TPD 65-310/4 A-F-B-BQQE-LW4 — 96112663
TPD 65-390/2 A-F-B-BQQE-MW2 — 96112532
TPD 65-740/2 A-F-A-BQQE-QW2 — 96112602
TPD 65-930/2 A-F-B-BQQE-RW1 — 96097487
TPD 80-90/4 AE-F-A-BQQE-HW3 — 99266187
TPD 80-110/4 A-F-A-BQQE-IW3 — 96108891
TPD 80-110/4 A-F-B-BQQE-IW3 — 96108691
TPD 80-150/4 A-F-A-BQQE-JW3 — 96108660
TPD 80-150/4 A-F-A-BQQE-JW3 — 96108892
TPD 80-240/2 A-F-A-BQQE-LW1 — 96108538
TPD 80-240/2 A-F-B-BQQE-LW2 — 96111427
TPD 80-330/2 A-F-A-BQQE-NW1 — 96108540
TPD 80-520/2 A-F-B-BQQE-PW1 — 96108582
TPD 80-750/2 A-F-B-BQQE-SW2 — 96111434
TPD 100-70/4 A-F-A-BQQE-HW3 — 96109123
TPD 100-90/4 A-F-A-BQQE-IW3 — 96109124
TPD 100-90/4 A-F-B-BQQE-IW3 — 96109164
TPD 100-90/4 A-F-B-BQQE-IW3 — 96109402
TPD 100-100/4 A-F-B-BQQE-JW4 — 96111696
TPD 100-110/4 A-F-A-BQQE-JW3 — 96109125
TPD 100-250/2 A-F-A-BQQE-NW1 — 96108996
TPD 100-250/2 A-F-B-BQQE-NW1 — 96109028
TPD 100-310/2 A-F-A-BQQE-OW1 — 96108997
TPD 100-360/2 A-F-B-BQQE-PW1 — 96109030

Grundfos TPED

TPED 32-120/4 A-F-A-BQQE — 97932023
TPED 32-200/2 A-F-B-BQQE-GWB — 98512484
TPED 32-200/2 A-F-B-BQQE-GWB — 98512489
TPED 32-250/2 A-F-B-BQQE-HWB — 98112522
TPED 32-250/2 S-A-F-A-BQQE-HWB — 99133598
TPED 32-320/2 A-F-B-BQQE-IWB — 98112544
TPED 32-320/2 A-F-S-BQQE-IWB — 99466165
TPED 32-380/2 A-F-B-BQQE-JWB — 99114763
TPED 32-460/2 A-F-A-BQQE-KWB — 99114599
TPED 32-580/2 A-F-A-BQQE-LWB — 99114600
TPED 40-110/4-S A-F-A-BQQE — 98743399
TPED 40-240/2 A-F-A-BQQE — 98112593
TPED 40-300/2 A-F-B-BQQE-JWB — 99114766
TPED 40-530/2 S-A-F-A-BQQE-MWB — 99132809
TPED 50-290/2 A-F-B-BQQE-JWB — 99114771
TPED 50-430/2 A-F-A-BQQE-LWB — 99114608
TPED 50-630/2 A-F-A-BQQE-OW1 — 98742809
TPED 50-630/2 S-A-F-A-BQQE-OWB — 92957988
TPED 50-830/2 A-F-B-BQQE-PWB — 92958010
TPED 50-900/2 A-F-A-BQQE-QW1 — 96096502
TPED 50-900/2 S-A-F-A-BQQE-QWB — 92958020
TPED 65-210/2 AE-F-A-BQQE-JWB — 92516520
TPED 65-210/2 S-A-F-A-BQQE-JWB — 99132830
TPED 65-340/2 A-F-A-BQQE-LWB — 99114613
TPED 65-340/2 A-F-B-BQQE-LWB — 99114779
TPED 65-460/2 A-F-B-BQQE-NWB — 99114781
TPED 65-550/2 S-A-F-A-BQQE-OWB — 92958026
TPED 65-720/2 A-F-A-BQQE-QWB — 92958034
TPED 80-150/4 A-F-B-BQQE-JWA — 99114792
TPED 80-170/4 A-F-A-BQQE-KWA — 99114627
TPED 80-180/2 A-F-A-BQQE-JWB — 99114616
TPED 80-180/2 S-A-F-A-BQQE-JWB — 99132837
TPED 80-240/2 A-F-A-BQQE-LWB — 99114618
TPED 80-250/2 S-A-F-A-BQQE-MWB — 99132840
TPED 80-330/2 A-F-A-BQQE-NWB — 99114620
TPED 80-330/2 S-A-F-S-BQQE-NWB — 99470239
TPED 80-570/2 A-F-A-BQQE-QWB — 92958061
TPED 100-65/4 A-F-B-BQQE-GWA — 99476477
TPED 100-70/4 A-F-A-BQQE-HWA — 99114630
TPED 100-70/4 A-F-B-BQQE-HWA — 99114796
TPED 100-110/4 A-F-A-BQQE-JWA — 99114632
TPED 100-110/4 S-A-F-A-BQQE-JWA — 99132860
TPED 100-160/2 S-A-F-A-BQQE-KWB — 99132844
TPED 100-240/2 A-F-A-BQQE-MWB — 99114623
TPED 100-310/2 A-F-A-BQQE-OWB — 92958068
TPED 100-390/2 S-A-F-A-BQQE-QW1 — 96945787

Grundfos NB

NB 32-125/119 AAF2AESBQQEHW1 — 92568067
NB 32-125/123 AAF2KESBQQEIW1 — 93303884
NB 32-125/127 AAF2AESBQQEIW1 — 98766007
NB 32-125/134 AF2KBQQE — 98415214
NB 32-160.1/155 AF2ABQQE — 98859474
NB 32-160/174 AAF2AESBQQELW1 — 93298482
NB 32-200.1/207 AAF2BESBQQEMW1 — 98701257
NB 32-200/206 AAF2BESBQQEMW1 — 99803685
NB 32-200/206 AF2ABQQE — 96631222
NB 32-200/219 AASF2BESBQQENW1 — 92798484
NB 40-125/104 AAF2AESBQQEIW1 — 99070459
NB 40-125/139 AAF2NESBQQEKW1 — 98300219
NB 40-125/139 AF2BBQQE — 98947745
NB 40-160/156 AF2KBQQE — 98327962
NB 40-160/160 AF2KBQQE — 99213232
NB 40-160/177 AF2BBQQE — 97515521
NB 40-160/177 AF2BBQQE — 99256487
NB 40-200/206 AAF2KESBQQENW1 — 99728422
NB 40-200/206 AAF2SESBQQENW1 — 93209264
NB 40-200/219 DF2ABQQE — 98867721
NB 50-125/111 AF2ABQQE — 99024789
NB 50-125/135 ABF2AESBQQEMW1 — 99652378
NB 50-160/150 AF2ABQQE — 96631224
NB 50-160/167 AAF2BESBQQENW1 — 98391289
NB 50-160/167 DF2BBQQE — 99324927
NB 50-160/177 AAF2TESBQQEIW3 — 93585478
NB 50-200/204 DSF2ABQQE — 98829248
NB 50-200/210 AAF2KESBQQEPW1 — 98146331
NB 50-250/233 AF2BBQQE — 96577072
NB 50-250/254 AF2ABQQE — 98587313
NB 65-125/120-116 AAF2BESBQQELW1 — 92684069
NB 65-125/122 BF2BBQQE — 99159021
NB 65-125/143 AF2BBQQE — 98870854
NB 65-160/163 AAF2AESBQQEOW1 — 99445644
NB 65-160/163 AAF2AESBQQEQW2 — 97980736
NB 65-160/171 AAF2KESBQQEIW3 — 92713846
NB 65-160/173 BF2ABQQE — 96578692
NB 65-200/188 AAF2KESBQQEPW1 — 92671067
NB 65-200/217 AHASF2SESBQQERW1 — 99954670
NB 65-200/219 AF2ABQQE — 98837074
NB 80-160/146 AAF2KESBQQEOW1 — 99575217
NB 80-160/147-127 AAF2BESBQQENW1 — 98567322
NB 80-160/155 ADF2BESBQQEQW1 — 92926587
NB 80-160/161 AAF2SESBQQEIW3 — 99399649
NB 80-160/161 AHASF2AESBQQEPW1 — 99792942
NB 80-160/163 AAF2AESBQQEPW1 — 92993179
NB 80-160/169 AAF2AESBQQEQW1 — 99343357
NB 80-160/170 AAF2AESBQQEQW1 — 92767557
NB 80-160/172 AAF2AESBQQEQW1 — 99871995
NB 80-160/177 AAF2AESBQQEJW3 — 92554379
NB 100-160/160-140 BAF2AESBQQEHY6 — 99001960
NB 100-160/160-140 EUP AF2ABQQE — 99198453
NB 100-160/160-156 BAEF2AESBQQEQW1 — 99204246
NB 100-160/167 BAF2AESBQQEQW1 — 99466918
NB 100-160/169 BAEF2AESBQQEJW3 — 99374907
NB 100-160/175 BASF2AESBQQEQW1 — 99938074
NB 100-160/176 BAF2AESBQQEMW4 — 98975474
NB 100-160/176 BAF2SESBQQEKW3 — 99015727
NB 100-160/176 BCF2AESBQQEXW1 — 99303900
NB 100-160/176 EUP AEF2KBQQE — 99273771

Grundfos NBE

NBE 40-125/139 AAF2SESBQQEKWB — 99297690
NBE 50-125/111 AAF2SESBQQEJWB — 99563667
NBE 50-160/177 AAEF2AESBQQEOWB — 93420335
NBE 65-200/191 AAF2AESBQQEPWB — 99696450

Grundfos NBG

NBG 50-32-125.1/140 AF2BBQQE — 99559067
NBG 50-32-160/158 AF2NBQQE — 98558843
NBG 50-32-160/164 AF2SBQQE — 98882919
NBG 50-32-160/170 AAF2NESBQQEEW3 — 98520678
NBG 65-40-200/172 AAF2AESBQQELW1 — 93388160
NBG 65-50-160/177 AAF2AESBQQENW1 — 99709396
NBG 80-50-200/210 AAF2SESBQQEIW3 — 92502694

Grundfos NBGE

NBGE 50-32-200/197 AAE2AESBQQEFWA — 93547615
NBGE 80-50-200/181 AASF2AESBQQENWB — 99621504
NBGE 80-65-125/124 AAF2KESBQQEMWB — 99102596
NBGE 80-65-160/165 AAF2KESBQQEPWB — 97798075
NBGE 80-65-160/171 VAASF2CESBQQENWB — 92822477
NBGE 100-80-125/136 AAF2KESBQQEMWB — 99101093

Grundfos NBS

NBS 012-070/4.92 AASG6SMESBQQEKX2 — 92597196
NBS 015-070/5.12 AGASG6SMESBQQEFX4 — 92900700
NBS 015-095/9.84 AGASG6SMESBQQELX4 — 93487865
NBS 020-095/8.11 AASG6SMESBQQEKX4 — 93434094
NBS 020-110/8.98 AASG6SMESBQQELX4 — 92559545
NBS 040-070/5.12-4.33 AASG6SMESBQQEHX4 — 92559714
NBS 040-095/8.35 AGASG6SMESBQQENX4 — 93487782

Grundfos NBSE

NBSE 012-070/4.69 AASG6SMESBQQEICB — 92613436
NBSE 015-070/6.73 AASG6SMESBQQEMBB — 93224778
NBSE 015-070/6.93 AASG6SMESBQQEICA — 92613038
NBSE 015-070/6.93 AASG6SMESBQQEKCA — 93184773
NBSE 015-090/9.84 AASG6SMESBQQEKED — 93307287
NBSE 020-110/8.98 AASG6SMESBQQEKCA — 93184865
NBSE 030-070/5.20 AASG6SMESBQQEGCA — 93184776
NBSE 030-095/8.86 AASG6SMESBQQEOCA — 93184837

Grundfos NK

NK 32-125/140 Y1F2KE-SBQQE — 98912349
NK 32-160.1/166 AY1F2KESBQQEXW1 — 99714669
NK 32-160/159 AA2F2KESBQQEJW1 — 92890075
NK 32-160/162 AY1F2KESBQQEXW1 — 99419650
NK 32-160/168 AY1F2KESBQQEXW1 — 93595704
NK 32-160/177 AA1F2KESBQQELW1 — 99445576
NK 32-160/177 AY1F2AESBQQEXW1 — 99454487
NK 32-165.1/156 AA1F1S3ESBQQEHW1 — 93215534
NK 32-250/219 AY1F2AESBQQEXW1 — 98807744
NK 32-250/225 AY1F2KESBQQEXW1 — 92890367
NK 40-125/139 Y1F2KE-SBQQE — 98885107
NK 40-130/135 AA1F1S3ESBQQELW1 — 93172798
NK 40-160/164 AY1F2KESBQQEXW1 — 93420299
NK 40-180/165 AA1F1S3ESBQQEMW1 — 93565426
NK 40-190/202 AA1F1S3ESBQQEPW1 — 93568601
NK 40-200/206 AA2F2AESBQQENW1 — 98973441
NK 40-200/206 Y1F2BE-SBQQE — 98763365
NK 40-220/250 AW1F1S3ESBQQEXW1 — 93232341
NK 40-225/250 AY1F2S3ESBQQEXW3 — 93544222
NK 40-250/230 AA2F2KESBQQEOW1 — 98324714
NK 50-160/150 Y1F2KE-SBQQE — 98492731
NK 50-160/169 Y1F2AE-SBQQE — 98874056
NK 50-160/171 A2F2BE-SBQQE — 98707229
NK 50-200/180 Y1F2AE-SBQQE — 98956616
NK 50-200/189 Y1F2KE-SBQQE — 98511102
NK 50-200/210 AA1F2AESBQQEPW1 — 98630557
NK 50-200/210 AY1F2SESBQQEXW1 — 99377579
NK 50-250/231 AY1F2AESBQQEXW1 — 99591619
NK 50-250/239 Y1F2AE-SBQQE — 98880355
NK 50-250/254 Y1F2KE-SBQQE — 98831183
NK 65-125/120-110 AA1F2KESBQQEKW1 — 98295152
NK 65-160/146 Y1F2SE-SBQQE — 98717608
NK 65-160/176 AA1F2KESBQQEPW1 — 99614026
NK 65-160/177 AA2F2AESBQQEIW3 — 99334487
NK 65-180/148 AA1F1S3ESBQQEMW1 — 93235294
NK 65-180/157 AA1F1S3ESBQQENW1 — 93135315
NK 65-180/169 AA1F1S3ESBQQENW1 — 93057634
NK 65-200/190 AA2F2AESBQQEPW1 — 92603461
NK 65-200/200 Y1F2KE-SBQQE — 96804111
NK 65-200/217 AI1F2AESBQQEXW1 — 99630659
NK 80-160/161 Y1F2KE-SBQQE — 98805656
NK 80-160/162 AY1F2KESBQQEXW2 — 93676675
NK 80-180.1/162 AA1F2S3ESBQQEOW1 — 93662034
NK 80-180/133 AA1F1S3ESBQQEMW1 — 92987068
NK 80-180/138 AA1F1S3ESBQQEMW1 — 93507898
NK 80-180/153 AA1F2S3ESBQQEOW1 — 93183735
NK 80-180/164 AA1F1S3ESBQQEOW1 — 93159795
NK 80-180/168 AA1F1S4ESBQQEPW1 — 93255969
NK 80-180/171 AA1F1S3ESBQQEOW1 — 93381638
NK 80-180/173 AA1F1S3ESBQQEPW1 — 93370421
NK 100-180/170 AA1F1S3ESBQQEQW1 — 93534471

Grundfos NKE

NKE 65-200/170 AA1F2AESBQQEHWA — 99256978
NKE 65-225/234 AA1F1S3ESBQQEIWA — 92778286
NKE 80-160/146 AA1F2SESBQQEHWA — 93387635
NKE 80-180/174 AG1F2S3ESBQQE6WB — 93266242
NKE 100-180/174 AA1F1S3ESBQQELWA — 93219633

Grundfos NKG

NKG 50-32-125/142 AA1F2KESBQQEDW3 — 99119844
NKG 50-32-160.1/155 AA1F2BESBQQEIW1 — 93402193
NKG 65-40-200/206 AA2F2AESBQQENW1 — 93401425
NKG 65-50-125/127 AA1F2KESBQQEJW1 — 98292064
NKG 65-50-160/158 AY1F2KESBQQEXW1 — 97774887
NKG 80-50-200/199 VAA1F2IESBQQEIW3 — 92894753
NKG 80-50-200/219 AY1F2AESBQQEXW1 — 97909420
NKG 80-65-125/144 AA1F2AESBQQEGW3 — 93351980
NKG 80-65-160/177 AY1E2SESBQQEXW3 — 98496147
NKG 100-80-125/136 AA1F2KESBQQEMW1 — 93405430

Grundfos NKGE

NKGE 50-32-200/216 AA1F2KESBQQEGWA — 98112322
NKGE 65-50-125/118 AA2F2KESBQQEKWB — 99099282
NKGE 80-50-200/171 AA2F2KESBQQEGWA — 98112230
NKGE 80-50-200/215 VAA1F2IESBQQEPWB — 92894329
NKGE 80-50-200/215 VAA2F2AESBQQEPWB — 92894477
NKGE 80-65-125/144 AA1F2KESBQQEGWA — 98112216
NKGE 80-65-160/158 VAA1F2IESBQQEFWA — 92897092
NKGE 80-65-160/164 VAA1F2AESBQQELWB — 92896866
NKGE 80-65-160/171 VAA2F2AESBQQEGWA — 92897165

Additional Grundfos NBS Service-Special References

The following four Grundfos product records also explicitly list shaft seal kit 98434904. Their published records identify them as NBS service specials without providing a full model designation.

NBS service special — 93404938
NBS service special — 93579341
NBS service special — 93589135
NBS service special — 93611189

Compatibility reference: Grundfos Product Center product descriptions and recommended spare-parts records, checked on 20 October 2026. Manufacturer reference for shaft seal kit 98434904. The eight-digit numbers at the end of the entries identify the pumps; the replacement seal kit number is 98434904.

Specification & guidance notice: Technical information is based on manufacturer literature and industry experience. Compatibility and operating limits depend on the complete pump configuration, pumped liquid and installation. Confirm the required part number against the pump's service documentation and satisfy yourself that the kit is suitable for your specific application before purchase.

Specification & guidance notice: Technical information and FAQ content are provided in good faith based on manufacturer literature and industry experience. Descriptions of hydraulic types and application suitability represent general guidance only and do not constitute a guarantee of performance. Actual results will depend on system design, pipework losses, media characteristics, and installation conditions. Please consult the manufacturer & thier documentation and satisfy yourself that the equipment is suitable for your specific application prior to purchase.