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Mechanical seal for Grundfos pump

Mechanical seal for Grundfos pump

Mechanical seal for Grundfos pump

Product Details:

Place of Origin: China
Brand Name: BETTER
Certification: API 7K, 6A, 8C, ISO
Model Number: Mission Magnum

Payment & Shipping Terms:

Minimum Order Quantity: 1 SET
Price: USD250.00
Packaging Details: Carton, Plywood Case
Delivery Time: 7-10 days
Payment Terms: T/T, West Union
Supply Ability: Fast Delivery, Plenty in Stock
Minimum Order Quantity: 1 PC
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Detailed Product Description
Material: Tungsten Face Backup Packing: Teflon
Type: 2.5"

5A 648414308 22451-1 Seal, Mechanical(Tungsten Carbide Faces)
5A 648414340 22451-2 Seal, Mechanical(Ceramic Carbon Faces)
5A 648414357 22451-3 Seal, Mechanical(Silicon to Tungsten Faces)
5A 22451-9A 22451-9A Seal, Mechanical(Silicon Carbide Faces)
5A 661007005 25014-04M-B Packing, Shaft, w/latern ring(Graphite)
5A 661007008 25014-04M-BA Packing, Shaft, w/latern ring(King)
5A 661007011 250147-04M-D Packing, Shaft, w/latern ring(Teflon)
5A 661007006 25014-04M-C Packing, Shaft, w/latern ring(Kevlar)
5A 648408607   Packing, Shaft-M.S. Backup(Graphite)
5A 648408607   Ring, Latern

250 series Centrifugal Pump Parts

BETTER could provide a wide range of open type impeller and semi open impeller, casing, stuffing box, wear pad for all series and brands of heavy duty centrifugal pumps, we have improved the original design with hydraulic hole one impeller position, which have prolonged the impellers' life greatly.

We have ductile iron, hard iron, high chrome iron material for option, if the quantity is ok, we accept to the customized impeller in bronze, stainless steel and other special material not popular used.

All impellers are investment casted or resin-casted with pickling (acid washing) as our power-end parts, which are also available in cast steel in favor of ductile. All other sizes are resin-casted with pickling (acid washing) to ensure smooth surface finish. To ensure quality, we meticulously check threaded holes by fitting their bolts to ensure the threads are clean and clear. All casings are of course pressure tested and all impellers and dynamic balanced. Each casing is properly pressure tested prior to shipping.
It is our standard to deliver all of our impellers in foam molded packing in boxes. If your company has any specific packaging requirements, from branding of castings to box labels, please let us know.


Casing,3×2×13, H19203-01-30A , 641101753, P25D233H, 1769-002, 142523HAS, 052134000

Casing,4×3×13, H19205-01-30A , 641101902, P25D343H, 17680-002, 142534HAS, 052134100

Casing,5×4×14, H19222-01-30A , 641102058, 17681-002, P25D454H, 052134200

Casing,6×5×11, H19122-01-30A , 641101456, 17682-002, 142556HAS-11, 052134300

Casing, 6×5×14, H19123-01-30A, 641101605, 17683-002, 142556HAS-14, P25D564H, 052134400

Casing, 8×6×11, H19763-01-30A, 641102157, 17684-002, P25D681H, 052134500

Casing,8×6×14, H19117-01-30A , 641101308, 17685-002, 142568HAS, P25D684H, 052134600

Casing,10×8×14, H20937-01-30A, 641102322

Housing Gasket: P25HG, 10399-46-1, 17648, 13C-250-HGA, 720700, 052137100

Housing Stud w/nut: P25HSN,17649/5327-034, 15-250-HSN, B16092121000048& 19052121000000, WWHS1S3HA & WWJ11S800, H2507-3 & H3932-61



Impeller,3×2×13, H19204-XX-30, 641215603, 17650-XX-112, 1225231XX, P25D233MRxxx, 05213571X, H2521-90-30

Impeller,4×3×13,H19206-XX-30, 641217005, 17651-XX-112 , 1225341XX, P25D343MRxxx, 05213581X,H2522-90-30

Impeller,5×4×14, 19224-XX-30, 641217831, 17652-XX-112, 1225451XX, P25D454MRxxx,05213591X,H2525-AO-30

Impeller,6×5×11, 19121-XX-30, 641211602, 17653-XX-112, 1225561XX, P25D561MRxxx,05213601X,H2524-70-30

Impeller, 6×5×14, 19121-XX-30, 641212105, 17654-XX-112, 1225561XX, P25D564MRxxx,05213621, H2524-AO-30

Impeller, 8×6×11, 19121-XX-30, 641211602, 17655-XX-112, 1225661XX, P25D561MRxxx,05213601X, H2524-70-30

Impeller,8×6×14, 19116-XX-30, 641209903, 17656-XX-112, 1225681XX, P25D584MRxxx,05213631X, H2525-AO-30

Impeller,10×8×14, 21867-XX-30, 641221007



Stuffing box, mech.seal: 22223-01-30, 641116157, 17658-002, 11-250-SBPG, P25SB/MS, 052136410,721350

Stuffing box, packed: 20614-01-30, 643365042, 17657-002, 11C-250-SBMSS, P25SB/PK, 052144910

Bolt, stuffing box: 3861-117, 3861-117, 648401016, WWG31H187, H3861-117



Casing wear pad, 2501-37,2502-37,2503-37,2504-37,2505-37,2506-37,2507-37

H2501-01-30A, H2502-01-30A, H2503-01-30A, H2504-01-30A,H2505-01-30A,H2506-01-30A,H2507-01-30A


Please don't hesitate to contact our sales if you are interested in any of our products.
Sales Assistant
Att.: Mike Lee
BETTER Drilling Fluid Equipment Industrial Limited

Contact Details
BETTER Drilling Fluid Equipment Industrial Limited

Contact Person: Mr. Jim

Tel: 86-534-5737702

Fax: 86-534-5340516

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