Grundfos Alumina/Ceramic Submersible Pump Seal Replacement from China Manufacturer

Grundfos Alumina/Ceramic Submersible Pump Seal Replacement

Type 1 Elastomer Bellows Seals for Caustic Pump Copy

thumb Type 1 Elastomer Bellows Seals for Caustic Pump Copy

Grundfos Alumina/Ceramic Submersible Pump Seal Replacement

• Resilient Mounting: The ceramic stationary seat is mounted in a robust rubber cup to absorb the vibration and shock loads common in portable submersible pumps.

• Compact Profile: Designed to fit the tight axial space inside compact submersible motor housings.

Model:502

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Key Features

• Submersible Fit: Engineered for Grundfos Unilift (KP, AP) and smaller S-range submersible drainage pumps.

• Cost-Effective Durability: Alumina Ceramic offers excellent corrosion resistance and hardness for greywater and light wastewater at a fraction of the cost of carbide seals.

• Oil Chamber Application: Perfect for the upper seal position (motor side) where the seal runs in clean oil, protecting the electric motor.

Technical Specs		Materials
Mediums	Water, oil and weakly-corrosive mediums	Stationary Ring	Ceramic/Sic/TC
Pressure	≤2.5MPa	Rotary Ring	Carbon/Sic/TC
Temperature	-20℃ to 120℃	Secondary Seal	NBR/EPDM/Viton
Speed	≤15m/s	Spring and Metal Part	Stainless Steel

Product Specifications

Metric Shaft Size D1	Size Code	D3	D7	L1	L4
14	0140	24.0	25.0	23.0	12.0
16	0160	26.0	27.0	23.0	12.0
18	0180	32.0	33.0	24.0	13.5
20	0200	34.0	35.0	24.0	13.5
22	0220	36.0	37.0	24.0	13.5
24	0240	38.0	39.0	26.7	13.3
25	0250	39.0	40.0	27.0	13.0
28	0280	42.0	43.0	30.0	12.5
30	0300	44.0	45.0	30.5	12.0
32	0320	46.0	48.0	30.5	12.0
33	0330	47.0	48.0	30.5	12.0
35	0350	49.0	50.0	30.5	12.0
38	0380	54.0	56.0	32.0	13.0
40	0400	56.0	58.0	32.0	13.0
43	0430	59.0	61.0	32.0	13.0
45	0450	61.0	63.0	32.0	13.0
48	0480	64.0	66.0	32.0	13.0
50	0500	66.0	70.0	34.0	13.5
53	0530	69.0	73.0	34.0	13.5
55	0550	71.0	75.0	34.0	13.5
58	0580	78.0	78.0	39.0	13.5
60	0600	80.0	80.0	39.0	13.5
63	0630	83.0	83.0	39.0	13.5
65	0650	85.0	85.0	39.0	13.5
68	0680	88.0	90.0	39.0	13.5
70	0700	89.0	92.0	45.5	14.5
75	0750	96.0	97.0	45.5	14.5
80	0800	104.0	105.0	45.0	15.0
85	0850	108.0	110.0	45.0	15.0
90	0900	114.0	115.0	50.0	15.0
95	0950	118.0	120.0	50.0	15.0
100	1000	124.0	125.0	50.0	15.0

Workshop

This workshop is equipped with professional processing equipment and integrated with standardized material warehousing management, enabling a one-stop production process from precision machining to finished product delivery. It ensures part machining accuracy and production efficiency, meeting various high-specification manufacturing requirements.

Metal Bellows Seals for High Temperature Pumps 606

Product Research, Development and Testing

Our Product R&D and Testing focuses on optimizing seal performance through advanced simulation and material analysis. All seals undergo rigorous trials, including thermal cycling and pressure tests, to ensure durability, minimal leakage, and long service life in demanding industrial environments.