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Genuine EU/G7 spare parts
Diaphragm membrane for air-operated diaphragm pump (AODD)
The diaphragm is the primary wear component of the air-operated diaphragm pump. Selecting the correct diaphragm material for the fluid determines service life and seal integrity. TKT supplies genuine AODD diaphragm pump membranes, with part numbers verified by model and delivery within 1–3 working days.
Quotation response within 30 minutes (business hours)- 5,000+ spare parts in stock
- Genuine EU/G7
- Delivery in 1–3 working days
Submit pump model — receive spare parts quotation
Photograph the machine nameplate or type the brand + model. TKT engineers identify the correct part number and report stock availability within 30 minutes.
Or Zalo/Hotline 0941 400 488
Materials
Material & selection by fluid
| Materials | Application notes |
|---|---|
| PTFE (Teflon) | High chemical resistance, food/pharmaceutical grade |
| Santoprene | General purpose, long service life, cost-effective |
| Neoprene | General purpose, mild abrasion resistance |
| Buna-N (Nitrile) | Resistant to mineral oil, petroleum products |
| EPDM | Resistant to dilute acids/alkalis, hot water |
Reference replacement interval: 6–18 months depending on fluid — varies with fluid type and operating conditions.
Compatibility by brand
| Brands | Line / series | |
|---|---|---|
| Sandpiper | S/U-series | View pump line → |
| Finish Thompson | FT-series | View pump line → |
Why choose TKT
Authorized genuine pump spare parts distributor
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Questions about AODD diaphragm pump membranes
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What materials are used for AODD diaphragm pump membranes?
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How do I find the correct membrane part number for my pump?
Submit pump model — receive correct spare parts quotation within 30 minutes
TKT engineers verify the correct part number against manufacturer drawings, report stock status, and deliver within 1–3 working days.





