STP MBR Diffuser Disc EPDM Membrane 12 inch Fine-Bubble (replacement)
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Product Description
Generic STP-DIFF-12 STP MBR Diffuser Disc EPDM Membrane 12 inch Fine-Bubble (replacement) — service spare for engine-room MBR sewage-treatment plant aeration fine-bubble diff.
Technical Specifications
- Component
- STP MBR Diffuser Disc EPDM Membrane 12 inch Fine-Bubble (replacement) material: EPDM Shore-A 60 fine-bubble diffuser disc membrane + 9 / 12 inch outer diameter + 1-3 mm thickness + factory-perforated + 1.5 / 2.5 mm bubble size + ABS support plate + 3/4 / 1 BSP air inlet Operating range: 0-0.5 bar / 0-40 C / fine-bubble 1.5-2.5 mm / oxygen transfer efficiency 6-8 % per m + EPDM Shore-A 60 + lifetime ≥ 5 yrs Process connection: 3/4 / 1 BSP air inlet thread + EPDM membrane sealing surface + ABS support plate Delivery: with EN 10204 3.1 material cert + installation note + oxygen transfer efficiency test report + bubble-size verification
Standards & Compliance
- Material
- EPDM Shore-A 60 fine-bubble diffuser disc membrane + ABS support plate
- HS Code
- 8421.99
Compatibility & Fitment
Form-fit envelope for Hamworthy Super Trident ST series, Evac MBR, Detegasa BIOMASTER, Wartsila Hamann HL-CONT Plus, Jets BioOPTI MBR sewage-treatment plant aeration fine-bubble diffuser disc + PP holder + PVC-U manifold + tee + cross + air-flow control diaphragm valve fitment.
Product Documentation
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Catalogue entry last verified: 2026-08-30. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.
Frequently asked questions
- Where can I buy STP-DIFF-12?
- STP-DIFF-12 can be ordered from cballast.com: request a quotation on this page or email sales@cballast.com, and the order ships worldwide.
- What is the manufacturer part number for this product?
- The manufacturer part number is STP-DIFF-12.
- What is the HS code for STP-DIFF-12?
- The customs tariff (HS) code for STP-DIFF-12 is 8421.99.
- Is a datasheet available for STP-DIFF-12?
- Yes — the STP-DIFF-12 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for STP-DIFF-12?
- The minimum order quantity is 1.
- Is STP-DIFF-12 available?
- Yes — STP-DIFF-12 is available to order: fulfilment is from supplier stock in cBallast's European network, dispatched directly from the warehouse to the customer, with the exact lead time stated in the quotation (reply within 24 hours).
- How do I get a price for STP-DIFF-12?
- Request a quotation with the quote button on this page or by email to sales@cballast.com — we reply within 24 hours with price, availability and lead time.