Kornwerkshop
Rigorous flow control

Aeris D-Series Replacement Diaphragms

Elastic-response replacement module in synthetic elastomer for ventilation devices

€65€45

  • 3 circular membranes in synthetic elastomer, 1 ABS fixing ring, kraft case
  • Circular synthetic elastomer membranes for fast-response diaphragms
  • Locking retainer ring precision-molded in ABS thermoplastic polymer
  • Standardized replacement to restore the original airtightness and flow resistance
  • Flat protective box made of sealed recycled kraft cardboard
✓ In stock SKU: AER-85104 Replacement Diaphragms and Modules
✓ 30-day returns
· Checked before dispatch

Aeris D-Series Replacement Diaphragms

Elastic-response replacement module in synthetic elastomer for ventilation devices
Over the months and with continued cycles of mechanical flexing, the internal membranes of respiratory devices can show some material fatigue or slight buildup of mineral salts from oral condensation. The Aeris D-Series replacement set lets you fully renew the heart of your equipment without needing to discard the main structure. Each set includes three calibrated diaphragms in high-resilience synthetic elastomer and a replacement retainer ring made of ABS thermoplastic polymer. Installation is a straightforward manual procedure that restores the device's original resistance curve, ensuring that every ventilatory work session retains the initial design precision.
CLEAN & SAFE INGREDIENT ASSURANCE
✓ Synthetic elastomer, free of natural rubber✓ Thermoplastic ABS polymer, free of bisphenol A✓ No volatile plasticizers or residual solvents✓ Flat case made from recycled kraft cardboard✓ Material resistant to degradation from salt condensation✓ Suitable for washing with mild water-based disinfectants
MAINTENANCE SUPPLY

Select the replacement membrane pack

1 D-Series pack (3 membranes) €45 €65 The basic replacement set for routine annual maintenance. 2 D-Series packs (6 membranes) €79 €130 Balanced option to ensure continuous backup supplies without interruptions. 3 D-Series packs (9 membranes) €109 €195 Comprehensive volume for training groups or shared equipment.
1-CLICK INSTANT ORDER

Express 1-Click Order (Name + Phone)

Selected Package: 2 D-Series packs (6 membranes) (€79)

Payment method
256-bit SSL Encrypted • Cash On Delivery Available

Returns within 30 days

Customers have 30 days after delivery to arrange a return under our policy. Simply send a message to our technical department.

✓ MANUFACTURING TOLERANCE

Clean edge cutting with no burrs

Recent stock lot
Raw Sourcing
Verified suppliers
Ingredient Safety
Checked before dispatch
Batch Integrity
Sealed protective packaging
Transparent Sourcing Promise: Every production lot is crafted with high quality control, sealed with tamper-evident packaging, and inspected for freshness before dispatch.

Recovery of the instrument's initial tightness

Day 1

Seal restoration

The device regains its original calibration by eliminating small leaks caused by previous use.

Day 60

Stable behavior

The elastomer keeps its original elasticity against condensation and routine cleaning.

Day 120

Wear assessment

The condition of the disc is checked to determine whether the next unit from the kraft pack should be used.

Jordi Alcover

Jordi Alcover

Technical engineer in materials and fluid dynamics
17 years in the design of mechanical respiratory components
The response of a resistive ventilation device depends entirely on the homogeneity of its diaphragm. Periodically renewing the membrane with constant-thickness elastomer is the only way to preserve the precision of pulmonary work.

Step by step for safe membrane replacement

Removal of the old retainer

Check that no whistling occurs from perimeter leaks when starting the first set of the day.

Placement and vacuum test

Rinse the assembly after use with cold or lukewarm water and visually check that the diaphragm has not shifted out of place.

Flat seating check

Never force the edges of the disc with sharp objects when fitting it, use only clean fingertips.

Service life cycles of each diaphragm
Just installed
Instant recovery of firmness at the click or opening of the air flow.
Months two to four
Identical mechanical response in every session, with no play or misalignment.
End of cycle
The point at which it is recommended to check for visible stretching before making the next change.

Hermetic protection and shipping

The diaphragm and retaining ring kit is packaged in a rigid flat envelope made of recycled kraft cardboard with an intact seal. Shipments are made in discreet packages with tracked delivery.

ORDER

Keep your equipment calibrated with Aeris D-Series replacement parts

Fast insured dispatch with real-time shipment tracking.

1 D-Series pack (3 membranes)
€45
Select
2 D-Series packs (6 membranes)
€79
Select
3 D-Series packs (9 membranes)
€109
Select

Replacement, service life and ordering guide

How often is it advisable to renew the diaphragm? +

For daily use routines, it is suggested to change the membrane every four to six months to ensure the elastomer's flexibility does not vary from the nominal settings.

Are tools required to install the new membrane? +

No, the change is done manually by unscrewing the device's chamber, removing the ABS polymer ring and positioning the new diaphragm on its flat seat.

What is the return policy applicable to these replacement parts? +

The right of return applies for 30 days after receipt, provided the kraft sleeve seal remains intact and the membranes remain unused in their original condition.

How are payments made in the store? +

Payment is processed only by cash on delivery when the merchandise is delivered or by bank transfer prior to shipment.

Notes from technical buyers

★★★★★

"I had been using my device daily for ten months and had noticed that the original membrane was closing with less force. I changed the diaphragm and put in the new ABS ring; the feeling was exactly the same as when I first used it."

Andres P. Customer
Delivery & payment Returns & refunds Terms & conditions