Can someone confirm what the “valve membrane” is for spectra? : r
![](https://i.redd.it/can-someone-confirm-what-the-valve-membrane-is-for-spectra-v0-u1929a2fhjxb1.jpg?width=1170&format=pjpg&auto=webp&s=7016700158725e2632deeeffb5506de7aa5da0d5)
![](https://images.agoramedia.com/ugcphotoservice/100/2018/5/23/69591095/83b9084f-36c4-4cd3-8cfb-eec5a3101750.png)
Changed duckbill valves! - Exclusive Pumping, Forums
![](https://m.media-amazon.com/images/I/617PT0lxZ-L._AC_UF350,350_QL80_.jpg)
PumpMom Pump Parts for Spectra S1 Spectra S2 Spectra 9 Plus, Compatible with Spectra Duckbill Valve and Silicone Membrane Replace Spectra S2 Replacement Parts Not Original Spectra Pump Parts : Baby
![](https://www.tandfonline.com/cms/asset/aa6738d1-56ed-42b7-a011-0eae1f3e425e/dnsa_a_12173941_f0007_c.jpg)
Full article: Graphene Oxide as a Collagen Modifier of Amniotic Membrane and Burnt Skin
![](https://ars.els-cdn.com/content/image/1-s2.0-S0011916422003009-gr6.jpg)
Recycling of aged RO membranes as NF/UF membranes: Biosafety evaluation and aging process - ScienceDirect
Conceptual schematic of the JPL piezoelectric microvalve.
![](http://spectra-baby.com.au/cdn/shop/articles/valve2x-1-scaled_7ac6a174-c096-4486-a0e2-6b545b4606e2.jpg?v=1650063587)
How often should you replace breast pump valves? – Spectra Baby Australia
Three-dimensional (3D)-printed active microfluidic membrane valve. (A)
![](https://pupsik.sg/media/catalog/product/cache/526b8e1055b354160a89acbc8a2fa467/s/p/spectra_wide_neck_accessory_set_new_28mm_1.jpg)
Maymom Flange for Spectra with Valve & Membrane (Narrow-Neck), 1pc (9 sizes, 15-36mm)
![](https://aeroflowbreastpumps.com/media/wysiwyg/SGP_About2.jpg)
Spectra Synergy Gold Portable Breast Pump
![](https://aeroflowbreastpumps.com/media/wysiwyg/SGP_About3.jpg)
Spectra Synergy Gold Portable Breast Pump
![](https://www.researchgate.net/publication/343663178/figure/fig2/AS:978869939085320@1610392188562/Schematic-of-typical-bench-top-experimental-setup-used-for-cycled-ageing-as-well-as_Q320.jpg)
Membrane HA content. (a) Typical ATR-FTIR spectra (1400 cm -1 PVDF;