| Product Name | Custom Silicone Rubber Diaphragm Air Release Pump Check Valve Inflatable Seals Umbrella Valve 5.8mm |
| Material | EPDM/NR/SBR/CR/NBR/Silicone,etc. Material does not contain recycled rubber, environmental protection, no odor, and meets Rosh standards |
| Hardness | 30-90 Shore A |
| Temperature Range | -20ºC to 180ºC. |
| Colors | Black,White or Customized |
| Types | Recess Bumpers; Mushroom Stem Bumpers; Plug Bumpers; Screw Bumpers; Bar Pattern Bumpers |
| Metal Gaskets | Bumpers can be embedded with metal gaskets or not |
| Applications | Used in electronics, aerospace, healthcare, construction, transportation, and defense applications by the OEM and replacement part markets |
| MOQ | 1000 PCS |
| Free Samples | Available |







About us

R&D and Quality Control

Milesun's R&D team has more than 120 staff ,and gathers ambitious and creative experts and professors.
Keeping responsibility in mind, R&D team brings multiple capabilities, supports Milesun keep leading at rubber&plastics industry.
R&D team forms strict management system on each project in compliance with latest world scientific standard and requirements.
Our R&D and production management follows TUV & IS014001 Environmental System.
Beyond these, Our finished products meet approval of ISO9001, IATF16949 & UL quality control system.
Milesun can make our products meet standards as customer's demand like CE, ROHS, REACH, CP65, PAHS, FDA, TSCA,etc.





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