Nanu la reng karaniwan a gagamitan a materyales para keng pamag-seal para kareng balbula?

Dakal la reng uri da reng balbula, pero pareu la mu reng basic a gagawan da, yapin ing makakonekta o makaputol keng medium flow. Uli na niti, ing problema ning pamag-seal ning balbula prominenti ya.

Para makasiguradung ing balbula makaputol ya keng medium flow a alang leakage, kailangan makasiguradung ing valve seal e ya mesira. Dakal a sangkan ing pamagtagas ning balbula, kayabe na ing e makatuliran a disenyu ning istruktura, depektibung sealing contact surface, maluwag a fastening parts, maluwag a pamikabit king pilatan ning katawan ning balbula ampo ing bonnet, atbp. Deting sablang problema malyari lang magdalang e masanting a pamag-seal ning balbula. well, makanyan yang gagawang problema keng leak. Uli na niti, ing teknolohiya ning pamag-seal king balbula metung yang maulagang teknolohiya a maki kaugnayan king pamagganaka at kalidad ning balbula, at mangailangan yang sistematiku at malalam a pamanyaliksik.

Deng karaniwan a gagamitan a sealing materials para kareng balbula keraklan kayabe la reng makatuking uri:

1. NBR

Masanting a pamaglaban keng langis, matas a pamaglaban keng pali, masanting a pamaglaban keng pali, masikan a pamagdikit. Deng disbentaha na ilapin deng e masanting a resistensya keng mababang temperatura, e masanting a resistensya keng ozone, e masanting a electrical properties, ampo mas mababa ing elasticity.

2. EPDM

Ing pekamaulaga nang katangian ning EPDM yapin ing kayang matas a pamaglaban keng oxidation, pamaglaban keng ozone ampo pamaglaban keng corrosion. Uling ing EPDM kayabe ya keng polyolefin family, atin yang masanting a vulcanization characteristics.

3. PTFE

Ing PTFE atin yang masikan a chemical resistance, resistance kareng keraklan a laru ampo solvents (maliban kareng ketone ampo esters), masanting yang resistensya keng panaun ampo ozone resistance, pero e masanting ing resistensya keng dimla.

4. Cast iron

Tandanan: Ing cast iron magagamit ya para keng danum, gas ampo oil media na ating temperaturang≤100°C ampo ing nominal a pressure ning≤1.6mpa.

5. Nickel-based alloy

Tandanan: Deng alloys a makabasi keng nickel magagamit la kareng pipeline a ating temperaturang -70~150°C ampo ing engineering pressure PN≤20.5mpa.

6. Copper alloy

Ing copper alloy atin yang masanting a wear resistance ampo masanting ya para keng danum ampo steam pipes na ating temperatura≤200°Cat nominal pressure PN≤1.6mpa.