U-section butterfly valve is Bidirectional sealing, kuita kwakanakisa, diki torque kukosha, inogona kushandiswa pakupera kwepombi yekudurura vharafu, kuita kwakavimbika, chigaro chisimbiso mhete uye muviri wevharuvhu zvakabatanidzwa mune imwe, kuitira kuti vharafu ive yakareba. hupenyu hwebasa