Valve Basic

A vharafuchinhu chekudzora mutsara wemvura. Basa rayo guru nderokubatanidza kana kugura kutenderera kwepombi mhete, kushandura mafambiro ekuyerera kwepakati, kugadzirisa kudzvinyirira uye kuyerera kwepakati, uye kudzivirira kushanda kwakajairika kwepombi nemidziyo.

一.Kurongwa kwemavharuvhu

Zvinoenderana nekushandiswa uye basa rinogona kukamurwa kuita:

1. Shut-off valve: cheka kana kubatanidza pombi yepakati. Zvakadai se: vharafu yegedhi, vharuvhu yepasi, vharafu yebhora, butterfly vharafu, diaphragm vharafu, plug vharafu.

2. Tarisa vharafu: kudzivirira svikiro riri mupombi kuti risayerera richidzokera kumashure.

3. Kugovera valve: shandura mafambiro ekuyerera kwepakati, kugovera, kuparadzanisa kana kusanganisa pakati. Zvakadai semavharuvhu ekugovera, misungo yeutsi, uye mavharuvhu matatu ebhora.

4. Kugadzirisa valve: gadzirisa kudzvinyirira uye kuyerera kwepakati. Zvakadai sekumanikidza kudzikisa vharafu, regulating vharafu, throttle valve.

5. Chengetedzo vharafu: kudzivirira kumanikidzwa kwepakati mumudziyo kubva pakudarika kukosha kwakatarwa, uye kupa overpressure kuchengetedza kuchengetedza.

二. Basic parameters yevharafu

1. Iyo yezita dhayamita yevharuvhu (DN).

2. Kudzvinyirirwa kwezita revhavha (PN).

3. Kudzvinyirira uye kupisa kwekushisa kwevhavha: Kana kupisa kwekushanda kwevhavha kunodarika kutaridzika kwekushisa kwezita rekumanikidza, kushanda kwayo kwakanyanya kunofanira kuderedzwa maererano.

4. Valve pressure unit conversion:

5. Iyo inoshandiswa nzira yevharafu:

Industrial mavharuvhu anoshandiswa peturu, makemikari indasitiri, simbi, magetsi, simba renyukireya uye mamwe maindasitiri. Nhepfenyuro dzakapfuura nepakati dzinosanganisira magasi (mhepo, chiutsi, ammonia, marasha gasi, petroleum gasi, gasi rechisikigo, nezvimwewo); zvinwiwa (mvura, liquid ammonia, mafuta, acids, alkalis, etc.). Dzimwe dzacho dzine ngura sepfuti dzemuchina, uye dzimwe dzine radioactive zvakanyanya.