hat
3. Lè enklinasyon nan tiyo gen plis pouvwa pase 7 ° -12 °, nan adisyon a tiyo a orizontal nan 5 fwa longè seri nan fen a devan nan tiyo a enkline, yon valv echapman ta dwe bay nan fen a anwo nan tiyo a desann. Pandan pwosesis la ponpe, si gen yon kavite nan tiyo a enkline, valv la tiyo echapman yo ta dwe louvri premye jiskaske tiyo a enkline plen ak konkrè, ak lè valv la tiyo echapman kontan mòtye a, se valv la tiyo echapman fèmen epi li se nòmal ponpe fèt .
eng
3. When the pipe inclination is greater than 7°-12°, in addition to the horizontal pipe of 5 times length set at the front end of the inclined pipe, an exhaust valve should be provided at the upper end of the down pipe. During the pumping process, if there is a cavity in the inclined pipeline, the exhaust valve should be opened first until the inclined pipeline is filled with concrete, and when the exhaust valve overflows the mortar, the exhaust valve is closed and normal pumping is performed.