valavu yoyendera duckbill

Kufotokozera Kwachidule:

Valavu yosinthika yosabwerera, yomwe imadziwikanso kuti duckbill valve, ikutengera kapangidwe ka rabara, yopangidwa ndi mphira flange, valavu ndi kupanga duckbill imodzi.
Amagwiritsidwa ntchito kwambiri ku gombe, gombe, marina, posungira, ngalande ya Municipal Administration, zimbudzi ndi malo ena okhala ndi.Valavu imatha kusinthidwa ndi chitseko, chipata, kuthetsa vuto la matope, silt, miyala, zomera, kutsekereza kwachilengedwe kwamadzi. .

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Tsatanetsatane wa Zamalonda

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Miyeso yayikulu

PN(mm)	DN(mm)	H	H0	H1	b	B	D2	2T	Ndemanga
1.0	150	285	96	76	16	247	186	17	Pakamwa molunjika
	200	346	96	98	15	306	230	18	Pakamwa molunjika
	250	400	100	115	17	380	300	16	Pakamwa molunjika
	300	430	97	102	26	480	360	20	Pakamwa molunjika
	350	520	90	150	26	540	410	30	Pakamwa molunjika
	400	550	90	135	28	605	460	25	Pakamwa molunjika
	450	605	90	190	30	645	514	26	Pakamwa molunjika
	500	630	90	170	30	750	564	30	Pakamwa molunjika
0.6	600	760	110	-	30	880	668	-	Kupinda pakamwa
	700	775	110	-	40	950	772	-	Kupinda pakamwa
	800	860	110	-	40	1220	874	-	Kupinda pakamwa
	900	940	110	-	40	1320	976	-	Kupinda pakamwa
	1000	1150	140	-	30	1430	1078	-	Kupinda pakamwa
	1200	1210	160	-	42	1620	1298	-	Kupinda pakamwa