Factory source Combination Air Valve For Sewage - Back-flow safety valve – Convista

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Factory source Combination Air Valve For Sewage - Back-flow safety valve – Convista Detail:

Specifications

AHN42F-P25C, AHN42F-P18C

This valve is mounted on the liquid effluence pipeline of the pan pump’s outlet of the liquefied petroleum gas station, when front pump pressure exceeds the stipulated valve, the valve will open automatically and lead to safe return of the liquid so that ensures the safe operation of equipment and pipelined.

Dimension

Back-flow safety valve

Nominal diameter DN(mm)	Dimension(mm)
Nominal diameter DN(mm)	D	D₁	D₂	b	Z-Φd	L	H
25	115	85	65	16	4-14	160	325
32	140	100	78	16	4-18	180	335
40	150	110	85	16	4-18	200	236
50	165	125	100	16	4-18	230	266
65	185	145	120	20	4-18	290	430
80	200	160	135	20	8-18	310	490
100	215	180	155	22	8-18	350	548
150	280	240	210	24	8-23	480	706

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