Uses and characteristic

Multifunctional noiseless check valve is utilized in high building, water outlet of pressurization-water delivery-pump. When pump is open, valve automatically open slowly; when water pump stop, valve realize two stages close(quick close and slow close), that can utterly eliminate water hammer.

1, It is one body multpurpose valve can replace butterfly valve, gate valve in exit of water pump.

2, No shock, no noise and stable, safe and reliable performance.

3, Small bulk, light weight, simple structure.

4, Good seal result, anti-friction, long working life.

Main technology parameter

Type		HoW41X-1.0	HoW41X-1.6	HoW41X-2.5
Nominal pressure		PN1.0MPa	PN1.6MPa	PN2.5MPa
Nominal diameter		DN50 - 250mm
The highest working prewwsure		1.0MPa	1.6MPa	2.5MPa
Sael text pressure		1.0MPa	1.6MPa	2.5MPa
Body test pressure		1.5MPa	2.4MPa	3.75MPa
Main parts Material	Body	Cast iron, Cast Steel, Stainless steel
	Disc	Nature rubber75%(Stainless steel)
	Plunger	Stainless steel
	Micro-adjustable valve	Brastil

Main external and connecting dimensions

Nominal diameter DN	L	H	D	D1	L1	L2	H1	H2	Z-φd
50	230	336	160	125	115	115	80	256	4-18
65	295	362	180	145	120	120	90	272	4-18
80	310	370	195	160	155	155	97.5	272	8-18
100	350	406	215	180	175	175	107.5	298	8-18
125	400	440	245	210	200	200	122.5	318	8-18
150	480	538	280	240	240	240	140	398	8-23
200	495	607	335	295	250	250	170	437	12-23
250	622	657	405	355	300	300	200	457	12-23