Rubber check valve-Water conservancy control valve series-水利控制阀厂家-上海冠环阀门制造有限公司

Product overview

Rubber flap check valve, also known as rubber flap check valve, is mainly composed of three main parts: valve body, valve cover and valve flap. Among them, the rubber flap is made of steel plate as the pressure-bearing part and reinforced nylon cloth as the backing, the outer layer is made of hot vulcanization integral rubber coating technology, and the valve seat adopts the ceramic spraying process to make the valve life longer. The valve adopts the design of the whole water basin, and has the characteristics of small head loss, not easy to accumulate debris, and easy maintenance. The valve is mainly suitable for water supply and drainage systems.

Features

Due to the small closing stroke, the rubber flap check valve can be fully opened with a stroke angle of only 35°, and the closing speed is fast. Fast closing, 10%-15% travel is slow closing. The slow closing time can be adjusted, the adjustment range is 1-15 seconds, and there is no indication of the opening and closing position of the oil cylinder to reduce the damage of water hammer to the pump.

Main part material

Part Name	Body	Bonnet	Disc
Material	Cast iron	Cast iron	Steel + reinforced nylon cloth

Main performance specifications

Model	Nominal pressure PN (MPa)	Sealing test pressure (MPa)	Shell test pressure (MPa)	Max working pressure (MPa)	Medium temperature
H44X-10	1.0	1.1	1.5	1.0	0-80℃
H44X-16	1.6	1.76	2.4	1.6	0-80℃

Main external dimensions

Model	DN	L	D	D1	dn	n
H44X-10/16	50	203	165	125	17.5	4
	65	216	185	145	17.5	4
	80	241	200	160	17.5	8
	100	292	220	180	17.5	8
	150	356	285	240	22	8
	200	495	240	295	22	8
	250	622	395	350	22	12
	300	698	445	400	22	12
	350	787	505	460	22	16
	400	914	565	515	22	16
	450	978	615	565	26	20
	500	978	670	620	26	20
	600	1295	780	725	30	20