The HC44X check valve, also known as a check valve, is designed to prevent the medium in the pipeline from flowing back. The valve that relies on the flow and force of the medium to open or close itself, in order to prevent the backflow of the medium, is called a check valve. Check valves belong to the automatic valve category and are mainly used in pipelines with unidirectional flow of medium. They only allow medium to flow in one direction to prevent accidents.

Performance characteristics of HC44X check valve

The HC44X rubber plate check valve is composed of a valve body, a valve cover, a valve disc, and a spring. It is mainly used at the outlet of pipelines in industrial sectors such as water supply and drainage systems, petroleum, and chemical industries to prevent medium backflow. Due to the inclined design of the sealing ring of this product, the closing time is short, which can reduce water hammer pressure. The valve disc is made of rubber and steel plate through high-temperature compression, which is resistant to erosion and has good sealing performance. The product structure is simple, and maintenance, repair, and transportation are all very convenient.

Three component materials

Part Name	Materials
Valve body and valve cover	Nodular cast iron
Valve flap	Nodular cast iron+EPDM
Filler	EPDM
Hexagonal socket nut	Stainless steel
Shim	EPDM

Main technical parameters

◆ Nominal pressure: 1.0-1.6 MPa

◆ Nominal diameter: 50-400mm

◆ Working temperature: 0-80 ℃

◆ flange standard: EN1092-2/DIN3202 F6

◆ Test standards: EN1074-1 and 2/EN12266

◆ Applicable medium: clean water

◆ Drive mode: automatic

◆ Compliant with standard: DIN3202 F6/EN1074-3

Structural diagram

Size	L	D	C		B	n-d		b	f
DN50	200	165	125		99	4-19		20	3
DN65	240	185	145		118	4-19		20	3
DN80	260	200	160		133	4-19	8-19	22	3
DN100	300	220	180		154	8-19		22	3
DN125	350	250	210		184	8-19		24	3
DN150	400	285	240		210	8-23		24	3
DN200	500	340	295		265	8-23	12-23	26	3
DN250	600	405	350	355	319	12-23	12-28	27	3
DN300	700	460	400	410	370	12-23	12-28	28	4