High-Performance Lift Check Valve H41h for Fluid Control

• Customization: Available
• Media: Water
• Temperature: Ordinary Temperature
• Model NO.: H41H
• Material: Cast Steel
• Connection Form: Flange
• Structure: Lift Type
• Pressure: Ordinary Pressure
• Flow Direction: Unidirection
• Standard: ANSI
• Application: Industrial Usage
• Size: DN50-600
• Medium: Water, Gas, Oil
• Connection: Flange, Weld
• Colour: Grey, Blue, Black, Yellow
• Transport Package: Polywood Case
• Specification: DN50~DN600
• Trademark: QUANSHUN
• Origin: Zhengzhou
• Production Capacity: 200PCS/Month

Product Description

Lift Check Valve
Effectively preventing medium from backflow, the lift check valve is suitable for petroleum, chemical, hydraulic, power station and other conditions of the pipeline, cut off or connect the medium, can be used for high-pressure conditions.

Features
1.The valve disc moves up and down along the midline of the valve body. Under the pressure of the fluid which flows in one direction, the valve disc will be raised up from the sealing surface of the valve seat. If there is backflow, the valve disc will return back to the valve seat to cut off the medium. 
2.To further reduce the impact, the lift check valve is engineered with piston dashpot, which is installed with spring.
3.There are small holes on the piston. When the piston is moving, the medium will flow slowly, which will reduce the impacting force to the valve greatly.

Capability Criterion

Type	Testing pressure MPa			Applicable medium	Applicable temperature(ºC)
	Shell	Liquid sealing	Air-tight seal
H41H-16	2.4	1.76	0.6Mpa Compressed air	Water, steam, oil, etc.	≤200
H41H-25Q	3.8	5.75			≤350
H41H-16C	2.4	1.76			≤425
H41H-25	3.8	2.75
H41H-40	6.0	4.4
H41H-64	9.6	7.04
H41H-100	15.0	11.0

Main external dimension and connection dimension

PN MPa		Nominal Diameter DN(mm)
		50	65	80	100	125	150	200	250	300	350	400	500	600
2.5	L	230	290	310	350	400	480	550	650	750	850	950	1150	1450
	H	160	175	185	220	248	276	350	410	430	466	560	618
4.0	L	230	290	310	350	400	480	550	650	750	850	950	1150	1450
	H	160	175	185	220	248	276	350	410	430	466	560	618
6.4	L	300	340	380	430	500	550	650	775	900	1025	1150	1450
	H	177	197	212	248	296	330	385	445	474		616	1075
10.0	L	300	340	380	430	500	550	650	775	900
	H	210	227	235	274	310	340	374	440	505

Applications
Petroleum industry, chemical industry, hydraulic power industry.