H42 type lift check valveDetailed product description：

Overview:
The H42 lift check valve has the characteristics of novel structure, small volume, light weight, low fluid resistance, reliable sealing, smooth opening and closing, wear resistance, long service life, oil pressure and slow closing not affected by the medium, and good energy-saving effect. It can be installed at the outlet of the water pump to avoid water hammer, water hammer sound and destructive impact, achieve the purpose of preventing backflow and protecting equipment, and have good energy-saving effect. Widely used in water supply and drainage, fire protection, construction, HVAC, and industrial systems.

The H42 lift check valve is normally in the closed state, and due to the pressure of the medium at the inlet end of the pipeline, it overcomes the spring resistance to open the valve. When the pressure of the medium at the inlet end is lower than that at the outlet end, the spring pushes the valve core towards the valve seat, causing the valve to close and preventing the medium from flowing back, thus playing a check function.  

The H42 lift check valve can be installed vertically or horizontally due to the use of a spring supported valve core.  

Performance specifications:

Technical Parameters		pressure rating
		sixteen	twenty	twenty-five	thirty-two	thirty-five	forty	forty-five	fifty	sixty	seventy
Work pressure (Mpa)		≤16	≤20	≤25	≤32	≤35	≤40	≤45	≤50	≤60	≤70
Test pressure (M)	intensity	twenty-four	thirty	thirty-seven point five	forty-eight	fifty-two point five	sixty	sixty-seven point five	seventy-five	ninety	one hundred and five
	seal	seventeen point six	twenty-two	twenty-seven point five	thirty-five point two	thirty-eight point five	forty-four	forty-nine point five	fifty-five	sixty-six	seventy-seven
medium		Water, oil, etc
temperature		≤120℃

Main component materials:

part Name	material
	C	P	P3	P8	R	R3	R8	R1	R2
valve body	WCB	ZG1Cr 18Ni9	CF3	CF8	ZG1Cr18 Ni12Mo2Ti	CF3M	CF8M	one point four five two nine	bipolar stainless steel
valve cover	WCB	ZG1Cr 18Ni9	CF3	CF8	ZG1Cr18 Ni12Mo2Ti	CF3M	CF8M	one point four five two nine	bipolar stainless steel
valve disc	WCB	ZG1Cr 18Ni9	CF3	CF8	ZG1Cr18 Ni12Mo2Ti	CF3M	CF8M	one point four five two nine	bipolar stainless steel
joystick	2Cr13	1Cr18 Ni9	304L	three hundred and four	1Cr18Ni 12Mo2Ti	316L	three hundred and sixteen	one point four five two nine	bipolar stainless steel
Applicable medium	Water Gas and oil	Nitric acid			Acetic acid			Containing chloride ions The medium

Main external dimensions:

Model	Nominal Diameter DN(mm)	Dimensions (mm)
		L			D	D1	D2	b	f	Z-Φ
		Series 1	Series 2	Series 3
H42W-25P H42W-25R	fifteen	-	eighty-five	eighty-five	ninety-five	sixty-five	forty-five	sixteen	-	4-Φ14
	twenty	-	ninety-five	ninety-five	one hundred and five	seventy-five	fifty-five	sixteen	-	4-Φ14
	twenty-five	-	one hundred	one hundred and five	one hundred and fifteen	eighty-five	sixty-five	sixteen	-	4-Φ14
	thirty-two	-	one hundred and five	one hundred and fifty	one hundred and thirty-five	one hundred	seventy-eight	sixteen	-	4-Φ14
	forty	-	one hundred and fifteen	one hundred and sixty	one hundred and forty-five	one hundred and ten	eighty-eight	eighteen	-	4-Φ14
	fifty	one hundred and forty	one hundred and twenty-five	one hundred and seventy	one hundred and sixty	one hundred and twenty-five	one hundred	twenty	three	4-Φ14
	sixty-five	one hundred and sixty	one hundred and forty-five	one hundred and eighty	one hundred and eighty	one hundred and forty-five	one hundred and twenty	twenty-two	three	8-Φ18
	eighty	one hundred and eighty-five	one hundred and fifty-five	two hundred	one hundred and ninety-five	one hundred and sixty	one hundred and thirty-five	twenty-two	three	8-Φ18
	one hundred	two hundred and ten	two hundred and ten	two hundred and ten	two hundred and thirty	one hundred and ninety	one hundred and sixty	twenty-four	three	8-Φ23
	one hundred and twenty-five	-	two hundred and seventy-five	two hundred and seventy-five	two hundred and seventy-five	two hundred and twenty	one hundred and eighty-eight	twenty-eight	three	8-Φ25
	one hundred and fifty	three hundred	two hundred and twenty-five	three hundred	three hundred	two hundred and fifty	two hundred and eighteen	thirty	three	8-Φ25
	two hundred	three hundred and eighty	three hundred and eighty	three hundred and eighty	three hundred and sixty	three hundred and ten	two hundred and seventy-eight	thirty-four	three	12-Φ25