H42W Vertical check valveDetailed product description：

The H42W 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. H42W check valve can be installed vertically or horizontally due to the use of spring supported valve core.

Main performance specifications for H42W vertical check valve:

Model	Nominal Pressure PN(MPa)	Test pressure SP (MPa)		Applicable temperature (℃)	Applicable Medium
		housing	seal
H42W-25P	two point five	three point eight	two point eight	≤200	Nitric acid
H42W-25R					Acetic acid
H42W-40P	four	six	four point four		Water and oil products
H42W-40R
H42Y-40

H42W vertical check valve main external dimensions and connection dimensions (mm):

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