QHXF-2000 type all-weather antifreeze breathing valveDetailed product description：

This valve is a ventilation device installed on a fixed top tank, which reduces oil evaporation loss, controls tank pressure, and prevents external flames from entering.

Main features of QHXF-2000 all-weather antifreeze breathing valve
This valve has the characteristics of high ventilation, low leakage, corrosion resistance, and is equipped with an electrostatic grounding wire to maintain an equipotential between the valve and the tank. This valve has anti freezing performance and is suitable for cold regions.

Main technical parameters of QHXF-2000 all-weather antifreeze breathing valve
Operating pressure: Positive pressure: 353Pa36mmH2O,

The main appearance and flange connection dimensions of QHXF-2000 all-weather antifreeze breathing valve

grid	Drawing number	Weight (Kg unit)	Installation size (mm)
			H	L	D	D1	D2	n	d
DN50	QZF-50	twenty-five	three hundred and sixty	three hundred and sixty-two	Φ140	Φ110	Φ90	four	fourteen
DN80	QZF-80	forty	four hundred and forty-five	five hundred and thirteen	Φ185	Φ150	Φ125	four	eighteen
DN100	QZF-100	forty-seven	four hundred and forty-five	five hundred and thirteen	Φ205