TD41W/D41W Handle operated ventilation butterfly valveDetailed product description：

The wind butterfly valve is manufactured by welding steel plates, which has the characteristics of short structural dimensions, light weight, and easy installation. The valve has a small driving torque, flexible opening and closing, and easy operation. An oil seal retaining ring is installed on the valve body, and there is no visible gap between the sealing pairs, resulting in a low leakage rate. The expansion gap between the butterfly plate and the valve body is large, which can effectively prevent jamming caused by thermal expansion and contraction. This valve can be equipped with various driving devices, such as manual device, worm gear transmission device, pneumatic device, and electric device. Ventilation butterfly valves are widely used in industrial pipelines such as metallurgy, petrochemicals, electricity, building materials, and mining to control or regulate the medium gas.

TD41W handle operated ventilation butterfly valve main component materials:

Nominal pressure (MPa)	0.05MPa	medium temperature	-30℃～-350℃
strength test	0.1MPa	Applicable Medium	Cold and hot air, smoke
Medium flow rate	25m/s	leakage rate	3%

TD41W handle operated ventilation butterfly valve main external connection dimensions: Unit: mm

Part Name	valve body	valve plate	valve stem
Material	carbon steel	carbon steel	Carbon steel, stainless steel

TD41W/D41W handle operated ventilation butterfly valve

DN	D	D1	L	L1	n-Фd	b	H1
one hundred and fifty	two hundred and forty	two hundred and ten	one hundred	three hundred and seventy-seven	8-12	eight	two hundred and fifty
two hundred	two hundred and ninety	two hundred and sixty	one hundred	four hundred and twenty-six	8-12	eight	two hundred and fifty
two hundred and fifty	three hundred and forty-five	three hundred and ten	one hundred and twenty	four hundred and eighty-five	8-12	ten	three hundred and fifty
three hundred	four hundred and five	three hundred and seventy	one hundred and twenty	five hundred and thirty-nine	8-14	ten	three hundred and fifty
three hundred and fifty	four hundred and fifty-five	four hundred and twenty	one hundred and forty	five hundred and thirty-nine	12-18	ten	three hundred and fifty
four hundred	five hundred and five	four hundred and seventy	one hundred and forty	six hundred and fifty-two	12-18	ten	four hundred and fifty
four hundred and fifty	five hundred and seventy	five hundred and thirty	one hundred and sixty	seven hundred and eighty-one	16-18	ten	four hundred and fifty
five hundred	six hundred and twenty	five hundred and eighty	one hundred and sixty	eight hundred and thirty-five	16-18	ten	four hundred and fifty
six hundred	seven hundred and twenty	six hundred and eighty	one hundred and eighty	nine hundred and forty-six	16-18	twelve	five hundred and fifty
seven hundred	eight hundred and twenty	seven hundred and eighty	one hundred and eighty	one thousand and forty-four	16-18	twelve	five hundred and fifty
eight hundred	nine hundred and twenty	eight hundred and eighty	two hundred	one thousand one hundred and fifty-nine	16-18	twelve	five hundred and fifty