TD641W/D641W Pneumatic Ventilation Butterfly ValveDetailed product description：

TD641W/D641W Pneumatic Ventilation Butterfly Valve Main Parameters:

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%

TD641W Pneumatic Ventilation Butterfly Valve Main Component Materials:

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

TD641W/D641W Pneumatic Ventilation Butterfly Valve External Connection Dimensions: Unit: mm

DN	D	D1	L	L1	L2	n-Фd	b
three hundred	four hundred and five	three hundred and seventy	one hundred and twenty	seven hundred and sixteen	two hundred and twenty	8-12	ten
three hundred and fifty	four hundred and fifty-five	four hundred and twenty	one hundred and forty	seven hundred and eighty-six	two hundred and forty	8-14	ten
four hundred	five hundred and five	four hundred and seventy	one hundred and forty	nine hundred and twenty-four	two hundred and seventy	12-18	ten
four hundred and fifty	five hundred and seventy	five hundred and thirty	one hundred and sixty	nine hundred and ninety-nine	two hundred and ninety-five	12-18	ten
five hundred	six hundred and twenty	five hundred and eighty	one hundred and sixty	one thousand and seventy-nine	three hundred and twenty-five	12-18	ten
six hundred	seven hundred and twenty	six hundred and eighty	one hundred and eighty	one thousand one hundred and forty	three hundred and eighty	16-18	twelve
seven hundred	eight hundred and twenty	seven hundred and eighty	one hundred and eighty	one thousand two hundred and forty	four hundred and thirty	16-18	twelve
eight hundred	nine hundred and twenty	eight hundred and eighty	two hundred	one thousand three hundred and fifty	four hundred and ninety	16-18	twelve
nine hundred	one thousand and forty	nine hundred and ninety	two hundred	one thousand four hundred and fifty	five hundred and forty	16-18	fourteen
one thousand	one thousand one hundred and forty	one thousand and ninety	two hundred and twenty	one thousand five hundred and fifty	five hundred and ninety	20-18	fourteen
one thousand and one hundred	one thousand two hundred and forty	one thousand one hundred and ninety	two hundred and twenty	one thousand and eight hundred	six hundred and forty	20-18	fourteen
one thousand and two hundred	one thousand three hundred and forty	one thousand two hundred and ninety	two hundred and forty	one thousand and nine hundred	six hundred and ninety	20-18	fourteen
one thousand and three hundred	one thousand four hundred and forty	one thousand three hundred and ninety	two hundred and forty	two thousand and twenty	seven hundred and sixty	20-18	sixteen
one thousand and four hundred	one thousand five hundred and forty	one thousand four hundred and ninety	two hundred and sixty	two thousand one hundred and twenty	eight hundred and ten	24-18	sixteen
one thousand and five hundred	one thousand six hundred and forty	one thousand five hundred and ninety	two hundred and sixty	two thousand two hundred and twenty	eight hundred and sixty	24-18	sixteen
one thousand and six hundred	one thousand seven hundred and forty	one thousand six hundred and ninety	two hundred and eighty	two thousand three hundred and ninety	nine hundred and eighty	24-18	sixteen
one thousand and seven hundred	one thousand eight hundred and forty	one thousand seven hundred and ninety	two hundred and eighty	two thousand five hundred and ninety	one thousand and thirty	28-22	sixteen
one thousand and eight hundred	one thousand nine hundred and forty	one thousand eight hundred and ninety	three hundred	two thousand seven hundred and nine	one thousand and ninety-six	28-22	sixteen
one thousand and nine hundred	two thousand and forty	one thousand nine hundred and ninety	three hundred	two thousand eight hundred and twenty-six	one thousand one hundred and forty-six	32-22	sixteen
two thousand	two thousand one hundred and fifty	two thousand and ninety	three hundred and twenty	two thousand nine hundred and twenty-six	one thousand one hundred and ninety-six	32-26	sixteen
two thousand and two hundred	two thousand three hundred and sixty	two thousand and three hundred	three hundred and forty	three thousand one hundred and twenty-six	one thousand two hundred and ninety-six	36-26	sixteen
two thousand and four hundred	two thousand five hundred and sixty	two thousand and five hundred	three hundred and sixty	three thousand three hundred and twenty-six	one thousand three hundred and ninety-six	36-26	eighteen
two thousand and six hundred	two thousand seven hundred and sixty	two thousand and seven hundred	three hundred and eighty	three thousand five hundred and twenty-six	one thousand four hundred and ninety-six	40-26	eighteen
two thousand and eight hundred	two thousand nine hundred and sixty	two thousand and nine hundred	four hundred	three thousand seven hundred and twenty-six	one thousand five hundred and ninety-six	40-26	eighteen
three thousand	three thousand one hundred and ninety	three thousand one hundred and ten	four hundred	four thousand and ninety-eight	one thousand six hundred and ninety-eight	44-30	eighteen
three thousand and two hundred	three thousand three hundred and ninety	three thousand three hundred and ten	four hundred and forty	four thousand three hundred and thirty-eight	one thousand seven hundred and ninety-eight	44-30	twenty
three thousand and four hundred	three thousand five hundred and ninety	three thousand five hundred and ten	four hundred and forty	four thousand five hundred and seventy-eight	one thousand eight hundred and ninety-eight	48-30	twenty
three thousand and six hundred	three thousand seven hundred and ninety	three thousand seven hundred and ten	four hundred and eighty	four thousand seven hundred and eighty	one thousand nine hundred and ninety-eight	48-30	twenty
three thousand and eight hundred	four thousand	three thousand nine hundred and ten	four hundred and eighty	five thousand	two thousand and ninety-eight	52-30	twenty-two
four thousand	four thousand two hundred and ten	four thousand one hundred and twenty	five hundred and twenty	five thousand and two hundred	two thousand two hundred and ten	52-30	twenty-two

TD641W/D641W Pneumatic Ventilation Butterfly Valve