QJ641M Pneumatic Handwheel High Temperature Ball ValveDetailed product description：

Model	Nominal pressure (MPa)	Strength test pressure (MPa)	Sealing test pressure (MPa)	Operating temperature (℃)	Applicable Medium
QJ641M/F-16C	one point six	two point four	one point eight	-28～+300 (M/F)	Thermal oil, water, steam, gas, oil, nitric acid corrosive media, acetic acid corrosive media
QJ641M/F-16C	two point five	three point eight	two point eight	-28～+350 (PPN)

QJ641M Pneumatic Handwheel High Temperature Ball Valve Main Component Materials:

Serial number	parts name	Material
one	valve body	Ductile iron, carbon steel, cast stainless steel
two	Seal ring	(M/F) High strength wear-resistant carbon stone ink ≤ 300 ℃ (PPN) for polystyrene, temperature ≤ 350 ℃
three	ball	stainless steel
four	filler	Polytetrafluoroethylene
five	gland	QT450-10 ductile iron
six	valve stem	Carbon steel, chromium stainless steel
seven	Gamepad	carbon steel

QJ641M Pneumatic Handwheel High Temperature Ball Valve Main Technical Parameters:

Model Specification Size L D D 1 D 2 z-φd H b QJ641M/F-16 fifteen one hundred and thirty ninety-five sixty-five forty-five 4-14 eighty-five fourteen twenty one hundred and fifty one hundred and five seventy-five fifty-five 4-14 ninety-five sixteen twenty-five one hundred and sixty one hundred and fifteen eighty-five sixty-five 4-14 one hundred and three sixteen thirty-two one hundred and eighty one hundred and thirty-five one hundred seventy-eight 4-18 one hundred and five eighteen forty two hundred one hundred and forty-five one hundred and ten eighty-five 4-18 one hundred and twenty eighteen fifty two hundred and thirty one hundred and sixty one hundred and twenty-five one hundred 4-18 one hundred and ninety-five twenty sixty-five two hundred and ninety one hundred and eighty one hundred and forty-five one hundred and twenty 4-18 one hundred and ninety-five twenty eighty three hundred and ten one hundred and ninety-five one hundred and sixty one hundred and thirty-five 8-18 two hundred and fifteen twenty-two one hundred three hundred and fifty two hundred and fifteen one hundred and eighty one hundred and fifty-five 8-18 two hundred and fifty-three twenty-four

The ball and sealing ring in the QJ641M ball valve adopt special processing technology and the latest sealing materials to meet the standard requirements for surface roughness and roundness of the ball, thereby improving the sealing performance, service life, and high temperature resistance. The clockwise movement of the handle drives the valve stem to rotate the ball, allowing the medium to pass smoothly.