Q21F External thread ball valveDetailed product description：

ball valve External thread ball valve

Model	caliber	Stress	Material
Q21F	6～50mm	1.6-4.0MPa	Cast steel, stainless steel

Q21F External Thread Ball Valve Product Features:

Nominal pressure	Applicable stability range	Applicable Medium
1.6-4.0MPa	-20～232℃～350℃	Water, oil, gas, and certain corrosive liquids (W. O. G)

Main connection dimensions and weight of Q21F external thread ball valve: Unit: mm (PN1.6MPa)

Nominal meridian (mm)	Dimensions (mm)
	d	L	L1	M	L0	Total length of Q61 with butt welding head
six	eight	eighty-five	fifteen	20×1.5	one hundred and ten	one hundred and sixty-six
ten	ten	eighty-five	sixteen	24×1.5	one hundred and ten	one hundred and sixty-six
fifteen	ten	eighty-five	eighteen	30×2	one hundred and ten	one hundred and seventy-two
twenty	thirteen	ninety	eighteen	36×2	one hundred and ten	one hundred and eighty-seven
twenty-five	seventeen	one hundred	twenty	42×2	one hundred and ten	two hundred and twenty-seven
thirty-two	twenty-two	one hundred and twenty	twenty	52×2		two hundred and thirty-five
forty	twenty-five	one hundred and thirty-five	twenty-five	60×3	one hundred and fifty	two hundred and fifty-five
fifty	thirty-two	one hundred and forty	twenty-five	72×3	one hundred and eighty	two hundred and ninety-one

Q21F external thread ball valve main component materials:

Model	valve body	Sphere, valve stem	Gamepad	Seal ring	Gaskets and fillers
Q21F-16C、Q21F-25C Q21F-40C、Q21F-64C	A105、45	1Cr18/1Cr18Ni9Ti	Stainless steel SS304	Polytetrafluoroethylene (PTFE) Para polystyrene PPL	Polytetrafluoroethylene (PTFE) Para polystyrene PPL
Q21F-16P、Q21F-25P Q21F-40P、Q21F-64P	1Cr18Ni9Ti	SS304/1Cr18Ni9Ti
Q21F-16R、Q21F-25R Q21F-40R、Q21F-64R	SS316/1Cr18Ni12Mo2Ti	SS316/1Cr18Ni12Mo2Ti