QB41 jacketed flange insulated ball valveDetailed product description：

QB41 jacketed flange insulated ball valve has good insulation and cooling characteristics, and the valve diameter and diameter are consistent. The medium flows in a straight line with low resistance, making it most suitable for liquid media that are easy to solidify and have high viscosity. At the same time, it can effectively reduce the heat loss of the medium in the pipeline. The integral jacket design can provide more uniform insulation and cooling. The outer side of the jacket and valve body is welded to the jacket connecting pipe, allowing a maximum pressure of 1MPa for steam or cold water.

QB41 jacketed flange insulated ball valve is mainly used in various systems such as petroleum, chemical, pharmaceutical, and food to transport high viscosity media that solidify at room temperature.

Technical parameters and execution standards:

Nominal Diameter		DN15～200、NPS 3/4～8
Nominal pressure (Mpa)		PN1.6~2.5、Class150~300、10K、20K
Valve materials and applicable working conditions	Part Name	Materials
	3. Valve body	WCB	CF8(304)	CF8M(316)
	2. Valve seat	1Cr18Ni9Ti	1Cr18Ni9Ti	0Cr18Ni12Mo2Ti
	4. Sealing ring	Polytetrafluoroethylene, para polystyrene
	5. Sphere	2Cr13	1Cr18Ni9Ti	0Cr18Ni12Mo2Ti
	6. Valve stem	2Cr13	1Cr18Ni9Ti	0Cr18Ni12Mo2Ti
	1. Jacket	twenty-five	twenty-five	twenty-five
	7. Filler	Polytetrafluoroethylene, flexible graphite
	Applicable Medium	Water, steam, oil products	Corrosive media such as nitric acid	Corrosive media such as acetic acid
	Operating temperature	-29-180 ℃ (polytetrafluoroethylene), -20-300 ℃ (para polystyrene)
design and manufacturing		GB/T 12237-1989、API 608、API 6D、JPI 7S-48、BS5351
structural length		GB/T 12221-1989、ANSI B16.10； JIS B2002
flange connection		JB/T74~90(JB74~90)、GB9112~9131、HGJ44-76、SH3406； ANSI B16.5； JIS B2212~2214
pressure test		JB/T 9092-1999、API 598
Transmission method		Manual, worm gear transmission, pneumatic, electric.

Main appearance and connection dimensions table:

Nominal Diameter		d	L	D		E	Q	H	W	pipe thread
(mm)	(in)			(mm)	(in)					P
twenty	3/4"	nineteen	one hundred and seventeen	forty	1.5"	fifty-eight point five	one hundred and forty-seven	one hundred and one	one hundred and seventy	G3/4"
twenty-five	1"	twenty-five	one hundred and twenty-seven	fifty	2"	sixty-two point five	one hundred and fifty-six	one hundred and six	one hundred and seventy	G3/4"
forty	1 1/2"	thirty-eight	one hundred and sixty-five	sixty-five	2.5"	sixty-three point five	one hundred and eighty-one	one hundred and twenty-five	two hundred and fifty	G3/4"
fifty	2"	fifty-one	one hundred and seventy-eight	eighty	3"	sixty-eight	two hundred and eighteen	one hundred and thirty-five	two hundred and fifty	G3/4"
eighty	3"	seventy-six	two hundred and twenty-nine	one hundred and fifty	6"	eighty-two	two hundred and seventy-five	one hundred and ninety-three	three hundred and fifty	G3/4"
one hundred	4"	one hundred and two	two hundred and fifty-four	two hundred	8"	eighty-three	three hundred	two hundred and sixty-five	four hundred and twenty	G3/4"
one hundred and fifty	6"	one hundred and fifty-two	two hundred and ninety-two	two hundred and fifty	10"	ninety-five	four hundred and three	three hundred and fifty-five	eight hundred	G3/4"
two hundred	8"	two hundred and three	three hundred and thirty	three hundred	12"	one hundred	four hundred and ninety-two	four hundred and ten	eight hundred	G3/4"

QB41 jacketed flange insulated ball valve