D341J-10The sealing of worm gear flange type fully lined rubber butterfly valve shaft is controlled by adding rubber on the rotating surface between the butterfly plate and the valve seat. The rubber sealing surface and rubber lined butterfly plate are adopted to ensure that the valve shaft does not contact with the fluid medium in the cavity. The sealing performance is tight and the service life is super long. It can be used to cut off or adjust the flow quickly. It is suitable for the field requiring reliable sealing and good regulating characteristics Together. D341j-10 worm gear flange type full rubber lined butterfly valve is used for regulating flow and intercepting medium on water supply and drainage and gas pipelines of food, medicine, chemical industry, petroleum, electric power, light textile, papermaking, etc. with temperature ≤ 85 ℃ and nominal pressure ≤ 1.6Mpa.

1. The design is novel, reasonable, unique in structure, light in weight and quick in opening and closing.
2. Small operating torque, convenient operation, labor saving and dexterous.
3. It can be installed in any position and easy to maintain.
4. The sealing element can be replaced, the sealing performance is reliable, and the two-way sealing is zero leakage.
5. The sealing material has the characteristics of aging resistance, corrosion resistance and long service life.

D341J-10Main technical parameters of worm gear flange type rubber lined butterfly valve
Nominal diameter	DN（mm）	50～2000
Nominal pressure	PN（MPa）	0.6	1.0	1.6
Test pressure	strength test	0.9	1.5	2.4
	Sealing test	0.66	1.1	1.76
	Airtight seal test	0.6	0.6	0.6
Applicable media	Air, water, sewage, steam, gas, oil, etc。
Driving form

D341J-10Material of main parts of worm gear flange type fully lined rubber butterfly valve
Part name	Material Science
valve body
蝶板	Cast iron, ductile iron, carbon steel, stainless steel, carbon steel completely covered with rubber or fluoroplastics Cast iron, ductile iron, carbon steel, stainless steel, carbon steel completely covered with rubber or fluoroplastics Carbon steel nickel phosphorus, stainless steel NR, Cr, NBR, EPDM and FKM
seal ring
Stem
filler

Design standard: GB / t2238-1989
Flange connection size: GB / t9113.1-2000; GB / t9115.1-2000; jb78
Structural length: GB / t12221-1989
Pressure test: GB / t13927-1992; JB / t9092-1999

D341J-10Selection of sealing material and applicable temperature of worm gear flange type fully lined rubber butterfly valve
Material variety	Chloroprene rubber	Butadiene rubber	Ethylene propylene rubber	teflon	silicon rubber	Fluororubber
Code name	Xoror J	XAoror JA	XBoror JB	XC、JCoror F	XDoror JD	XEoror JE
High temperature resistance to Zui	82℃	93℃	150℃	232℃	250℃	204℃
Resistance to low temperature of Zui	-40℃	-40℃	-40℃	-268℃	-70℃	-23℃
Applicable operating temperature	≤65℃	≤80℃	≤120℃	≤200℃	≤200℃	≤180℃

D341J-10Main external connection dimensions of worm gear flange type rubber lined butterfly valve(mm)
Nominal diameter DN(mm)	L	D	D1	D2	b	f	z-φd	H
50	108	160	125	99	16	3	4-φ18	112
65	112	180	145	118	18	3	4-φ18	122
80	114	195	160	132	18	3	4-φ18	129
100	127	215	180	155	20	3	8-φ18	142
125	140	245	210	184	22	3	8-φ18	157
150	140	280	240	210	22	3	8-φ23	170