Pneumatic coal dust unloading gray ball valve

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Pneumatic coal dust unloading gray ball valve

Product Model: FQ647M
Nominal diameter: DN50 ~ 200mm
Nominal pressure: PN1.6 ~ 4.0MPa
Temperature: -28 ℃ ~ 300 ℃
Medium: lime, coal powder, soot, nitric acid, acetic acid
Main material: WCB, ZG1Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti

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產(chǎn)品詳細

【Introduction】
FQ647M Pneumatic Pulverized Coal Dumping Ball Valve is an ideal equipment for controlling solid conveying such as pulverized coal and pulverized coal injection. It is widely used in blast furnace pulverized coal injection in metallurgy, ore dressing, electric power and other production processes. , Milling system and dust removal system in a variety of pipeline control.

Working principle
FQ647M pneumatic pulverized coal dusting ball valve with upper and lower stem fixed spool (shaft support) and movable seal seat design. Work more stable. With automatic compensation, two-way seal between the seat without backlash has a lot of shear and self-cleaning function. Especially for the Royal fiber and a small solid particles of suspension and viscous medium on-off. Adopting the straight-through structure, the flow passage is smooth, the phenomenon of fouling and clogging does not occur. The sealing pair is made of an alloy material. After special heat treatment, the valve is resistant to abrasion and abrasion while the valve eccentric spherical surface has the function of automatic compensation. So that the sealing pair in the case of a certain degree of wear and tear, still can achieve the effect of resealing. (Dusty gas, granular fluid).

【Features】
1, seat with automatic wear compensation device, more reliable to ensure the sealing performance of the ball valve.
2, the seal made of special materials, with high temperature, wear-resistant, long service life characteristics.
3, various forms of sealing Vice, according to different conditions can choose soft seal structure, hard seal structure, fire valve seat structure design.
4, according to the need to set grease-assisted seal structure, the valve seat and the stem part of the installation of grease injection valve, the emergency case can be temporarily sealed.
5, can be designed into anti-static structure, the ball and the stem, stem and valve body set between the conductive spring to avoid electrostatic ignition lit flammable substances, to ensure system safety.
6, the stem with the overall forging and modulation, hardness HB220 ~ 250, the stem with anti-blowing out the structural design, according to the need to lengthen the stem for buried places.

【Product Other Parameters】

Performance Specifications:

Nominal diameter DN (mm)		50 ~ 200
Nominal pressure PN (MPa)		1.6		2.5		4.0
Nominal pressure (MPa)	Strength test	2.4		3.75		6.4
	Seal test	1.8		2.75		4.4
Material material code		C	P		R
The main parts	Body	WCB	ZG1Cr18Ni9Ti		ZG1Cr18Ni12Mo2Ti
	Ball board	2Cr13	1Cr18Ni9Ti		1Cr18Ni12Mo2Ti
	Valve stem	2Cr13	1Cr18Ni9Ti		1Cr18Ni12Mo2Ti
	Sealing ring	Enhanced polytetrafluoroethylene para-benzene
	filler	Teflon, flexible graphite
Applicable conditions	Suitable media	Lime, coal powder, coal ash	Nitric acids		Acetic acid
	proper temperature	-28 ° C to 300 ° C
Actuator	model	GT or AW series
	Air pressure	0.3-0.7MPa
Implementation standards		Design and manufacture	Structure length	Flange size	Pressure temperature		Test and test
		GBT / 12237	GB12221	GB9113	GB9131		GB13927

Installation Size Chart:

Nominal diameter DN (mm)	Size (mm)															Actuator Model (for reference only)
	1.6MPa					2.5MPa					4.0MPa					Actuator Model (for reference only)
	L	D	D1	B	Z-ΦD	L	D	D1	B	Z-ΦD	L	D	D1	B	Z-ΦD	1.6, 2.5MPa	4.0MPa
50	203	160	125	16	4-18	216	160	125	20	4-18	216	160	125	20	4-18	GTD-80	GTD-100
65	222	180	146	18	4-18	241	180	145	twenty two	8-18	241	180	145	twenty two	8-18	GTD-100	GTD-100
80	241	195	160	20	8-18	283	195	160	twenty two	8-18	283	195	160	twenty two	8-18	GTD-100	GTD-115
100	305	215	180	20	8-18	305	230	190	twenty four	8-23	305	230	190	twenty four	8-23	GTD-115	GTD-125
125	356	245	210	twenty two	8-18	381	270	220	28	8-25	381	270	220	28	8-25	GTD-160	AW13
150	394	280	240	twenty four	8-23	403	300	250	30	8-25	403	300	250	30	8-25	GTD-90	AW13
200	457	335	295	26	12-23	502	360	310	34	12-25	502	375	320	38	12-30	AW17	AW17
250	533	405	355	30	12-25	586	425	370	36	12-30						AW17	AW20
300	610	460	410	30	12-25	648	485	430	40	16-30						AW20	AW20
350	686	520	470	34	16-25	762	550	490	44	16-34						AW20	AW28
400	762	580	525	36	16-30	838	610	550	48	16-34						AW28	AW28
450	864	640	585	40	20-30	914	660	600	50	20-34						AW28	AW35
500	914	705	650	44	20-34	991	730	660	52	20-41						AW28	AW35