译文：
产品型号：QM647AF 阀门类型：固定球阀、喷煤粉球阀、卸灰球阀口径范围：DN50～DN500 压力范围：PN2.5～PN16
主体材质：铸钢、不锈钢驱动方式：气动适用介质：含尘气体、煤粉等 适用温度：-28℃～300℃
一、喷煤粉卸灰球阀的用途 球阀常用于石油、天然气、煤炭和矿石的开采、提炼加工和管道输送系统中截断或接通介质。喷煤粉专用球阀、卸灰阀特别适用于高炉煤粉喷吹、含尘含固体粉末管道系统、空气管路及喷枪管路等工况。二、喷煤粉专用球阀的特点
1.喷煤粉专用球阀的阀座带有磨损自动补偿装置，更可靠的确保球阀的密封性能；
2.喷煤粉卸灰专用球阀的密封圈采用特殊材料制成，具有耐高温、耐磨损、使用寿命长的特点；
3.阀杆采用整体锻造并调制处理，硬度达到HB220～250，阀杆采用防吹出结构设计，根据需要可加长阀杆用于埋地场所；
4.根据客户需要，卸灰球阀可设计成防静电结构，在球体与阀杆、阀杆与阀体之间设置导电弹簧，避免静电打火点燃易燃物质，确保系统安全。
5.密封副形式多样，根据不同工况可选用软密封结构、硬密封结构、防火阀座结构等结构设计；
6.根据需要可设置注脂辅助密封结构，在阀座和阀杆部位加装注脂阀，紧急情况下可暂时密封；
7.喷煤粉卸灰球阀还具有阀门结构紧凑、启闭灵活、安装维修方便等特点。三、喷煤粉卸灰球阀的主要外形尺寸公称压力 PN 公称尺寸 DN
尺寸（mm） L D H 手动 气动 手动 气动 PN16 25 180 140 235 90 298 32 200 155 235
107 304 40 220 250 330 127 370 50 220 250 330 140 367 65 241 350
400 164 425 80 283 350 510 177 484 100 305 420 510 206 531 125 356
700 580 292 570 150 394 1000 720 320 570 200 457 - 720 - 610 250
533 - 900 - 670 300 610 - 1050 - 740 350 686 - 1290 - 790 400 762 -
1600 - 905
“ Pneumatic spray pulverized coal ash discharge valve dedicated ”是由提供的国际阀门新闻，译文仅供参考。另外，中国球阀网还提供相关产品搜索：、、、、等。
原文：
Product Type: QM647AF Valve Type: Fixed ball valve, ball valve
spray pulverized coal, ash unloading valve Diameter range: DN50 ~
DN500 Pressure Range: PN2.5 ~ PN16 Main material: cast steel,
stainless steel Drive Mode: Pneumatic Applicable medium: dust gas,
coal, etc. Suitable temperature: -28 ℃ ~ 300 ℃ First, spray the
use of pulverized coal dust unloading
valve Valve commonly used in the oil, natural gas, coal and ore
extraction, refining, processing and pipeline transportation
system, truncated or connected media. Special ball valve spray of
pulverized coal, ash discharge valve particularly suitable for
blast furnace pulverized coal injection, dust with powder pipe
system, air piping and other piping and spray conditions. Second,
spray characteristics of pulverized coal-specific valve 1. Spraying
coal with a special valve in the valve seat wear and tear automatic
compensation device, and more reliable to ensure the valve sealing
performance; 2. Spray of pulverized coal ash disposal special valve in the ring with a
special material, high temperature, wear-resistant and long service
life characteristics; 3. Stem modulation using integrated forging
and processing, the hardness to HB220 ~ 250, stem with anti-blow
structural design, as required for the underground stem can be
lengthened place; 4. According to customer needs, dumping ash valve
can be designed as anti-static structure, in the sphere with the
valve stem, stem and the body is placed between the conductive
spring, to avoid static electricity sparking ignite flammable
substances, to ensure system security. 5. Sealing in various forms,
according to different conditions can choose the soft sealing
structure, hard seal structure, fire dampers seat structure,
structure design; 6. Greasing may be needed, set the seal support
structure, parts installed in the seat, and stem injection grease
valve, emergency situations may be temporarily seal; 7. Spray
pulverized coal ash discharge valve ball valve also has a compact
structure, open and close flexible, easy installation and maintenance
and so on. 3, spray pulverized coal ash discharge valve of the main
dimensions PN PN Nominal size DN size (mm) L D H Manual pneumatic
manual pneumatic PN16 25 180 140 235 90 298 32200155235107 304
40220250330127 370 50220250330140 367 65241350400164 425
80283350510177 484 100 305 420,510,206,531 125 356 700,580,292,570
1,503,941,000,720,320,570 200 457 - 720 - 610 250 533 - 900 - 670
300 610 - 1050 - 740 350 686 - 1290 - 790 400 762 - 1600 - 905
原文来源：
