LOWFLOW控制阀和调节器通常用于OEM，实验室或中试工厂。诸如此类的安装经常需要更改阀内件，以满足给定应用的变化流量要求。
LOWFLOW主营产品有调节阀，控制阀和减压阀等。
LOWFLOW控制阀708SP系列技术参数
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Sizes:
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1/4", 1/2", 3/4" (DN8, DN15, DN20)
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End Connections
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• Threaded – NPT, BSPT, BSPP
• Socket weld
• Integral tube ends
• Welded flanges (ANSI, DIN, JIS)
• Others upon request (contact factory)
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Actuator
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• 1/4" (DN8) – standard: 14M (14 in 2 ) multi-spring
• 1/2" (DN15) – standard: 14M
• 3/4" (DN20) – standard: 14M; optional 35M (35 in 2 )
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Diaphragm Material
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• 14M – rolling (Nylon/Nitrile)
• Optional 35M Actuator: Buna-N fabric reinforced
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Body/Bonnet Materials
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• Carbon Steel
• Stainless Steel
• Hastelloy C
• Hastelloy B
• Alloy 20
• Monel
• Titanium
• Other materials upon request
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Trim Materials
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• Cv's 0.05 (0,04 Kv) and above: 17-4 plug, 316SS stem/seat
• Cv's below 0.05 (0,04 Kv): Nitronic 60 stem/plug & seat
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Optional Trim Materials
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• 316SS Stem, 17-4 plug, 416SS seat
• 316SS Stem, Stellite plug and Stellite seat (hard seat only)
• 316SS Stem/plug & seat
• 316SS Stem plug, PEEK seat
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Actuator Materials
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• Aluminum – 14M
• Steel – 35M
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Stem Packing
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• Standard: spring-loaded TFE/Chevron (to 450°F/232°C)
• Optional: braided or Graphite/Grafoil (with positioners on 14M)
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Body/Bonnet Gasket:
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RPTFE or Grafoil (matches packing mate-rial unless specified)
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Service:
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steam, air, gas, oil, water, chemicals
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Shutoff
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• Standard – Cv's 0.05 and greater: ANSI Class IV; Cv's 0.02 and lower: ANSI Class VI
• Optional – Cv's 0.05 and greater: ANSI Class VI (with PEEK seats)
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Ranges:
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3-15 or 6-30 psi (0,21-1,0 or 0,4-2,1 bar) split ranges are available with optional positioner
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Action
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• Direct (air signal closes valve)
• Reverse (air signal opens valve)
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Flow Characteristic:
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linear (all Cv's), equal percentage (Cv >/= 0.05/0,43 Kv only); or quick opening (Cv >/= 0.05/0,43 Kv only)
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LOWFLOW控制阀708系列介绍
Mark 708的开发是为了提供部分流量服务最准确的控制：无论是工厂安装，试验台，研发设施还是用于定量，注射和排放应用等专门工艺。Cv的范围从0.00001到4.0，可提供1/4“至3/4”线径（0,000009至3,4 Kv，尺寸DN8至DN20），Mark 708提供了提供增强性能以确保精度的设计功能控制最关键的微流量应用。
The Mark 708 was developed to provide the most accurate control available for fractional flow services: whether for pilot plant installations, test stands, R & D facilities or for specialized processes such as dosing, injection and venting applications. With Cv’s ranging from 0.00001 to 4.0 available in 1/4″ through 3/4″ line sizes (0,000009 to 3,4 Kv in sizes DN8 through DN20), the Mark 708 offers design features that will provide enhanced performance to insure precision control on your most critical micro-flow applications.
LOWFLOW控制阀708系列其他常见型号：
LOWFLOW 708 3001561A
LOWFLOW 708 3007079A
LOWFLOW 708 3001920A
LOWFLOW 708 3006892A
LOWFLOW 708 3005261B
LOWFLOW 708 10593650
LOWFLOW 708 3009974A
LOWFLOW 708 3002171A
LOWFLOW 708 3007966B
LOWFLOW 708 1059938A
LOWFLOW 708 3001408C