計量閥

Parker 計量與采樣系列閥門的設計主旨，在于為分析、儀表以及（在低流量氣體應用中）使用精確控制的各種研究應用中提供精確且穩(wěn)定的流率。 

可選項包括一體化安裝于流量計與直通閥組件的閥腔，帶有直線或角度樣式的閥體。

派克的NL系列計量閥是高流量的精密閥門。

CV值為0.207的直線式計量閥，通徑尺寸為0.13英寸，而角型閥的CV值為0.299。

計量閥在各種儀表應用中提供精確穩(wěn)定的流量控制。 

物品信息

派克的NL系列計量閥是高流量的精密閥門。

CV值為0.207的直線式計量閥，通徑尺寸為0.13英寸，而角型閥的CV值為0.299。

計量閥在各種儀表應用中提供正確穩(wěn)定的流量控制。

這些計量閥的設計是使閥桿螺紋與工藝介質(zhì)不接觸。

這種功能增加了閥門的閥桿壽命周期，大幅減低因閥門與各種介質(zhì)（溶劑等）接觸后，閥門“卡住”而無法使用的情況。

 各種終端連接尺寸和密封材料提供了不少多功能應用。這些緊湊型計量閥在不同密封溫度范圍內(nèi)可工作到1000 psi（69bar）。  

此外，這些閥可有角型結(jié)構(gòu)和直線式閥體模式，以協(xié)助安裝在復雜的合適的管路系統(tǒng)上。安裝人員應注意，這些計量閥不可以用作切斷閥。 

如果系統(tǒng)有關(guān)閉要求，派克V系列針閥可以與這些計量閥一起使用。

 市場：

化學工業(yè)

研究機構(gòu)和工業(yè)發(fā)展

大學科研機構(gòu)

石化

 特點/優(yōu)勢：

精密錐形閥桿可正確控制流量

黃銅或 316不銹鋼鍛造本體結(jié)構(gòu)

面板或在線安裝可選

前擋塊處理免于過緊操作

角型結(jié)構(gòu)和直線式閥體模式

閥桿螺紋與工藝流體不接觸

完整功能測試

可選閥桿密封和手柄

 應用:

測試面板

監(jiān)測系統(tǒng)

混合攪拌設備

NL系列計量閥

METERING VALVE,1000 PSI- NL SERIES

Parker's NL Series Metering Valves provide accurate and stable control of flow rates in various applications up to 1,000 PSI (138 BAR). These higher flow metering valves have a Cv of .207 for Inline and .299 for Angle body pattern.

Parker’s NL Series of metering valves are precision valves with a high flow rate. The orifice size is 0.13” with a Cv of 0.207 for inline and Cv of 0.299 for the angle pattern valve. They provide accurate and stable control of flow rates in various instrumentation applications. These metering valves are designed to have the vale stem threads not in contact with the process media. This unique feature increases the valve’s stem life cycle and prevents the valve from “seizing up” with various media(solvents, etc.).

A wide variety of end connection sizes, and seal materials provide considerable application versatility. These compact, metering valves work up to 1,000 PSI (69 BAR) at all seal temperature ranges. 

In addition, these valves are available in angle and inline body patterns to assist installation in complex tubing systems. The installer should note that these metering valves are not intended for use as a shut-off valve. A Parker V Series needle valve can be utilized in conjunction with these metering valves if the system has a shut off requirement.

Markets:

? Chemical

? Research and Development

? Universities

? Petrochemical

Features/ Benefits:

? Precision tapered valve stem accurately controls flow

? Brass or 316 SS forged body construction

? Panel or in-line mounting

? Positive handle stop prevents overtightening

? Angle or in-line patterns

? Valve stem threads not in contact with process fluid

? 100% function tested

? Optional stem seals and handles

Applications:

? Test Panels

? Monitoring Systems

? Mixing Equipment

性能特點

連接 1 尺寸 1/8" to 3/8"

連接 2 尺寸 1/8" to 3/8"

連接 1 樣式 Two Ferrule Compression, Single Ferrule Compression

連接 2 樣式 Two Ferrule Compression, Single Ferrule Compression

主體形狀 Inline, Angle

主體材料 316 Stainless Steel, Brass-Nickel Plated

最大工作壓力 (PSI) 1,000

最大工作壓力 (BAR) 69

最高工作溫度 (F) 250

最低工作溫度 (C) -10

把手 Vernier, Knurled