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4-Port Sampling and Switching Valve

4 通采样和切换阀

货号
22914
规格纯度
fitting size 1/8 in., maximum temperature 300 °C
参考价格
21249.7 *本价格含增值税费
促销
服务
  • 原厂保证
  • 包邮
  • 增值税票
数量
-+
产品名称:
4-Port Sampling and Switching Valve
4 通采样和切换阀
产品介绍:

产品说明

一般描述

Sampling valve basically supports the discrete volumes of the treated samples stream to periodically inject into the carrier gas stream of the chromatograph. Sampling valves are fitted with electric or pneumatic actuators which help them to be operated automatically. Switching valve are critical if binary pumps are used. It allows employment of different desired mobile phases. Switching valve consists of five parts: control unit, connecting device, valve body, a rotor and preloaded assembly.
Isolate a column to prevent a compound, emerging from an upstream column, from being irreversibly adsorbed. In the figure, CO2 is separated from air in Column 1, and bypasses Column 2 when the valve is switched to position B. After the CO2 is detected, the valve is switched back to position A and O2, N2, CH4, and CO elute from Column 2 to the detector.

应用

Sampling valve may be used to connect the LC and GC instruments to allow fast and dependable introduction of large sample volumes onto a capillary GC column.

法律信息

Valco is a registered trademark of Valco Instruments Co. Inc.

产品性质

特点number of ports 4
manufacturer/tradenameVICI Valco®
最高温度 300 ℃
配件尺寸 1/8  in.

Sigma-Aldrich

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