22941

4-Port Sampling and Switching Valve

1/16 in. fitting, maximum temperature 300 °C

• UNSPSCコード: 41112500
• eCl@ss: 32060101

特性

• 物質: (Nitronic 60)
• 特徴: number of ports 4
• メーカー／製品名: C4T; VICI Valco^®
• 最高温度: 300 °C
• フィッティング: 1/16 in. fitting

詳細

詳細

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.

カラムを隔離して、上流のカラムから出た化合物が不可逆的に吸着するのを防ぎます。図では、CO₂がカラム1内の空気から分離され、弁が位置Bにあればカラム2を迂回します。CO₂が検出されると、弁が位置Aに戻り、O₂、N₂、CH₄、およびCOがカラム2から検出器に溶出します。

アプリケーション

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.

法的情報

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