概要

RVAK 停止逆止弁

GEA check valves open autonomously by the pressure which is exerted by the working medium upon the valve disc. RVAK stop check valves have a lifting stem to permanently close the valve and a cone on the underside of the valve disc to regulate the medium flow. They start to open at a differential pressure of 0.01 to 0.05 bar and are fully open between 0.1 and 0.2 bar. As soon as the flow is interrupted or the flow direction is reversed, the valve closes automatically. Additionally, RVAK stop check valves may also be closed manually with a handwheel or a ratchet attached to the lifting stem. Rotating the stem clockwise will keep the valve disc down on the valve seat and therefore keeps the valve closed, counter-clockwise rotation will enable the valve disc to be opened by the pressure of the medium. The cone on the underside of the valve disc allows the medium flow to be regulated. The maximum diameter of the cone corresponds to the valve’s nominal diameter. The built-in damping device makes this type of valve especially suitable in cases where the power requirement / flow rate fluctuates. GEA stop check valves are designed for installation in the refrigerant circulation of industrial refrigeration systems. They are installed on either the pressure or suction side of compressors or in pipes in which only one direction of flow is intended. The spindle sealing is provided by a threaded bush with spring-elastic PTFE ring.

GEA AWP RVAK Stop Check Valve

Stop Check Valve type RVAK

Downloads

GEAインサイト

Reality check for biotech

The new GEA Application and Technology Center (ATC) in Sarstedt, south of Hannover, is neither a showroom nor a substitute for a lab. It is a place for testing, data collection and early decisions. This is where it becomes clear whether a biological concept can become a robust industrial process. That step is bigger than it may seem.

食品包装の変化:4つのトレンド

熱成形は、長年にわたり食品包装において中心的役割を果たしてきました。現在、これが今は大きな転換期を迎えています。規制の強化、素材の進化、コストの上昇に伴い、フォーム・フィル・シールの生産ラインには、単に信頼性の高い稼働だけでなく、食品の鮮度維持、手頃な価格、リサイクル可能性を左右する役割が求められています。食品の包装および配送の状況を左右する、熱成形の主要なトレンドをご覧ください。

Person using a tablet to inspect stainless‑steel industrial equipment with GEA‑branded valves and piping.

GEA Cloud:産業用AI駆動型のコネクテッドマシン

GEAのデジタル対応機器をGEA Cloudと連携させることにより、AI駆動のインサイトを引き出し、稼働率を向上させて、持続可能な産業パフォーマンスを推進する仕組みをご覧ください。

GEAの最新情報をお届け

GEAからのニュース配信にサインアップして頂ければ、GEAのイノベーションやストーリーの最新情報を受け取ることができます。

連絡先

ご要望をお伺いいたします。ご要望の詳細をご入力いただければ、お問い合わせに回答いたします。