EO® 是 Parker Ermeto GmbH 的注册商标 ### Metric Tube Fittings – Elbows & TeesErmeto Original or EO® progressive ring fittings, for metric tube, are manufactured from mild steel, with zinc plated and passivated finish. They are available in light duty and heavy duty series to cover a wide range of pressure ratings. Each fitting comes with a tube nut but the bite ring will need to be ordered separately. The progressive ring bite produces a keyed leak-free tube connection. The range of fittings is intended purely for the assembly of connections for fluid applications. All fittings are supplied with an instruction leaflet. For steel fittings it is recommended that seamless drawn steel tubes to DIN 2391/C are used. Operating temperature range without pressure reductions for the steel fitting materials is -40°C to +120°C.警告 * 液压系统可以在高压力下工作。 要确保 EO® 管道配件的实用安全，只有 EO® 部分应用于他们的装配，并且不应超过压力和额定温度。