400H 系列平行閘閥采用金屬接觸式獨特結構，動作可靠，具有極高的切斷性能，廣泛應用于高溫、 高壓到極低溫條件下的緊急切斷閥、放空閥或作為大 口徑調節(jié)閥使用，具有多年實績。

此外，金屬接觸式結構本身具有防火功能。

The Parallel Slide 400H valve provides maximum shutoff  performance through its metal-to-metal, wedge type sealing mechanism. Its excellency as an emergency shutdown/relief valve, or a control valve of a large diameter, has been proven in a variety of on-off applications, as it seals off all pressures from low to high. Fluids of extremely low temperature can be controlled, too.

Its all metal construction automatically assures fire-safe function as well.