Boxi always adheres to the business philosophy of "gaining reputation through quality, winning customers with advanced technology," striving to build a modern enterprise with a more pragmatic spirit, superior products, and comprehensive services.

Main products: Free float steam traps, thermodynamic steam traps, inverted bucket steam traps, adjustable bimetal steam traps, lever float steam traps, high-temperature and high-pressure steam traps, and bypass valve steam traps.

Boxi Valve products include American Standard, German Standard, and National Standard: steam traps, globe valves, stainless steel globe valves, ball valves, stainless steel ball valves, plunger valves, plug valves, gate valves, butterfly valves, needle valves, pressure reducing valves, electric valve devices, welding threads, etc.

Brand: Boxi Valve Specifications: 50-350mm Application range: Water system Pressure: 1.6 MPA

Temperature: Room temperature Connection method: Flange Applicable medium: Water Material: Stainless steel

Model: H42H Standard: National Standard Structural form: Vertical Form: Vertical

Product Overview:

The stainless steel vertical check valve is a valve where the disc slides along the centerline of the valve body. The pipeline vertical check valve is a newly developed type of valve, featuring simple structure, few components, lightweight, and good manufacturability, making it one of the development directions for check valves. However, its fluid resistance coefficient is slightly higher than that of swing check valves. Vertical check valves are widely used in petroleum, chemical, pharmaceutical, power, and other industries where backflow prevention is required. The H42H model can be equipped with or without a spring depending on vertical or horizontal installation conditions.

1. Vertical check valves come in flanged and wafer types, featuring simple structure, few components, and lightweight. They are primarily used in applications requiring prevention of medium backflow.

2. For vertical installation, the vertical check valve may not require a spring, as it relies on the disc's own weight and the pressure of the reverse flow to function as a check valve.

Stainless Steel Vertical Check Valve H42H Working Principle:

The H42H series vertical check valve prevents medium backflow, serving as a check valve. It remains open when the inlet pressure exceeds the outlet pressure. Under the inlet medium pressure, the disc is pushed open, allowing the valve to open automatically. When the inlet pressure is lower than the outlet pressure, the spring pushes the disc against the seat to close the valve (Note: Horizontal installation requires a spring, while vertical pipeline installation does not. The disc closes automatically under its own weight and the pressure of the reverse flow medium).

Stainless Steel Vertical Check Valve Execution Standards:

Stainless Steel Vertical Check Valve Performance and Application Range: