J-VALVES Small Bore Metal Sealed Gate Valve Standards

I. Overview of J-VALVES Small Bore Metal Sealed Gate Valves

J-VALVES SMALL BORE METAL SEALED GATE VALVES are a type of valve product specifically designed for high-demand working conditions. Their core feature is the adoption of a metal-to-metal sealing method, which enables them to maintain excellent sealing performance in high-temperature, high-pressure, and corrosive medium environments. These valves are commonly used in industries such as petroleum, natural gas, chemical engineering, and electric power to control the on-off and flow regulation of fluids.

II. Technical Parameters

1. Nominal Diameter and Pressure Range
The nominal diameter range of J-VALVES SMALL BORE METAL SEALED GATE VALVES is usually from DN15 to DN100, which can meet the connection requirements of different pipeline systems. Their nominal pressure range is wide, from PN16 to PN420, applicable to various high-pressure working conditions.

2. Temperature Range
The applicable temperature range of this valve is relatively wide, with a maximum of 370 °C, capable of meeting the temperature requirements of various media.

3. Sealing Performance
The sealing performance of J-VALVES SMALL BORE METAL SEALED GATE VALVES complies with the requirements of grade D in the international standard ISO 5208, ensuring an extremely low leakage rate even under high pressure and high temperature conditions.

III. Material Selection

1. Valve Body Materials
The valve body usually adopts high-strength carbon steel, alloy steel or stainless steel materials. These materials have good mechanical properties and corrosion resistance and can withstand high pressure and harsh environments.

2. Sealing Surface Materials
The sealing surface uses hard alloy or special alloy materials, which have undergone precision machining and surface hardening treatment to improve their wear resistance and corrosion resistance.

IV. Testing and Certification

1. Pressure Testing
Each J-VALVES SMALL BORE METAL SEALED GATE VALVE must undergo strict pressure tests before leaving the factory, including shell strength tests and sealing tests. The shell strength test pressure is 1.5 times the nominal pressure to ensure that the valve has no leakage under working pressure.

2. International Certification
This valve has also passed multiple international certifications, such as ISO 4126-1, ASME Boiler and Pressure Vessel Code, etc., ensuring that it meets the highest global safety standards.

V. Comparison of Application Scenarios
To display the advantages of J-VALVES SMALL BORE METAL SEALED GATE VALVES more intuitively, we compare them with other common types of gate valves, as shown in the following table:

It can be seen from the above table that J-VALVES SMALL BORE METAL SEALED GATE VALVES are superior to other types of gate valves in terms of sealing performance, pressure resistance capacity, and applicable temperature range, and are especially suitable for high-demand industrial applications.

VI. Summary

J-VALVES SMALL BORE METAL SEALED GATE VALVES, with their excellent sealing performance, wide range of applications, and reliable operating characteristics, have become an ideal choice in industrial fluid control systems. Through strict control of technical parameters, selection of high-quality materials, and international certifications, these valves can meet the needs of various complex working conditions. For enterprises that pursue high efficiency, safety, and reliability, J-VALVES SMALL BORE METAL SEALED GATE VALVES are undoubtedly a trustworthy choice.