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02
March
Large Size Trunnion Ball Valve API 6D

In the field of industrial pipeline systems, especially in the petroleum, natural gas, and large-scale water treatment industries, large size trunnion ball valves that comply with API 6D standards have become the core equipment for fluid control and isolation. API 6D, formulated by the American Petroleum Institute (API), is a globally recognized authoritative standard for pipeline valves, defining strict requirements for the design, manufacturing, assembly, testing, and documentation of valves. For large-diameter pipeline projects, the stability, pressure-bearing capacity, and sealing performance of valves directly affect the safety and efficiency of the entire system.

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03
February
2025 J-VALVES Annual Gala – On The Road, Heading for The World

On the evening of January 31st, bathed in bright and warm lights, the 2025 J-VALVES Annual Gala with the theme On the Road, Heading for the World kicked off in grand style! All members of the J-VALVES family gathered together, shedding the toil and weariness of the whole year, and carrying our gains and honors. We looked back on our journey side by side amid laughter and joy, and marched toward a brand-new future with united striving, sharing this exclusive reunion feast and pledge of progress that belongs to us all.
 

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26
January
Efficient Application of Trunnion Ball Valves in Industrial Fluid Control

In modern industrial production, fluid control is a key link to ensure the smooth progress of the production process. As an efficient and reliable fluid control device, the ear trunnion ball valve is widely used in multiple fields such as petroleum, chemical engineering, natural gas and water treatm

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11
December
When Should The DBB Valve Seat Design Be Selected for Trunnion Ball Valve?

In the application of Trunnion ball valve, the DBB (Double Block and Bleed) seat design is a common choice. Its unique structure gives it significant advantages under specific working conditions. The following are the appropriate times to choose the DBB seat design and related considerations.Applica

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What You Know About Us

March 02, 2026

In the field of industrial pipeline systems, especially in the petroleum, natural gas, and large-scale water treatment industries, large size trunnion ball valves that comply with API 6D standards have become the core equipment for fluid control and isolation. API 6D, formulated by the American Petroleum Institute (API), is a globally recognized authoritative standard for pipeline valves, defining strict requirements for the design, manufacturing, assembly, testing, and documentation of valves. For large-diameter pipeline projects, the stability, pressure-bearing capacity, and sealing performance of valves directly affect the safety and efficiency of the entire system.

February 03, 2026

On the evening of January 31st, bathed in bright and warm lights, the 2025 J-VALVES Annual Gala with the theme On the Road, Heading for the World kicked off in grand style! All members of the J-VALVES family gathered together, shedding the toil and weariness of the whole year, and carrying our gains and honors. We looked back on our journey side by side amid laughter and joy, and marched toward a brand-new future with united striving, sharing this exclusive reunion feast and pledge of progress that belongs to us all.
 

January 26, 2026

In modern industrial production, fluid control is a key link to ensure the smooth progress of the production process. As an efficient and reliable fluid control device, the ear trunnion ball valve is widely used in multiple fields such as petroleum, chemical engineering, natural gas and water treatm

December 11, 2025

In the application of Trunnion ball valve, the DBB (Double Block and Bleed) seat design is a common choice. Its unique structure gives it significant advantages under specific working conditions. The following are the appropriate times to choose the DBB seat design and related considerations.Applica

November 17, 2025

In modern industrial pipeline network systems, fluid control often faces pain points such as insufficient corrosion resistance, inflexible flow direction switching, and difficulty in ensuring long-term reliability. So, can enterprises find a 4-way ball valve that combines durability, flexibility, and intelligent compatibility? The J-VALVES Aluminum Bronze 4-Way Ball Valve may be the key to solving this problem.

August 27, 2025

This valve, designed for precision and durability, adheres to a multitude of international certifications and standards that guarantee its performance and quality.

June 19, 2025

Overview of the Standards1. API 6D: Pipeline and Pipeline ValvesAPI 6D is a standard developed by the American Petroleum Institute (API) specifically for pipeline valves used in petroleum and natural gas systems. It focuses on gate, ball, check, and plug valves and is designed to address the unique

June 11, 2025

I. Core Application Scenarios of 24-inch 300LB Cast Steel Flange Gate Valves(1) Main Feedwater/Steam Systems in Thermal Power PlantsThe main feedwater and steam systems in thermal power plants have extremely high requirements for the pressure resistance, high temperature resistance, and sealing perf

June 07, 2025

In the industrial field, valves, as key components of fluid control systems, are crucial for the efficient operation of the entire production process due to their performance and flexibility. The J-VALVES CF8 pneumatic fixed ball valve has become the preferred product in numerous industrial applicat

May 24, 2025

In the procurement of industrial valves, it is crucial to ensure the quality and performance of valves. The API 598 standard provides clear guidance for the inspection and testing of valves, helping purchasers make informed decisions when choosing TRUNNION BALL VALVES, GATE VALVES and BUTTERFLY VALVES. This article will compare in detail the API 598 testing costs and acceptance procedures of these three types of valves to help you better understand and choose suitable valve products.
 

May 24, 2025

In industries such as petroleum, natural gas, and chemical engineering, the API 6D standard is an important basis for the design, manufacturing, and testing of pipeline valves. This standard covers multiple types of valves, including trunnion ball valves, gate valves, and butterfly valves, etc., and is widely used in long-distance transmission pipelines, oil and gas field development, and industrial pipeline systems. This article will conduct an in-depth analysis of the design specifications for trunnion ball valves and gate valves under the API 6D standard, compare their structural characteristics, performance requirements, and application scenarios, and also explore the applicable scenarios of butterfly valves.

May 23, 2025

In the field of industrial valves, zero leakage technology has always been the goal pursued, especially when dealing with hazardous media or working conditions with high requirements. Metal sealing of trunnion ball valves and soft sealing of gate valves are two common sealing methods, and there are

May 17, 2025

In the field of industrial valves, TRUNNION BALL VALVES have drawn much attention due to their unique design and wide range of applications. This article will conduct a detailed analysis of the comprehensive advantages of J-VALVES TRUNNION BALL VALVES in terms of DN specifications and pressure ratings by comparing design standards.
 

May 12, 2025

In industrial pipeline systems, ball valves are widely used due to their simple structure and convenient operation. However, in high-temperature and high-pressure working conditions, the choice of sealing materials directly affects the reliability and service life of the valves. This paper will mainly discuss the performance differences between PTFE and metal-to-metal hard seal materials and their applicability in 450°C steam pipelines.

May 10, 2025

In the global industrial field, DN300 PN40 trunnion mounted ball valves are widely used. API 608 and EN 12516, as important international standards, have different specification requirements for their design, manufacturing, performance and other aspects. Understanding the compatibility between these two standards is of great significance for relevant enterprises in international trade, product selection and project implementation. Now, let's conduct an in-depth analysis of the comparison of these two standards in various key elements.

Manufacturer and supplier of industrial valves, including Floating Ball Valves, Trunnion Ball Valves, Flanged Gate Valves, Welded Gate Valves, High Pressure Gate Valves, Globe Valves, Swing Check Valves, Double Disc Wafer Check Valves, Y Strainers , etc. For more information, please send us your email .

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