Guide: Recently, four key valve technical standards formulated and revised under the leadership of Lanzhou High Pressure Valve Co., Ltd. have been approved and released by the Ministry of Industry and Information Technology, which will inject strong impetus into the localization process of core industrial equipment such as hydrogenation and refining.

Recently, the valve industry has received significant good news – four key valve technical standards formulated and revised under the leadership of Lanzhou High Pressure Valve Co., Ltd. have been officially approved and released by the Ministry of Industry and Information Technology of the People’s Republic of China! This is not only an authoritative certification of Langao Valve’s technical strength but also a significant leap in China’s independent innovation capability in the field of high-end valves, injecting strong momentum into the localization process of core industrial equipment such as hydrogenation and refining.

Four Standards, Targeting Pain Points in High-end Applications:

1. Benchmark for High-pressure Hydrogen Service and Corrosion Resistance: Revision of JB/T 11484-2025 Technical Specification for Valves for High-pressure Hydrogenation Units.

• Mission: Standardize key valves (gate valves, globe valves, check valves) for high-pressure hydrofining, hydrocracking and other units.
• Key indicators: Wide coverage (DN15-DN600 / NPS1/2-NPS24), high pressure class (PN100-PN400 / Class600-Class2500), and applicable to harsh media (hydrogen, oil and gas, oil products containing H₂ and H₂S).
• Core value: Provide authoritative manufacturing guidelines for valves resistant to high pressure, hydrogen service, and hydrogen sulfide stress corrosion cracking (SSCC), serving as the safety cornerstone for the clean energy transition.

1. Guardian of High-temperature Severe Working Conditions: Formulation of JB/T 15215-2025 Valves for High-temperature Wear-resistant Slurry Pumps in Refining and Chemical Industry.

• Mission: Specifically designed for high-temperature slurry pump systems transporting catalyst-containing particles in refining and chemical units.
• Key indicators: Maximum temperature resistance up to 538℃, nominal diameter DN100-DN600 (NPS4-NPS24), and pressure range PN25-PN100 (Class300-Class600).
• Core value: Solve the industry problems of short service life and low reliability of valves under high-temperature and high-wear working conditions, ensuring long-term safe operation of units.

1. Precision Tools in Ultra-high Pressure Fields: Revision of JB/T 1308.1-2025 and JB/T 1308.2-2025 PN2500 Ultra-high Pressure Valves and Fittings.

• Mission: Define the specifications and technical requirements for ultra-high pressure (PN2500) forged valves (globe valves, throttle valves, check valves).
• Key indicators: Small caliber (DN3-DN25), ultra-high pressure (PN2500), and temperature range -29℃ – 280℃ (for non-corrosive media).
• Core value: Fill the gap in refinement and standardization of ultra-high pressure valves, providing reliable “control points” for cutting-edge fields such as chemical industry and materials.

Standard Setter = Technical Leader

The simultaneous release of these four national standards clearly sends a key signal: Langao Valve’s technical voice has been recognized by the state, and its R&D and application capabilities in valve fields such as high-pressure hydrogenation, high-temperature wear resistance, and ultra-high pressure are at the industry’s commanding heights.

Deep Accumulation and Continuous Leadership: It is particularly worth mentioning that JB/T 11484-2025 is a revised and upgraded version of JB/T 11484-2013, with Langao Valve as the first drafter. As early as 2013, Langao Valve took the lead as the first author in formulating the world’s first professional high-pressure hydrogenation valve standard (JB/T11484-2013) in the valve industry, creating a precedent. After 11 years of successful implementation of this standard, we once again take on the important task of leading the revision as the first author. The core highlight and top priority of this revision is to strengthen the requirements for the “hydrogen corrosion resistance” of valves in extreme high-pressure hydrogen service environments, significantly improving the scientificity and rigor of the standard. It will surely provide safer and more reliable technical guarantees for China’s modern energy and chemical equipment.

“National Heavyweight Equipment” Localization Takes Another Step Forward: The release of the standards will effectively promote the standardization and quality improvement of domestic high-end valves in design, materials, manufacturing, and testing, accelerating import substitution. Escort downstream industries: Refining, chemical, and energy enterprises will directly benefit from more reliable and compliant high-performance valves, providing a solid guarantee for the stable, long-term, full-load, and optimal operation of units.

Based on Standards, Leading the Future

Lanzhou High Pressure Valve Co., Ltd. has always regarded technological innovation and standard construction as its lifeline. The release of these four important standards is a milestone for Langao Valve in deepening segmented fields and overcoming “bottleneck” technologies, and also an active response to the national strategy of localization of high-end equipment manufacturing. In the future, Langao Valve will continue to be guided by standards and driven by innovation, providing safer, more reliable, and smarter valve solutions for global industrial customers, and demonstrating the strong strength of Chinese valves in the journey of building a strong energy and manufacturing country!

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