In high-risk industrial sectors like petrochemicals, energy & metallurgy, pharmaceuticals, and refrigeration, overpressure hazards in pressure vessels and pipelines are like hidden bombs. As the core barrier for system safety, the reliability of safety valves directly determines equipment lifespan and personnel protection. With years of expertise in the valve industry, OUWEI manufactures safety valve series that comply with national and industrial standards, becoming the trusted safety choice for thousands of enterprises.
OUWEI safety valves cover full-scenario models including spring-loaded full-lift (A48Y/A42Y), pilot-operated (AX46Y), and sulfide-resistant (KA42Y) types. The nominal pressure ranges from 1.6MPa to 32MPa, and the nominal diameter (DN) spans DN15 to DN300, suitable for diverse working conditions involving water, steam, oil products, and corrosive media. All products strictly adhere to core standards such as TSG ZF001-2006 Safety Technical Supervision Regulation for Safety Valves and GB/T 12243-2021 Safety Valves—Capacity Test Methods. Valve bodies are made of premium materials like 316L stainless steel and forged steel, with sealing surfaces overlay-welded with hard alloy, achieving sealing performance exceeding national standards and a leakage rate significantly lower than the industry average.
In terms of core performance, OUWEI safety valves feature precisely calibrated set pressure, ensuring millisecond-level popping when the system is overpressurized. The discharge area fully meets the specification requirement of “outlet ≥ inlet”, with a stable rated discharge coefficient of ≥0.7 for efficient pressure relief without retention. The blowdown pressure is accurately controlled, and the opening-closing differential pressure complies with industrial standards, preventing frequent popping and fluttering to ensure stable pressure recovery of the system. For special scenarios, the bellows-sealed structure isolates corrosive media from eroding the spring, while the insulation jacket design adapts to high-temperature working conditions, comprehensively covering complex industrial needs.
Regarding installation and compliance, OUWEI safety valves support multiple connection methods such as flange, threaded, and welded connections, strictly matching the structural length of GB/T 12221 and international flange standards like ANSI and JIS. The vertical installation design fully meets specification requirements and can be directly connected to existing systems. Each product undergoes a 1.5× nominal pressure shell strength test and a 1.1× nominal pressure sealing test before leaving the factory, accompanied by complete compliance inspection reports, meeting the requirements of special equipment supervision and safety audits.
From storage tanks and reactors to high-pressure pipelines, OUWEI focuses on “precise pressure relief, reliable sealing, and long-term durability”, safeguarding every safety line in industrial production with professional valve technology. Choosing OUWEI safety valves means choosing safety protection that complies with national standards, eliminating overpressure hazards invisibly and ensuring stable production for enterprises.
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