日期：2026-08-25 浏览次数：2
10万次循环启闭之后，密封性能还能否保持稳定？
为验证不锈钢双偏心蝶阀在长期反复动作下的耐久性与性能保持能力，良固对一台 DN600不锈钢双偏心蝶阀开展10万次循环启闭测试。
测试前进行压力检测，完成10万次循环后再次检测，以前后性能对比验证产品长期运行的可靠性。
To verify the durability and performance stability of its stainless steel double-offset butterfly valves under repeated operation, LIANGGU conducted a 100,000-cycle open-close test on a DN600 valve.
A pressure test was performed before cycling began, followed by another pressure test after all 100,000 cycles were completed. By comparing the results before and after the cycling test, LIANGGU evaluates the valve’s ability to maintain reliable performance over long-term operation.
双偏心结构，减少密封副持续磨损
双偏心结构使阀板在开启初期较快脱离阀座，并在关闭末段建立密封接触，减少启闭过程中的持续摩擦与磨损，有助于降低启闭扭矩，提升密封系统的长期稳定性。
结合不锈钢材料的耐腐蚀性能，良固不锈钢双偏心蝶阀可根据具体材质、阀座及压力等级，适配化工及石化工艺管线、工业气体、循环水及工业水、蒸汽及热媒、真空系统等工况。
The double-offset design allows the disc to move away from the seat more quickly during opening, reducing friction and wear on the sealing surfaces during repeated cycling. This provides an important structural advantage for long service life and stable sealing performance.
Combined with the corrosion resistance of stainless steel, LIANGGU double-offset butterfly valves can be configured with different material grades, seat designs and pressure ratings for a wide range of applications, including chemical and petrochemical process lines, industrial gas systems, circulating and industrial water, steam and heat-transfer media, as well as vacuum service.
全流程制造，把关键质量掌握在自己手里
良固建立了从产品设计、毛坯铸造、精密加工、组装到检测的完整制造体系。
对于双偏心蝶阀，阀体加工精度、偏心位置、密封副配合、装配一致性及执行机构匹配，都会直接影响启闭扭矩、密封性能与长期运行稳定性。
从源头材料到最终性能检测，关键制造环节自主掌控，以先进设备保障加工精度，以成熟工艺稳定制造质量，以完整检测验证最终性能。
LIANGGU has established an integrated manufacturing system covering product design, casting, precision machining, assembly and testing.
For a double-offset butterfly valve, factors such as body machining accuracy, eccentric positioning, sealing-pair alignment, assembly consistency and actuator matching can directly affect operating torque, sealing performance and long-term reliability.
Production, machining, quality inspection and delivery milestones are also integrated into LIANGGU’s digital management system, enabling continuous visibility into order progress and critical quality data.
数字化管理，让质量可追溯、交期更可控
良固将生产、加工、质量检测及交付节点纳入数字化管理体系，持续掌握订单进度与关键质量数据。
让生产进度有据可查，项目交期更可控；
关键数据全程留存，产品质量可追溯。
尤其面对批量、大口径及节点明确的工程订单，稳定的生产组织能力，直接关系到项目整体交付效率。
This makes production progress traceable, delivery schedules more manageable, and key quality data available throughout the manufacturing process.
For project orders involving large quantities, large valve sizes or strict delivery milestones, well-organized production is more than an internal manufacturing capability — it directly affects the efficiency and reliability of overall project delivery.
丰富项目经验，提升工况适配与交付能力
从国内工程到海外项目，不同介质、温度、压力、执行标准及检测要求，对阀门提出不同挑战。
长期项目实践，让良固持续积累不同工况下的产品选型、配置、制造与交付经验。
从前期技术沟通、产品配置，到生产制造、检测、资料配套及最终交付，形成覆盖项目全过程的服务能力。
From domestic installations to international projects, valves must perform under different media, temperatures, pressures, technical standards and inspection requirements.
Years of project experience have enabled LIANGGU to build expertise in valve selection, configuration, manufacturing and delivery across a wide range of operating conditions, supporting customers throughout the project lifecycle.
10万次循环启闭。
测试前后，两次压力检测。
这组验证背后，是良固对产品结构、制造精度、质量控制与长期性能的系统检验。
而一台可靠阀门的背后，同样需要一套完整能力支撑：
从产品制造，到性能验证，再到项目交付，
良固阀门集团，让可靠成为可以验证、可以追溯、可以交付的结果。
100,000 operating cycles.
Two pressure tests — before and after cycling.
Behind these numbers is a systematic verification of valve design, manufacturing accuracy, quality control and long-term performance.
Because a reliable valve is never the result of a single process.
From manufacturing and performance validation to project delivery, every stage matters.
LIANGGU Valve Group — making reliability measurable, traceable and deliverable.