10萬次循環(huán)啟閉之后，密封性能還能否保持穩(wěn)定？

為驗(yàn)證不銹鋼雙偏心蝶閥在長(zhǎng)期反復(fù)動(dòng)作下的耐久性與性能保持能力，良固對(duì)一臺(tái) DN600不銹鋼雙偏心蝶閥開展10萬次循環(huán)啟閉測(cè)試。

測(cè)試前進(jìn)行壓力檢測(cè)，完成10萬次循環(huán)后再次檢測(cè)，以前后性能對(duì)比驗(yàn)證產(chǎn)品長(zhǎng)期運(yùn)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.

雙偏心結(jié)構(gòu)，減少密封副持續(xù)磨損

雙偏心結(jié)構(gòu)使閥板在開啟初期較快脫離閥座，并在關(guān)閉末段建立密封接觸，減少啟閉過程中的持續(xù)摩擦與磨損，有助于降低啟閉扭矩，提升密封系統(tǒng)的長(zhǎng)期穩(wěn)定性。

結(jié)合不銹鋼材料的耐腐蝕性能，良固不銹鋼雙偏心蝶閥可根據(jù)具體材質(zhì)、閥座及壓力等級(jí)，適配化工及石化工藝管線、工業(yè)氣體、循環(huán)水及工業(yè)水、蒸汽及熱媒、真空系統(tǒng)等工況。

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，把關(guān)鍵質(zhì)量掌握在自己手里

良固建立了從產(chǎn)品設(shè)計(jì)、毛坯鑄造、精密加工、組裝到檢測(cè)的完整制造體系。

對(duì)于雙偏心蝶閥，閥體加工精度、偏心位置、密封副配合、裝配一致性及執(zhí)行機(jī)構(gòu)匹配，都會(huì)直接影響啟閉扭矩、密封性能與長(zhǎng)期運(yùn)行穩(wěn)定性。

從源頭材料到最終性能檢測(cè)，關(guān)鍵制造環(huán)節(jié)自主掌控，以先進(jìn)設(shè)備保障加工精度，以成熟工藝穩(wěn)定制造質(zhì)量，以完整檢測(cè)驗(yàn)證最終性能。

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.

數(shù)字化管理，讓質(zhì)量可追溯、交期更可控

良固將生產(chǎn)、加工、質(zhì)量檢測(cè)及交付節(jié)點(diǎn)納入數(shù)字化管理體系，持續(xù)掌握訂單進(jìn)度與關(guān)鍵質(zhì)量數(shù)據(jù)。

讓生產(chǎn)進(jìn)度有據(jù)可查，項(xiàng)目交期更可控；

關(guān)鍵數(shù)據(jù)全程留存，產(chǎn)品質(zhì)量可追溯。

尤其面對(duì)批量、大口徑及節(jié)點(diǎn)明確的工程訂單，穩(wěn)定的生產(chǎn)組織能力，直接關(guān)系到項(xiàng)目整體交付效率。

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.

豐富項(xiàng)目經(jīng)驗(yàn)，提升工況適配與交付能力

從國內(nèi)工程到海外項(xiàng)目，不同介質(zhì)、溫度、壓力、執(zhí)行標(biāo)準(zhǔn)及檢測(cè)要求，對(duì)閥門提出不同挑戰(zhàn)。

長(zhǎng)期項(xiàng)目實(shí)踐，讓良固持續(xù)積累不同工況下的產(chǎn)品選型、配置、制造與交付經(jīng)驗(yàn)。

從前期技術(shù)溝通、產(chǎn)品配置，到生產(chǎn)制造、檢測(cè)、資料配套及最終交付，形成覆蓋項(xiàng)目全過程的服務(wù)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.

10萬次循環(huán)啟閉。

測(cè)試前后，兩次壓力檢測(cè)。

這組驗(yàn)證背后，是良固對(duì)產(chǎn)品結(jié)構(gòu)、制造精度、質(zhì)量控制與長(zhǎng)期性能的系統(tǒng)檢驗(yàn)。

而一臺(tái)可靠閥門的背后，同樣需要一套完整能力支撐：

從產(chǎn)品制造，到性能驗(yàn)證，再到項(xiàng)目交付，

良固閥門集團(tuán)，讓可靠成為可以驗(yàn)證、可以追溯、可以交付的結(jié)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.