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Overpressure protection

Safety & relief valves suppliers in China

Use documented company product ranges to build a shortlist, then confirm the exact configuration.

Prepare the buying brief

A qualified engineer must establish the relief basis. Request the applicable design code, certified capacity documentation and suitability for the actual relief conditions.

Compare: Protected equipment; relief scenario; set pressure; backpressure; capacity basis.

Review standards and documentation →

Documented supplier scope

8 company records currently include this family. Catalogue scope is not a stock or certification claim.

Neway Valve (Suzhou) Co., Ltd.

Suzhou, Jiangsu

Neway describes a manufacturing business with ball, gate, globe, check, butterfly, control and safety valve ranges. Its catalogue separates several ball and butterfly configurations.

Manufacturer — company-stated

Zhejiang Lianggao Valve Co., Ltd.

Wenzhou, Zhejiang

Lianggao highlights knife gate and metallurgical valves. Its website also lists gate, globe, ball, butterfly, check, plug and safety valve ranges; listing breadth does not establish in-house production for every family.

Manufacturer — company-stated

BVF / Shanghai Yufa Fluid Technology — Xianghe factory

Langfang, Hebei

The company publishes BVF gas-service valves and fittings, including ball, needle, check and safety valves, regulators and manifolds. It also describes external-brand instrument supply.

Manufacturer / Trading & sourcing / Parts & supporting materials — public-source stated

Tangshan Minsangao Valve Sales Co., Ltd.

Tangshan, Hebei

Its supplier shop offers general and special-purpose valves for chemical, gas and metallurgical applications, with pneumatic and electric actuators also listed.

Sales & sourcing / Parts & materials — published company description

Tangshan Liangzheng Valve — 唐山良正阀门有限公司

Tangshan, Hebei

Its company shop sells gate, butterfly, ball, check and globe valves, with hydraulic control, safety, pressure-reducing and regulating valves, strainers and metallurgical valve products.

Sales & sourcing — published business description

Shuanggong Valve — 双工阀门股份有限公司

Taiyuan, Shanxi

Its company shop offers gate, ball, globe, butterfly, check, safety and plug valves, plus steam traps, power-station valves, valve-system design, pumps, flanges and pipe fittings.

Manufacturing / Sales & sourcing / Parts, materials & related services — published business description

Taiyuan Huashengda Valve — 太原华盛达阀门有限公司

Taiyuan, Shanxi

Its company introduction offers industrial and imported valves, including ball, needle, globe, gate, check, butterfly, diaphragm, safety, plug and control valves, with pipeline support services.

Manufacturing / Sales & sourcing / Parts, materials & related services — published business description

Shanxi Zhongbo Electromechanical — 山西众博机电有限公司

Changzhi, Shanxi

Its company shop offers mining hydraulic valves and pump parts, including hydraulic-support control, check, safety, shut-off and ball valves, together with hoses, fittings and seals.

Manufacturing / Sales & sourcing / Parts, materials & related services — published business description

Shanxi Henghui Hydraulic Technology — 山西恒汇液压高科有限公司

Yangquan, Shanxi

Its website offers hydraulic directional and check valves, safety valves, hydraulic locks, shut-off valves, spray-control valves, filters and filtration stations for mining hydraulic systems. The website also uses the earlier Yangquan Henghui Hydraulic Equipment name.

Manufacturing / Parts, materials & related services — published business description

Shanxi Haolifa Machinery Manufacturing — 山西好利阀机械制造有限公司

Linfen, Shanxi

Its website offers industrial valves, gas pressure-regulating equipment and valve design/manufacturing services. Its catalogue covers butterfly, check, ball, gate, globe, control, diaphragm, plug and safety valves, plus actuators and pipeline accessories.

Manufacturing / Parts, materials & related services — published business description

Dalian Xiangrui Valve Manufacturing — 大连祥瑞阀门制造有限公司

Dalian, Liaoning

Its website offers gate, globe, check, butterfly and ball valves, steam traps, stainless-steel pipe fittings and quick couplings. Product navigation additionally presents safety and pressure-reducing valves, valve groups and instrument valves, with marine and industrial applications.

Manufacturing / Parts, materials & related services — published business description

Harbin Electric Harbin Power Station Valve — 哈电集团哈尔滨电站阀门有限公司

Harbin, Heilongjiang

Its official company introduction lists full-lift and molten-salt safety valves, gate valves, globe valves, check valves, hydrostatic-test isolation valves and control valves among its manufactured products. The company designs and manufactures valves for power and related industrial applications. Its official product pages also present ball valves and triple-offset butterfly valves.

Manufacturing — published business description

Shanghai Valve Factory — 上海阀门厂股份有限公司

Shanghai Municipality, Shanghai

Its official company introduction describes valve design and manufacturing for nuclear, power, fossil-energy, clean-energy and marine applications. Its nuclear product pages include safety valves and feedwater check valves.

Manufacturing — published business description

Xuzhou Renhao Mechanical Components — 徐州仁浩机械配件加工有限公司

Xuzhou, Jiangsu

Its official website describes manufacturing of fluid-system valves and fittings, including ball, needle, check, safety and bleed valves, manifolds, compression/threaded/welded fittings, quick couplings and hose/tube accessories.

Manufacturing / Parts, materials & related services — published business description

Jiangsu WVALVE Electromechanical Technology — 江苏威阀机电科技有限公司

Changzhou, Jiangsu

Its official website describes valve development, production and sales. Listed products include ball, gate, globe, check, butterfly, control, safety and knife-gate valves, along with pumps, flanges, control accessories and pipe fittings.

Manufacturing / Parts, materials & related services — published business description

Zhejiang Hanghui Valve — 浙江杭惠阀门有限公司

Huzhou, Zhejiang

The official website identifies Zhejiang Hanghui Valve as its Deqing manufacturing base, separately from the Hangzhou Huahui headquarters. Its published range includes high-pressure valves, control and regulating valves, pressure-reducing and safety valves, desuperheaters and steam pressure/temperature reduction equipment.

Manufacturing — published business description

Shandong Livil Hydraulic Technology — 山东力威液压技术有限公司

Jinan, Shandong

Its official introduction describes design, manufacture, assembly and testing of customised hydraulic valve-block systems, alongside sales of imported products. Its catalogue lists cartridge valves, counterbalance valves, hydraulic locks, shuttle valves, pilot-operated check valves, pressure-reducing and relief valves, with on-site technical support.

Manufacturing / Sales & sourcing / Parts, materials & related services — published business description

Qingdao Zhencheng Valve — 青岛真城阀门有限公司

Qingdao, Shandong

Its official website describes manufacture, OEM services and trade in marine and industrial valves and mechanical parts. Product navigation includes steam traps, pressure-reducing valves, safety valves, globe valves, control valves, sight-check valves, ball valves and filters.

Manufacturing / Sales & sourcing / Parts, materials & related services — published business description

Shandong Pilot Fluid Control Technology — 山东派洛特流体控制科技有限公司

Zibo, Shandong

Its official site describes manufacture of valves for chlorine and other demanding chemical media. Published products include fluoropolymer-lined bellows control and globe valves, V-port and O-port ball valves, diaphragm and butterfly valves, chlorine-service safety valves and emergency shut-off devices.

Manufacturing — published business description

Weifang Yuming Valve — 潍坊宇明阀业有限公司

Weifang, Shandong

Its official website describes a local valve sales and service business. Listed ranges include gate, globe, ball, check and butterfly valves, safety valves, strainers, steam traps, regulating valves, power-station valves and valves for water and metallurgical applications.

Sales & sourcing — published business description

Jiaozuo Jiaoleng Ammonia Valve — 焦作市焦冷氨阀有限公司

Jiaozuo, Henan

Its official introduction describes valve research, development and manufacture for refrigeration and demanding industrial applications. Published ranges include ammonia-service globe valves, safety valves, emergency shut-off valves, regulating valves and valves for urea, hydrogen and molten-salt service.

Manufacturing — published business description

Hubei Jinjian Valve — 湖北金箭阀门有限公司

Jingzhou, Hubei

Its published company introduction describes valve design, manufacture, sales and after-sales service. Named ranges include gate, ball, butterfly, globe, check, regulating, knife-gate, safety, plug, diaphragm and needle valves.

Manufacturing — published business description

Hunan Junkai Metallurgical Technology — 湖南浚开冶金技术有限公司

Changsha, Hunan

Provides metallurgical-equipment and engineering services, with a published valve catalogue covering plug, diaphragm, needle-type throttling, safety, ball, butterfly, gate, globe, check and regulating valves.

Sales & sourcing / Parts, materials & related services — published business description

Guangzhou Dongshan South Seals — 广州市东山南方密封件有限公司

Guangzhou, Guangdong

Manufactures static and dynamic seals for valves, pipelines and industrial equipment. Its published shop also lists valves, flanges, elbows, fasteners, spiral-wound and graphite gaskets, PTFE gaskets and packing products.

Manufacturing / Sales & sourcing / Parts, materials & related services — published business description

Guangdong Yongquan Valve Technology — 广东永泉阀门科技有限公司

Foshan, Guangdong

Manufactures water-system and fire-protection valves. Its catalogue includes gate, butterfly and check valves, pump-control and pressure-reducing valves, backflow preventers, strainers and pressure-relief valves.

Manufacturing / Parts, materials & related services — published business description

Foshan Shihe Gas Equipment — 佛山市释赫燃气设备有限公司

Foshan, Guangdong

Develops, produces and installs gas-distribution equipment and control systems, and distributes gas equipment. Its catalogue lists regulators, safety, globe, check and ball valves, emergency shut-off valves, hoses, fittings and repair spares.

Manufacturing / Sales & sourcing / Parts, materials & related services — published business description

Dongguan DELCO Fluid Equipment — 东莞市得科流体设备有限公司

Dongguan, Guangdong

Develops and manufactures industrial valves and electric-pneumatic actuators, with import-export activities. Its catalogue includes ball, butterfly, gate, globe, knife-gate, regulating, check and safety valves, plus actuator accessories and customised fluid-control assemblies.

Manufacturing / Sales & sourcing / Parts, materials & related services — published business description

Zhongshan Langli Electric — 中山朗立电气有限公司

Zhongshan, Guangdong

Its published distributor profile offers industrial electrical and automation products, pneumatic and solenoid valves, safety valves, instruments, filters and control components.

Sales & sourcing / Parts, materials & related services — published business description

Guangxi Maosifu Hydraulic Equipment — 广西茂斯福液压设备有限公司

Nanning, Guangxi

Its company shop offers gate, globe, butterfly, ball, diaphragm, plug, check, safety and regulating valves, pressure-reducing valves, steam traps, quick couplings, plastic piping systems and chemical pumps, with fluid-system integration services.

Sales & sourcing / Parts, materials & related services — published business description

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