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The BFQL Large-Particle Pump addresses common clogging and wear issues in high-impurity dewatering. Featuring a wide straight-through flow channel and specialized wafer check valve, it handles solids up to 38 mm without pre-screening, eliminating manual filtration. An anti-settling base reduces sludge build-up for continuous operation with minimal downtime. Versatile for municipal, infrastructure, and water conservancy applications, this heavy-duty pump ensures reliable discharge, cutting maintenance costs and safeguarding project schedules.

The GODO PUMPS QBY3-50PTFF diaphragm pump is designed for demanding chemical and pharmaceutical intermediate applications involving corrosive media and high temperatures. Featuring a stainless steel body, Teflon diaphragms, and PTFE ball valves, it ensures excellent chemical resistance, fluid purity, and leak-proof operation. Driven by compressed air, it offers intrinsic safety for explosive environments, with automatic protection against dry-running and overload. The fully sealed fluid path isolates media from moving parts, ensuring safe handling of volatile substances. With optional accessories and minimal wear parts, the pump enables easy maintenance, reduced downtime, and lower long-term costs.

This paper presents a practical on-site troubleshooting procedure for pneumatic diaphragm pump stoppage and suction failure. The maintenance approach follows a systematic hierarchy: air supply validation, exhaust vent inspection, and fluid line examination, with mandatory pressure release and pump flushing before disassembly when handling corrosive media. Three primary failure categories are addressed: (1) vacuum seal integrity in the suction piping, where even minor leaks in joints, gaskets, or concealed bends can negate negative pressure; (2) air source quality and pressure stability, requiring routine moisture drainage and filter cleaning; (3) excessive flow resistance due to clogged strainers, deformed hoses, excessive bends, or over-lift operation. If external factors are ruled out, internal wear of diaphragms, valve balls, and seats should be considered, indicated by weak pulsation or material backflow. Regular maintenance of these items and adherence to rated parameters are emphasized to ensure reliable pump performance.

The new GODO PUMPS electric diaphragm pump BFD4 has undergone a comprehensive performance upgrade. A single pump unit is now capable of supporting an entire production line with continuous material feeding. The fourth-generation electric pump is designed for prolonged dead-head operation, and its widened flow channel effectively prevents clogging, ensuring stable and reliable production line performance. With significantly improved conveying capacity, the pump is ideally suited for high-volume continuous production, accelerating material transfer and boosting overall workshop throughput. Featuring an integrated motor-direct-drive structure, the pump eliminates the need for auxiliary pneumatic equipment such as air compressors and air receiver tanks, reducing power consumption caused by air leaks and idling losses, and enabling long-term control over production energy costs.

The transportation of corrosive media—such as acids, alkalis, salt solutions, and chemical feedstocks—poses significant challenges in the chemical, electroplating, and pharmaceutical industries. Conventional pumps often suffer from corrosion, leakage, and mechanical failure when exposed to such media, leading to production interruptions and safety hazards. This paper addresses the question: Can diaphragm pumps effectively handle corrosive media? The conclusion is that high-quality diaphragm pumps are fully capable of doing so, provided that appropriate material selection and structural design are implemented. Many standard diaphragm pumps fail due to inadequate corrosion resistance in critical components such as the pump body and diaphragm. In response, GODO PUMPS has developed specialized diaphragm pumps with enhanced corrosion resistance through targeted material optimization and design improvements. Key measures include the use of PTFE for highly corrosive media (e.g., strong acids and alkalis), as well as nitrile rubber and fluororubber for moderately corrosive applications, balancing performance and cost-effectiveness. Additionally, the seal-less, no-moving-parts-in-contact design eliminates the risk of shaft seal leakage, while optimized flow paths reduce media retention and extend pump service life. Practical applications confirm the reliability of GODO PUMPS diaphragm pumps: they safely transfer sulfuric acid and sodium hydroxide in chemical plants, handle electroplating waste liquids and acid/alkaline cleaners with high corrosion resistance, and transport corrosive pharmaceutical liquids while maintaining hygiene standards and preventing contamination.

A sudden drop in the flow rate of a diaphragm pump during industrial conveying can significantly reduce operational effic++iency and delay production schedules. This paper discusses the common causes of reduced flow in diaphragm pumps and provides systematic troubleshooting methods. The main causes include suction line blockage or air leakage, insufficient power supply (whether pneumatic or electric), diaphragm wear or aging, as well as mismatched medium characteristics and pump component failures (such as clogged or worn check valves). To resolve these issues, a simple step-by-step inspection procedure is recommended: first check the suction line for obstructions and proper sealing, then verify the power or air supply, and finally inspect the diaphragm and internal pump components. Regular maintenance, including cleaning the suction line, checking seals, and timely replacement of worn diaphragms with original parts, is essential to ensure stable flow and extend pump service life. Proper filtration of media with excessive impurities is also advised.

Handling sludge water, which contains high levels of sediment and debris, often causes clogging and wear in ordinary pumps. This paper confirms that diaphragm pumps are an effective solution for such conditions. Unlike conventional pumps with rotating impellers, diaphragm pumps feature a seal-less design with no rotating parts, operating through a reciprocating diaphragm. This structure prevents clogging and wear. Key advantages include strong self-priming capability (up to 7 meters), excellent durability due to wear-resistant materials, flexible flow and pressure adjustment, and safe operation without electricity, making them suitable for challenging environments such as construction sites and wastewater treatment plants.

Diaphragm pumps are widely used in industrial fluid transfer due to their high efficiency and convenience. However, the noise generated during operation remains a major concern, as excessive noise not only degrades the working environment but may also indicate equipment abnormalities and reduce service life. To effectively reduce diaphragm pump operating noise, it is essential to first identify the noise sources, which primarily include pump body vibration, component wear, and cavitation. For vibration-induced noise, installing vibration-damping pads and using flexible hose connections can significantly reduce vibration transmission. For noise caused by component wear and aging, regular maintenance—including timely replacement of wear-prone parts such as diaphragms, bearings, and seals, as well as routine lubrication—can effectively lower noise and improve operational stability. Cavitation-related sharp noise, often resulting from blocked suction lines or excessive suction lift, can be eliminated by ensuring a clear suction line, avoiding air entrainment, properly adjusting installation height, and maintaining a sufficient supply of clean medium. By implementing these targeted noise reduction techniques, diaphragm pump noise can be substantially reduced, enhancing both the operating environment and equipment longevity.

New Electric Diaphragm Pump with Pressure Relief Controller Available

The BFQW-80P is a new-generation high-flow sanitary pump engineered for superior efficiency and hygiene in critical fluid handling applications. Its defining innovation is an integrated 360° rotatable bracket, which enables flexible adjustment of the pump's angle for direct and thorough cleaning of all surfaces, significantly reducing cleaning time and operational complexity. This feature, combined with the pump's inherently smooth, crevice-free internal design, streamlines sterilization processes and minimizes contamination risks.

Diaphragm pumps, particularly Air-Operated Double Diaphragm (AODD) pumps, are the preferred choice for transferring high-viscosity oils like lubricants, gear oils, and recycled oils. Their air-driven mechanism provides strong suction and discharge independent of viscosity, allowing them to handle thick fluids with soft solids. Key advantages include excellent self-priming, safe dry-running, gentle handling that preserves oil properties, and easy flow control. Material selection (e.g., cast iron or stainless steel bodies, PTFE diaphragms) is crucial for compatibility. With simple maintenance and reliable continuous operation, these pumps offer an efficient and safe solution for demanding industrial applications.

GODO PUMPS successfully convened its 2026 Annual Conference in Xitang, Jiashan, on December 27, 2025. Centered on the ambitious theme "A Century-Long GODO, A Journey to Ten Billion," the gathering served as a pivotal forum for strategic alignment and mobilization. The conference facilitated a collective reflection on the company's developmental journey, the formulation of strategic blueprints for the forthcoming year, and a unified commitment to core performance objectives.