Galvanized, Grooved & Steel Pipe Fittings Manufacturer

HuLu has specialised in the foundry sector for over 30 years since 1995. Commencing with in-house mould development, we have established an integrated ‘R&D - Production - Sales’ system, specialising in cast iron pipe fittings and valves. We have since become a highly trusted manufacturer and supplier within the industry. Currently, the company employs approximately 1,000 skilled personnel and maintains a dedicated 200-strong pre-sales and after-sales team, ensuring comprehensive service quality throughout the entire process.



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Corrosion Resistance Considerations When Selecting Pipe Fittings for Outdoor and Chemical Environments

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 Corrosion is one of the most common causes of pipe system failure in industrial, outdoor, and chemical processing environments. Selecting the wrong pipe fitting material can lead to leaks, contamination, reduced service life, safety hazards, and expensive maintenance costs. For this reason, corrosion resistance is a critical factor when choosing fittings for demanding operating conditions. Whether used in chemical plants, marine facilities, water treatment systems, or outdoor infrastructure, pipe fittings must withstand moisture, chemicals, temperature changes, and environmental exposure over long periods of time. As a professional Pipe Fittings Manufacturer China , HuLu provides high-quality pipe fittings designed to deliver reliable corrosion resistance for global industrial and infrastructure applications. Why Corrosion Resistance Matters in Pipe Systems Pipe fittings are constantly exposed to harsh conditions such as: Humidity Rain and weather exposure Saltwater environments C...
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How to Match Pipe Fitting Standards to Project Requirements: ASME, DIN, and BS Compared

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  Selecting the correct pipe fitting standard is one of the most important steps in designing safe, efficient, and compliant piping systems. Different industries and regions follow different engineering standards to ensure compatibility, reliability, and performance under specific operating conditions. Among the most widely used standards worldwide are ASME, DIN, and BS. Each standard defines dimensions, pressure ratings, materials, testing methods, and manufacturing requirements for pipe fittings. Understanding the differences between these systems helps engineers, contractors, and procurement teams choose the right fittings for their projects. As a professional Pipe Fittings Manufacturer China , HuLu provides pipe fittings manufactured according to multiple international standards to support global industrial and infrastructure projects. Why Pipe Fitting Standards Matter Pipe fitting standards help ensure: System compatibility Safe operation Reliable sealing performance Pressur...
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How Pressure Rating and Temperature Range Determine the Right Pipe Fitting for Your System

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  Selecting the correct pipe fitting is one of the most important decisions in any piping system design. Whether used in industrial processing, water treatment, oil and gas transportation, HVAC systems, or chemical applications, pipe fittings must operate safely and efficiently under specific working conditions. Among the many selection factors, pressure rating and temperature range are two of the most critical. Choosing fittings that cannot withstand the operating pressure or temperature may lead to leaks, corrosion, mechanical failure, or costly downtime. As a professional Pipe Fittings Manufacturer China , HuLu provides high-quality pipe fitting solutions designed to meet demanding industrial and commercial operating requirements worldwide. Why Pipe Fitting Selection Matters Pipe fittings are responsible for: Connecting pipes Changing flow direction Regulating fluid movement Managing pressure transitions Supporting system safety Improper fitting selection can cause serious probl...
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