Products

Longan Male Threaded Flange China manufacturer focuses on equipment-interface connection rather than standard pipeline joining. It is designed to solve a common engineering failure point: mismatch between flanged pipeline systems and internal-threaded industrial equipment such as pumps, valves, and pressure vessels. By providing a precision-machined male thread transition structure, it enables direct integration without custom welding adapters.

As a China manufacturer of 2 inch socket weld flange class 150, Longan delivers precision-engineered socket weld flanges with zero heat damage, nano-sealing, and micro-stress assembly. Factory-direct quality control from forging to testing ensures structural integrity for oil & gas, power, and petrochemical systems.

Petrochemical pipeline system preferred connector flat slip on flange, directly supplied by Chinese factory Longan, with customization services to meet special size requirements. The innovative double-weld structure reduces installation difficulty, and the built-in titanium alloy reinforcement ring achieves a yield strength of 1,250MPa. API 6A PSL 3G certification guarantees quality safety. One piece minimum order, fast delivery, serving global customers.

Engineers trust the high-performance pipe connector steel flat flanges from Chinese manufacturer Longan. Factory direct sales significantly reduce procurement costs and support small-batch custom trial orders. The product adopts a bionic honeycomb structure, achieving a burst pressure of 42MPa at DN300, which is 280% higher than the national standard. It has passed the authoritative API 6A PSL 3G certification and is suitable for ultra-high pressure scenarios such as shale gas fracturing pumps and deep-sea drilling platforms.

As a trusted China manufacturer, factory, and supplier, Longan delivers class 300 socket weld flange solutions with stable quality and precision engineering for demanding industrial pipelines. Designed for high-pressure and corrosive environments, the product offers reliable sealing performance, vibration resistance, and long-term operational stability across oil & gas, LNG, power generation, and semiconductor systems.

Female Threaded Flange China manufacturer offers easy-install threaded flange supply and export for water pipelines, compressed air systems, fire protection networks, and light industrial piping. Designed for direct connection with externally threaded steel pipes, this flange supports fast on-site assembly without welding, making it suitable for hazardous areas where open flame operations are restricted.