50+ Years Anti-Corrosion: Hot-dip galvanized finish forms compact zinc alloy layer resisting rust, acid, and moisture.
ASTM A197 Raw Material: High ductility malleable cast iron ensures great toughness and anti-impact performance.
CNC Precision Thread: Uniform tooth pitch with NPT/BSP/ISO7 standards guarantees tight seal and no leakage.
100% Pressure Tested: Every batch passes hydraulic test, dimension, and thread inspection before shipment.
No Welding Required: Threaded connection with pipe wrench shortens construction period and lowers labor cost.
OEM & ODM Customization: Supports custom thread, special size, logo, surface finish, and flexible minor adjustments.
Global Certification: UL, FM, and ISO 9001 certified for fire protection, water supply, and industrial use.