TianKang HongJi Integral Three Valve Manifold with Plug, manufactured by Hongji Instrument & Valve Manufacturing Co., Ltd., is a compact and durable solution that integrates multiple valves into a single solid body for efficient pressure control. Designed for direct or indirect connection with pressure gauges, pressure transmitters, and differential pressure transmitters, this manifold enables precise measurement and equalization of static, gauge, and differential pressures within process instrumentation lines. Its engineered configuration supports reliable bleeding, blocking, and calibration functions, ensuring stable operation, enhanced system safety, and reduced maintenance in demanding industrial environments such as oil & gas, chemical processing, power generation, and general automation systems.