Ductile Cast Iron Ggg50 Pressure Sustaining Valve DN80 Pn16 with Pressure Gauge Both Side

Ductile Cast Iron Ggg50 Pressure Sustaining Valve DN80 Pn16 with Pressure Gauge Both Side. Self-Cleaning Screen: Inlet screen prevents large particles from entering the control system for smooth operation. Water Hammer Protection: Reduces impact caused by water hammer after fire pump shutdown in large water supply systems. Adjustable Closing Speed: Valve closes slowly at an adjustable speed when pressure returns to normal levels. Hydraulic Independent Operation: Hydraulic pressure driven design ensures independent and stable operation without external power. Flexible & Serviceable Design: In-line serviceable structure allows easy maintenance and flexible addition of features. High Strength & Long Life: Ductile cast iron construction offers high strength and long service life for pipes up to 600 caliber. Multi-Function Pressure Control: Relieves excessive pressure instantly and sustains upstream pressure to preset values. Pump Protection: Prevents pump overload, cavitation damage, and limits pump flow by sustaining differential pressure.