Fire Equipment manufacturer / supplier in China, offering Groove Type Pn16 Pressure Alarm Deluge Valve with FM UL Certifications 2" to 8", Pn16 Ductile Iron FM UL Grooved Alarm Deluge Valve, FM UL Groove End Alarm Deluge Valve, 250 Psi or 300 Psi, DN50 to DN200 and so on.