WZ series of foam spray fire extinguishing installations 

 The PWZ foam spray fire extinguishing installations (Mr. Rowe: 13928818119) zone control valve, spray nozzle, pressure gauge, set flow tube from the tank, the nitrogen group of bottles, one-way valve, pressure reducing valve, safety valve and connecting pipe , as well as fire detectors, fire alarm controller and other components. Is a set to independently complete fire detection and alarm system devices and control, automatic or emergency manually start the foam spray fire alarm and other fire control system combined transport control. 

 PWZ foam spray fire extinguishing installations reference the standards and norms: 
 Low-expansion foam fire extinguishing system design specifications "GB50151-92 
 "Automatic sprinkler system design specifications" GB50084-2001 
 Sprinkler System design specifications "GB50219-1995 
 "The driver of fixed fire extinguishing systems, control devices - General technical requirements" GA61-2002 
 Automatic fire alarm system design specifications "GB50116-98 
 Synthetic foam fire extinguishing system application technology Statutes of CECS 156:2004 
 How it works: 
 The PWZ foam spray fire extinguishing installations are premixed type foam fire extinguishing agent and water by mixing stored in the tank. Automatic alarm when the fire broke through the fire linkage control or manual control to start the power source of high pressure nitrogen gas, nitrogen promote the reservoir of premixed type extinguishing agent, after the pipe and nozzle atomization, sprayed into the fire on the object, with The combined effects of cooling, asphyxiation, emulsification, isolation of mist and foam to achieve the purpose of quickly extinguishing. 
 Main features: 

 With from the reliability and security. Device with automatic, manual and mechanical emergency start three start, start the stable and reliable; equipment installation, operation, easy maintenance, during operation does not constitute any security risks around the facilities. 
 Compared with the water spray system, the gas reservoir pressure power source to the device, without the equipment of the fire pumps, rain valve and so on, without the need for the fire water tank, fire pump house, making the device more compact, installation, maintenance and more simple, operation is simple and reliable project cost savings, is an "efficient, safe, economic, and environmental protection," the fire-fighting devices. 
 Depending on the tank filled with foam fire extinguishing agent, the system called S-type synthetic foam spray fire extinguishing installations and AFFF AFFF spray fire extinguishing installations two kinds. 

 Device main performance parameters 

 Device working pressure :0.35-1 .0 Mpa; 
 Continuous supply of the device should not be less than 15 min; 
 Foam spray nozzle rated working pressure of not less than 0.35Mpa; 
 Nitrogen cylinder storage pressure of not greater than 15 Mpa; 
 The foam spray to eliminate the use of the device ambient temperature is 4 ° C - 50 ° C; 
 Device main power supply: AC220V 50Hz 

 The use of the device: 

 PWZ series of foam spray fire extinguishing installations exist because of fire extinguishing agent to the tank, the piping of the entire system for dry pipe can be used in dry and cold areas do not have to set up a dedicated water supply and drainage equipment. The system covers an area of ??small saving investment, equipment installation, operation, maintenance is simple and convenient. Who were able to fire with water spray and foam fire extinguishing system to fight the blaze in principle, can install a the PWZ series of foam spray fire extinguishing installations. 

 The foam spray fire extinguishing device can be widely used in the following places: 

 Oil-immersed power transformers; 
 Oil-fired boiler room; 
 Fuel generator room; 
 Small oil depot 
 Small oil tank 
 Small garage 
 Small repair garage 
 The ship's cabin and engine compartment