are not operated automatically. the section control valves (figure ) are opened by hand to supply water to the heads in one or more areas. ready to use hoses can also be supplied. fresh water is used for the initial charging and the system is brought to working pressure by means of the compressed air...
are not operated automatically. the section control valves (figure ) are opened by hand to supply water to the heads in one or more areas. ready to use hoses can also be supplied. fresh water is used for the initial charging and the system is brought to working pressure by means of the compressed air...
are not operated automatically. the section control valves (figure ) are opened by hand to supply water to the heads in one or more areas. ready to use hoses can also be supplied. fresh water is used for the initial charging and the system is brought to working pressure by means of the compressed air...
are not operated automatically. the section control valves (figure ) are opened by hand to supply water to the heads in one or more areas. ready to use hoses can also be supplied. fresh water is used for the initial charging and the system is brought to working pressure by means of the compressed air...
system, with the water being cooled in a radiator. it is usual however, to fit an air-cooled diesel engine. where a closed-circuit fresh-water cooled engine is installed anti-freeze may be needed for the radiator in cold weather. an emergency pump has an independent diesel drive or some alternative...
system, with the water being cooled in a radiator. it is usual however, to fit an air-cooled diesel engine. where a closed-circuit fresh-water cooled engine is installed anti-freeze may be needed for the radiator in cold weather. an emergency pump has an independent diesel drive or some alternative...