POK English catalogue (USA)

POK France - ZI Les Guignons - 10400 Nogent-sur-Seine - FRANCE Tel: +33 (0)3 25 39 84 78 - Fax: +33 (0)3 25 39 84 90 - Email: export@pok.fr - Web: www.pok.fr 211 Foam chambers Inlet Flow rate (GPM) Dimensions (inches) Weight (lbs) Ref. Flange 2'' ASA150 80 21.1 x 10.55 x 39.65 37.48 20473 Flange 3'' ASA150 160 22.91 x 11.02 x 41.93 90.39 13550 Flange 4'' ASA150 320 28.46 x 13.15 x 52.48 152.12 15221 Flange 6'' ASA150 640 35.39 x 17.09 x 66.46 233.69 15246 Our family of foam chambers is entirely made in stainless steel (standard model) and covers a large range of flow rates. All components of this product is the result of work of the metal workshop following strict procedures and knowledge. Our range is available in various models: 2", 3", 4" and 6". The inlet coupling is a flange ASA150 from 2 to 6" depending on the required flow rate (available with ISO type flange). The POK foam discharge systems are used to protect storage tanks with floating roof and with vertical opening, containing flammable or combustible liquids. They consist of two integrated components: a generator for generating the foam expansion, and a spillway to guide the foam to the bottom of the tank wall at the joint surface. Each foam generator operates by transferring a pressurized foam solution through a calibrated stainless steel orifice. Air is drawn through louvers into the generator and thoroughly mixed; and the foam thus produced passes through the weir and is projected outward. The foam then falls on the tray and extends over the area around the seal of the tank. POK Foam Tank Seal Generators are available in four sizes with nominal flow capacities of foam from 25 to 640 GPM. The foam generation of these devices depends on the quality of the foam concentrate as well as the operating conditions. With a good quality foam concentrate and a pressure of 100 PSI at the inlet of the generator, the expansion rate is about 8. Tank Seal systems are suitable for use with all low expansion foam agents and for all types of fire hazard applications including oil and refrigerated solvent. The shape of the system is made to avoid foam projections that would be counter productive in case of solvent fires. To ensure maximum protection of the tank seal, the foam will form a circular ring around the floating roof. Thus, it is recommended to design a circular barrier of an anti-corrosion material. The foam is thus guided into this corridor with a sufficient depth. For optimum security, we recommend a minimum volume of 12" x 12" and a maximum volume of 24" x 24". This will provide perfect drainage of the foam around the floating roof. The drainage grooves rain water to flow away, which favors the production of foam. In case of fire, a rapid response is required. To accomplish this, a sensing system will instantly trigger the overflow foam, thus avoiding consequential damages. Maximum working pressure: 230 PSI Material: stainless steel Foam chambers F o r e l e c t r i c a l f i r e A d j u s t a b l e f l o w r a t e I n d e x e d o p e n n i n g S a l t a t m o s p h e r e Oil tank Water / foam supply Foam chamber Pump Floating roof