Is GEYSER 20 ED FV cooling water transport hose suitable for continuous operation at external temperatures up to +550Â°C?

No. The GEYSER 20 ED FV cooling water transport hose is not suitable for continuous operation at external temperatures up to +550Â°C. Its specified normal operating temperature range is â35Â°C to +120Â°C; the fiberglass-coated outer layer is described as resistant to heat radiation up to +550Â°C only temporarily (and to splashes of hot materials), which implies short-term or incidental exposure rather than sustained service at that temperature. Continuous external exposure at +550Â°C would exceed the hoseâs rated operating temperature and likely degrade materials, compromise reinforcement and sealing, and void safe working conditions despite the temporary highâtemperature resistance of the outer coating.

Can GEYSER 20 ED FV cooling water transport hose withstand temporary splashes of molten metal and radiant heat up to +550Â°C?

Yes. The GEYSER 20 ED FV cooling water transport hose is designed for metallurgical use and its outer layer is coated with fiberglass that resists radiant heat up to +550Â°C temporarily and withstands splashes of hot materials. Its inner insulating EPDM layer provides dielectric protection and high resistance to water/steam penetration; the hose is rated for 20 bar working pressure and has specified minimum bending radii for pressures above 3 bar. Note that the +550Â°C rating refers to temporary exposure to radiant heat and splashes, not continuous operation at that temperature; continuous operating temperature is up to +120Â°C.

Does GEYSER 20 ED FV cooling water transport hose maintain dielectric properties after exposure to up to +550Â°C?

Yes. GEYSER 20 ED FV cooling water transport hose maintains its dielectric properties under exposure to temperatures up to +550Â°C only to the extent specified: the hoseâs inner layer is an insulating (dielectric) EPDM rubber with resistance R > 10^11 Î© and dielectric strength â¥ 6000 V/mm, designed to resist electrical breakdown and increased water/steam penetration under extreme conditions. The outer layer is coated with fiberglass that resists heat radiation up to +550Â°C temporarily and protects against splashes of hot materials. Important limits: the +550Â°C rating applies to external exposure of the outer layer (temporary heat radiation/splashes), not to continuous internal working temperature (rated for normal operation to +120Â°C). Therefore dielectric performance is preserved insofar as the inner insulating layer is not degraded by prolonged internal or through-wall overheating; temporary external exposure up to +550Â°C with intact outer protection is compatible with maintaining the specified dielectric values. Continuous internal temperatures above the +120Â°C operating limit or damage to the outer layer from severe or prolonged +550Â°C exposure could impair the dielectric properties.

GEYSER 20 ED FV cooling water transport hose

Air and water hoses, All products/

Additional information

Material	EPDM – ethylene-propylene-diene rubber
Maximum operating temperature [°C]	120
Minimum operating temperature [°C]	-35
Vacuum resistance	no
Standard length [m]	40, 50
Reinforcement	synthetic braid

Hose designed specifically for transporting cooling water, used in metallurgical furnaces, transformer cooling systems, and electrical converters. Used in steel metallurgy. The outer layer is coated with fiberglass resistant to heat radiation up to +550°C (temporarily) and splashes of hot materials. The inner layer is insulating (dielectric), R>10^11Ω, resistant to electrical breakdown E≥6000 V/mm, with increased resistance to water and steam penetration under extreme operating conditions. The minimum bending radius in the technical specifications is given for pressures above 3 bar. Inner layer: light blue, insulating EPDM rubber. Reinforcement: synthetic cord. Outer layer: EPDM rubber coated with fiberglass. Working pressure: 20 bar. Operating temperature: from -35°C to +120°C, external up to +550°C.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
MT-GEYSER20-EDFV-006	GEYSER/20-ED/FV 6x16 mm hose	6	20	In stock	Enquiry
MT-GEYSER20-EDFV-008	GEYSER/20-ED/FV hose 8x18 mm	8	20	In stock	Enquiry
MT-GEYSER20-EDFV-010	GEYSER/20-ED/FV hose 10x20 mm	10	20	In stock	Enquiry
MT-GEYSER20-EDFV-013	GEYSER/20-ED/FV hose 13x24 mm	12	20	In stock	Enquiry
MT-GEYSER20-EDFV-016	GEYSER/20-ED/FV hose 16x28 mm	16	20	In stock	Enquiry
MT-GEYSER20-EDFV-019	GEYSER/20-ED/FV hose 19x32 mm	20	20	In stock	Enquiry
MT-GEYSER20-EDFV-025	GEYSER/20-ED/FV hose 25x39 mm	25	20	In stock	Enquiry
MT-GEYSER20-EDFV-032	GEYSER/20-ED/FV hose 32x48 mm	32	20	In stock	Enquiry
MT-GEYSER20-EDFV-038	Hose GEYSER/20-ED/FV 38x54 mm	38	20	In stock	Enquiry
MT-GEYSER20-EDFV-045	GEYSER/20-ED/FV hose 45x63 mm	45	20	In stock	Enquiry
MT-GEYSER20-EDFV-050	GEYSER/20-ED/FV hose 50x68 mm	50	20	In stock	Enquiry
MT-GEYSER20-EDFV-060	Hose GEYSER/20-ED/FV 60x80 mm	60	20	In stock	Enquiry
MT-GEYSER20-EDFV-063	Hose GEYSER/20-ED/FV 63.5x80 mm	65	20	In stock	Enquiry
MT-GEYSER20-EDFV-075	GEYSER/20-ED/FV hose 75x95 mm	75	20	In stock	Enquiry
MT-GEYSER20-EDFV-080	GEYSER/20-ED/FV hose 80x100 mm	80	20	In stock	Enquiry
MT-GEYSER20-EDFV-100	Hose GEYSER/20-ED/FV 100x124 mm	100	20	In stock	Enquiry

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Hose designed specifically for transporting cooling water, used in metallurgical furnaces, transformer cooling systems, and electrical converters. Used in steel metallurgy. The outer layer is coated with fiberglass resistant to heat radiation up to +550°C (temporarily) and splashes of hot materials. The inner layer is insulating (dielectric), R>10^11Ω, resistant to electrical breakdown E≥6000 V/mm, with increased resistance to water and steam penetration under extreme operating conditions. The minimum bending radius in the technical specifications is given for pressures above 3 bar. Inner layer: light blue, insulating EPDM rubber. Reinforcement: synthetic cord. Outer layer: EPDM rubber coated with fiberglass. Working pressure: 20 bar. Operating temperature: from -35°C to +120°C, external up to +550°C.

Additional information

Material	EPDM – ethylene-propylene-diene rubber
Maximum operating temperature [°C]	120
Minimum operating temperature [°C]	-35
Vacuum resistance	no
Standard length [m]	40, 50
Reinforcement	synthetic braid