Is the GE-BB screw connection, carbon steel, zinc-nickel compatible with hydraulic systems using mineral oil and up to what operating pressure?

Yes. The GE-BB screw connection, carbon steel, zinc-nickel is suitable for hydraulic systems using mineral oil. The 24Â° DIN 2353 metal-to-metal sealing (DIN 3852 type B) and carbon steel construction are standard for mineral-oil hydraulics, and the zinc-nickel coating provides excellent corrosion resistance without compromising compatibility with typical hydraulic fluids. Regarding operating pressure: DIN 2353 fittings are manufactured and rated by series (light L and heavy S) and by thread/size; they rely on a safety factor of 2.5:1. Typical maximum working pressures for DIN 2353 GE fittings are approximately: - Light series (L): up to roughly 315â350 bar for common metric sizes - Heavy series (S): up to roughly 420â500 bar for comparable sizes Exact permissible working pressure depends on the specific thread size, series, and manufacturer certification, so verify the pressure rating for the exact GE-BB screw connection, carbon steel, zinc-nickel part number and size before use.

Does the GE-BB screw connection, carbon steel, zinc-nickel require special maintenance after salt spray exposure?

No special maintenance is normally required after salt spray exposure for the GE-BB screw connection, carbon steel, zinc-nickel. The zinc-nickel coating (6â10 Âµm) provides very high corrosion resistance (up to 720 hours in a salt spray chamber), so under typical conditions the protective layer remains effective. After prolonged or unusually aggressive exposure, inspect for coating damage, remove surface contaminants, and, if defects are found, repair or replace the part to maintain sealing integrity (metal-to-metal DIN 3852 type B). Ensure threads and sealing faces are clean and free of corrosion before reassembly.

Can the GE-BB screw connection, carbon steel, zinc-nickel be used in high-temperature hydraulic systems?

Generally no. the GE-BB screw connection, carbon steel, zinc-nickel is not recommended for high-temperature hydraulic systems without further verification. Why: - The description specifies carbon steel base material with a zinc-nickel plating (6â10 Âµm) for corrosion resistance. Zinc-nickel coatings offer good corrosion protection but have limited high-temperature stability; prolonged exposure to elevated temperatures (typically above ~150â200 Â°C, depending on alloy and process) can degrade coating integrity, reduce corrosion resistance and change mechanical properties. - DIN 2353 GE-BB is a 24Â° metal-to-metal sealed fitting (DIN 3852 Type B) designed for standard hydraulic applications with a defined safety factor 2.5:1. Metal-to-metal seals rely on precise contact geometry; thermal expansion at high temperatures can affect sealing performance and preload required to maintain leak-tightness. - Carbon steel strength and hardness change with temperature. At elevated temperatures the tensile strength and yield decrease, which may reduce the effective safety margin and risk thread deformation or loosening under pressure and thermal cycling. - âHigh-temperatureâ is not quantified in the data you provided. Acceptable temperature depends on system medium, pressure, exposure duration and cycles. For many hydraulic systems above ~120â150 Â°C special materials (stainless steels, high-temperature alloys), high-temp coatings, and seals rated for those temperatures are used. Recommendation: - Define the operating temperature, pressure and exposure time/cycling. - Consult the manufacturerâs temperature ratings and material data for the specific GE-BB part and the zinc-nickel coating used. - For continuous or repeated operation at elevated temperatures, consider fittings and coatings explicitly rated for high temperatures (e.g., stainless steel variants or special platings) and validate with pressure/temperature testing.

Fitting screw-in GE-BB, carbon steel, zinc-nickel

Additional information

Material	CS – steel (cast iron)
Standard length [m]	2, 4

Fitting DIN 2353 screw-in, type GE-BB: 24° DIN 2353 socket with metric male thread and with BSP male thread (sealing DIN 3852 type B – metal o metal). Safety factor 2.5:1. Available as: L (series light), S (series heavy). Surface coated with zinc-nickel with a layer thickness of 6-10 µm, which offers very high corrosion resistance (up to 720 hours without corrosion in a salt spray chamber). Material: carbon steel, zinc-nickel.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
HD-GE-06L-BB-02-CN	Fitting DIN 2353 GE 6L 1/8" BSP, Zn-Ni	-	400	In stock	Enquiry
HD-GE-06L-BB-04-CN	Fitting DIN 2353 GE 6L 1/4" BSP, Zn-Ni	-	400	In stock	Enquiry
HD-GE-06L-BB-06-CN	Fitting DIN 2353 GE 6L 3/8" BSP, Zn-Ni	-	400	In stock	Enquiry
HD-GE-06L-BB-08-CN	Fitting DIN 2353 GE 6L 1/2" BSP, Zn-Ni	-	400	In stock	Enquiry
HD-GE-06S-BB-04-CN	Fitting DIN 2353 GE 6S 1/4" BSP, Zn-Ni	-	500	In stock	Enquiry
HD-GE-06S-BB-06-CN	Fitting DIN 2353 GE 6S 3/8" BSP, Zn-Ni	-	500	In stock	Enquiry
HD-GE-06S-BB-08-CN	Fitting DIN 2353 GE 6S 1/2" BSP, Zn-Ni	-	500	In stock	Enquiry
HD-GE-08L-BB-02-CN	Fitting DIN 2353 GE 8L 1/8" BSP, Zn-Ni	-	400	In stock	Enquiry
HD-GE-08L-BB-04-CN	Fitting DIN 2353 GE 8L 1/4" BSP, Zn-Ni	-	400	In stock	Enquiry
HD-GE-08L-BB-06-CN	Fitting DIN 2353 GE 8L 3/8" BSP, Zn-Ni	-	400	In stock	Enquiry
HD-GE-08L-BB-08-CN	Fitting DIN 2353 GE 8L 1/2" BSP, Zn-Ni	-	400	In stock	Enquiry
HD-GE-08S-BB-04-CN	Fitting DIN 2353 GE 8S 1/4" BSP, Zn-Ni	-	500	In stock	Enquiry
HD-GE-08S-BB-06-CN	Fitting DIN 2353 GE 8S 3/8" BSP, Zn-Ni	-	500	In stock	Enquiry
HD-GE-08S-BB-08-CN	Fitting DIN 2353 GE 8S 1/2" BSP, Zn-Ni	-	500	In stock	Enquiry
HD-GE-10L-BB-02-CN	Fitting DIN 2353 GE 10L 1/8" BSP, Zn-Ni	-	400	In stock	Enquiry
HD-GE-10L-BB-04-CN	Fitting DIN 2353 GE 10L 1/4" BSP, Zn-Ni	-	400	In stock	Enquiry
HD-GE-10L-BB-06-CN	Fitting DIN 2353 GE 10L 3/8" BSP, Zn-Ni	-	400	In stock	Enquiry
HD-GE-10L-BB-08-CN	Fitting DIN 2353 GE 10L 1/2" BSP, Zn-Ni	-	400	In stock	Enquiry
HD-GE-10S-BB-04-CN	Fitting DIN 2353 GE 10S 1/4" BSP, Zn-Ni	-	500	In stock	Enquiry
HD-GE-10S-BB-06-CN	Fitting DIN 2353 GE 10S 3/8" BSP, Zn-Ni	-	400	In stock	Enquiry
HD-GE-10S-BB-08-CN	Fitting DIN 2353 GE 10S 1/2" BSP, Zn-Ni	-	400	In stock	Enquiry
HD-GE-12L-BB-04-CN	Fitting DIN 2353 GE 12L 1/4" BSP, Zn-Ni	-	400	In stock	Enquiry
HD-GE-12L-BB-06-CN	Fitting DIN 2353 GE 12L 3/8" BSP, Zn-Ni	-	400	In stock	Enquiry
HD-GE-12L-BB-08-CN	Fitting DIN 2353 GE 12L 1/2" BSP, Zn-Ni	-	400	In stock	Enquiry
HD-GE-12L-BB-12-CN	Fitting DIN 2353 GE 12L 3/4" BSP, Zn-Ni	-	400	In stock	Enquiry
HD-GE-12S-BB-04-CN	Fitting DIN 2353 GE 12S 1/4" BSP, Zn-Ni	-	400	In stock	Enquiry
HD-GE-12S-BB-06-CN	Fitting DIN 2353 GE 12S 3/8" BSP, Zn-Ni	-	400	In stock	Enquiry
HD-GE-12S-BB-08-CN	Fitting DIN 2353 GE 12S 1/2" BSP, Zn-Ni	-	400	In stock	Enquiry
HD-GE-12S-BB-12-CN	Fitting DIN 2353 GE 12S 3/4" BSP, Zn-Ni	-	400	In stock	Enquiry
HD-GE-14S-BB-06-CN	Fitting DIN 2353 GE 14S 3/8" BSP, Zn-Ni	-	400	In stock	Enquiry
HD-GE-14S-BB-08-CN	Fitting DIN 2353 GE 14S 1/2" BSP, Zn-Ni	-	400	In stock	Enquiry
HD-GE-14S-BB-12-CN	Fitting DIN 2353 GE 14S 3/4" BSP, Zn-Ni	-	400	In stock	Enquiry
HD-GE-15L-BB-04-CN	Fitting DIN 2353 GE 15L 1/4" BSP, Zn-Ni	-	400	In stock	Enquiry
HD-GE-15L-BB-06-CN	Fitting DIN 2353 GE 15L 3/8" BSP, Zn-Ni	-	400	In stock	Enquiry
HD-GE-15L-BB-08-CN	Fitting DIN 2353 GE 15L 1/2" BSP, Zn-Ni	-	400	In stock	Enquiry
HD-GE-15L-BB-12-CN	Fitting DIN 2353 GE 15L 3/4" BSP, Zn-Ni	-	400	In stock	Enquiry
HD-GE-16S-BB-06-CN	Fitting DIN 2353 GE 16S 3/8" BSP, Zn-Ni	-	400	In stock	Enquiry
HD-GE-16S-BB-08-CN	Fitting DIN 2353 GE 16S 1/2" BSP, Zn-Ni	-	400	In stock	Enquiry
HD-GE-16S-BB-12-CN	Fitting DIN 2353 GE 16S 3/4" BSP, Zn-Ni	-	400	In stock	Enquiry
HD-GE-18L-BB-06-CN	Fitting DIN 2353 GE 18L 3/8" BSP, Zn-Ni	-	400	In stock	Enquiry
HD-GE-18L-BB-08-CN	Fitting DIN 2353 GE 18L 1/2" BSP, Zn-Ni	-	400	In stock	Enquiry
HD-GE-18L-BB-12-CN	Fitting DIN 2353 GE 18L 3/4" BSP, Zn-Ni	-	400	In stock	Enquiry
HD-GE-18L-BB-16-CN	Fitting DIN 2353 GE 18L 1" BSP, Zn-Ni	-	200	In stock	Enquiry
HD-GE-20S-BB-08-CN	Fitting DIN 2353 GE 20S 1/2" BSP, Zn-Ni	-	200	In stock	Enquiry
HD-GE-20S-BB-12-CN	Fitting DIN 2353 GE 20S 3/4" BSP, Zn-Ni	-	200	In stock	Enquiry
HD-GE-20S-BB-16-CN	Fitting DIN 2353 GE 20S 1" BSP, Zn-Ni	-	200	In stock	Enquiry
HD-GE-22L-BB-08-CN	Fitting DIN 2353 GE 22L 1/2" BSP, Zn-Ni	-	200	In stock	Enquiry
HD-GE-22L-BB-12-CN	Fitting DIN 2353 GE 22L 3/4" BSP, Zn-Ni	-	200	In stock	Enquiry
HD-GE-22L-BB-16-CN	Fitting DIN 2353 GE 22L 1" BSP, Zn-Ni	-	200	In stock	Enquiry
HD-GE-25S-BB-12-CN	Fitting DIN 2353 GE 25S 3/4" BSP, Zn-Ni	-	200	In stock	Enquiry
HD-GE-25S-BB-16-CN	Fitting DIN 2353 GE 25S 1" BSP, Zn-Ni	-	200	In stock	Enquiry
HD-GE-25S-BB-20-CN	Fitting DIN 2353 GE 25S 1.1/4" BSP, Zn-Ni	-	200	In stock	Enquiry
HD-GE-28L-BB-12-CN	Fitting DIN 2353 GE 28L 3/4" BSP, Zn-Ni	-	200	In stock	Enquiry
HD-GE-28L-BB-16-CN	Fitting DIN 2353 GE 28L 1" BSP, Zn-Ni	-	200	In stock	Enquiry
HD-GE-28L-BB-20-CN	Fitting DIN 2353 GE 28L 1.1/4" BSP, Zn-Ni	-	200	In stock	Enquiry
HD-GE-30S-BB-12-CN	Fitting DIN 2353 GE 30S 3/4" BSP, Zn-Ni	-	200	In stock	Enquiry
HD-GE-30S-BB-16-CN	Fitting DIN 2353 GE 30S 1" BSP, Zn-Ni	-	200	In stock	Enquiry
HD-GE-30S-BB-20-CN	Fitting DIN 2353 GE 30S 1.1/4" BSP, Zn-Ni	-	200	In stock	Enquiry
HD-GE-35L-BB-12-CN	Fitting DIN 2353 GE 35L 3/4" BSP, Zn-Ni	-	200	In stock	Enquiry
HD-GE-35L-BB-16-CN	Fitting DIN 2353 GE 35L 1" BSP, Zn-Ni	-	200	In stock	Enquiry
HD-GE-35L-BB-20-CN	Fitting DIN 2353 GE 35L 1.1/4" BSP, Zn-Ni	-	200	In stock	Enquiry
HD-GE-35L-BB-24-CN	Fitting DIN 2353 GE 35L 1.1/2" BSP, Zn-Ni	-	200	In stock	Enquiry
HD-GE-38S-BB-16-CN	Fitting DIN 2353 GE 38S 1" BSP, Zn-Ni	-	200	In stock	Enquiry
HD-GE-38S-BB-20-CN	Fitting DIN 2353 GE 38S 1.1/4" BSP, Zn-Ni	-	200	In stock	Enquiry
HD-GE-38S-BB-24-CN	Fitting DIN 2353 GE 38S 1.1/2" BSP, Zn-Ni	-	200	In stock	Enquiry
HD-GE-42L-BB-16-CN	Fitting DIN 2353 GE 42L 1" BSP, Zn-Ni	-	200	In stock	Enquiry
HD-GE-42L-BB-20-CN	Fitting DIN 2353 GE 42L 1.1/4" BSP, Zn-Ni	-	200	In stock	Enquiry
HD-GE-42L-BB-24-CN	Fitting DIN 2353 GE 42L 1.1/2" BSP, Zn-Ni	-	200	In stock	Enquiry

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Fitting DIN 2353 screw-in, type GE-BB: 24° DIN 2353 socket with metric male thread and with BSP male thread (sealing DIN 3852 type B – metal o metal). Safety factor 2.5:1. Available as: L (series light), S (series heavy). Surface coated with zinc-nickel with a layer thickness of 6-10 µm, which offers very high corrosion resistance (up to 720 hours without corrosion in a salt spray chamber). Material: carbon steel, zinc-nickel.