Can the 90Â° angle swivel connector, galvanized steel, type R-GG90, be used with fluids other than hydraulic oil within its -20Â°C to +80Â°C temperature range?

Short answer: Possibly, but with important limitations and checks. The 90Â° angle swivel connector, galvanized steel, type R-GG90 is specified and designed for hydraulic oil. Key features affecting compatibility: galvanized steel body, NBR (nitrile/butadiene) seals, BSP connections, and an operating temperature range of -20Â°C to +80Â°C. These imply: - Seal compatibility: NBR is suitable for many mineral oils, water-glycol fluids and some fuels, but it is not compatible with many synthetic hydraulic fluids (phosphate esters, some esters), ketones, aromatic hydrocarbons, strong acids/alkalis, chlorinated solvents or hot water/steam. If the alternative fluid attacks NBR, seals will swell, harden or leak. - Temperature limits: -20Â°C to +80Â°C must cover fluid viscosity and seal performance for the fluid. Some fluids become too viscous at low temps or degrade above 80Â°C. - Galvanized steel: resistant to many fluids but can suffer corrosion with acidic, highly alkaline, or certain aggressive chemicals (e.g., strong solvents, seawater over time). - Mechanical design: intended for low-torque rotation at low speeds; not suitable where the fluid or application requires high rotational speed or elevated internal pressures beyond the swivelâs rating. Recommendation: Check the chemical compatibility of the specific fluid with NBR and galvanized steel, confirm operating pressures and rotational speed remain within the swivelâs limits, and ensure fluid temperature stays within -20Â°Câ¦+80Â°C. If compatibility is uncertain or the fluid is aggressive, consider a swivel with compatible seal material (e.g., FKM/EPDM/PTFE) and corrosion-resistant construction.

Is the 90Â° angle swivel connector, galvanized steel, type R-GG90 suitable for continuous use with biodegradable hydraulic fluids?

No. The 90Â° angle swivel connector, galvanized steel, type R-GG90 is specified for hydraulic oil and uses NBR sealing, which is generally not compatible with many biodegradable hydraulic fluids (esters, polyalkylene glycols) that can swell or degrade NBR. Material and temperature range (-20Â°C to +80Â°C) do not guarantee chemical compatibility. Therefore it is not recommended for continuous use with biodegradable hydraulic fluids without confirmation from the manufacturer or switching to seals and materials rated for the specific biodegradable fluid.

Does the 90Â° angle swivel connector, galvanized steel, type R-GG90 support intermittent rotation under low torque without leakage?

Yes. The 90Â° angle swivel connector, galvanized steel, type R-GG90 supports intermittent rotation under low torque without leakage, within its specified limits. The product is explicitly designed as a swivel joint for hydraulic oil and intended for rotation at low torque to eliminate hose stress. Its constructionâgalvanized steel body with NBR (nitrile) sealingâsuits hydraulic oil applications and provides effective sealing in intermittent, low-torque rotation. Operating temperature range is â20Â°C to +80Â°C; performance outside this range or under high torque, continuous rotation, or high rotational speeds is not covered by the specification and may cause leakage or premature wear. Ensure correct BSP male/female connections, proper installation, compatibility with the hydraulic fluid, and operation within the stated temperature and torque conditions to maintain leak-free intermittent rotation.

Swivel coupling angled 90°, steel galvanized, type R-GG90

All products, Hydraulic rotary unions/

Additional information

Material	CS – steel (cast iron)

Swivel coupling angled 90° R-GG90 with bearing ball intended for oil hydraulic. used in systems demanding connections swivel in order to eliminating stresses hoses. coupling intended for performing revolutions at small moment swivel. Not is designed for use with large speeds swivel. Material: steel galvanized. sealing: NBR. Connection: female / BSP male. Operating temperature: od -20°C up to +80°C.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Price	Quantity	Actions	Catalogue
DC-R-GG90-04	Coupling swivel angled type GG90 1/4"	-	400	In stock	0 zł		Enquiry
DC-R-GG90-08	Coupling swivel angled type GG90 1/2"	-	300	In stock	0 zł		Enquiry

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Swivel coupling angled 90° R-GG90 with bearing ball intended for oil hydraulic. used in systems demanding connections swivel in order to eliminating stresses hoses. coupling intended for performing revolutions at small moment swivel. Not is designed for use with large speeds swivel. Material: steel galvanized. sealing: NBR. Connection: female / BSP male. Operating temperature: od -20°C up to +80°C.