Is the 90Â° angle swivel connector, galvanized steel, type GG90 suitable for high-speed rotation or only low-torque, low-speed applications?

The 90Â° angle swivel connector, galvanized steel, type GG90 is intended for low-torque, low-speed applications only. Its design (ball bearing for hydraulic oil and explicit note that it is not designed for high rotational speeds) and materials (galvanized steel, NBR seals) make it suitable to eliminate hose stress during rotation but not for continuous high-speed operation. Use it where slow or infrequent swiveling under low torque is required; avoid for high-speed or high-torque rotary applications.

Can the 90Â° angle swivel connector, galvanized steel, type GG90 be used with fluids other than hydraulic oil, such as water-glycol or mineral-based coolants?

The 90Â° angle swivel connector, galvanized steel, type GG90 is specified and designed for hydraulic oil. It uses NBR seals and galvanized steel materials, and is intended for low-torque rotation at low rotational speeds. Compatibility considerations: - Water-glycol fluids: NBR has limited resistance to water-glycol; some formulations can cause swelling or accelerated wear. Short-term use may work, but long-term sealing reliability is uncertain. - Mineral-based coolants: NBR is generally compatible with many mineral oils, so mineral-based coolants that are predominantly mineral oil are more likely acceptable. - Temperature and additives: Operating temperature range (-40Â°C to +106Â°C) and any aggressive additives (corrosion inhibitors, glycol concentrations, biocides) can affect longevity and seal performance. Recommendation: For reliable use with fluids other than hydraulic oil, confirm fluid compatibility with NBR and galvanized steel (manufacturer data or tests). If uncertain, consider a version specified for the target fluid or seals made from FKM/EPDM selected for that medium.

Does the 90Â° angle swivel connector, galvanized steel, type GG90 require special maintenance for NBR seals when used in cold climates?

No special maintenance is required for the 90Â° angle swivel connector, galvanized steel, type GG90 regarding its NBR seals when used in cold climates, provided the operating temperature stays within the specified range of â40Â°C to +106Â°C. NBR (nitrile rubber) is compatible with that temperature range and will retain sealing properties down to â40Â°C. Practical notes to ensure reliable performance: - Avoid exposing the joint to temperatures below â40Â°C, where NBR can harden and lose elasticity. - Ensure proper installation and avoid excessive torque or rotational speeds (unit is designed for low-torque rotation only). - Inspect seals periodically for wear, cracking or hardening if the connector is used frequently at the low end of the temperature range or in abrasive/contaminated environments. - If exposure to aggressive chemicals or oils outside NBR compatibility is expected, consider alternative seal materials. In normal cold-climate use within the specified temperature limits, routine visual inspections are sufficient; no special cold-weather maintenance is required.

Swivel coupling angled 90°, steel galvanized, type GG90

All products, Hydraulic rotary unions/

Additional information

Material	CS – steel (cast iron)

Swivel coupling angled 90° 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: male / BSP female or NPT. Operating temperature: od -40°C up to +106°C.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
ZO-GG90-04	Coupling swivel 90° male/female 1/4" BSP	-	400	In stock	Enquiry
ZO-GG90-06	Coupling swivel 90° male/female 3/8" BSP	-	400	In stock	Enquiry
ZO-GG90-08	Coupling swivel 90° male/female 1/2" BSP	-	360	In stock	Enquiry
ZO-GG90-08N	Coupling swivel 90° male/female 1/2" NPT	-	360	In stock	Enquiry
ZO-GG90-12	Coupling swivel 90° male/female 3/4" BSP	-	310	In stock	Enquiry
ZO-GG90-16	Coupling swivel 90° male/female 1" BSP	-	280	In stock	Enquiry
ZO-GG90-16N	Coupling swivel 90° male/female 1" NPT	-	280	In stock	Enquiry
ZO-GG90-20	Coupling swivel 90° male/female 1.1/4" BSP	-	250	In stock	Enquiry
ZO-GG90-24	Coupling swivel 90° male/female 1.1/2" BSP	-	210	In stock	Enquiry
ZO-GG90-32	Coupling swivel 90° male/female 2" BSP	-	180	In stock	Enquiry

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Swivel coupling angled 90° 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: male / BSP female or NPT. Operating temperature: od -40°C up to +106°C.