Is the ISO-A Hydraulic Bulkhead Socket, Metric GZ, Valve, Push Pull, Type IA compatible with other ISO-A quick couplings from different manufacturers?

Yes — the ISO-A Hydraulic Bulkhead Socket, Metric GZ, Valve, Push Pull, Type IA is fully interchangeable with ISO-A quick couplings from other manufacturers. Designed to the ISO-A (euro coupling) standard, it ensures cross-brand compatibility and flexible integration across hydraulic systems. Its push–pull mechanism provides automatic disconnection under accidental hose tension, and the internal shut-off valve prevents fluid loss. Constructed from galvanized steel with NBR seals, it operates reliably from −25°C to +100°C at up to 250 bar, with a 4:1 safety factor and optimized flow characteristics (measured at a 3 bar pressure drop), making it suitable for demanding agricultural and industrial applications.

Can the ISO-A Hydraulic Bulkhead Socket, Metric GZ, Valve, Push Pull, Type IA be used with biodegradable hydraulic oils or other non-mineral fluids?

The ISO-A Hydraulic Bulkhead Socket, Metric GZ, Valve, Push Pull, Type IA is specified and engineered for use with hydraulic oil and features NBR (nitrile) seals. NBR is compatible with many mineral hydraulic oils but has limited compatibility with some biodegradable and non-mineral fluids (e.g., certain esters, polyalkylene glycols, phosphate esters) which can cause swelling, hardening or accelerated wear of NBR seals. Therefore: - If the biodegradable or non-mineral fluid's compatibility with NBR is confirmed (manufacturer data sheet or compatibility chart showing NBR safe), the coupling may be used. - If the fluid is an ester-based, PAG or other synthetic type without proven NBR compatibility, do not assume compatibility — seals may degrade and compromise performance and safety. Recommendation: Verify the specific fluid’s compatibility with NBR seals (or request alternative seal materials from the supplier, such as FKM/Viton or EPDM, if available) and confirm suitability with the coupling manufacturer before use.

ISO-A Hydraulic Bulkhead Socket, Metric GZ, Valve, Push Pull, Type IA

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Additional information

Material	CS – steel (cast iron)

The ISO-A hydraulic quick coupling socket with shut-off valve and external metric thread is a reliable solution designed for demanding hydraulic systems. Featuring a practical “push-pull” mechanism, it ensures automatic disconnection in case of accidental hose tension, significantly increasing safety and convenience during operation. Engineered for use with hydraulic oil, it is widely applied in agricultural machinery and is commonly recognized as a “euro coupling.” Fully interchangeable with ISO-A quick couplings from other manufacturers, it guarantees compatibility and flexibility across various systems. Manufactured from durable galvanized steel and equipped with NBR sealing, it delivers long-lasting resistance to wear, corrosion, and intensive use. With an operating temperature range from -25°C to +100°C and a working pressure of up to 250 bar, this coupling provides dependable performance even in harsh conditions. A safety factor of 4:1 ensures maximum reliability, while the optimized flow rate, measured at a 3 bar pressure drop, supports efficient hydraulic power transfer. This makes it an ideal choice for professionals seeking robust, safe, and versatile hydraulic connections.

List of product variants

Article number	Product variant name	Nominal inner diameter	Working pressure [bar]	Enquiry	Catalogue
HQ-IA12P-F-12L-B	ISO A socket DN12 with GZ M18x1.5 grooved. Push-Pull	-	250
HQ-IA12P-F-15L-B	ISO A socket DN12 with GZ M22x1.5 grooved. Push-Pull	-	250

The ISO-A hydraulic quick coupling socket with shut-off valve and external metric thread is a reliable solution designed for demanding hydraulic systems. Featuring a practical “push-pull” mechanism, it ensures automatic disconnection in case of accidental hose tension, significantly increasing safety and convenience during operation. Engineered for use with hydraulic oil, it is widely applied in agricultural machinery and is commonly recognized as a “euro coupling.” Fully interchangeable with ISO-A quick couplings from other manufacturers, it guarantees compatibility and flexibility across various systems. Manufactured from durable galvanized steel and equipped with NBR sealing, it delivers long-lasting resistance to wear, corrosion, and intensive use. With an operating temperature range from -25°C to +100°C and a working pressure of up to 250 bar, this coupling provides dependable performance even in harsh conditions. A safety factor of 4:1 ensures maximum reliability, while the optimized flow rate, measured at a 3 bar pressure drop, supports efficient hydraulic power transfer. This makes it an ideal choice for professionals seeking robust, safe, and versatile hydraulic connections.