Is the Walterscheid™ GAI-B Carbon Steel Nut Fitting compatible with both metric external threads and internal BSP threads across Eaton Walterscheid systems?

Yes. The Walterscheid™ GAI-B Carbon Steel Nut Fitting is designed with an external metric thread and an internal BSP thread, per the DIN 2353 Eaton Walterscheid™ GAI-B specification. This dual-thread configuration ensures compatibility across Eaton Walterscheid systems that use metric external threads or internal BSP threads. Available in both L (light) and S (heavy) series and made of carbon steel with Guardian Seal™ galvanic coating, it provides durable, corrosion-resistant, leak-free connections suitable for standard and high-pressure hydraulic applications.

Does the Walterscheid™ GAI-B Carbon Steel Nut Fitting require different installation torques for L (light) versus S (heavy) series?

Walterscheid™ GAI-B Carbon Steel Nut Fitting does not inherently require different installation torques for the L (light) versus S (heavy) series in the product description provided. Both series share the same 24° socket geometry, external metric thread and internal BSP thread form, material (carbon steel) and Guardian Seal™ coating, so the fundamental tightening principles and target torque ranges are expected to be the same. However, because the S (heavy) series is intended for more demanding, higher-pressure applications, installers should consult the manufacturer’s specific torque recommendations or assembly guidelines for each series and for the particular hose/connector combination being used. Differences in wall thickness, thread engagement, mating component material, seal type, or system pressure can affect optimal torque. When in doubt, follow Eaton/Walterscheid official installation data or torque charts to ensure proper sealing without overstressing components.

Walterscheid™ GAI-B Carbon Steel Nut Fitting

Additional information

Material	CS – steel (cast iron)

The DIN 2353 Eaton Walterscheid™ screw connection, type GAI-B, is a high-performance 24° socket designed with an external metric thread and an internal BSP thread, ensuring reliable compatibility across a wide range of hydraulic applications. Available in both L (light series) and S (heavy series), it offers flexibility to meet diverse system requirements, from standard installations to demanding high-pressure environments. Manufactured from robust carbon steel and enhanced with the advanced Guardian Seal™ galvanic coating, it delivers outstanding resistance to corrosion and wear, significantly extending service life even under challenging operating conditions. This precision-engineered connection guarantees secure, leak-free performance, making it an ideal choice for industries where safety, durability, and efficiency are paramount. With its proven Eaton Walterscheid™ quality, the GAI-B fitting provides a dependable solution that supports optimal system reliability and reduces maintenance costs, ensuring long-term value for hydraulic and fluid transfer systems.

List of product variants

Article number	Product variant name	Nominal inner diameter	Working pressure [bar]
HD-GAI-06L-B-02-W	Walterscheid fitting DIN 2353 GAI 6L 1/8" BSP	-	250
HD-GAI-06S-B-04-W	Walterscheid fitting DIN 2353 GAI 6S 1/4" BSP	-	630
HD-GAI-08L-B-04-W	Walterscheid fitting DIN 2353 GAI 8L 1/4" BSP	-	250
HD-GAI-08S-B-04-W	Walterscheid fitting DIN 2353 GAI 8S 1/4" BSP	-	630
HD-GAI-10L-B-04-W	Walterscheid fitting DIN 2353 GAI 10L 1/4" BSP	-	250
HD-GAI-10S-B-06-W	Walterscheid fitting DIN 2353 GAI 10S 3/8" BSP	-	630
HD-GAI-12L-B-04-W	Walterscheid fitting DIN 2353 GAI 12L 1/4" BSP	-	250
HD-GAI-12L-B-06-W	Walterscheid fitting DIN 2353 GAI 12L 3/8" BSP	-	250
HD-GAI-12S-B-06-W	Walterscheid fitting DIN 2353 GAI 12S 3/8" BSP	-	630
HD-GAI-15L-B-08-W	Walterscheid fitting DIN 2353 GAI 15L 1/2" BSP	-	250
HD-GAI-16S-B-08-W	Walterscheid fitting DIN 2353 GAI 16S 1/2" BSP	-	400
HD-GAI-18L-B-08-W	Walterscheid fitting DIN 2353 GAI 18L 1/2" BSP	-	160
HD-GAI-20S-B-12-W	Walterscheid fitting DIN 2353 GAI 20S 3/4" BSP	-	400
HD-GAI-22L-B-12-W	Walterscheid fitting DIN 2353 GAI 22L 3/4" BSP	-	160
HD-GAI-25S-B-16-W	Walterscheid fitting DIN 2353 GAI 25S 1" BSP	-	400
HD-GAI-28L-B-16-W	Walterscheid fitting DIN 2353 GAI 28L 1" BSP	-	100
HD-GAI-30S-B-20-W	Walterscheid fitting DIN 2353 GAI 30S 1.1/4" BSP	-	250
HD-GAI-35L-B-20-W	Walterscheid fitting DIN 2353 GAI 35L 1.1/4" BSP	-	100
HD-GAI-38S-B-24-W	Walterscheid fitting DIN 2353 GAI 38S 1.1/2" BSP	-	250
HD-GAI-42L-B-24-W	Walterscheid fitting DIN 2353 GAI 42L 1.1/2" BSP	-	100

The DIN 2353 Eaton Walterscheid™ screw connection, type GAI-B, is a high-performance 24° socket designed with an external metric thread and an internal BSP thread, ensuring reliable compatibility across a wide range of hydraulic applications. Available in both L (light series) and S (heavy series), it offers flexibility to meet diverse system requirements, from standard installations to demanding high-pressure environments. Manufactured from robust carbon steel and enhanced with the advanced Guardian Seal™ galvanic coating, it delivers outstanding resistance to corrosion and wear, significantly extending service life even under challenging operating conditions. This precision-engineered connection guarantees secure, leak-free performance, making it an ideal choice for industries where safety, durability, and efficiency are paramount. With its proven Eaton Walterscheid™ quality, the GAI-B fitting provides a dependable solution that supports optimal system reliability and reduces maintenance costs, ensuring long-term value for hydraulic and fluid transfer systems.