Is the Carbon Steel RDST Adaptor with Metric Male Thread suitable for high-pressure outdoor hydraulic systems and resistant to corrosion?

Yes. The Carbon Steel RDST Adaptor with Metric Male Thread is suitable for high-pressure outdoor hydraulic systems and resistant to corrosion. Its 60° sealing cone and reducing design provide secure, leak-minimizing connections capable of long-lasting performance under high pressure. Made from high-quality carbon steel with a galvanized coating, it offers strong resistance to corrosion, mechanical stress, and wear, making it appropriate for both indoor and outdoor use. Its robust construction ensures reliable operation in demanding hydraulic and industrial environments.

Can the Carbon Steel RDST Adaptor with Metric Male Thread be used with stainless steel fittings without risking galvanic corrosion?

Short answer: Yes — but with precautions. Carbon Steel RDST Adaptor with Metric Male Thread Format is made of carbon steel with a galvanized (zinc) finish, which improves corrosion resistance. When paired with stainless steel fittings, galvanic corrosion is possible because carbon steel (even galvanized) and stainless steel are dissimilar metals in contact with an electrolyte. However, the risk is mitigated by several factors: - Zinc coating acts as a sacrificial layer: it will corrode preferentially, protecting the underlying carbon steel and reducing galvanic action against stainless steel. - Application environment: indoor, dry, or non‑conductive conditions greatly lower galvanic risk. Wet, salty, or continuously humid environments increase it. - Contact area and conductivity: small anodic area (carbon steel) against large cathodic area (stainless) increases corrosion risk. Poor electrical isolation or conductive fluids exacerbate it. - Mechanical protection and seal: the 60° sealing cone and tight assembly reduce electrolyte ingress at the joint. Recommendations: - For intermittent, indoor, non‑corrosive applications, the adapter with stainless fittings is generally acceptable. - In aggressive, marine, or constantly wet environments, add insulation (non‑conductive seals, PTFE tape, dielectric sleeves), use compatible coatings, or choose a stainless steel adapter to eliminate galvanic concerns. - Inspect periodically and consider sacrificial anodes or corrosion inhibitors if risk is significant. Conclusion: Carbon Steel RDST Adaptor with Metric Male Thread Format can be used with stainless fittings if environmental conditions and protective measures are considered; for high‑risk environments, prefer matching stainless components.

Carbon Steel RDST Adaptor with Metric Male Thread

All products, Low-pressure fittings and adapters/

Additional information

Material	CS – steel (cast iron)

The RDST type adapter is a reliable and durable solution designed for demanding hydraulic and industrial applications. Featuring an external metric thread and a reducing function, it ensures precise and secure connections even in complex systems. The 60° sealing cone provides excellent tightness, minimizing the risk of leakage and guaranteeing long-lasting performance under high pressure. Manufactured from high-quality carbon steel and finished with a galvanized coating, the adapter offers outstanding resistance to corrosion, mechanical stress, and wear, making it suitable for both indoor and outdoor use. Its robust construction and carefully engineered design allow for easy installation, compatibility with a wide range of components, and consistent efficiency in operation. This adapter is an ideal choice for professionals seeking a dependable, cost-effective, and high-performance connector that enhances system safety and reliability.

List of product variants

Article number	Product variant name	Nominal inner diameter	Working pressure [bar]
EC-122050	Adaptor RDST with GZ M8x1 / GZ M10x1, 60° cone	-	30
EC-122052	Adaptor RDST with GZ M10x1 / GZ M12x1.5, 60° cone	-	30
EC-122054	Adaptor RDST with GZ M12x1.5 / GZ M14x1.5, 60° cone	-	30
EC-122060	Adaptor RDST with GZ M14x1.5 / GZ M16x1.5, 60° cone	-	30

The RDST type adapter is a reliable and durable solution designed for demanding hydraulic and industrial applications. Featuring an external metric thread and a reducing function, it ensures precise and secure connections even in complex systems. The 60° sealing cone provides excellent tightness, minimizing the risk of leakage and guaranteeing long-lasting performance under high pressure. Manufactured from high-quality carbon steel and finished with a galvanized coating, the adapter offers outstanding resistance to corrosion, mechanical stress, and wear, making it suitable for both indoor and outdoor use. Its robust construction and carefully engineered design allow for easy installation, compatibility with a wide range of components, and consistent efficiency in operation. This adapter is an ideal choice for professionals seeking a dependable, cost-effective, and high-performance connector that enhances system safety and reliability.