Is the Adaptor - connecting nut with METRIC thread, carbon steel, type A704 suitable for use with hydraulic systems operating above 200 bar?

Adaptor - connecting nut with METRIC thread, carbon steel, type A704 is described as a high-pressure connecting nut with internal metric threads, made of carbon steel and galvanized. However, the provided description lacks specific pressure ratings, standards (e.g., ISO, DIN), proof/test pressures, and sealing/connection details required to confirm safe use above 200 bar. Carbon steel and galvanization indicate mechanical strength and corrosion resistance, and "high-pressure" suggests it's intended for elevated pressures, but without manufacturer-specified maximum working pressure or certification it is not safe to assume suitability for hydraulic systems above 200 bar. Recommend obtaining the productâs technical datasheet or manufacturer confirmation that lists maximum working pressure, applicable standards, and test results before using the Adaptor - connecting nut with METRIC thread, carbon steel, type A704 in systems operating above 200 bar.

Can the Adaptor - connecting nut with METRIC thread, carbon steel, type A704 be used in corrosive environments after galvanization?

Adaptor - connecting nut with METRIC thread, carbon steel, type A704 Format: The A704 is made of carbon steel and galvanized, which provides a zinc coating that improves corrosion resistance. Galvanization can protect in mildly to moderately corrosive environments (atmospheric, indoor, light outdoor exposure). However, in strongly corrosive conditions (sea water, acidic or alkaline atmospheres, chemical exposure) the zinc layer may degrade quickly, causing corrosion of the base steel. For long-term use in aggressive or marine environments, stainless steel or additional corrosion protection (thicker coatings, epoxy, passivation, or sacrificial anodes) is recommended. Inspect coating integrity after installation and consider environmental specifics before relying solely on galvanization.

What torque specification is recommended for installing the Adaptor - connecting nut with METRIC thread, carbon steel, type A704?

Recommended torque for installing the Adaptor - connecting nut with METRIC thread, carbon steel, type A704 is not universally fixed in the product description; it depends on thread size and application (pressure rating, sealing method, mating component material). However, for carbon steel high-pressure metric threaded connectors of this type, typical installation torque ranges are: - M12: 25â35 Nm - M16: 45â55 Nm - M20: 70â90 Nm - M24: 100â130 Nm - M30: 160â200 Nm These values assume clean, lubricated threads and standard steel mating parts. Always verify exact torque by consulting the manufacturerâs technical datasheet for Adaptor - connecting nut with METRIC thread, carbon steel, type A704 Format or perform a joint-specific calculation considering thread class, surface finish, lubrication, and required preload. If sealing relies on crush washers or soft seals, tighten to the lower end of the range and follow seal manufacturer guidance. Use a calibrated torque wrench and re-check after initial pressurization.

Adapter – coupling nut with metric thread, carbon steel, type A704

All products, High-pressure adapters/

Additional information

Material	CS – steel (cast iron)

Adapter – coupling nut high-pressure type A704 with metric female thread. Material: carbon steel, galvanized.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
TI-A704-10-10	Adapter M10x1 female / M10x1 female	-	400	In stock	Enquiry
TI-A704-12-12	Adapter M12x1.5 female / M12x1.5 female	-	400	In stock	Enquiry
TI-A704-14-14	Adapter M14x1.5 female / M14x1.5 female	-	400	In stock	Enquiry
TI-A704-16-16	Adapter M16x1.5 female / M16x1.5 female	-	400	In stock	Enquiry
TI-A704-18-18	Adapter M18x1.5 female / M18x1.5 female	-	400	In stock	Enquiry
TI-A704-22-22	Adapter M22x1.5 female / M22x1.5 female	-	350	In stock	Enquiry