Parkrimp 77 hydraulic fittings for high-pressure applications

Parkrimp 77 is Parker Hannifin's one-piece fitting series for high-pressure applications. The series is developed for use with Parkrimp crimpers and GlobalCore hoses, giving you a consistent, leak-free assembly with minimal pressure and heat loss. All GlobalCore products meet or even exceed the international standard ISO 18752.

The one-piece design provides better flow and fewer sources of error, and the no-skive technology removes the need to skive the hose – it is faster, safer and more stable in operation.

Series 77 hose fittings are one of our popular fitting series, and therefore part of the Hymatik Selected product range.

Benefits in operation and assembly

Easy and fast assembly: the Parkrimp system ensures correct crimping every time
Safety and uptime: leak-free design minimises unplanned downtime
Efficiency: optimised flow reduces pressure and heat loss
Flexibility: broad range in steel and stainless steel as well as several connection types
GlobalCore compatible: consistent pressure ratings and specifications across hoses and fittings – meaning that e.g. hose 797TC-XX has the same pressure from 1/4" to 2", namely 420 bar in all dimensions.

Features and applications

Pressure and dimensions

Constant working pressure: 35,0 MPa or 42,0 MPa (depending on hose choice and size)
Sizes: 1/4" to 2"

Materials and connections

Materials: steel and stainless steel
Connection types: JIC, NPTF, BSP and more

Standards and compatibility

System: Parker GlobalCore
Standard: meets/exceeds ISO 18752 (via GlobalCore)
Compatible hoses: 387, 487, 787 and 797 – as well as in all cover types such as TC (Tough Cover) and ST (Super Tough)

Typical applications

Mobile hydraulics: construction machinery, agriculture, material handling
Industry: presses, injection moulding machines, production lines
Offshore and marine: where corrosion resistance and high safety are required
Energy and utilities: pumps, hydraulic power units and test equipment

See series 77 here

Frequently asked questions (FAQ)

What does no-skive mean? No-skive means that you do not remove the outer rubber cover before crimping. This makes assembly faster and safer – and reduces errors.

Can I use Parkrimp 77 with hoses other than GlobalCore? The 77 series is developed for Parker's hoses, especially GlobalCore. For optimal performance and safety, we recommend the stated compatible hoses (387, 487TC, 787, 797) and the Parkrimp crimper.

Which material should I choose? Choose steel for standard applications. Choose stainless steel in corrosive environments, offshore/marine or where hygiene requirements are high.