KTR FLENDER N-EUPEX A+ 90 Pin Coupling — Extended Service Life Design

KTR FLENDER N-EUPEX A+ 90 Pin Coupling — Extended Service Life for Long-Duration Saudi Heavy Industry

The KTR FLENDER N-EUPEX A+ 90 is the extended-service-life version of the N-EUPEX pin coupling — featuring larger diameter pins and reinforced rubber bushings that provide 2x the service life in continuous-duty heavy industrial applications.

SABIC affiliates using N-EUPEX A+ 90 on large process pump drives report 4–6 year coupling replacement intervals vs. 2–3 years for standard pin couplings — significant maintenance cost reduction in large plants with 50+ process pumps each.

Product Specifications

Manufacturer: KTR (FLENDER brand). Torque: 450–1,000 Nm. Design: Reinforced pin and bushing (A+ version). Hub: nodular cast iron. Bore range: 25–85mm. Max speed: 4,200 RPM. Service life: 2x standard N-EUPEX.

Frequently Asked Questions

Q1: A+ version is approximately 30–40% higher cost but delivers 2x the service life — net cost per year is lower. RAZZ recommends A+ for continuous-duty critical applications.

Q2: Yes — ATEX Zone 1, 2, 21, 22 versions available for hazardous area process pump applications.