Partner
Foundry Corporate News Topic Coremaking

How Loramendi and Clow Valve Are Redefining Core-Making for the Waterworks Industry in the U.S.

When Clow Valve Company, a historic manufacturer of hydrants and valves for U.S. water infrastructure, set out to modernize its core-making line, it wasn’t just looking for a machine it was looking for a trusted partner to drive real operational change.

That’s when Loramendi stepped in.

Reading time: min | Bildquelle: Loramendi

The Challenge: Scaling Precision Without Sacrificing Uptime

Clow Valve needed to meet growing demand while upholding the tight tolerances and durability expected of its components. But traditional systems posed real barriers: long changeovers, inconsistent core quality, and sand contamination in guiding zones — undermining both efficiency and consistency.
They needed speed, precision, cleanliness — and above all, reliability.

The Solution: A Smarter, Cleaner, Fully Adaptable Core Making System

Loramendi and Clow Valve worked side by side to implement a fully integrated, turnkey solution — more than a machine, a transformation:

  • A fully automated core making process, from tooling insertion to ejection.

  • Quick change tooling adaptable to both horizontal and vertical core boxes, with 100% automation and no manual interventions.

  • Smart head and mesh change systems for seamless adaptation to different part sizes and geometries.

  • Non-fluidized core shooting technology, achieving optimal compaction with outstanding process stability.

  • Smart sand plant with multi-recipe capability, enabling automatic and intelligent connection with the core shooters. It ensures the best mixing quality on the market through high-precision binder dosing (±0.5%) and offers efficient process control for consistent core quality.


Clean by Design: Where Maintenance Meets Precision
From day one, Clow Valve’s team noticed the difference. The system didn’t just perform — it stayed clean and efficient, cycle after cycle:

  • A dedicated blow plate cleaning system allowed access to nozzles without interrupting production.

  • An integrated sand cleaning system that removes residual sand without dispersing it over the guiding components — protecting them from wear and setting a clear distinction from conventional designs.

  • A vertical box cleaning station, ergonomically designed, gave full access to the tooling and included integrated filters — streamlining maintenance like never before.

The Result: More Than Performance — Peace of Mind
Clow Valve didn’t just achieve higher productivity — it gained:

  • Stability in every shift.

  • Confidence in every core.

  • A solution built for growth.

  • Maintenance cycles dropped.

A Partnership Forged in Real-World Results
This is what Loramendi calls “engineering with purpose.”
By deeply understanding its partner’s environment and adapting every feature to real operational needs, Loramendi didn’t just deliver a machine — it delivered transformation.
Because today, success isn’t about specs. It’s about solving real problems, with real results, for real companies.

A Milestone Event: CastExpo 2025
This story took center stage at CastExpo 2025 in Atlanta, Georgia, where Loramendi shared the results of its collaboration with Clow Valve as a clear example of purpose-driven innovation. The event also marked a special milestone: more than 30 years of Loramendi Inc. supporting customers across North America. It was the perfect setting to connect with industry professionals, showcase real-world solutions, and reinforce Loramendi’s presence as a global leader in core making technology.

Watch the Video

Watch the video below, which highlights how Loramendi’s tailored solutions were brought to life at Clow Valve driving change across the waterworks industry.

Company Info

LORAMENDI S. Coop.

Alibarra, 26 - P.O. Box 614
01010 Vitoria
Spain

Telephone: + 34 945 18 43 00

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