3 Options for Repairing Your Knife Gate Valve

If asked to describe the ideal qualities of a knife gate valve, odds are you’d use words like “strong” and “resilient.” And you’d be right.

But even the best knife gate valves wear down over time. Charged with constantly facing high PSIs as they cut through and hold back heavy liquids, the need to replace a knife gate valve is inevitable.

Not so inevitable, though: the cost, turnaround time, and downtime associated with replacing a knife gate valves.

But if you select the right process for knife gate valve repair and replacement, your enterprise might be able to reduce expenses typically associated with the effort.

To help, here are three options available today for repairing your knife gate valve.

Approach 1: Traditional Knife Gate Valve Repair
With this approach, replacing a knife gate valve requires shutting down the affected fluid line, removing the valve and ordering a new one, and installing the new valve before finally turning the fluid line back on.

Potential downsides: This approach means potential delays during the preparation of a purchase order and/or bidding process.

Approach 2: Doubling Up Knife Gate Valve Costs
This approach may take as long and incur more significant expense. It involves:

Shutting down the affected fluid line
Removing the problematic valve
Ordering a new valve
Taking receipt of and installing the new valve
Taking receipt of the refurbished valve once work on it is complete and storing it

Potential downsides: There’s a higher initial cost thanks to doubling up on both the new valve and the faulty valve’s refurbishment. Storing the refurbished valve once it comes back — a repair process that, depending on the company, can take as long as 6-8 weeks — also means expenses related to reserving on-site space.

Approach 3: Knife Gate Valve Convenience
This approach minimizes the length of time between removing the faulty knife gate valve and receiving its replacement. That’s thanks to a lower required purchase order (just 50%) before the supplier sends a new valve to the site. This can mean notably decreased downtime.

Meanwhile, the supplier repairs the faulty knife gate valve and keeps it at their location. The mining site doesn’t need to worry as much about managing inventory and incurring related costs. When a different knife gate valve fails, the vendor dispatches the repaired model overnight. The mining company sends over the faulty one for repair and the money- and time-saving cycle continues.

Potential downsides: Only one supplier offers this approach.

Consider the Arnett Approach

Arnett provides the “convenience” approach exclusively to our partners. Why? Because we recognize how important speed is for our clients. Lost time for them equals lost money. So when they need a new or specially refurbished pump or valve, we have it on hand for them and can put it in their hands — anywhere in the country — in about a day.

If you want to learn more about what we call our AVX (Arnett Valve Exchange) program, contact us today. We’re thrilled to welcome new partners into the program and help ensure reduced knife gate valve and inventory costs.

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