Frarendi - Replacement Trailing Edge Coupons

Frarendi provides an effective, long-term and affordable solution for land-based gas turbine nozzle repair for the power industry. It accomplishes this through a revolutionary replacement trailing edge coupon, breaking the expensive cycle of replacing an entire nozzle when it begins to erode. Since its inception in 1981, Frarendi has been managed by a team of aerospace and power generation industry experts.

TURBINE NOZZLE REPAIR SOLUTIONS

Many companies routinely make cost / benefit decisions to either discard or refurbish components in the turbine’s first stage nozzle, especially nozzle trailing edges. Buying entire replacement nozzle segments can be prohibitively expensive and may require long service outages.

Frarendi’s replacement coupons make it possible to remove and replace the eroded sections of first stage nozzles. The method uses Frarendi trailing edge coupons that match the geometric dimensions and metallurgical properties of the original part. These replacement coupons rival the lifespan of the original parts and extend the life of the entire nozzle, saving significant time and money.

REPLACEMENT COUPON NOZZLE REPAIR PROCESS

The Frarendi repair process emerged in response to early and frequent first stage repairs on turbines in countries where fuel supplies contain high levels of impurities that cause rapid and extensive nozzle erosion and corrosion. A new and more efficient way had to be found to repair nozzles rather than continually buying and replacing them.

The repair process is preferable to welding or purchasing new parts because it is faster, easier, more affordable and durable. Frarendi products enable repair shops to simply cut out and replace old nozzle sections with new pieces, rather than welding the piece or replacing it entirely. Frarendi coupons also deliver the same precision EDM holes as the original parts which cannot be accomplished with traditional weld repairs. All products are made of FSX-414, just like the original parts. No specialized equipment or additional training is needed to make nozzle repairs using the Frarendi replacement trailing edge coupon.

OUR NOZZLE REPAIR METHOD

• The repair shop receives a first stage nozzle with a badly worn trailing edge
• They order a Frarendi replacement coupon for fast delivery, the eroded trailing edge is then cut out of the nozzle
• The new Frarendi trailing edge coupon is welded into place, this results in a first stage nozzle with the life span, durability and reliability of an original component

BENEFITS OF FRARENDI REPLACEMENT COUPONS

The benefits of our product and methods are as follows:

Fast. Total nozzle replacements traditionally take several weeks to arrive at the repair shop, but Frarendi keeps replacement coupons in-stock.

Easy. No special equipment or machinery is required to perform replacements.

Affordable. Frarendi's trailing edge coupons cost far less than total nozzle replacements.

Superior to Welds. Welding the nozzle back into usable form provides only a stop-gap to total replacement. The Frarendi coupon increases the lifespan of the entire nozzle.

Dimensional Control. Frarendi coupons match the geometric and dimensional specifications of original nozzle parts.

Sound Metallurgical Properties. Frarendi trailing edge coupons are made of FSX-414 Alloy to match the metallurgical properties of original parts.

Flexibility. Coupons are sold in sets based upon the number of vanes in a machine—partial sets are available for maximum flexibility. Frarendi will also provide support to any refurbishment facility using its coupons as well as develop and deliver coupons for unique needs.

Wide Product Availability. Frarendi keeps several sets of standard replacement trailing edge coupons in stock at all times. This allows the coupons to be shipped on-demand, resulting in quicker turn-around. The company can deliver in-stock replacement tips in two weeks. Specialty and non-stock replacement coupons have a four to eight week turn-around time.

Frarendi keeps several sets of standard replacement trailing edge coupons in stock at all times. This allows the coupons to be shipped on-demand, resulting in quicker turn-around. The company can deliver in-stock replacement tips in two weeks. Specialty and non-stock replacement coupons have a four to eight week turn-around time.