Valve Trim Parts
VALVE TRIM INDUSTRIES’ expertise is in the manufacturing and rebuilding of severe-service valve components. For over 50 years we’ve set the industry standard in producing congruent O.E.M. valve trim parts such as plugs, stems, cages, seats, bonnets and guide bushings for virtually every control valve manufacturer in all shapes and sizes. We can reverse-engineer any valve part, new or used, with our hi-tech CMM equipment. VTI stocks a wide range of mill-certified metals and alloys such as multiple varieties of stainless steel, Inconel®, Hastelloy® and tungsten-carbide. Our in-shop capabilities range from state-of-the-art CNC machining to precision grinding to hard surfacing and specialty coatings such as Stellite® overlay, Ion-Nitride, precision heat-treatments and HVOF. VTI can apply hard-facing on all critical areas such as seated and wear locations to extend the user-life of your valves. This hard surface provides protection against cavitations, flashing / erosion, vibration / noise, turbulence, corrosion and abrasion that can so often occur. VTI also prides itself on providing emergency services and exceptionally fast delivery for new parts and repairs, especially during forced outages. If you have a valve question or need support, please call one of our technical sales reps for immediate assistance. Provided below is a gallery of actual components that VTI has manufactured new replacement parts for or has completely refurbished.
Disk Stack Repairs With Micro-Welding
Pictured is a multi-stage disk stack that has been pulled out of service. Most plants throw these away and are forced to purchase new ones from the OEM, not knowing VTI has the experience and ability to refurbish them.
VTI specializes in a rare, state-of-the-art overlaying process called ‘Microscopic-Welding’. By utilizing this precise technique for repairs, it allows plants to spend a fraction of the money and time required by the OEM to supply new parts.
Taking a close look at the super-fine Inconel® weld-beading in this picture helps valve maintenance machinists and mechanics alike better appreciate the precision and quality of VTI disk stack repair techniques.
After micro-welding and precision CNC machining, the final product speaks for itself. All parts are carefully inspected by our engineers before released with approval.
Plasma Transfer Arc (PTA) Hard-Face Weld Overlay
Plasma Transferred Arc (PTA) is a high energy, inert gas welding process. Argon is used for arc plasma supply, powder transport and molten material shielding. It produces a very high-quality deposit offering optimal protection with minimal dilution or deformation of the base material. It is a process that deposits very precise coatings of perfectly controlled alloys on mechanical parts that are subject to intense wear, significantly extending their service life. PTA technology is particularly effective in protection against corrosion, thermal shock and abrasion. A wide range of overlay alloys is available for practically any part. Some alloys are very hard, others are softer with hard abrasion-resistant particles dispersed in a matrix. PTA can be used perform butter-coats for controlled heat rate of expansion protection, as well as hard-facing prior to finish machining. Certain alloys are made to rebuild a part to a required dimension while others are designed to be a final overlay that protects the work surface.
Click Video to watch PTA Weld-Overlay in Action!
PTA Welding Machine Custom Manufactured by Stellite Coatings
PTA Weld-Overlay on a Turbine Bypass Plug
PTA Weld-Overlay Repair on a Stop-Check Valve
Precision Reverse Engineering
Reverse engineering is a dedicated and precise process that Valve Trim Industries uses to create a 3-Dimensional surface drawing or solid model of an existing part. These drawings can then be used to modify the existing part or to machine a new one to OEM form, fit and function size. The data collection process is accomplished by utilizing the following methods:
- CMM inspection
- Optical digitizing
- Physical measurement
- NDE Testing
- Laser Inspection
The collected data is then processed using high-tech software programs to prepare it for integrating into a CAD model. The finished CAD is then detailed or modified to the customer’s specifications and design enhancements. Finally, it is prepared for converting to Master-CAM and processed for manufacturing.
Coordinate Measuring Machine (CMM)
Portable 3-D Digital CMM
Non-Destructive Alloy Analyzer
CAD to CAM Technology
Turbine Valve Parts & Repair
Valve Trim Industries has been manufacturing turbine valve replacement parts for over 50 years. We use only the highest quality of hard surfacing materials and gas nitride equipment to ensure our products leave our shop equal to or exceeding the OEM’s specifications. Over the years we’ve serviced components for industrial plants all over the world and have experience manufacturing parts for virtually every type and size unit, including General Electric, Siemens-Westinghouse, Toshiba, Alstom, ABB, Hitachi and Mitsubishi. We can upgrade design flaws and incorporate material improvements. The result is longer service life and less maintenance expense. With many years of in-house engineering experience and a vast parts database, VTI is your best source for valve components. We offer inspection, repair, restoration and upgrades for many types of valves such as main-stop, reheat, intercept, ventilator, blowdown, boiler-feed pump start-up, equalizer, control and governor. With our state-of-the-art machining capabilities, there’s not a valve component that we can’t handle. VTI’s impeccable services are built on quality control, lowering costs and improving delivery times to our customers so they don’t have to settle for overpriced OEM rates and extensive part arrival dates. These are common turbine valve parts we can supply:
VALVE INSPECTION & REPAIR PROCESS
D-11 & A-10 Turbine Valves
Valve Trim Industries specializes in reverse-engineering, design, and manufacturing of parts as an alternative to the OE. Our guaranteed aftermarket parts save customers substantial amounts of money. Let us increase your margins by replacing your machine’s OEM parts with aftermarket parts manufactured by VTI . We can provide repairs and replacement parts for your D-11 & A-10 valves:
MSV / CV Configurations
D11: 2 x 7″, 2 x 9″, 2 x 11″
A10: 1 x 9″
CRV Configurations
D11: 2 x 20″
A10: 2 x 16″
D-11 Valve Parts Manufactured
Gas Turbine and Steam Turbine Components
Whether a planned or forced outage, minor or major overhaul, combustion or hot-gas-path inspection, or replenishing spare parts, VTI can supply a wide range of critical components for your project. We provide hard-to-source items and manufacture parts with OEM materials, including advanced coating technology with rapid turnaround. Whether a single item or complete overhaul list, contact us to discuss all your part needs.
OEM’s
Types Of Units
Turbine Parts
