Since 1987, ValvTechnologies has manufactured state-of-the-art integral metal-seated valves for the power and process industries. The process industry demands high quality, severe service isolation valves that protect equipment, environment, and personnel. These demanding environments consist of erosive, corrosive, high temperature, and high pressure process flows. When zero-leakage is required in such environments, the petrochemical industry requires the best available technology: ValvTechnologies.
All manufacturing occurs in our ISO 9001 certified facility in Houston, TX. Our in-house proprietary RiTech® carbide coatings are a key part of ensuring outstanding performance. This fully automated process is performed in our very own state-of-the-art, climate controlled HVOF booths. Having this technology under our control and QA/QC oversight allows ValvTechnologies to provide a consistent, high quality package at a very competitive price.
Our experience in petrochemical plants extends around the world and includes numerous innovative valve designs specifically engineered for a particular application. A key advantage of our isolation valve design is that the ball is “fixed” in place with a highly loaded Belleville spring. This feature allows the valve to operate in the presence of polymer with the ability to shear through solid plugs. Unlike most valve designs, the zero-leakage carbide seat is actually part of the valve body, thereby keeping solids from interfering with the valve’s ability to operate and provide zero-leakage.
We have numerous valves in operation that have achieved over 1,000,000 cycles between maintenance cycles. In most polymer applications, 1,000,000 cycles is a common occurrence.
Repeatable tight shutoff in all normal operating and upset conditions
Operates in the presence of solids and polymers
Control and bubble-tight isolation in one valve in high Delta-P applications (furnace vents)
Line-size flow capacity for minimum pressure drop (full port)
Safe isolation of control valves, heat exchangers and other critical process equipment
Available in sizes from 1/2 – 36 “
No limitation on rate of heating and cooling to allow process optimization
Certified (TA LUFT, ISO5804, EPA) low fugitive emissions
Predictable torque requirements over the service life of the valve
Adaptable to all industry standard actuation and control systems
Double-block-and-bleed and special configurations available
Unaffected by high operating temperatures and environments
Integral purging systems when required
Will shear solid polymer plugs and continue to seal bubble-tight
1,000,000+ cycles between maintenance on valves configured for this service
Unaffected by process – metal seats will not be damaged due to chemical attack or polymer adhesion
Capable of high-speed cycling for process control
Reliable emergency shutdown
Simplicity by design: Seat supported design has only four moving internal components
Numerous standard options available depending on operating requirements:
Integral heating jackets
Integral low-flow purging systems with single connection point
Cavity fillers to eliminate “dead” areas in the valve
Oversized actuation for reactive systems
Standard repair kits available for high cycle valves
Flange configurations and face-to-face dimensions to meet existing unit dimensions
Extremely low cost of ownership
Engineered solutions for specific process requirements
Metals and coatings (when required) tailored to the operating conditions
Bubble-tight shut-off on small molecule gases (ie. hydrogen, helium, nitrogen and oxygen) with metal seals
Valve performance is unaffected by solids. Special internal configurations are available for slurry service
Available for operating temperatures up to 1400°F and rapid thermal flux
Proven designs in nickel and cobalt alloys
Designed from “scratch” for severe-service – not adapted from commodity design
NexTech® design is the only trunnion – mounted ball valve in the world with high temperature, solids resistant gland system for minimal fugitive emissions
Actuation systems can be replaced / repaired without removing the valves from the system
Fully welded-in designs available for lower cost and further reduced possibility of emissions
Gear operators standard on 2″ manual valves and larger to allow ease of cycling without deflection of valve stem
Industry-standard mounting for pneumatic, electric or hydraulic operators.
ValvTechnologies’ Success Stories
ValvTechnologies’ case studies depict how we have successfully helped companies around the globe manage their complex severe service applications.