The trunnion-mounted ball design includes a straight polygon stem-to-ball connection that reduces try and offers more effective torsion transmission. Polished stalk and coat options offered on balls and seats prevent extensive wear and erosion, which could cause torsion spikes. The singular seat geometry creates a scraper self-cleaning effect, protecting the area behind the seat. Krombach ’ s TUFSEAT Performance Series Valves offer a standard scraper seat design, and a high-temperature scraper seat design, which includes an extra wiper ring that stops media particulates from collecting behind the seat and around the seat spring. This design prevents media from packing into the spring cavity behind the seat, thus preventing valve lock-up that results in reduce seat compression and inline escape that ultimately causes the valve to stop functioning. These components are besides protected by an “ S ” shaped accompaniment ring that minimizes the trespass of solids and protects the graphite seal from over compaction in the consequence of overturn conditions. Seats with graphite windshield wiper rings are available as an choice for abrasive services, catalysts, slurries, and other syrupy fluids. The graphite rings protect internal components from coming in contact with solids, therefore preventing seizing and extending the life of the valve. The unique seat system engineering takes advantage of the elasticity of the graphite seal behind the seat and combined with metallic wave springs, ensures consistent contact atmospheric pressure between the seat and the ball, autonomous of the operate pressure or temperature, for both trim versions. Valves operating in these demand applications are normally required to withstand gamey torsion ; so far, the Krombach ’ s TUFSEAT Performance Series Valves were designed to require torsion levels that are among the lowest in the industry, even while delivering the highest seat leak and fleeting emissions operation, extending the service life of the valves adenine well as aide equipment. Machine Lapped Seat and Ball With a seat and ball that are amply car lapped, with accurate tolerances not accomplishable through hand lap, Krombach ’ s TUFSEAT Performance Series Ball Valves ensure near-perfect match and optimum contact between testis and seat. This advance mastermind means that these valves outperform Class V or VI seat leak standards, bi-directionally, even at elevated pressures and temperatures. Live-loaded seats can offset temperature swings ensuring that coherent contact atmospheric pressure is maintained, without sacrificing shut-off performance at lower torsion. Innovating on features and designs developed through 40 years of engineering expertness, these valves incorporate state-of-the-art engineering to offer the best seat escape performance at a across-the-board roll of differential pressure and temperature over an run number of cycles, even in the presence of slurry media. To address high-cycle, high-torque automated applications and applications with erosive solids that demand superior seat leak performance, these new alloy seated ball valves were developed with two reduce options ( floating ball and trunnion designs ) that meet Class V seat leak up to 500oF and Class VI seat leak up to 800oF, with API 641 and ISO 15848-1 FE certifications. With the commercialize demanding reputably manufactured ball valves for hard service applications at cost-competitive price points with lower star times, Krombach ’ s TUFSEAT Performance Series MSBV was designed to meet demand expectations, covering a wide align of application conditions without the want to customize every valve — all while remaining configurable .
Testing and Certifications
Krombach’s TUFSEAT Performance Series Ball Valves are designed to face up to the toughest challenges, and Crane put them through rigorous testing to demonstrate their performance in the toughest applications.Fugitive emissions and seat leak performance were of critical importance while designing the valve, and 62 certification and performance tests were completed for various sizes and pressure ratings.
Krombach ’ s TUFSEAT Performance Series Ball Valves are designed to face up to the toughest challenges, and Crane put them through rigorous testing to demonstrate their performance in the toughest applications.Fugitive emissions and seat leak performance were of critical importance while designing the valve, and 62 authentication and performance tests were completed for diverse sizes and pressure ratings. Service Life in Slurry Applications
In a closed-loop system, with 60 m3/h of slurry with 10 % solids containing highlyerosive foundry sandpaper, florida owing at a fluid speed of 3.6 m/s, the valve continued to perform at Class V seat escape even after 1,500 cycles at 6 cake, with the operating torsion remaining stable, and all soft seals in good condition.
Seat Leak Performance
The valves routinely outperformed standards that were set and advertised. When seat leak operation was evaluated, the valves were designed to meet either Class V or Class VI, but systematically performed much better. FCI 70-2 standards specify seat escape performance at 3.5 legal profession entirely, at ambient temperature. actual test results show valves intended to perform at Class V, actually exceeding Class VI performance benchmarks up to 10 measure, even performing within Class V standards at 50 bar .
In field applications, this operation means that customer expectations are surpassed, service life is greatly increased before these valves have to be repaired or replaced due to excessive escape .
once fleeting emissions and seat leak operation were achieved, the focus was on minimizing operational torsion and maintaining a reproducible torsion careless of the imperativeness and temperature to minimize disruptions in the process due to failure of components in the drive discipline .
In torsion tests excessively, at unlike pressures and temperatures, Krombach ’ s TUFSEAT Performance Series Valves demonstrate some of the lowest torsion requirements in the diligence that about perfectly match theoretically calculated torsion used to recommend actuator and gearbox sizes, which will result in longer valve and auxiliary equipment life .
When it came to fugitive emissions, the set goal was to achieve BH escape levels with CO2 endurance ( 1500 mechanical cycles ). Again, all valves in the portfolio outperformed their targets, performing to AH levels for CO1 endurance ( 210 cycles ), and well achieving BH-CO3 endurance horizontal surface ( 2500 cycles ). All of this was achieved without bonnet extensions or similar features that could add large costs to initial investments while trying to get systems to meet important fugitive emissions performance standards.
Because the TUFSEAT by Krombach® Performance Series Valves were designed and developed as a complete portfolio of products, every valve in the series is in full certified .
From ISO 9001 choice and ISO 5211 actuator mounting to API 608 and ASME B16.34 ; EN 1983 valve invention, and API 607 fi ra condom standards to ISO 15848, Class BH, level CO3, and API-641 for fugitive emissions and escape as per FCI 70-2 Class VI or Class V ( tested to API-598 ), all valves in the series are covered .
The TUFSEAT by Krombach® Ball Valve is besides SIL 3 certified by IEC 61508. This certification serve conducted by Exida included a wide exploitation procedure evaluation, considering prototype test on newly developed valve models a well as historic performance of early metallic element seated ball valves designed and manufactured by Krombach. detail failure Modes, and Diagnostics Analysis ( FMEDA ) and a exhaustive review of the fabrication timbre system factors used by Crane across all plants were besides considered .
nation and region-specific certifications like CE-marking according to DGRL 2014/68/EU and CRN ( Canada ) have already been granted .
All of the new Krombach ’ s TUFSEAT Performance Series valves meet all these certifications, without the need for customization or added features.
Why Choose the Krombach TUFSEAT Performance Series?
Krombach ’ s TUFSEAT Performance Series offers many high-end features as standard, including fewer variations in the series, which makes for a more cost-competitive offer with easier handiness and shorter head times, while however offering customization options, if needed .
The Krombach ’ s TUFSEAT Performance Series Valves were designed to perform in a wide scope of application conditions without the need for customization. With the standard pare, applications with less than 10 % content of solids, and operating temperatures under 500oF, can be serviced .
For applications with higher solid capacity and manoeuver temperature up to 800oF, the high-temperature trimming choice is available .
These valves offer dependable near zero-leakage performance in critical process applications, steamer isolation, and temperature extremes. They can be used in a wide range of applications, from systems dealing with caustic solids and slurries to high viscosity and awkward fluids, while meeting rigorous demands thanks to their promote engineered induct seal system .
Designed for applications that require broad run with the highest possible one hundred five in the market, these valves feature quarter-turn operation for easily automation and fully-protected metallic element seats that are not exposed to the media either in the outdoors or close put. This level of protection makes them best suited for all refine applications that contain solid debris or catalysts built-in to the process, such as crude atmospheric and void tugboat bottoms, FCCU and CCR units, or even wastewater applications .
By meeting ISO 15848 and API 641 without the addition of packing rings or excessive stiffen of packing glands, these valves maintain lower operating torques. This gives the end customer a double benefit, helping them meet rigorous government fleeting emissions requirements while allowing price savings thanks to smaller gear boxes or automation packages .
The full-bodied tug educate and ISO mounting diggings available in all sizes make it an excellent choice for automated applications with high mechanical or thermal cycles such as in polyethylene, polypropylene, polycarbonate, BPA, and similar applications in petrochemical units .
Designed to prevent gluey fabric from penetrating the spring cavity and causing the valve to lock up, the natural self-cleaning scraping design keeps media off the face of the ball and induct and pushes it downriver. This is specially beneficial for polymer output applications .
other chemical work applications for Krombach ’ s TUFSEAT Performance Series Ball Valves include MDI, PMDI, EDC/VCM, polysilicon, and slurry services. In the petrochemical world, these valves can be used in production of poly-ethylene, polypropylene, ethylene, ethylene oxide ( EO ), and polycarbonates .
Hydrocracking, reforming and catalytic applications ( FCCU/CCR ), hydrogenation, and delayed cook are applications that these valves are suited for, in the polish sector.
From mining to pulp and newspaper or other recess applications including gram molecule sift accelerator process and dehydration, food and fragrances industries, and melted gases and steam, Krombach ’ s TUFSEAT Performance Series Ball Valves can take on the toughest challenges with ease .
Solving Customers’ Toughest Challenges
Crane ChemPharma and Energy, a segment of Crane Process Flow Technologies is dedicated to invention and committed to exceeding expectations with the highest dependability .
The Krombach ’ s TUFSEAT Performance Series is testament to this, with its advanced technology and design initiation that outperforms standards, and delivers in the most severe applications — Solving Customers ’ Toughest Challenges .