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The Duball DL is a high-performance, metal-seated, full-bore ball valve, equally suitable for isolation, on-off and modulating control applications. The excellent characteristics of NAF Duball DL are particularly beneficial under the most challenging operating conditions in the process industry, where difficult media and demanding pressure conditions make severe demands on the design, materials and performance.
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Valbart designed the Trunnion Mounted Control Ball Valve (TMCBV) to operate at high pressures while minimizing the torque needed to operate the valve. The spring-loaded, process energized seats offer tight (Class IV and Class V) shutoff at any pressure. In most cases, the TMCBV's capacity is greater than that of a comparable globe valve. This allows the customer to use a smaller, lighter valve and experience cascading savings. This valve also requires a smaller, less expensive actuator and less expensive pipe supports.
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The NAF Setball for Middle Consistency (MC) pulp is a ball sector valve with metal-to-metal seating and combines the best control characteristics of the ball valve and the butterfly valve. It can be used both as control valve and as shut-off valve and is available in flanged version. This valve type is developed for MC-pulp 8-19%. It has an enlarged outlet with one size bigger flange on the outlet to get an excellent flow characteristic for the MC-pulp out of the valve. It is available as standard in 1.4408/CF8M, CG8M and SMO254.
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Setball Segmented Ball Valves are cost-competitive general service valves that offer excellent rangeability and high-flow capacity. NAF Setball can be used in a wide variety of applications and meets the highest demands for control accuracy provided by the equal percentage characteristic and the splined connection between shaft and sector.
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The Valtek ShearStream is a segmented, ball control valve that provides exceptional control and rangeability for the process industries. Designed to overcome the problems of harsh, particle entrained processes, ShearStream also provides accurate, reliable control in a broad range of applications, such as chemical, power and petroleum.
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The HPFlow is designed for high pressure applications up to 60,000 psi for very special needs. With the unique split body design it is possible to clamp the seat in between the body parts to handle these extreme pressure ratings. In combination with high pressure there is very often the need to handle also high diferential pressure. In this case the HPFlow series offers an axial multi-stage trim design.
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SideWinder trim prevents cavitation from forming and minimizes hydrodynamic noise in high pressure drop, low flow applications. Staged pressure drops eliminate cavitation by maintaining pressure above the vapor pressure, so that cavitation never forms. Using the proven DiamondBack advanced pressure drop mechanisms in an axial flow configuration producing precise control in low flow conditions.
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Multi-Z valves are used if solids are entrained in the medium and if there is a possibility of cavitation forming. In addition this multiple stage valve is capable of reducing high-pressure differentials via a multiple stage relief process. Flowserve reduces pressure via division in partitions, a course which is different to that pursued by other suppliers. The major advantage is a noticeable reduction in wear combined with an extremely low-noise control valve. Likewise deviating from conventional procedures, in order to avoid cavitation a physically optimized technology has been implemented that achieves significantly better results.
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DiamondBack trim prevents cavitation from forming and minimizes hydrodynamic noise even in the most challenging liquid applications. Staged pressure drops eliminate cavitation by maintaining pressure above the vapor pressure, never allowing cavitation to form. DiamondBack combines new advances in pressure drop management with previously proven technologies to create the most effective device capable of eliminating cavitation in the most demanding services.
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The FK76C split-body, full-bore, trunnion-mounted ball valve represents the highest standards in valve technology. Its superfine finished, trunnion-mounted ball design is just one of its many important design features. Among them are an anti-blow out stem,long-life, double-stem seal system and stem supported in bearings to ensure seals are free from operation loads.
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The Kammer TotalFlow (Series 035000 & 335000) is a general service valve portfolio designed to include special configurations. Designed mainly in special materials such as Hastelloy, Alloy 20 or other rare materials, the TotalFlow becomes the solution for your application in any pressure class up to CL2500. For pressure classes up to CL600 it is also available in stainless steel or carbon steel. The series is available as ANSI or DIN and in globe, angle or 3-way valve design. It is a perfect extension to Flowserve‘s FlowTop General Service valve series.