SchuF > www.schuf.com Engineered Control Valves

Features The trim is single or multi-stage, with flow toopen or close. On/off, hollow piston and cagetrim are also available.SchuFs strengths include flexibility of designand construction. We have produced controlvalves in all stainless steels, high Nickelalloys, Titanium and Zirkonium as well asPTFE and glass linings. SchuF uses special surface coatings and multiple spindle guidingto improve the resistance against vibrationsand erosion. SchuF also offers solid TungstenCarbide and Ceramic trims. Most control valves come equipped withpneumatic diaphragm actuators (available ina fire-safe version)...

Originally designed for PTA 3 phase slurry service thesevalves open into the downstream vessel to eliminatechoking and cavitation. The accelerating body design prevents in bodyē flashing, the single piece disc andspindle with spindle protector stops metal fatigue andspindle bending. The valves are used in multi-stagereactor or crystalliser arrangements to control the levelor pressure in the upstream unit. Optinal electrohydraulic actuators (below) eliminate stickingand hunting. > If piping considerations prohibit a disc opening valve,the 74CS offers a disc which opens into the valve. Theeffects...

SchuF supplies many in-line control valves featuring stuffing box orbellows seal, mostly with special materials or trim such as one with anoise reducing cage. The drawback of a globe control valveis the low capacity and high pressureresistance. The ball type control valveshave a limited life due to the ballsrotation wearing out the seal and needlarge actuators to overcome the high torques. The y-globe valveҒs flowcharacteristics come close to those ofa ball valve, and allow the use ofsmaller valves compared to a globevalve.Its proven metal to metal seat quarantees a longer leak tight sealingperformance...

Steam Conditioning Valve, 74DU > Steam control valves control the pressure andtemperature of steam. Steam is generated at highpressures and temperatures to ensure high turbineefficiencies. The movement of the main stem regulates the pressure, the addition of water through the stemdesuperheats the steam. The further the valve opensthe greater the product throughput and the morecooling water is added. Waste Heat Recovery Valve > This valve is a full bore 3-way steam mixingvalve. Hot flue gas from the melting furnacesare used to turn water into steam by boilers.Steam from these waste heat recovery...

Monomer Feed Valve > Disc control valves are used to regulatethe level in PVC reactors. For PET, PBTetc, control valves are used to regulatethe flow into the esterification andpolymerisation reactors. For vacuumservice, bellows are generally used. As they are susceptible to failure in acrystallising and polymerisingenvironment, SchuF recommendsexternal bellows. In these applications,weld-lip gaskets can further enhance the vacuum safety of the system. Polymer Additives Injection Valve > These valves were developed to allow continuous polymer plantsproducing, for example PET, to customise their...

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