Zungtech Co., Ltd
OEM Parts
Cook Compression is an innovator in the design, manufacture and application of a complete selection of compressor valves. From precision-crafted metal plate valves to the latest, high-performance designs with non-metallic internals, we offer solutions for any reciprocating compressor in any type of service. Cook Compression manufactures complete valve assemblies, as well as plates, discs, rings, buttons, poppets, damper plates, spring plates, leaf springs and other metallic and non-metallic components for any make or model valve.
Zungtech is Cook Compression's exclusive distributor and authorized service partner within the territory of Taiwan. As a professional supplier of OEM compressor parts and services with years of service experience in industrial machinery, Zungtech provides repair and overhaul services, as well as replacement parts, for all types of reciprocating compressors. Its diverse product service range includes reconditioning of plate valves, radius seat ring valves, chamfer seat ring valves, poppet valves, multi-element valves, non-return valves and all kinds of packing assemblies.
Valve
Cook Compression is an innovator in the design, manufacture and application of a complete selection of compressor valves. From precision-crafted metal plate valves to the latest, high-performance designs with non-metallic internals, we offer solutions for any reciprocating compressor in any type of service.Cook Compression manufactures complete valve assemblies, as well as plates, discs, rings, buttons, poppets, damper plates, spring plates, leaf springs and other metallic and non-metallic components for any make or model valve.
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Patented products
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Valve materials development program
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Valve analysis, design, upgrades, conversion and reconditioning services
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Highly qualified engineering staff, including experts with compressor OEM experience
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Advanced, computerized valve dynamics simulation
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Sophisticated 3-D CAD modeling
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Linear and non-linear finite element analysis
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In-house injection molding
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Laser profiling and proprietary processes for stress-free metallic plates and discs
Packing Cases
Cook Compression offers a wide assortment of packing cases suitable for use at pressures ranging from vacuum to 50,000 psi. Available features include lubrication, venting, purging and cooling.
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Material options for all gases and pressure conditions
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Advanced hyper sealing components
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Cases for non-lubricated service
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Vented and buffered cases specially designed for your application to reduce fugitive emissions
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Custom-engineered packages
Rod Rings
Continued development, backed by experienced applications support, results in custom seal ring, pressure breaker and wiper solutions that consistently outperform traditional approaches. A complete selection of materials, from bronze to high-performance non-metallics, dramatically improves durability in the most demanding applications.
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The broadest line of sealing products
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More products in more applications than any other sealing products provider
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High-performance packing for reciprocating pumps
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High-precision manufacturing
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In-house injection and compression molding
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Ongoing materials development, including cooperative programs with renowned universities
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In-house laboratories and test compressors
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Extensive engineering and field support
Oil Wipers
Oil wiper packing plays a critical role in maintaining reciprocating compressor reliability, preventing crankcase oil from contaminating downstream components and processes.Properly functioning wiper packing also reduces oil consumption and costs, while protecting the environment from leakage.
Cook Compression wiper rings are optimized for each application and constructed of materials that provide the optimum balance of strength, flexibility and durability. Oil wipers are typically in a two- or three-ring arrangement.
Piston Rings and Riders
Cook Compression is a worldwide leader in the design and production of precision-made piston ring seals and rider rings.
Cook Compression optimizes rider ring geometry, features, dimensions and materials to reduce loads and provide maximum service life, even in the most demanding applications.
Cook piston rings are engineered to limit leakage with lasting reliability.
All piston ring and rider materials are tested and validated through engineering analyses and Cook’s in-house materials laboratory and test compressors. Materials include cast iron, bronze, specially engineered alloys and high-performance thermoplastics.
Pistons and Rods
Extensive experience, quality manufacturing processes and complete engineering support make Cook Compression a valuable resource for compressor pistons and rods.Cook manufactures both single-piece and segmental piston designs in an assortment of sizes, materials and specifications. Cook also provides premium piston rods for all major makes and models of compressors.
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Full line of single-piece and segmental pistons
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FEA performed on all new piston designs
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Uncoated rods feature induction hardened packing areas
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Tungsten carbide coatings specific to application requirements
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All rods feature rolled threads
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Custom engineering and manufacturing
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All products meet or exceed manufacturer specifications
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Extensive experience in serving gas transmission, gathering, processing and refining industries
COOK CLEAN™ Sealing System
A next-generation sealing system that helps lower fugitive emissions from packing cases to near zero levels (0.75 SCFM). COOK CLEAN sealing systems are designed to help reciprocating compressor owners and operators meet emission regulations, maximize natural gas recovery, increase compressor efficiency and reduce downtime and maintenance costs.
Components of the COOK CLEAN sealing system include the following advanced technologies:
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Low-emission, solid ring solutions that help eliminate leak paths.
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Advanced technologies for purge and vent seals that create a virtually leak-proof environment, reduce frictional heat and extend the service life of the seal rings and packing case.
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Ultra-smooth packing cup surfaces and spiral wound gasket for a superior seal.
TruTech® High Performance Materials
Incorporating the latest advances in polymer science, TruTech™ materials from Cook Compression provide superior durability and optimum performance characteristics for reciprocating compressor components, including packing rings, wiper rings, piston rings and rider rings.
The TruTech family includes PTFE, UHMWPE, PEEK, PPS, polyimide and other high-temperature aromatic polymer materials.
Special formulations provide high-performance sealing and lasting reliability for even the most demanding non-lubricated, dry-gas and high-temperature applications.
Gas Flow Measurement
Sentrix™ flow measurement technology provides highly accurate, easy-to-use solutions for measuring and tracking packing case vent flow in gas compressors.
Sentrix meters, which provide direct measurement of gases, are convenient, cost-effective solutions for meeting US EPA Greenhouse Gas Reporting Rule Subpart W (40 CFR Part 98). The high accuracy of thermal mass flow measurement satisfies BAMM (Best Available Measurement Methods) requirements and is the only technology capable of measuring extremely low leakage from packing cases.