WKM valves are high-performance industrial valves produced by the WKM brand of Cameron, USA, designed for harsh working conditions in the fields of oil, natural gas and chemical industry. Its core products are ball valves, and it also covers butterfly valves, gate valves and other types. It is known for its fast opening and closing, high pressure resistance and two-way sealing, and is widely used in long-distance pipelines and industrial systems.
Core structure and technical characteristics
Typical structure:
Orbital ball valve: Reduces sealing surface wear through orbital rotation, suitable for frequent opening and closing scenarios; Fully welded valve body: Eliminates the risk of flange leakage, suitable for high-pressure long-distance pipelines (such as natural gas trunk lines); Anti-blowout valve stem: Prevents valve stem from blowing out under high-pressure conditions, improving operational safety.
Key technologies:
Dual piston effect (DPE) valve seat: Use medium pressure to push the valve seat seal in both directions, leakage rate ≤ ISO 5208 Class B standard; Metal hard seal + elastic compensation: Adapt to high temperature and high pressure environment (Class 150~2500), reduce opening and closing torque
Applications
Oil and gas extraction: used in drilling riser manifolds, high-pressure mud mixing pipelines and other scenarios, which need to adapt to abrasive media and high-frequency operations; Chemical equipment: stainless steel or fluorine-lined materials are used when handling corrosive media (such as acids and alkalis) to enhance chemical corrosion resistance; Ship systems: fuel oil transportation, hydraulic power pipelines and other scenarios need to pass classification society certification (such as CCS, DNV).
Selection and maintenance points
Selection basis: It is necessary to select the appropriate model (such as fully welded ball valve or split butterfly valve) according to the corrosiveness of the medium, system pressure (such as Class 600~1500) and installation environment; Maintenance specifications: Check the wear and lubrication status of the sealing surface every 6 months, and the maintenance cycle needs to be shortened to 3 months in high temperature or vibration environments; Fault handling: Minor leaks can be repaired by injecting special sealing grease, and serious damage requires replacement of the valve seat or the entire valve