Products Description

OASIS passive intake screens provide uninterrupted water withdrawal from rivers, lakes, and oceans. The combination of our non-plugging Vee-Wire design and our patented internal flow modifiers provided a high open area while maintaining the lowest entrance velocity and pressure drop on the market. Additionally, our passive intake screens have no submerged moving parts that could break down or wear out and incorporate the use of the air backwash cleaning system, guaranteeing minimal maintenance.

Passive intake screen system consists of a wedgewire screen structure with a conveyance pipeline to the plant facility and a pumping station. Commonly, the screen structure contains a semi-automated cleaning system that uses bursts of compressed air. Passive screen intake systems exclude a large part of the marine biota by using a relatively small screen aperture and a low inflow velocity. Screen slot aperture is commonly less than 3 mm and depends on environmental regulations pertaining to the specific site location. The range in design intake velocities through the screen ranges from 10 to 15 cm/s, again depending on local regulations. The current motion across the screen structure also sweeps small organisms off the screen and helps exclude them from entrainment into the inflowing water. The degree of environmental impact on entrainment of ichthyoplankton is greatly dependent on the design of the passive intake system and the current velocity. To provide maximum efficiency, OASIS passive intake screens are designed and engineered to each unique environment, resulting in a system which costs less to install, operate and requires less maintenance. OASIS high capacity passive intake screens are constructed using non-plugging VeeWire with an internal dual flow modifier that creates a nearly uniform low flow velocity through the entire screen surface. This significantly reduces impingement and entrainment of debris while protecting aquatic life. Passive screens are designed to meet regulatory requirements for a maximum slot velocity for both entrainment and impingement. This velocity is typically 0.15 m/s which is the maximum velocity at which a juvenile fish can turn around, swim away and not be impinged onto a passive screen but the screens can be designed to the velocity requirements of the application. This, combined with a wide range of slot sizes (typically between 2 - 10 mm) determines our screen sizing. Furthermore, the large open area and low velocities result in a very low head loss in all applications, providing low overall operating costs.

Available in a variety of materials including stainless steel, super duplex, and NSF-certified Z-Alloy, every system is fully compliant with Section 316(b) of the Clean Water Act, and is a proven fish-safe intake solution that reduces impingement while protecting aquatic life. Fit for use in power plants, desalination processing, cooling stations, and so much more, OASIS passive intake systems are the clear choice across industries.

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Advanced technology, Strict inspection process:
Oasis Oil Tools co.,ltd has 20 years experience in Water Filter Mesh Screens/Water Well Sand Filters, we strive for technical innovations to improve quality of products.Our products not only have the features of trustworthy quality, safety and energy save but also beautiful appearance and low maintanemance.

Small profits but quick turnover:
Our Production will offer you a relatively and reasonable lower price, which means our customer can get more profite with a cheap price.

Premium and comprehensive sale system:
With a comprehensive sale system including before sales service, in-sale service and after sale service, we have won a good reputation at home and abroad. Also it is a important reason why so many customer to choose us.

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