The Stainless Steel Filter Pipe is manufactured using high-quality stainless steel and primarily employs a wedge-wire spiral-welded structure to create uniform and precisely controllable filtration slots. Featuring high filtration precision, large flow capacity, excellent structural strength, and ease of backwashing, this product serves as a core component in solid-liquid separation, gas-solid separation, and fluid distribution control systems.
Structural Advantages
Precise Filtration Slots
The stainless steel filter pipe is made with a welding process. This process makes the slot widths adjustable from 20 microns to millimeters. The slots are shaped like down trapezoids, narrower on the outside and wider on the inside. This shape helps prevent particles from getting stuck while keeping a balance between filtering efficiency and flow capacity.
High Open Area and Low Flow Resistance
Our filter pipe has a wedge-wire spiral-welded structure. This structure has an open area ratio of 30% to 60% which's much better than traditional perforated pipes or woven mesh tubes. This means it has flow resistance and can handle more processing throughput. As a result it uses energy and needs cleaning less often.
Superior Mechanical Strength
The filter pipe has support rods and wedge wires that are joined together with resistance welding or laser welding. This creates a single structure. This design allows the pipe to handle pressure differences and strong forces. It is perfect for environments, with vibration, impact and other demanding conditions.
Applications
Water and Wastewater Treatment
Used in sewage treatment plants for rotary drum filters, pressure screens, deep-well water desanding, pre-membrane protection filters, and similar applications.
Petrochemical Industry
Employed in process stages such as catalyst recovery, amine solution filtration, tower packing support, and crude oil impurity removal.
Pharmaceuticals and Bioengineering
Used for fermentation broth separation, activated carbon removal in injectable solutions, and filtration within cleaning fluid circulation systems.
Mining and Metallurgy
Utilized in solid-liquid separation processes, including ore slurry dewatering, dry tailings stacking, and coal washing media recovery.
Quality Control
Raw Material Inspection: Material composition is analyzed using a spectrometer to ensure the correct grade and specifications are met.
Process Control: During the spiral-welding process, the uniformity of the slots and the strength of the welds are monitored in real-time, with all critical parameters meticulously recorded.
Finished Product Inspection: Stainless steel filter pipes undergo a sampling inspection using gap go/no-go gauges, a comprehensive visual inspection of all weld seams, and either a hydrostatic or pneumatic pressure test (reports available upon request). For products requiring high levels of cleanliness, additional ultrasonic cleaning and particulate analysis are performed.
FAQ
Q: What stainless steel grades are available?
A: The most commonly used grades are 304 and 316/316L; however, we can also customize corrosion-resistant alloys, such as duplex stainless steel.
Q: How are the products cleaned and backwashed?
A: The wedge-wire structure features an inverted trapezoidal profile-narrower on the outside and wider on the inside-which prevents particles from becoming lodged. Cleaning can be effectively achieved through water or air backwashing, allowing for a rapid recovery of flow rate.
Q: What quality inspection reports can be provided?
A: We can provide material spectroscopic analysis reports, pressure test reports, and records of gap size inspections.
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