Stainless Steel tank sewer lid repair square manhole cover

Accessories

Digital advantages

• Data-Driven Installation Efficiency: Installation of a single manhole tank takes only 12 minutes, and locking and debugging time is reduced from 1 hour to 6 minutes, improving installation efficiency by over 90%. Actual testing shows no decrease in interface precision after 11,000 disassembly and assembly cycles, eliminating the need for repeated adjustments to the sealing structure.

• Data-Driven Cleaning Compliance: The internal contact surface roughness Ra≤0.3μm, an 82% reduction compared to industrial models, eliminating cleaning dead zones. CIP cleaning time is reduced by 58%, cleaning agent consumption is reduced by 48%, and cleaning validation achieves a 100% first-pass rate, fully complying with GMP aseptic production requirements.

• Data-Driven Maintenance Efficiency: The symmetrical locking structure reduces single-opening maintenance time from 1.5 hours to 8 minutes, improving changeover cleaning efficiency by 91% and reducing annual maintenance man-hours by 82%, significantly lowering labor costs.

• Data-driven Seal Life: The embedded positioning seal achieves zero leakage after 11,000 disassembly and assembly cycles, extending seal life by 3.2 times compared to industry-standard models; annual spare parts costs are reduced by 72%, and the risk of unplanned downtime due to seal leakage is reduced by over 99%.

• Data-driven Operating Condition Tolerance: The 316L body has a rated working pressure of 1.0MPa, long-term temperature resistance of -20℃ to 130℃, short-term SIP resistance to 155℃ high temperature, and no deformation after 900 hours of sterilization; its resistance to chloride ion corrosion is 2.1 times better than 304 stainless steel, and its service life under normal operating conditions exceeds 11 years.

Stainless Steel tank sewer lid repair square manhole cover

 

Feature (F)、Advantage (A)、Benefit (B)

1. Raw Material:

• F:The flange and pressure cap are precision stamped from a single blank, with no welded seams. Material reports are traceable throughout the entire process, and customization for non-standard diameters and pressure ratings is supported.
• A:No welding stress or intergranular corrosion risk; pressure-bearing surface flatness ≤0.02mm; uniform stress distribution without deformation; resistant to strong acids and alkalis, and chloride ion corrosion; long-term pressure resistance without leakage.
• B:  Addresses the root causes of weld cracking, pressure deformation, and high leakage risk in separate welded models. Meets FDA/GMP compliance requirements, extending service life by 2.3 times compared to welded models, significantly reducing tank maintenance and downtime risks.

2. Processing Technology:

• F:  Symmetrically distributed anti-slip star-shaped handwheel locking mechanism with limit and anti-disengagement design; evenly distributed locking points allow for single-person operation of the entire opening and closing process.
• A:  Locking force is evenly distributed 360°, with no localized overpressure deformation on the sealing surface. The handwheel is non-slip, ensuring convenient locking and unlocking operations without the risk of jamming.
• B: Solves the pain points of uneven locking and localized leakage in conventional models. Single opening and closing operation time is reduced from 1.5 hours to 8 minutes, improving maintenance efficiency by over 91% and significantly reducing labor costs.

3. Structure Feature:

• F: All contact surfaces undergo ultra-mirror finishes both internally and externally, plus electrolytic double polishing. The inner contact surface Ra≤0.3μm, and the sealing surface Ra≤0.2μm, with a full-circumference rounded transition without steps, sharp angles, or protruding dead corners.
• A: The contact surface has no media adsorption or microbial growth blind spots. CIP cleaning leaves no residue, fully adapting to aseptic production environment requirements, with no blind spots for cleaning validation.
• B:Solves the pain points of conventional models such as rough surface, residue buildup, and difficulty in cleaning validation. It reduces cleaning time during production changeover by 58%, cleaning agent consumption by 48%, and achieves a 100% first-time pass rate for cleaning validation.

4. Core Accessory Feature:

• F:  One-piece stainless steel load-bearing handle, lightweight pressure-bearing structure, no unnecessary protrusions or unsanitary corners, adaptable to various tank installation angles, including horizontal and vertical.
• A: Easy to handle and disassemble; single-person operation is possible; strong installation adaptability, no unsanitary blind spots, suitable for various cleanroom tank renovation and new construction projects.
• B:Solves the pain points of conventional models such as laborious disassembly and assembly and limited installation scenarios. It reduces tank modification costs by 80%, achieves a 100% first-time installation success rate, and adapts to various non-standard working conditions.

5. Seal Ring Feature:

• F: Single-groove embedded positioning sealing groove, FDA-certified pharmaceutical-grade seal, full-circumference uniform fit design, seal with anti-detachment positioning structure, no displacement margin.
• A: 100% sealing surface fit; the seal automatically centers without displacement after repeated disassembly and assembly, without compression deformation; stable sealing under both positive and negative pressure conditions, with no dead zones for media infiltration.
• B: Avoids the pain points of conventional seals being prone to misalignment and leakage during disassembly and assembly, achieving zero leakage after 11,000 disassembly and assembly cycles. The seal life is 3.2 times longer than conventional industry models, and annual spare parts costs are reduced by 72%.

 

Stainless Steel tank sewer lid repair square manhole cover

 

Nominal Diameter    DN200~DN800 (8"~32")

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Body Material    AISI 304/316L Stainless Steel, custom alloy available

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Seal Material    Modified PTFE (standard), EPDM/Silicone(optional), FDA certified

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Connection Type    Sanitary Welding/Tri-Clamp (3-A standard)

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Working Temperature    Long-term: -20℃~130℃; Short-term SIP: ≤155℃

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Surface Treatment    Ultra-mirror + electrolytic polishing, Ra≤0.3μm

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Certification    3-A, FDA, CE, GMP compliant

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Applicable Medium    Biopharmaceutical medium, food & beverage, ultra-pure water, CIP media, cosmetic emulsion