Product Description
This Sanitary Stainless Steel Manhole Cover is a universal quick opening maintenance access for hygienic industries such as food, pharmaceuticals, and cosmetics. It complies with multiple hygienic standards including GMP, FDA, and 3A, is dead-angle free and easy to clean, fundamentally eliminating contamination, and is a core accessory for various hygienic tanks. The Sanitary Stainless Steel Manhole Cover balances hygiene and practicality. The quick opening structure makes maintenance and feeding more convenient, and the sealing design ensures tank cleanliness. It adapts to various hygienic tanks such as preparation tanks, fermentation tanks, and storage tanks, and is an essential device for hygienic working condition tanks. Every sanitary manhole cover from our factory undergoes 100% full inspection before leaving the factory, with full inspection before packaging to ensure each unit meets hygienic working condition requirements.
This Sanitary Stainless Steel Manhole Cover has a body of 304/316L stainless steel, with internal and external mirror polishing of Ra≤0.4~0.8μm. The structure is seamless and retention-free. Seals use food grade silicone, EPDM, and PTFE. Opening is quick opening hinged plus handwheel locking, with pressure coverage of atmospheric, low pressure, and slight positive pressure. The equipment supports comprehensive non-standard customization, can be made in round, oval, and square shapes, and can also be equipped with sight glasses and pressure balance ports, adapting to the size and functional requirements of different hygienic tanks, and easily completing CIP/SIP cleaning. The equipment is corrosion and high temperature resistant, has leak-free sealing, a clean appearance, and convenient maintenance. It also supports drawing-based manufacturing, perfectly adapting to all hygienic fields such as food and beverage, bioengineering, and cosmetics. We support OEM/ODM and can manufacture based on technical drawings or prototypes. MOQ is not limited.
Specifications
|
Item |
Specification |
|
Body Material |
304 / 316L Stainless Steel (Food Grade) |
|
Surface Roughness |
Ra≤0.4~0.8μm (Internal and External Mirror Polished) |
|
Hygienic Standard |
GMP / FDA / 3A |
|
Seal Material |
Food Grade Silicone / EPDM / PTFE |
|
Opening Method |
Hinged Quick Opening + Handwheel Locking |
|
Common Sizes |
DN400-DN600 (Round), 450×350mm (Oval) |
|
Pressure Range |
Atmospheric to Low Pressure Slight Positive Pressure |
|
Cleaning Method |
Supports CIP/SIP Online Cleaning and Sterilization |
Applications
Designed for hygienic industries such as food and beverage, dairy processing, beer brewing, pharmaceuticals, bioengineering, and cosmetics. Suitable for maintenance, feeding and cleaning of various hygienic tanks such as preparation tanks, fermentation tanks, storage tanks, sterile tanks, and batching tanks.
Quality Control
Quality control for sanitary products is stricter than for ordinary industrial grade products. Our Sanitary Stainless Steel Manhole Covers are managed from raw material warehousing. Each batch of steel plates has a material certificate, every production process is recorded, and 100% full inspection is conducted before packaging. We accept third-party inspection, with costs borne by the requesting party. There is a quality inspection process before shipment, and material certificates can be provided. If goods are damaged upon arrival, non-quality issues are the responsibility of the damaging party; if it is a quality issue, the manufacturer replaces it free of charge and is not responsible for logistics costs.
Certifications
Our factory complies with local environmental regulations and holds complete production qualifications and environmental assessment procedures. Products are manufactured according to HG/T chemical industry standards and hygienic specifications; sanitary grade models meet GMP, FDA, 3A and other hygienic standard requirements. 304/316L material certificates can be provided for raw materials, and seals use food grade materials. We accept third-party inspection and can cooperate with customers to complete supplier audit processes.
FAQ
Q: Can sanitary manhole covers be used for pressurized tanks?
A: The standard sanitary model is suitable for atmospheric and low pressure slight positive pressure conditions. If used for pressurized tanks, it is recommended to select a sanitary pressure manhole cover with safety interlock.
Q: Can non-standard sizes be customized?
A: Yes, we support customization according to customer drawings or on-site dimensions. Round, oval, and square shapes are all available. The custom sample lead time is approximately 10 working days.
Q: What roughness can mirror polishing achieve?
A: The standard sanitary model has internal and external mirror polishing of Ra≤0.8μm, and the high-end model can achieve Ra≤0.4μm, meeting pharmaceutical-grade sterile requirements.
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