Stainless Steel Sight Glass Manhole
Product Description
Product Overview
The stainless steel sight glass manhole is an industrial component integrating an observation window and maintenance access, designed for sealed containers such as storage tanks, reactors, and pipelines. It combines real-time monitoring and personnel access for maintenance. Key features include:
- Dual Functionality: Observes internal media conditions (e.g., liquid level, flow, reactions) while providing entry for inspection.
- High Sealing Performance: Utilizes flanged or quick-opening structures to ensure safety in high-pressure, vacuum, and corrosive environments.
- Sanitary Design: Mirror-polished surfaces (Ra ≤ 0.4μm), compliant with GMP, FDA, and EHEDG standards, suitable for high-cleanliness applications (e.g., food, biopharmaceuticals).
Structural Features
1. Integrated Design:
- Combines sight window and manhole cover, minimizing leakage risks from additional openings.
- Quick-opening hinge/clamp mechanism for rapid access (optional safety pressure relief devices).
2. Safety Enhancements:
- Explosion-proof sight glass (optional), certified for ATEX/IECEx compliance.
- Internal anti-fall grille or guardrail for personnel safety during entry.
3. Customizable Options:
- Compatible with lighting, cleaning nozzles, or steam sterilization ports (CIP/SIP systems).
- Windows with engraved scales or transparent rulers for liquid level/flow monitoring.
Applications:
- Chemical Storage Tanks: Monitors corrosive liquids (e.g., acids, alkalis) to prevent overflow or crystallization.
- Bioreactors: Observes sterile fermentation processes and facilitates sampling/maintenance.
- Food Processing Vessels: Ensures hygienic visual management for dairy, beverages, and HACCP compliance.
- Environmental Equipment: Tracks internal conditions in wastewater treatment or biogas tanks.
Installation & Maintenance
1. Installation Guidelines:
- Clean sealing surfaces before installation to ensure integrity.
- Tighten bolts diagonally and evenly according to torque standards (e.g., ASME PCC-1).
- Perform hot tightening in high-temperature environments to counter thermal expansion.
2. Maintenance Tips:
- Inspect window clarity regularly; replace gaskets every 3 months in corrosive environments.
- Clean windows with neutral detergents; avoid scratches or thermal shocks.
Product Parameters
| Material: 304/316 SS (other grades available) |
| Size Range: DN400-DN800 (customizable) |
| Pressure Rating: Non-pressure (Atmospheric, -0.02MPa to 0.02MPa) |
| Sealing Standard: GB/T compliant, leak-tested |
| Temperature Range: -20°C to +300°C (gasket material options) |
Detailed Photos
About US
FAQ
Q:How do you pack?
A:Plastic bags-------(Paper boxes)-------Cartons-------Plywood cases
Q:How long is the quality guarantee period?
A:We supply 6 to 12 months for quality guarantee according to customers' using frequency.
Q:How can you guarantee the quality of products?
A:First of all, we have the numerical control device to manufacture products accurately. Then our quality inspectors will test products one by one to make sure every flange or fitting we sell is qualified.
Q:How can I check your factory situation while it's difficult for me to come to China.
A:We have photos and videos on our website, It shows every step of the manufacturing.
Alternatively, I can take videos or photos of our factory and send them to you.
Q:What is your lead time?
A:It's around 15 days normally. If we have the products in stock, it will be about 5days.
Q:Can you print our Logo on the valves/Fittings?
A:Yes, we can totally produce products according to your this kind special request, even manufacture it based on your drawing
Q:Are samples available to be sent with free?
A:It depends on what product you need. There are hundreds of products we sell. You can contact us for particular answer.
Q:Do you have a minimum quantity of the products?
A:No, we will build business with you with even 1pc. We believe this cooperation will be a long-term relationship for our high quality, competitive price and good after-sale service.
Q:Where are the main markets for your products?
A:We hope to make business with companies from all over the world. And for now, our flanges and fittings have been exported to especially in North America, South America, South Asia, Europe and Middle East.
Q:Are you a factory or trading company?
A:We are a factory specialized in manufacturing flange and fitting over 10 years.
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