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HongTaivalve-Stainless steel full-view mirror vertical pressure manhole-size dn15-dn150-HTV-PM001

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Model No. HT-PM001
Max Working Pressure 5Bars Connection End Round/Square/Oval
Max Working Temperature 120°C Operation By Manual,Pneumatic,Electric
Body Material SS316L,SS304 Sealing Material Silicone, EPDM, Viton, PTFE, or NBR
Inner Surface finish Ra 0.5 External Surface finish: Ra 0.8
Specification 150mm-600mm Certification Raw material report/finished quality report
Raw Material technique Forging or Casting Finish Mirror polish or Matt polish
Design Standard 3A or DIN,SMS,ISO/IDF Processing Machine LG Mazak CNC Machine
Transport Package  Foamed Plastic+Wooden case Application Food or Beverage industrial Usage
Origin Wenzhou China

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Description

Description

**Sanitary Stainless Steel Manhole Covers | Hygienic Access Ports for Tanks & Vessels**
—
### **Product Overview**
Sanitary manhole covers (hygienic access ports) are essential for maintaining cleanability and accessibility in food, pharmaceutical, and biotech tank systems. Crafted from **316L/304 stainless steel**, these covers comply with EHEDG/3-A standards, offering seamless integration with CIP/SIP processes. Available in multiple configurations to suit diverse industrial needs.
—
### **Types & Configurations**
1. **By Shape**
   – **Round**: Standard design (DN400–DN600) for uniform pressure distribution.
   – **Square/Elliptical**: Space-saving solutions for tight installations or non-cylindrical tanks.
2. **By Function**
   – **Pressure-rated**: Reinforced flanges (up to 6 bar) for pressurized vessels.
   – **Standard**: Non-pressurized tanks, fermentation units.
   – **Sight Glass Manhole**: Integrated borosilicate glass window for visual inspection.
   – **Double-Layer (Insulated)**: Thermal insulation for temperature-sensitive processes.
   – **Vented**: Built-in exhaust valve (EPDM/PTFE) to release pressure or vapors.
—
### **Design & Customization**
– **Opening Direction**: **Inward-opening** (external hinge) or **outward-opening** (internal hinge) to suit tank layout.
– **Surface Finish**:
  – **Electropolished** (Ra ≤0.8µm): For high-purity applications (e.g., vaccine production).
  – **Bead-Blasted**: Non-reflective, anti-slip texture for industrial environments.
– **Sealing**: FDA-grade EPDM/Silicone gaskets, bolted or clamp-secured.
—
### **Technical Specifications**
| **Parameter**       | **Specification**                          |
|———————-|——————————————–|
| **Size Range**       | DN150–DN800 (6″–32″)                       |
| **Pressure Rating**  | Standard: 0–3 bar / Pressure-rated: 6 bar  |
| **Material**         | 316L/304 SS, optional Hastelloy coatings   |
| **Temperature**      | -20°C to +150°C (EPDM) / +200°C (Silicone) |
—
### **Tank System Integration**
Sanitary manholes pair with:
1. **Tank Accessories**
   – **Hinges**: Heavy-duty SS hinges with self-lubricating pins.
   – **Clamping Mechanisms**: Swing bolts, tri-clamp locks, or quick-release levers.
   – **Gaskets**: Full-face or profile seals for leak-proof closure.
2. **CIP Components**
   – **Spray Balls**: Rotating/fixed nozzles for internal tank cleaning.
   – **Agitators**: Maintain homogeneity during cleaning cycles.
   – **Sensors**: Pressure transmitters, temperature probes.
—
### **Applications**
– **Dairy**: Milk storage tanks, pasteurizers.
– **Biopharma**: Bioreactors, buffer preparation vessels.
– **Brewing**: Fermentation tanks, bright beer tanks.
– **Chemical**: Mixing vessels with corrosive media.
—
### **Why Choose Our Manhole Covers?**
– **Modular Design**: Retrofit existing tanks with custom flanges or sight glasses.
– **Hygienic Compliance**: Crevice-free surfaces, CIP-ready seals.
– **Explosion-Proof Options**: ATEX-certified designs for hazardous areas.
—
### **FAQ**
**Q: Can manholes be customized for non-standard tank openings?**
A: Yes – provide CAD drawings or tank specs for bespoke sizing/shaping.
**Q: How to prevent gasket degradation during steam sterilization?**
A: Opt for high-temp silicone or PTFE-encapsulated seals.
**Q: Are sight glass manholes compatible with abrasive cleaners?**
A: Use tempered glass with protective SS guards.
—
 Sanitary Manhole Cover, Stainless Steel Tank Access Port, CIP-ready Manhole, Sight Glass Manhole, Pressure-rated Manhole, EHEDG-compliant Cover

 

 

About us

At HongTai, we specialize in high-quality sanitary valves and stainless steel pipe fittings，serving key industries such as pharmaceuticals, food processing, and chemicals. Made from premium 304, 316, and 316L stainless steel, our products offer excellent corrosion resistance and are crafted using advanced manufacturing techniques like laser cutting and precision welding. Designed for hygiene and fluid integrity, HongTai’s valves are the ideal choice for industries requiring optimal cleanliness and long-lasting performance.

Why Choose Us

Quality Assurance: We maintain strict control over every production stage, from raw materials to finished products, ensuring compliance with ISO9001 and international certifications, including 3A, DIN, and ISO standards.

Industry Expertise: Decades of experience in providing solutions for critical industries like food, beverage, and pharmaceuticals.

Advanced Technology: Our state-of-the-art facilities, including regularly updated CNC lathes and precision tools, guarantee high surface accuracy and tight tolerances for every product.

100% Inspection: Every product undergoes rigorous testing, including size and valve leak detection, to ensure flawless quality before it leaves our facility.

Global Reach: Trusted by businesses around the world for our consistent quality and on-time delivery.

Choose HongTai for unmatched reliability, performance, and innovation in valve and pipe fitting solutions.

 

Contact us
For more information or to discuss your requirements, reach out to us via:
Email: ht@htcdf.com
whatsapp: (86)18875809195
You can also visit our Contact Us page for more ways to get in touch.

 

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