Stainless Steel Manway Covers Manufacturer in India
Stainless steel manway covers are essential pressure vessel access components designed to provide secure, leak-tight closures for manholes in tanks, reactors, fermenters, storage vessels, and process equipment. These engineered covers enable safe human entry for inspection, maintenance, and cleaning while maintaining system integrity, pressure containment, and hygienic conditions. Available as SS manway covers, sanitary manway covers, pressure manway covers, circular manway covers, and rectangular manway covers, these components are manufactured to meet stringent requirements for pharmaceutical, food processing, dairy, beverage, chemical, and industrial applications.
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The pressure manway cover is engineered to withstand internal pressure and vacuum conditions, featuring robust construction with reinforced design, precision-machined sealing surfaces, and heavy-duty clamping mechanisms. These covers incorporate safety features including pressure relief provisions, gasket retention grooves, and mechanical interlocks to prevent opening under pressure. Non-pressure manway covers provide economical solutions for atmospheric tanks and vessels, featuring lighter construction while maintaining hygienic design principles and reliable sealing performance.
The circular manway cover (also called round manway) is the most common configuration, available in standard sizes from 12 inches to 24 inches diameter, providing adequate access for personnel entry and equipment installation. Rectangular manway covers offer larger access openings for bulky equipment installation or removal, while oval manway covers combine the benefits of both designs with space-efficient installation and generous access dimensions. The hinged manway cover features integral hinge mechanisms that support the cover weight during opening, improving operator safety and reducing handling effort.
Quick-opening manway covers incorporate cam-lock, swing-bolt, or davit arm mechanisms that enable rapid opening and closing without removing multiple fasteners. These designs significantly reduce downtime during cleaning, inspection, and maintenance operations. The flush manway cover sits level with the tank interior surface, eliminating product accumulation ledges and facilitating complete drainage and thorough cleaning. Additionally, stainless steel manway covers manufactured from premium grades like SS 304 manway covers and SS 316 manway covers offer exceptional corrosion resistance, durability, and compliance with sanitary standards.
As a leading stainless steel manway covers manufacturer in India and trusted sanitary manway covers manufacturer India, we specialize in delivering high-quality access solutions that conform to international standards including ASME Section VIII, BS 2594, DIN 28120, DIN 28122, 3-A Sanitary Standards, and ASME BPE. Our comprehensive product range includes various manway configurations designed for specific vessel types, pressure ratings, and application requirements. Whether you need pressure manway covers for pharmaceutical reactors or hygienic manway covers for food processing tanks, our manufacturing facility is equipped with advanced plate rolling, precision machining, welding, and testing capabilities to meet your exact specifications.
1/4″ NB to 24″ NB Seamless 1/4″ NB to 48″ NB Welded
SCH 5 to SCH XXS
ASTM A312, A249, A269, A270
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As prominent manway covers manufacturers in Mumbai and across India, we understand the critical role these components play in vessel safety, personnel access, maintenance efficiency, and regulatory compliance. Our position as reliable manway covers suppliers in India enables us to serve diverse industries including pharmaceutical manufacturing, biotechnology, chemical processing, food and beverage production, dairy processing, brewing and distilling, petroleum refining, water treatment, and general industrial vessel applications. We maintain substantial inventory as manway covers stockist in Mumbai to ensure immediate availability of standard sizes and configurations while also offering custom design and fabrication for unique vessel specifications and special requirements.
Our role as manway covers exporters in India extends our reach to international markets across the Middle East, Southeast Asia, Africa, Europe, and North America. As dedicated stainless steel manway covers suppliers and sanitary manway covers exporters, we ensure timely delivery and comprehensive technical support including pressure vessel code compliance verification, gasket selection guidance, installation procedures, and torque specifications. The SS 304 manway covers are ideal for general industrial, food processing, and atmospheric storage applications offering excellent corrosion resistance at economical prices, while SS 316 manway covers provide superior resistance to acids, chlorides, and aggressive chemicals due to their molybdenum content, making them perfect for pharmaceutical reactors, marine applications, and corrosive chemical service.
Global Export Network
As leading Manway Covers Exporters and Sanitary Manway Covers Exporters, we export worldwide to:
North America: USA, Canada, Mexico
South America: Brazil, Argentina, Chile, Peru, Colombia
Europe: Germany, France, Italy, Spain, Netherlands, Belgium, Poland, Austria, Switzerland, United Kingdom
Middle East: Saudi Arabia, UAE, Qatar, Oman, Kuwait, Bahrain
Asia: Singapore, Malaysia, Indonesia, Thailand, Vietnam, Philippines, Japan, South Korea, Sri Lanka, Bangladesh, Nepal
Africa: South Africa, Egypt, Nigeria, Kenya, Tanzania, Morocco
Oceania: Australia, New Zealand
Note: – All shipments are supplied with export-grade packaging and complete documentation.
Serving All Major Cities in India
As premier Manway Covers Manufacturers In India and Stainless Steel Manway Covers Suppliers, we serve:
Mumbai, Navi Mumbai, Thane, Palghar, Pune, Nashik, Aurangabad, Ahmedabad, Vadodara, Surat, Vapi, Ankleshwar, Bharuch, Dahej, Jamnagar, Rajkot, Chennai, Bangalore, Coimbatore, Hyderabad, Visakhapatnam, Vijayawada, Kochi, Palakkad, Thiruvananthapuram, New Delhi, Noida, Gurugram, Faridabad, Jaipur, Neemrana, Bhiwadi, Ludhiana, Jalandhar, Kolkata, Howrah, Durgapur, Haldia, Raipur, Bhilai, Nagpur, Indore, Bhopal.
Types of Stainless Steel Manway Covers We Offer
Stainless Steel Manway Covers Specifications
Parameter | Details |
Material Grades | SS 304, SS 304L, SS 316, SS 316L, SS 316Ti |
Size Range | 12″ to 36″ (300mm to 900mm) diameter |
Shape Options | Circular (Round), Rectangular, Oval, Square |
Pressure Rating | Atmospheric to Full Vacuum, 3 Bar to 16 Bar (Pressure vessels) |
Design Standards | ASME Section VIII Div 1, BS 2594, DIN 28120, DIN 28122 |
Temperature Range | -20°C to 200°C (depending on gasket material) |
Clamping Types | Swing Bolt, Cam Lock, Davit Arm, Nut & Bolt, Quick Opening |
Gasket Options | EPDM, Silicone, Viton, PTFE, Compressed Fiber, Spiral Wound |
Surface Finish | 2B Mill Finish, #4 Brushed, Electropolished (Ra ≤ 0.8 μm) |
Connection Types | Welded Neck, Slip-On, Flanged, Tri-Clamp (Small sizes) |
Manway Cover Types & Configurations
Manway Type | Design Features | Best Applications | Key Advantages |
Circular Manway | Round opening, standard sizes | General vessels, tanks, reactors | Easy sealing, pressure containment |
Rectangular Manway | Rectangular opening | Equipment installation, large access | Maximum opening area |
Oval Manway | Elliptical shape | Space-constrained installations | Compact footprint, good access |
Hinged Manway | Integral hinge mechanism | Frequent access applications | Operator safety, easy handling |
Quick-Opening Manway | Cam lock or swing bolt | CIP operations, rapid access | Time savings, reduced downtime |
Flush Manway | Interior flush design | Sanitary applications | No product ledges, complete drainage |
Bolted Manway | Traditional nut & bolt | High-pressure vessels | Maximum strength, code compliant |
Davit Arm Manway | Lifting davit mechanism | Heavy covers, ergonomic needs | Safe cover handling, no lifting |
Manway Cover Size & Access Dimensions
Nominal Size | Clear Opening | Overall Diameter | Typical Applications | Weight Range |
12″ (300mm) | 305mm | 450-500mm | Small tanks, inspection ports | 15-25 kg |
16″ (400mm) | 406mm | 550-600mm | Medium vessels, limited access | 25-40 kg |
18″ (450mm) | 457mm | 600-650mm | Standard tanks, personnel entry | 35-50 kg |
20″ (500mm) | 508mm | 650-700mm | Large tanks, comfortable entry | 45-65 kg |
24″ (600mm) | 610mm | 750-800mm | Industrial vessels, equipment access | 60-90 kg |
30″ (750mm) | 762mm | 900-1000mm | Large reactors, major equipment | 90-130 kg |
36″ (900mm) | 914mm | 1100-1200mm | Very large vessels, agitator installation | 120-180 kg |
GlPressure Rating & Design Specifications
Pressure Class | Design Pressure | Test Pressure | Typical Vessel Applications |
Atmospheric | 0 Bar (Vacuum capable) | Vacuum test | Storage tanks, atmospheric vessels |
Low Pressure | 1-3 Bar | 1.5x design | Food processing, dairy tanks |
Medium Pressure | 4-8 Bar | 1.5x design | Chemical reactors, fermenters |
High Pressure | 10-16 Bar | 1.5x design | Pressure reactors, autoclaves |
Full Vacuum | -1 Bar (FV) | FV + safety factor | Vacuum dryers, distillation vessels |
Industry Compliance & Standards
Standard | Application Area | Compliance Requirements |
ASME Section VIII Div 1 | Pressure Vessels | Design calculations, material specs, inspection |
BS 2594 | Carbon & Stainless Steel Tanks | Dimensional standards, testing requirements |
DIN 28120 | Round Manways (Non-Pressure) | Dimensions, materials, sealing |
DIN 28122 | Round Manways (Pressure) | Pressure design, safety features |
3-A Sanitary Standards | Dairy & Food Equipment | Smooth surfaces, drainage, cleanability |
ASME BPE | Bioprocessing Equipment | Surface finish, dead leg minimization |
OSHA 1910.146 | Confined Space Entry | Safety requirements, size specifications |
PED 2014/68/EU | European Pressure Equipment | CE marking, essential safety requirements |
Equivalent Grades of Stainless Steel Manway Covers
STANDARD | WERKSTOFF NR. | UNS | JIS | BS | EN |
SS 304 | 1.4301 | S30400 | SUS 304 | 304S31 | X5CrNi18-10 |
SS 304L | 1.4307 | S30403 | SUS 304L | 304S11 | X2CrNi19-11 |
SS 316 | 1.4401 | S31600 | SUS 316 | 316S31 | X5CrNiMo17-12-2 |
SS 316L | 1.4404 | S31603 | SUS 316L | 316S11 | X2CrNiMo17-12-2 |
SS 316Ti | 1.4571 | S31635 | SUS 316Ti | 320S31 | X6CrNiMoTi17-12-2 |
Being a premier sanitary manway covers manufacturer, we ensure every manway cover undergoes rigorous quality verification including dimensional inspection per applicable codes, sealing surface flatness measurement, gasket groove verification, pressure testing (hydrostatic or pneumatic), material certification, and welding inspection per ASME Section IX. Our pressure manway covers manufacturers division specializes in ASME code-stamped designs with complete design calculations, U-stamp authorization, and third-party inspection coordination for jurisdictional requirements.
Our quick opening manway stockist inventory includes cam-lock and swing-bolt designs in popular sizes (18″, 20″, 24″) for immediate availability. As experienced circular manway suppliers, we provide complete manway assemblies including covers, flanges, gaskets, fasteners, and installation hardware. We also manufacture hinged manway covers with various hinge configurations including side-mounted, top-mounted, and bottom-mounted designs based on vessel geometry and operational requirements.
conclusion
stainless steel manway covers are critical safety and access components for vessels and tanks across all process industries. As your trusted stainless steel manway covers manufacturer in India, we offer a comprehensive range including circular manway covers, rectangular manway covers, pressure manway covers, quick-opening manway covers, hinged manway covers, and custom-designed access solutions to meet diverse vessel specifications and operational requirements. With commitment to quality, code compliance, and customer satisfaction, we have established ourselves as preferred manway covers suppliers in Mumbai and throughout India. Our extensive experience as manway covers exporters ensures that you receive world-class vessel access solutions backed by complete engineering documentation, pressure vessel code compliance, material traceability, and reliable technical support.
Frequently Asked Questions (FAQs)
01.
What size manway cover do I need for my tank?
02.
What's the difference between pressure and non-pressure manway covers?
03.
How do quick-opening manway covers work?
04.
Can manway covers be used for confined space entry?
05.
Do you provide pressure vessel code compliance for manway covers?
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