Round Stainless Steel Manway Cover

Our factory has 15 years of in-depth experience in fluid equipment manufacturing. This Round Stainless Steel Manway Cover is a round maintenance device manufactured according to HG/T standards. The body is made of 304 or 316L stainless steel, which is corrosion and rust resistant, covering atmospheric and low pressure multiple working conditions. It is a commonly used maintenance accessory for storage tanks and vessels in industries such as food, chemical, and water treatment. The Round Stainless Steel Manway Cover is installed on the top or side wall of the tank for personnel access for cleaning and maintenance. The round structure has uniform force distribution and stable sealing performance, making it the most widely used manhole cover form in industrial tanks. Our factory has a monthly production capacity of 1-2 million RMB. Standard model lead times are determined by quantity, on-time delivery is ensured through contracts, and photo and video progress updates can be provided during production.

This Round Stainless Steel Manway Cover comes in four structures: quick opening, swing cover, lifting cover type, and atmospheric flat cover. The quick opening type allows single-person rapid opening and closing, and the lifting cover type adapts to large-diameter heavy covers. The body is 304/316L stainless steel, seals include PTFE, EPDM, etc. Common sizes are DN400-DN600, with temperature resistance of -20℃~150℃. The equipment has reliable sealing and long service life, and sanitary grade mirror polishing is dead-angle free and easy to clean, meeting GMP and 3A requirements. For model selection, choose material based on medium and structure based on operation frequency. Pressure vessels must have safety interlocks, installation flange surfaces must be flat with bolts tightened diagonally, and sealing surfaces should be inspected regularly during maintenance. Atmospheric models are strictly prohibited for use in pressurized vessels, and pressure must be fully released before opening. We support OEM/ODM and can manufacture based on technical drawings or prototypes. MOQ is not limited, and different models can be mixed in one minimum order quantity.

Widely used for maintenance, cleaning and personnel access in industrial equipment such as food and beverage storage tanks, chemical reactors, water treatment tanks, brewing fermentation tanks, and pharmaceutical preparation tanks. The round structure is suitable for most standard tanks.

We provide comprehensive OEM/ODM services. Customers can provide technical drawings, samples or prototypes, and we can manufacture accordingly. Customization dimensions for Round Stainless Steel Manway Cover include material options of 304 or 316L; diameter can be customized from DN200 to DN800; structures can be quick opening, swing cover, or lifting cover type; pressure ratings can be customized from atmospheric to pressure models; functional accessories such as sight glasses, sampling ports, and anti-fall nets can also be added. Custom samples can be delivered in 10 working days. Bulk order lead times are determined by quantity and product complexity, all locked in through contracts. Samples can be provided before bulk orders; samples are fee-based, but small-value samples can be free.

We are Wenzhou Shunzhan Fluid Equipment Co., Ltd., with 15 years of experience in stainless steel fluid equipment manufacturing. The factory covers an area of 1,500 square meters with a core team of 15-20 people. We focus on two major product categories: manhole covers and filters. From sheet cutting and flange welding to sealing surface grinding, every step is handled by dedicated personnel. Our monthly production capacity is stable at 1-2 million RMB, meeting both small-batch trial orders and agents' annual framework orders. The factory complies with local environmental regulations and holds complete production qualifications and environmental assessment procedures.

Standard Round Stainless Steel Manway Covers follow the conventional payment process of 30% advance payment + 70% balance payment; custom products use 50% advance payment + 50% balance payment. Bulk orders are eligible for discounts, determined on a per-order basis. We accept payment in US dollars and RMB. The lead time for repeat orders is determined by the product order. The payment process is standardized and transparent, with each payment corresponding to a formal contract and commercial invoice. In 15 years, there has never been a case of receiving payment without shipping or goods not matching the description.

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