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View productSanitary Round Manhole Cover
For clean access to low-pressure tanks and process vessels, the cover needs to open and close easily while keeping the interior hygienic and simple to clean. Established round manhole manufacturers offer the LK-A1 in polished 304/316L, and specialist sanitary manhole manufacturers can help match gasket material, surface finish, and size details to the installation.
Round Manhole Cover at a Glance
The LK-A1 is an outward-opening sanitary manway cover designed for low-pressure tank access. Product details below are drawn from the official product page for this round manhole.
- Outward-Opening Manway The cover opens outward and can be supplied with a spanner-type handle or a handwheel handle.
- Material Options Frame and cover options include SS304 and SS316L for stainless process lines.
- Gasket Choices Silicone, EPDM, NBR, and FPM gasket materials are listed on the product page.
- Surface Finishes Inner surface Ra 0.05 μm to 0.5 μm; outer surface matte, mirror-polished, or sand-blasted.
- Pressure Rating Rated at 0.2 bar, making it suitable for low-pressure vessels and hygienic process tanks.
- Size Choice Available from DN150 to DN600 with a detailed product size table shown below.
Outward-Opening Manway Construction
This round manhole is designed around an outward-opening cover with a frame, cover, hinge supports, swing bolt, and locking ring for reliable repeated access. The handle can be selected as a spanner-type or handwheel design depending on the tank location and operator preference.
Frame and cover materials can be specified as SS304 or SS316L. The internal surface can be supplied from Ra 0.05 μm to 0.5 μm, while the external finish can be matte, mirror-polished, or sand-blasted to suit the installation environment.
Round Manhole Dimensions and Component Materials
The size table below reflects the product options shown for this round manhole. Height and thickness can be changed according to customer requirements.
| Size | OD | T | H | C | Handwheel Qty |
|---|---|---|---|---|---|
| Φ150*100 | 150 | 2.0 | 100 | 1.5 | 1 |
| Φ200*100 | 200 | 2.0 | 100 | 2.0 | 1 |
| Φ300*100 | 300 | 2.5 | 100 | 2.0 | 1 |
| Φ400*100 | 400 | 2.5 | 100 | 2.5 | 1 |
| Φ450*100 | 450 | 2.5 | 100 | 2.5 | 1 |
| Φ500*100 | 500 | 3.0 | 100 | 2.5 | 1 |
Height (H) and thickness can be changed according to request of customers.
Component and Material List
| Item | Description | Material |
|---|---|---|
| 1 | Frame | SS304 / SS316L |
| 2 | Cover | SS304 / SS316L |
| 3 | Gasket | Silicone* |
| 4 | Bracket | T304 |
| 5 | Handle | Nylon / T304 |
| 6 | Swing bolt | SS304 |
| 7 | Up hinge Support | SS304 |
| 8 | Back hinge Support | SS304 |
| 9 | Front hinge Support | SS304 |
| 10 | Pin | SS304 |
| 11 | Lock ring | SS304 |
Gasket material options: Silicone, EPDM, FPM per FDA.
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View productFrequently Asked Questions
what is the model number for this round manhole?
the round manhole shown on this page is model no. lk-a1.
which materials are used for the lk-a1 frame and cover?
the product page lists ss304 and ss316l for the frame and cover. gasket options include silicone, epdm, nbr, and fpm.
what surface finish options are available?
inner surface finishes can be supplied from ra 0.05 μm to 0.5 μm. outer surface options are matte, mirror-polished, or sand-blasting finish.
what size options are listed for this round manhole?
size options are dn150, dn200, dn300, dn400, dn500, and dn600. the product size table includes diameter, thickness, height, cut dimension, and handwheel quantity; height and thickness can be changed on request.
what pressure is this manhole designed for?
the stated pressure rating is 0.2 bar. exact service conditions should be confirmed with the manufacturer for the intended tank application.
how can i request more details or a quote?
use the product page quote option or the contact us page. likemetals can also be reached at +86 15988775005 or info@likemetals.com.
