Manhole refers to the opening structure for personnel to enter and exit the equipment for installation, maintenance, and safety inspection. It is mainly composed of a short barrel section (or short pipe), a flange and a manhole cover with a handle. For safety inspection purposes, see "Inspection holes" for the number and minimum dimensions of manholes required for pressure vessels. Manhole materials are carbon steel and stainless steel. Manholes are divided into normal pressure and pressure manholes according to pressure conditions; According to the shape of the manhole is divided into round, oval and rectangular manhole, rectangular manhole is only suitable for atmospheric pressure equipment; According to the installation position manholes are divided into horizontal and vertical installation manholes; Manhole cover fixing methods include rotary cover and hanging cover; The manhole opening speed has ordinary type and quick opening type, and the manhole structure and size have generally been standardized, which can be selected or designed by referring to the relevant manual.

Features:

• Product Name: Manhole
• Standard: HG/T21514-21535-2014
• Material: Stainless Steel
• Package: Wooden Box, Pallet Or According To Customer Requirements
• Shape: Round, Oval
• Origin: Cangzhou,China

Technical Parameters:

Packing and Shipping:

Manhole Fittings are packaged and shipped in accordance with the highest industry standards. The standard package includes:

• All fittings are individually wrapped in protective plastic.
• Each fitting is protected with an outer box or container.
• Each container is labeled with the product description, date of manufacture, and any other pertinent information.
• The container is securely sealed to ensure safe delivery.
• The package is shipped via a dependable carrier to ensure timely delivery.

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