Stainless steel tank is composed of tank body, tank cover, agitator, support, transmission device, shaft seal device, etc., according to the customer's production process, can also add cleaning ball, level gauge, manhole (hand hole), thermometer, pressure gauge and other accessories.Among them, the manhole (hand hole) is installed on the top of the stainless steel tank safety emergency ventilation device, but also for the installation, disassembly, cleaning and maintenance of the stainless steel tank internal device.

The structure of hand hole and manhole is basically the same, which is composed of cylinder section, flange, cover plate and handle.So, when customizing the stainless steel tank, how should you choose the manhole on the tank?

The size of manhole and hand hole can be set according to the size of the tank. The diameter of the hand hole is generally 150-250mm. The nominal diameter of the standardized hand hole is DN150 and DN250.The size of the manhole is 400-800mm, generally when the diameter of the stainless steel tank is more than 900mm, the manhole should be opened.General manhole has two handles, stainless steel tank selection should be integrated consideration of the nominal pressure, nominal diameter (nominal pressure, hand hole nominal pressure and flange nominal pressure concept.Nominal diameter refers to the nominal diameter of its simple joint), working temperature, and the structure and material of the hand hole and other factors.Usually, the stainless steel tank can be installed according to the operation needs. Considering that the diameter of the manhole cover is larger and heavier, the horizontal hanging cover manhole is selected, and the axis of the manhole cylinder is vertically installed.

The choice of manhole and hand hole on the stainless steel tank body can be selected according to the actual production of pressure type or atmospheric pressure type. The shape of manhole and hand hole is oval, round, square and other shapes. According to the model specifications, there are YAA, YAB, YAC,YAD, YAF (hand) manhole models.

Zhonghao R & D and manufacture of a variety of mixing and conveying equipment, its material, structure, layout;Strictly in accordance with the food and drug machinery and equipment manufacturing requirements design, manufacturing.To ensure that every product provided has first-class quality standards, excellent performance.We respect, trust, care for every user, we strive to serve each of our users, we will be ZHONGHAO brand image deeply rooted in the hearts of every user!We firmly believe that only by obtaining the trust and support of all users can we survive and develop;Sincerely welcome new and old customers to visit, sincerely cooperate with friends from all walks of life, hand in hand to create brilliant!