Home > Dn300 Cast Iron Flap Gate, Steel Flap Gate, Fiberglass Flap Gate

Dn300 Cast Iron Flap Gate, Steel Flap Gate, Fiberglass Flap Gate

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US$ 1353.85 1 Piece
US$ 1323.08 ≥2 Piece
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Hebei Yangyu Hydraulic Machinery Co., Ltd.
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Detailed parameters of fiberglass flap gate are as follows: Caliber specification: Circular DN200 - 2600mm, square 300 - 3000mm. Working medium: Industrial and domestic sewage with acid - alkali properties, seawater, etc. Working temperature: Below 60 degrees. According to usage requirements, it can be designed as a flap gate with a maximum temperature resistance of 100 degrees. Working pressure: From normal pressure to 0.25MPa. Seal ring form: Lip - shaped seal, hollow circular tube seal. Flap gate cover opening angle > 60 degrees. Barcol hardness: 30 - 40. Specific gravity: 1.8 - 1.9. Service life: More than 10 years.

Specifications of fiberglass flap gate

There are two types: circular flap gate and square flap gate, which can be designed and produced according to the size and shape of the water outlet; they can be respectively hollow floating plate flap gates and flat plate flap gates. It is a one - way valve suitable for pipes, sewage treatment, and the outlet of drainage pipes on the river bank. It has the function of automatic opening and closing; it has good water - stopping and anti - backflow performance.


Installation precautions

1. The flap gate should be vertically installed on a reinforced concrete frame with anchor bolts. The frame surface should be leveled and smoothed with No. 200 cement mortar.

2. The concrete frame should be integrated with the culvert foundation. The frame should have sufficient strength, and the anchor bolts should be pre - embedded and the threads should be protected from damage.

3. The arrangement of the anchor screws should be based on the vertical line.

4. A 500mm installation space (for tightening the screws) should be left around the flap gate.

5. A sedimentation tank (trough) should be set under the flap gate cover, and there should be no obstacles within the opening and closing range of the flap gate cover.


Lifting for installation of fiberglass flap gate:

1. When lifting the flap gate, the ropes should be tied to the flap gate seat. It is prohibited to tie them to the flap gate support ears and hinge shafts.

2. Prevent the flap gate from colliding with other objects during lifting.

Test: (This work has been carried out before leaving the factory)

1. Fill the cavity of the flap gate cover with water and tighten the screw plug. There should be no water seepage after 30 minutes.

2. First, check the sealing condition between the flap gate cover and the flap gate seat by the light - transmission method.

3. Place the flap gate in the normal working state, inject water into the pipeline (seal the flange opening), and observe the water level height when the flap gate cover opens. This height should be within the design range.

4. Pull the pull - ring on the flap gate cover by hand. The opening angle of the cover should be greater than 60 degrees, with no jamming phenomenon, and the opening and closing should be free and flexible.

The fiberglass flap gate is mainly used in various pipes and water channels in water supply and drainage and sewage treatment projects, for overflow or non - return of the medium, and can also be used as the manhole cover of various shafts. Characteristics and working principle of steel flap gate: The steel flap gate is composed of a valve body, a valve cover, and hinge components. Its opening and closing force comes from the water source pressure and does not require manual operation. If the water pressure inside the flap gate is greater than the pressure outside the flap gate, it will open; otherwise, it will close, so as to achieve the functions of overflow and non - return. Main performance parameters of cast - iron flap gate: Nominal pressure: 0.1MPa. 4. Applicable medium: Water, river water, sewage, seawater. Applicable temperature: ≤50℃. Structure and working principle of cast - iron flap gate: It is composed of a valve seat, a valve plate, a sealing ring, and a hinge. It is only used for circular and square water outlets of one - way water flow. The structure is tight and the work is reliable. The opening and closing force comes from the water source pressure. If the water pressure inside is greater than the pressure outside the flap gate, it will open; otherwise, it will close. Flap gate performance: Nominal pressure: 0.1MPa - 1.0MPa. Applicable medium: Water, river water, river water, seawater, domestic and industrial sewage. Applicable temperature: ≤50℃. Scope of application: It is applicable to water conservancy systems, municipal sewage, urban flood control and drainage, sewage treatment plants, waterworks, etc. Product specifications and categories of cast - iron flap gate: The flap gate specifications are divided into circular flap gates and square flap gates, which can be designed and produced according to the size and shape of the water outlet; the flap gate categories can be respectively hollow floating plate flap gates and flat plate flap gates. Flap gate installation: The flap gate can be installed in the following ways: flange connection, concrete pouring. The allowable deviation between the center of the flap gate and the center of the flow channel should not be greater than 3.0 mm. A 400 mm installation space should be left around the flap gate, and a 1:5 slope should be made under the flap gate outlet. Accessories for flap gate installation: Bolts or expansion screws should be made of stainless steel or carbon steel with anti - corrosion treatment; sealing parts should be made of rubber or rubber gaskets.



          

Product Tags: Flap gate , Steel gate , Cast iron gate , Winch hoist , Hydraulic flap gate

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Hebei Yangyu Hydraulic Machinery Co., Ltd.
Verified Business License
Main Markets
North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe, Central America, Northern Europe, Southern Europe, South Asia, Domestic Market
Location
Hengshui, Hebei, China
Contact Supplier Request Quote Chat Now

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