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Free Double-turn-over Flap Valve
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Free Double-turn-over Flap Valve

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Product description


The door is a remake of bilateral free valve products, relying on weight and pressure difference inside and outside the door, automatically opening and closing, sealing, anti-reflux performance, corrosion resistance, ease of installation management.

Free remake of the door for bilateral drainage and sewage treatment works to a variety of channels, rivers, drainage channels, the mouth of the shore-return purposes, it is only a one-way flow of rectangular channel for the outlet.

Bilateral free remake of the door specifications:

According to customer requirements, offer different sizes of bilateral free remake of the door.

Structural features:

Bilateral free remake of the door opening with the forward and reverse flow off the role, doorway pages from the left and right door pages, one for the use of doorway pages and buoyancy in the water pressure inside and outside the door leaf page errand door open or closed.

Advantages of bilateral free remake of the door:

a, no suspension configuration weight;

b, doorway pages in the water flow is turned on, doors open page to the right and left, opening angle large unit of energy loss.

c, the door is closed pages, pages about the same time the door slowly closed-door impact force based on a small seat.

Bilateral free remake of the door installation:

1, the door will be installed with embedded Anchorage gantry welding and pouring two concrete.

2, bilateral free remake of the door during use, pages can be sealed to the door or turn on the water injection chamber door way to change the proportion of pages in order to achieve the best results on.

3, multiple door installation, as a result of lifting conditions need to install a semicolon, should be noted that annotation tags for each door and the door of the portal page to connect with an even, are not interchangeable.

Bilateral free remake of doors Note:

1, door installation, first check all parts of the bolt is caused due to transport handling loose should be tightened if loose.

2, check the portal page with links on the door only if the dislocation surface, only water will be adjusted if the dislocation in the same plane.

3, door installation installation should be used for the whole place to prohibit the portal, doorway pages split installation, to prevent the door leaf deformation.

4, two door before pouring the whole place after looking good before and after lifting, so the correct position, and then with embedded steel weld or.

5-door factory, in order to portal, doorway pages fit the tighter, reducing the installation space, door-door in the upper and lower pressure on the page board installed iron gate on the base of the ramp increase of the top iron wire. On-site installation and after oblique iron card iron wire on the top removed to allow door opening and closing.

6, the pouring of concrete, the flow block the door, doorway pages, inclined railways, baffle gap in the mortar should be removed, to prevent mortar freezing effect opening and closing.

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TEL:0574-88473183 88473649

The main submersible pumps are: submersible mixed flow pump, submersible sewage pump, submersible inclined pump, QHB series submersible axial mixed flow pump, WQK series submersible sewage pump, WQD series submersible cutting pump, WLB series vertical sewage pump, GZ series tubular pump , Pump door and control system equipment.

Add:Yunlong Development Zone, Ningbo,Zhejiang
TEL:0574-88473183 88473649 

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