1.Product Introduction

The inner layer of the Variable hole hose material is made of polyester yarn, and the outer layer is made of PVC (or reinforced PVC) and anti-aging additives. The length is customized according to the actual size of the user's pool.

2.Technical parameters

 Oxygen utilization table

Oxygen utilization% (water depth 4 meters, clean water)

Aeration resistance (unit: mm head loss)

3.Product detail

Original: Jiangsu, China

Certification: ISO9001, ISO14001, etc.

Price: Negotiable

Payment term: TT, LC

Delivery date: Negotiable

Packing: export standard

Market: Middle East/ Africa/Asia/South America/Europe/North America

Warranty: 1 year

MOQ: 1 set

4.Equipment characteristics

a. The inner layer of the Fine bubble linear diffuser hose material is made of polyester yarn, and the outer layer is made of PVC (or reinforced PVC) and anti-aging additives. The length is customized according to the actual size of the user's pool.

b. There are air holes on the perimeter surface of the hose, which bulge when aerated, flatten when not aerated by hydrostatic pressure, and the micro-holes are closed. To a certain extent, the problem of sewage recharge is avoided and the blockage problem is solved. Because of the narrow and variable pore width of the hose, the pore width can be changed with the increase or decrease of the air supply, and the sewage can be given a certain stirring power when the oxygen transfer rate is increased, so that the simple aeration becomes more diversified.

c. Sewage treatments are resistant to acid, alkali and aging, without tear, long life and low cost.

d. The diameter of the inner wall of the Variable hole hose is 62.5mm, the wall thickness is about 2mm, the air passage is short and straight, the air pressure loss is small, the distribution of air is uniform, the service area is wide, the aeration intensity is large, there is no dead angle, the oxygen utilization rate and the power efficiency are high.

e. Product curly packaging, low freight, installation is very easy, No hidden danger of leakage, the designer has no worries.

5.Working principle

a.Variable hole hose is a kind of flexible tubular aerator with high efficiency, maturity and low cost, which is developed by our company. Variable hole hose fully embodies the three effects of modern wastewater treatment: aeration, stirring and scouring, and meets the general requirements of "practical", "simple" and "cheap" wastewater treatment. Please.

b. There are air holes on the perimeter surface of the hose, which bulge when aerated, flatten when not aerated by hydrostatic pressure, and the micro-holes are closed. To a certain extent, the problem of sewage recharge is avoided and the blockage problem is solved. Because of the narrow and variable pore width of the hose, the pore width can be changed with the increase or decrease of the air supply, and the sewage can be given a certain stirring power when the oxygen transfer rate is increased, so that the simple aeration becomes more diversified.

c. Variable hole hoses are resistant to acid, alkali and aging, without tear, long life and low cost.

d. The diameter of the inner wall of the hose is 62.5mm, the wall thickness is about 2mm, the air passage is short and straight, the air pressure loss is small, the distribution of air is uniform, the service area is wide, the aeration intensity is large, there is no dead angle, the oxygen utilization rate and the power efficiency are high.

e. Product curly packaging, low freight, installation is very easy, No hidden danger of leakage, the designer has no worries.

6.Application

Various industrial organic wastewater, municipal sewage and domestic sewage, as well as industrialized aquaculture industry..

7.Suggestions for hose design

a. Variable hole hose design parameters: aeration volume 3m₃ / M.H, oxygen utilization rate 12%.

b. The horizontal pipe and the central axis of the hose are on the same horizontal plane. The hose spacing is 400-500 m m, the hose spacing is 300-500 mm from the bottom of the pool, and the service area is 0.5-1 m 2/m. It can be designed according to the different conditions of water quality, load removal and oxygen demand.

c. Variable hole hose controls 6~8 hoses for each valve, with DN120 to 180 horizontal tubes at the bottom. The transverse pipe has the release function of air bag, its caliber > vertical tube and vertical tube line speed is less than 8m/s. Hose length of 6~15 meters is better than 15m recommended double head gas. The aeration intensity of economic operation is generally 2~5 m₃/h m.

d. Variable hole hose in the activated sludge process, the bottom of the tank is fixed with a bracket. The bracket base is made of 40x150mm steel plate, the bracket is made of high-strength 300-500mm round steel, one end is welded with round steel, one end is filed with external thread, the thread length is 20mm, and the bracket is fixed with D70 plastic ring with internal thread. The spacing of the bracket is 600mm.

e. The hose eliminates the fixed bracket in the biological contact oxidation process. The hose is fixed at the lower edge of the lower packing frame, the central axis of the hose is 50 mm from the lower edge of the lower packing frame, and the hose is horizontal and vertical to the packing frame.

f. In SBR method, it is suggested that DN80-DN100 connecting pipe should be added at the end of the hose and DN25 sewage pipe should be used to lead out of the water surface. The outlet of the sewage pipe should be about 200 mm from the water surface, and the sewage pipe should be extended into 2/3 of the connecting pipe.

g. Variable hole hose design reference: aeration hose caliber engineering commonly used o 65. When selecting a 5 meter fan, when the aeration volume is greater than 3m₃/m? H, the water depth generally takes 4 meters.

8.Our Advantages

a. Extensive production experience: we are specialized in Sewage treatment with an experience of 10 years.

b. Complete production facilities: owning precision centerless grinding machine, straightening machine, fine polishing machine, precision lathe, milling and drilling machine, roller press and other advanced equipments. Our technicians will do regular scheduled maintenance on these machines to guarantee them work well. 

c. Strict Physical/Chemical testing procedures: meeting the requirements of the product design and process, providing reliable testing data.

d. Short Delivery time: If one container 15-20 days. We also stock some standard-sized tubes and rods, if you need 3-5 pcs, we can delivery soon.

e. Safe packing: anti-rust oil be spread on tubes and rods before shipping, plastic caps on tube ends to protect inside surface, each rod be protected with cardboard tube. Finally be packed with seaworthy package or in wooden case. 

f. Best after-sale service: Over 60% products are sold to the Southeast Asia, Middle East and Europe, and all products are trusted by domestic and foreign customers.

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