Surge tank – DA Valve-Quality valve solutions for drinking water, gas supply and water hammer protection

Bladder Surge Tanks-Surge(Water Hammer) Protection System

The bladder surge tank provides full system protection from both positive and negative pressure surges. The bladder in the tank creates a full separation between the air and the liquid; enabling the tank to operate longer and with no required maintenance.
ISO9001/14001/45001/CE Approved / WRAS & ACS Approved / Australian Watermark/BV type approval certificate

The working principle of bladder pressure tank

STEP - 1

Based on the data analysis, the pre-charge pressure of Bladder Surge Tanks is calculated. At this time, there is no water in the airbag of the water hammer protector.

STEP - 2

After opening the valve, water will enter the air bag of the Bladder Surge Tanks under the action of the pipeline pressure and start to compress the air between the bag and the tank.

STEP - 3

Water entering the bladder will gradually compress the pre-charged gas until there is an equilibrium between the pressure of the bladder pressure tank and the pressure of the pipe.

STEP - 4

Once the water pump stops working, the pressure in the pipeline will drop immediately, and the bladder pressure tank will use its own pressure to discharge the water into the pipeline, thus effectively preventing the negative pressure of the pipeline.

STEP - 5

As the pressure can get very low, the water flow will reverse and will enter the bladder pressure tank through the bypass valve, and may oscillate a few times before reaching static.

STEP - 6

When the pump is restarted, the bladder pressure tank will continue to store water until the pressure balance is reached, and then prepare for the next start and stop of the pump again.

Water hammer protection solution expert

Our engineering cases are all over the world to create high-quality and low-cost valve application solutions.

Our production workshop

1 Valve casting production line

Valve casting production line

2 Rough workshop

Rough workshop

3 Fine processing workshop

Fine processing workshop

4 CNAS certification laboratory

CNAS certification laboratory

5 Gate valve workshop

Gate valve workshop

6 Large diameter valve workshop

Large diameter valve workshop

7 Epoxy resin spraying line

Epoxy resin spraying line

8 Hydraulic Computing Laboratory

Hydraulic Computing Laboratory

Our business partner

DA valve is your most trusted partner,The longest cooperation has been 20 years.

Our certification

ISO9001/14001/45001/CE Approved / WRAS & ACS Approved / Australian Watermark/BV type approval certificate

Frequently Asked Questions

In order to avoid your worries, here are some facts you need to know about our cooperation:

What is the payment terms?

We can accept T/T ,DP,DA,L/C payment terms,Any special requirement please feel free to contact us.

What is the packing?

Our valves packed in ply-wooden case,suitable for ocean shipment.

What is the best delivery time?

For normal order delivery time is 25days,The accurate delivery time based on the order quantity.

Can you provide free samples?

Yes,we can provide 1 or 2 pc free samples. and we not bear the express cost.

What is the MOQ?

Our MOQ is 1pc,But we are manufacture,more quantity the price will be more competitive.

You are manufacture or trade company?

We are professional valve manufacture more than 20years. we can produce most of valve in water system.

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