Product Introduction:

The composite high-speed inlet and exhaust valve is the core protective valve for long-distance pressure water supply and drainage pipelines. 

It integrates three functions: high-speed exhaust for large-diameter pipes, negative pressure suction, and continuous small-volume exhaust. 

It is composed of the main exhaust valve body and the side-channel small-volume exhaust assembly. 

It perfectly solves common pipeline faults such as air blockage, water hammer, negative pressure collapsed pipe,pump cavitation,and pipeline vibration and noise. 

It is widely used in municipal water supply, water diversion projects, fire protection main pipes, pumping stations, reclaimed water, industrial circulating water pressure pipelines.

The main valve body material is mainly ductile iron QT450. The inside and outside are painted with epoxy resin blue for anti-corrosion. The flange connection is compatible with large-diameter main pipes.

Advantages:

1.Three-in-One Composite Function:

Different from the single high-speed exhaust valve and the single micro-exhaust valve , it simultaneously realizes fast charging exhaust, negative pressure replenishment, and stable micro-exhaust, and is suitable for all working conditions of the pipeline.

2.No-water Maintenance Design:

The side line is equipped with a isolation ball valve. In case of a fault in the small exhaust unit, it can be repaired online without affecting the water supply of the main pipeline network.

3.Anti-clogging Design:

The top of the main valve is equipped with a stainless steel filter screen + the Y-type filter at the branch line for dual protection. It is suitable for the sand and impurity conditions of the municipal pipeline network in the wild. The valve is less likely to get stuck or malfunction.

4.Corrosion Resistance and Durability:

The valve body is made of ductile iron + the inner and outer epoxy powder coating. It is resistant to the corrosion of tap water and neutral industrial water, and can be used for a long time in outdoor underground and open-air pump rooms.

5.Water Hammer Protection:

The rapid intake of air cancels the negative pressure, significantly reducing the negative pressure water hammer caused by stopping the pump and closing the valve, protecting the pipeline and the subsequent equipment.

Specifications:

Size: DN15-DN300

Pressure: PN10/16, Class150,JIS6K/10K

Flange Standard:DIN,BS,ISO,ANSI,AS,JIS

Materials:

Body : Ductile Iron

Float Ball:Stainless Steel

Seal : EPDM

Characteristic:

Applicable Medium: Water, Oil, Gas

Applicable Temperature:0-80℃

All valves are equipped with professional export protective packaging. 

With protective caps on the sealing surfaces, rust-proof treatment, and shock-absorbing material filling to ensure intact transport; the loading is secure and safe. 

We can also customize packaging according to customer requirements.

Regarding transportation methods, we can provide appropriate transportation options based on the cargo requirements and the customer's timeliness requirements. 

Common transportation methods include: sea freight, air freight, land freight, and express delivery.