Nominal diameter: DN150~DN4800

Nominal pressure: PN2.5~PN40

Applicable medium: water, sea water, sediment, water, oil, etc.

Medium temperature: less than 80 degrees centigrade

Valve opening time: 10~120 seconds (adjustable)

Fast closing time: 1.5~30 seconds (adjustable)

Slow down time: 6~120 seconds (adjustable)

Fast angle: 70 degrees + 10 degrees.

Slow angle: 20 degrees + 10 degrees.

Minimum flow resistance coefficient in full open state: 0.1

Optional control power supply: AC220V, DC220V, DC110V, DC24V

Hydraulic control slow-closing butterfly valve is a relatively advanced pipeline control equipment at home and abroad, mainly installed in the turbine inlet of hydropower stations, used as turbine inlet valve; or installed in water conservancy, power, water supply and drainage and other types of pump outlets, to replace check valves and gate valves. When working, the valve cooperates with the main engine, according to the principle of hydraulic transition process, through the effective setting of electro-hydraulic control program, realizes the reliable cut-off of the pipeline, effectively eliminates the water hammer of the pipeline, and realizes the non-electric automatic shut-off, which plays a role in protecting the safety of the pipeline system.

Intelligent heavy hammer and storage compound hydraulic slow-closing butterfly valve produced by our company uses the potential energy of heavy hammer as the power source of automatic valve closing, adopts PLC intelligent control system, and can be installed with manual and automatic locking device according to user's requirements. The flow resistance coefficient is small, the degree of automation is high, the function is complete, and the performance is stable and reliable. On the basis of collecting, researching and summarizing the performance of similar products at home and abroad, a new generation of intelligent energy-saving products has been developed by introducing a number of research achievements in the fields of valves, hydraulic and electrical.

The best quality, first-class service Qigao creates more value for you!

"Qigao Valve" expects to continuously improve service quality and strive for excellence. "Sincere service" is the eternal theme of "Qigao". "Qigao" strictly followsIS09001-2000 Quality system certification requirements, strict quality control, responsibility to people, to ensure the healthy operation of production, sales and service. Strengthen communication with users and provide quality products to our customers with perfection and perfect service. Hereby our factory makes the following commitments:

Product Standards：

Products in strict accordance with ChinaGB、HG Standard and USAPISuch as standard design, manufacturing, acceptance. The hardness of the sealing surface meets the requirements of the state and the width exceeds the national standard.

pre-sale service：

Product introduction, technical exchange, non-standard product design, troubleshooting。

Sale service：

A trustworthy contract guarantees timely delivery and keeps in touch with customers. For special or duplicate products, our factory arranges technicians to use and troubleshoot the products for users.

After sales service：

1、"Qigao" brand product quality period is from the factory12In the month, the implementation of the "three guarantees" service (return, replacement, warranty).

2、During the use of our products, our factory regularly organizes technical and quality inspection personnel to visit and consult users for feedback on product quality, usage status and improvement opinions, so as to further improve product quality.

3、Respond quickly to the quality of user complaints, after-sales service personnel rushed to the scene in 24-36 hours (48 hours outside the province).

4、For after-sales service, users are required to fill out the quality feedback information form after the service and make an appraisal opinion in order to improve the service quality of Qigao.

1、If the customer has special requirements for the product, the following instructions must be provided in the order contract.：

a、Structure length；

b、Connection Type；

c、Nominal diameter, full diameter, reduced diameter, pipe size;

d、Operating medium and temperature, pressure range；

e、Tests, inspection standards and other requirements

2、The factory can configure various types of driving devices according to customer's specific requirements.。

3、If the type and model of the valve are determined by the customer, the customer shall correctly state the meaning and requirements of the model and sign the contract under the condition that the supplier and the buyer understand each other.

4、For futures and order customers, please call us in advance to tell the required valve model, specification, quantity, delivery time and location, and timely transfer to the factory account according to the total 30% deposit or full payment. The rest of the payment is pending. Import before shipment to arrange delivery in time.

Order Process：

1、Customer purchase list fax to021-33872143，Or call us 021-33872141

2、Receive customer purchase list, provide valve model selection and quotation (price list)。

3、Specific agreement: delivery date, special requirements, etc.。

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Sale service：

Trustworthy contract, guarantee timely delivery, keep in touch with customers at any time。

For special or duplicate products, our factory arranges technicians to use and troubleshoot the products for users.

After sales service：

1、"Qigao" product quality period is from the factory12Month, practice“Three packs”Service (return, replacement, warranty)。

2、During the use of our products, our factory regularly organizes technical and quality inspection personnel to visit and consult users for feedback on product quality, usage status and improvement opinions.，
In order to further improve product quality。

3、Respond quickly to the quality of user complaints, after-sales service personnel24-36Hours (outside the province48Hour) rushed to the scene。

4、For after-sales service, the user is required to fill out the quality feedback information form after the service and make an appraisal opinion in order to improve the service quality of “Qigao”.。