· Structure design is more reasonable
· To eliminate the pressure more effectively
· More high quality parts materials
· The sealing is more reliable
· Drving method is more reliable
· Fuild resistant is smaller
· More reliable work efficiency
· Batter eliminate cavitation
· A more perfect regulation characteristics
· Face-to-face length: acc. to EN 558
· With flange ends on both sides acc. to EN 1092-2
· Control valve in straightway type
· With customized control device depending on operating conditions
· Low actuating torque due to pressure balanced valve piston
· Rotationally symmetrical flow guidance
· Annular flow cross section in each position
· Axial movement of the plunger by means of crank gear mechanism
· With self-locking worm gear unit including position indicator
· With electric actuator
· Elastic profile sealing ring located in the no-flow zone for high durability
· Wear-resistant, corrosion-resistant and infiltration-proof piston guides in the body by micro-finished bronze weld overlay

Externally controlled control valve with annular flow cross-section for the continuous regulation of high pressure differences and flow rates. Long service life as the bearings do not come into contact with the medium. Wear-resistant, corrosion- and infiltration-proof guide rails due to hard-facing. This ensures low operating forces and prevents jamming of the piston. Suitable for use in water treatment, water distribution, in dams, power plants, industry and in pressure management.

1.Can I have a sample order for valve?
A: Definitely Yes. We welcome your sample order for test and quality check. Mixed samples are acceptable.
2. Can you provide OEM or ODM service?
A: Yes, we have professional research & development team. The products can be manufactured as per your request.
3. Can you provide the relevant documentation and certificate?
A:Yes, we can provide you with the documentation and certificate you need , ISO9001:2000 international quality system certification, (CE)certification of the European Community, Det Norske Veritas (DNV) factory certificate, Lloyd's Register (LR) factory certificate, China Classification Society (CCS) quality system certificate and the FM/UL certification of the US, Bureau Veritas(BV) ,American Bureau of Shipping(ABS) etc. Of course we can also provide you the test Report; Certificate of Material Analysis; Certificate of Origin; and other export documents if required.
4. What is your terms of delivery?
A: We accept EXW, FOB, CIF, DAP etc. You can choose the one which is the most convenient for you.
5. What's the package and how do you ship the goods?
A: Usually sea worthy plywood cases. We usually ship by sea. Train and air delivery are also optional.
6. How to deal with after sales ?
A: warranty time : 12 months from the shipment ; and we will be responsible for all the quality problems. Longer warranty period could be provided with detailed request and discussion.
7. What is the average lead time?
A:For samples, the delivery time is about 2-5 days. For batch production, the lead time is about 15-60 days after receiving the deposit payment. We can provide production schedule and related photos every two weeks. The lead times become effective when (1) we have received your deposit, and (2) we have your final approval for production drawings. If our lead times do not work with your deadline, please send your requirements with your sale. In all cases we will try to accommodate our production plan to your needs.
8. Why choose us?
A:1 Genuine products with excellent quality and competitive price. 
2,Cooperating with customers all over the world from more than 60 countries and regions, knowing the markets very well. 
3,We have been specializing in flow control area for more than 15 years. Everyone can be rest assured working with us. 4,After-sale services will be highly-satisfying. Any problem and feed backs will be answered in short time.
9: How can I trust your company?
A: We are verified Golden supplier and creditable company on Made-In-China, we are focusing on the long term relationship with customers, we have worked with thousands of customers since company built 15 years ago, Including Fortune 500 companies. Customers always make highly complementary remarks.