Original Factory Knife Stem Gate Valve - Metal Seated Bi-directional Butterfly Valve – NSEN

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We insist on offering high quality production with good business concept, honest sales and the best and fast service. it will bring you not only the high quality product and huge profit, but the most significant is to occupy the endless market for Slurry Knife Gate Valve , Water Butterfly Valve , Acid Resistance Ball Valve , For anyone who is intrigued in almost any of our solutions or want to talk about a custom made purchase, make sure you sense free of charge to get in touch with us.
Original Factory Knife Stem Gate Valve - Metal Seated Bi-directional Butterfly Valve – NSEN Detail:

NSEN Metal to metal seal Bi-directional Triple offset butterfly valve adopts the structure of “Metal To Metal Seat ring”, i.e. valve’s sealing ring of disc/seat are all metal with hard faced treatment. The solid metal sealing structure could eliminate the problem of of leakage and unstable sealing performance caused by U-type seat or L-type seat. Besides, our specially sealing design could allow the valve operate in differential pressure without reducing of pipe pressure.

• Triple offset geometry

• Integral metal seal ring sealing

• Zero Leakage for both way

• Anti-blow out shaft

• Fire safe design to API607

• Replaceable Seat & Disc Sealing

• 0°-90°control, no jump area

• Friction free


Product detail pictures:

Original Factory Knife Stem Gate Valve - Metal Seated Bi-directional Butterfly Valve – NSEN detail pictures

Original Factory Knife Stem Gate Valve - Metal Seated Bi-directional Butterfly Valve – NSEN detail pictures

Original Factory Knife Stem Gate Valve - Metal Seated Bi-directional Butterfly Valve – NSEN detail pictures


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We aim to find out high quality disfigurement in the generation and provide the most effective services to domestic and abroad clients wholeheartedly for Original Factory Knife Stem Gate Valve - Metal Seated Bi-directional Butterfly Valve – NSEN , The product will supply to all over the world, such as: South Korea, Montpellier, Saudi Arabia, Now we have a excellent team supplying specialist service, prompt reply, timely delivery, excellent quality and best price to our customers. Satisfaction and good credit to every customer is our priority. We have been sincerely looking forward to cooperate with customers all over the world. We believe we can satisfy with you. We also warmly welcome customers to visit our company and purchase our solutions.

NSEN strictly follow the free repair, free replacement and free return services within 18 months after the valve is ex-works or 12 months after being installed and used on the pipeline after ex-works (upon which comes first). 

In the case the valve gets failed due to the quality problem during the use in the pipeline within the quality warranty period, NSEN will provide free quality warranty service. The service shall not be ended until the failure is surely made settled and the valve normally workable as well as the client signs the letter of confirmation.

After expiration of the said period, NSEN guarantees to provide the users with on-time quality technical services whenever the product needs to be repaired and maintained. 

  • Cooperate with you every time is very successful, very happy. Hope that we can have more cooperation!
    5 Stars By Maud from Philadelphia - 2017.09.09 10:18
    The factory has advanced equipment, experienced staffs and good management level, so product quality had assurance, this cooperation is very relaxed and happy!
    5 Stars By Julie from Sudan - 2018.12.28 15:18
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