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  • OK VALVE wishes Chinese people around the world a happy Mid-Autumn Festival

    OK VALVE wishes Chinese people around the world a happy Mid-Autumn Festival

      OK VALVE wishes Chinese people around the world a happy Mid-Autumn Festival.  
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  • Installation instructions for butterfly valve piping

    Installation instructions for butterfly valve piping

    Installation instructions for butterfly valve piping   1. Weld the flange to the pipe and cool to ambient temperature before mounting the valve to the flange. Otherwise, the high temperature generated by welding will affect the performance of the elastic seat. 2. Edges of welded flanges must...
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  • Working principle of check valve

    Working principle of check valve

    I. Working principle of check valve Check valve refers to relying on the flow of the medium itself and automatically open and close the disc, used to prevent the medium backflow valve, also known as check valve, one-way valve, reverse flow valve and back pressure valve. Check valve belongs to a k...
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  • What is the difference between open stem gate valves and dark stem gate valves?

    What is the difference between open stem gate valves and dark stem gate valves?

    Gate valves can be divided into: 1, open rod gate valve: Open stem gate valve: The stem nut is on the cover or bracket. When opening and closing the gate plate, the stem can be lifted or lowered by rotating the stem nut. This structure is favorable to stem lubrication, the degree of opening and c...
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  • 36 Inch Lug Butterfly Valve Torque Test

    36 Inch Lug Butterfly Valve Torque Test

    36 Inch Lug Butterfly Valve Torque Test   Ok Valve is a valve factory with more than 20 years of export experience,Ok Valve makes detailed records and quality assurance commitment for each order of customers. Ok Valve adopts advanced static torque testing instruments to create special torque test...
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  • Audit -NSF.ANSI.CAN 61.372. – Ninjin, China – 1023 — 07.07.2022-

    Audit -NSF.ANSI.CAN 61.372. – Ninjin, China – 1023 — 07.07.2022-

    NSF.ANSI.CAN 61.372. -OK VALVE China Our factory has been reviewing NSF certification with customers since 2015. The review was performed by ALS Group USA.Grop. Since Tom, the reviewer of COVID-19, could not come to China and the OK VALVE factory for on-site audit, we chose the video + text audit...
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  • Function and principle of knife gate valve

    Knife gate valve has a shearing function to scrape off the sticky material on the seal face and remove debris automatically. The stainless steel gate prevents the seal from leaking due to corrosion. This article introduces the function and principle of knife gate valve. Role of knife gate valve, ...
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  • Which gear is used in butterfly valve?

    Butterfly Valves are easy and quick to open. A right angle rotation of the handle provides a complete closure or opening of the butterfly valve. Large Butterfly Valves are usually comprised of a gearbox, where the hand wheel by gears is joined to the stem. This gives ease to the operation of the ...
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  • Check Valve-A valve to block the backflow of medium

    Check valve A valve to block the backflow of medium Check valve refers to a valve with a circular valve disc as its opening and closing part and acting by its own weight and medium pressure to block the backflow of medium. It is an automatic valve, also known as check valve, one-way valve, return...
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  • knife gate valve

    Introduction: Knife gate valve is also known as knife gate valve, knife gate valve, slurry valve, mud valve, its opening and closing parts are gate, the direction of the movement of the gate is perpendicular to the direction of the fluid, by cutting fiber material blade gate to cut off the medium...
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  • Stainless steel pneumatic butterfly valve

    Stainless steel pneumatic butterfly valve is a kind of high-performance and long-life butterfly valve, which is mainly composed of pneumatic actuator and stainless steel butterfly valve. The valve body and disc plate are made of stainless steel, with the characteristics of high temperature resist...
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  • What are the advantages of stainless steel knife gate valve

    At present, stainless steel knife gate valve has been widely used in industrial production, it is a kind of excellent performance gate valve, compared with other materials, its advantages are particularly prominent, in the applicability of media, stainless steel knife gate valve has incomparable ...
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