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  • Dual plate check valve Shipment

    Dual plate check valve  The production of Dual plate check valve is finished today , Waiting for shipment .     Nortech is one of the leading industrial valve manufacturers in China with quality certification ISO9001. Major products: Butterfly Valve, Ball Valve,Gate Valve, Check Valv...
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  • Triple Eccentric Butterfly Valve Ready for shipment

    Triple Eccentric Butterfly Valves are ready for shipment  to Europe ! . Triple eccentric butterfly valve,also known as triple offset butterfly valve,is one kind of high performance butterfly valves,designed for working conditions of high pressure,high temperature,and high frequencies of open and ...
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  • What are the reasons for the damage of the valve sealing surface?

    What are the reasons for the damage of the valve sealing surface The valve sealing pair is in a relatively static state without relative movement, which is called static seal. The surface of the seal is called static sealing surface. The reasons for the damage of the static sealing surface are s...
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  • Function and classification of check valve (2)

      2. lift check valve For the check valve whose disc slides along the vertical center line of the valve body, the lift check valve can only be installed on the horizontal pipeline, and the disc on the high-pressure small-diameter check valve can adopt a ball. The body shape of the lift check v...
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  • Function and classification of check valve (1)

      Check valve definition Check valve refers to the valve that automatically opens and closes the valve disc depending on the flow of the medium itself to prevent the backflow of the medium, also known as check valve, one-way valve, reverse flow valve, and back pressure valve. Check valve action...
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  • Classification characteristics of hydraulic control valves

    Hydraulic control valve is a water pressure controlled valve, which consists of a main valve and its attached conduit, pilot valve, needle valve, ball valve and pressure gauge. According to different purposes, functions and places of use, it can be developed into remote control float valve, pres...
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  • Butterfly Valve ,check valves and gate valves ready for shipment

    2*40GP Butterfly valve, check valves and gate valves are ready for shipment to Europe  !   Our advantages : 1. With Directive 97/23/EC 2. WRAS Certified for drinking water(UK and Commonwealth countries) 3. ACS Certified for drinking water(France) 4. More than 15 years of OEM services for este...
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  • DIN Y Strainer Shipment

    DIN Y Strainer    Body in GGG40    Strainer 304 Mesh 0.8mm   With drain plug   Bolt in A2 and Drain plug BSP screwed   Painting Epoxy   T°C using up to 120°C   Seal Graphoil   Flange NP 16 The production of DIN Y Strainer is finished today , Waiting for s...
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  • Shipment of Double Eccentric Butterfly Valve to Europe

    12 pallets of double economic butterfly valve ready for shipment  to Europe !      Nortech is one of the leading industrial valve manufacturers in China with quality certification ISO9001. Major products: Butterfly Valve, Ball Valve,Gate Valve, Check Valve, Globe Vavlve,Y-Strainers, ...
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  • Y-stainer introduction and testing principles

    Introduction to Y-Stainer Y-stainer is an indispensable filter device for conveying media in piping systems. Y-stainer is usually installed on the inlet end of a pressure relief valve, pressure relief valve, constant water level valve or other equipment to remove impurities in the medium to prot...
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  • Three-piece ball valve product difference

    Three-piece ball valve product difference One – piece, two – piece, three – piece ball valve fundamental difference in the valve body structure. One-piece ball valve is reduced diameter, by a plug head will be fixed sphere, flow is relatively small; Two-piece ball valve is full...
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  • What is knife gate valve?

    [Knife gate valve] NORTECH brand. Flange knife gate valve, wafer knife gate valve, sewage knife gate valve, pneumatic knife gate valve standard, structure drawing, specifications and models, dimensions, working principle and product manual. To provide customers with high quality, high performanc...
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