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  • Excellent quality Disc Check Valve - Ball Check Valve – Nortech

    Excellent quality Disc Check Valve - Ball Check Valve – Nortech

    Product Detail: What is Ball Check Valve? Ball Check Valve functions by means of a ball that moves up and down inside the valve. The seat is machined to fit the ball, and the chamber is conically shaped to guide the ball into the seat to seal and stop a reverse flow. If the pump capacity is not sufficient it is possible to choose a lighter ball, and if water hammer occurs when the pump stops, it may be solved by selecting a heavier ball. Ball Check Valve Technical Specifications Our advantage...
  • Chinese wholesale Api599 Plug Valve - 3 way plug valve – Nortech

    Chinese wholesale Api599 Plug Valve - 3 way plug valve – Nortech

    What’s the 3 way plug valve ? 3 way plug valve  is a kind of valve with closing parts or plunger shape, which is opened or closed by rotating 90 degrees so that the port on the valve plug is the same or separate from the port on the valve body. 3-way,4-way plug valve is applicable to change the media flowing direction or to distribute the media, that are used in various industries such as petroleum,chemical industry, pharmacy, chemical fertilizer, power industry etc under nominal pressu...
  • Excellent quality Pneumatic Butterfly Valve - Double Eccentric Butterfly Valve rubber seated – Nortech

    Excellent quality Pneumatic Butterfly Valve - Double Eccentric Butterfly Valve rubber seated – Nortech

    What’s the double eccentric butterfly valves? Double Eccentric Butterfly Valve is an innovative double offset design product with advanced world leading technology. This butterfly valve has a unique structure with ultra reliable sealing performance, wide working conditions and low operation torque. The double eccentric  butterfly valve`s sealing ring is made of elastomer fit in disc, it availabe be used in unidirectional sealing application, Commonly used in the water or municipal water...
  • Quality Inspection for Marine Gate Valve - Parallel Slide Gate Valve – Nortech

    Quality Inspection for Marine Gate Valve - Parallel Slide Gate Valve – Nortech

    What is the parallel slide gate valve? Parallel Slide Gate Valve is a special design of gate valve. It’s an alternative to the traditional flexible wedge type gate valves. The disc is in two halves, compressed spring Inconel X750 loaded, that seat on parallel seat rings. The disc “slides” in contact with the seats, hence the name. The discs are in permanent contact with the seat rings, getting a tight seal due to the horizontal inconel spring located in between and without the wedging sy...
  • Low price for Free Stem Butterfly Valve - Resilient seated Butterfly Valve lug type – Nortech

    Low price for Free Stem Butterfly Valve - Resilient seated Butterfly Valve lug type – Nortech

    What is Resilient Seated Butterfly Valve Lug Type? Resilient Seated Butterfly Valve,is also referred to as “concentric”,”rubber lined” and “rubber seated” butterfly valve,has a rubber (or resilient) seat between the external diameter of the disc and the internal wall of the valve. Butterfly valve is a quarter-turn valve that rotates 90 degrees to open or close the media flow. It has a circular disc, also known as the butterfly, found at the center of the body that functions a...
  • Best quality Gas Plug Valve - Lift plug valve – Nortech

    Best quality Gas Plug Valve - Lift plug valve – Nortech

    What is Lift plug valve ? Non-lubricated metal seated LIFT PLUG VALVES were developed over 80 years ago to solve problems with existing valves in catalyst cracking service. As the valves preformed so well in this service it was also recommended for use in other hash applications in the chemical & petrochemical industry.As the valves preformed so well in this service it was also recommended for use in other hash applications in the chemical & petrochemical industry. To explain why...
  • Reasonable price Stainless Steel Floating Ball Valve - Double Block And Bleed Ball Valve – Nortech

    Reasonable price Stainless Steel Floating Ball Valve - Double Block And Bleed Ball Valve – Nortech

    Product Detail: What is Double Block And Bleed Ball Valve ? Double Block And Bleed Ball Valve is a combination of one or more block/isolation valves, usually ball valves, and one or more bleed/vent valves, usually ball or needle valves. The purpose of the block and bleed valve system is to isolate or block the flow of fluid in the system so the fluid from upstream does not reach other components of the system that are downstream. This enables the engineers to bleed off or vent or drain the re...
  • Cheapest Price Atex Floating Ball Valve - Fully Welded Ball Valve – Nortech

    Cheapest Price Atex Floating Ball Valve - Fully Welded Ball Valve – Nortech

    Product Detail: What is Static Balancing Valve ? Nortech Fully Welded Ball Valve is developed by the engineering technical personnel from the factory with more than 30 years experience in design and manufacture of high-pressure valve and international latest technical standard,it is mainly applied for the long distance pipeline transportation of petrol,natural gas and gas pipeline system in cities.Because of the special characteristics of underground type ball valve,the capability to endure p...
  • New Arrival China Rubber Lined Butterfly Valve - Double Eccentric Butterfly Valve rubber seated – Nortech

    New Arrival China Rubber Lined Butterfly Valve - Double Eccentric Butterfly Valve rubber seated – Nortech

    What’s the double eccentric butterfly valves? Double Eccentric Butterfly Valve is an innovative double offset design product with advanced world leading technology. This butterfly valve has a unique structure with ultra reliable sealing performance, wide working conditions and low operation torque. The double eccentric  butterfly valve`s sealing ring is made of elastomer fit in disc, it availabe be used in unidirectional sealing application, Commonly used in the water or municipal water...
  • Good Quality Check Valve - Cast Iron Swing Check Valve – Nortech

    Good Quality Check Valve - Cast Iron Swing Check Valve – Nortech

    What’s cast iron swing check valve? Cast Iron Swing Check Valve consists of a valve body,a bonnet,and a disc that is connected to a hinge. The disc swings away from the valve-seat to allow flow in the forward direction,and returns to valve-seat when upstream flow is stopped,to prevent back flow.it allows full,unobstructed flow and automatically closes as pressure decreases.These valves are fully closed when the flow reaches zero and prevent back flow.Turbulence and pressure drop within ...
  • Hot-selling Full Port Plug Valve - Soft Sealing Sleeve Plug Valve – Nortech

    Hot-selling Full Port Plug Valve - Soft Sealing Sleeve Plug Valve – Nortech

    Product Detail: What is Soft Sealing Sleeve Plug Valve ? Soft Sealing Sleeve Plug Valve  applicable to the cutting and connection of pipelines medium that are used in various industries such as petroleum,chemical industry, pharmacy, chemical fertilizer, power industry etc under nominal pressure of PN1.6-16MP ,and working temperatures of -20~180°C Soft Sealing Sleeve Plug Valve Technical Specifications 1)ANSI Series Nominal Size Range: NPS 1/2” ~ 14” Pressure Rating: Class 150LB ~ 900LB Connec...
  • 2020 China New Design Hydraulic Balancing Valve - Static Balancing Valve – Nortech

    2020 China New Design Hydraulic Balancing Valve - Static Balancing Valve – Nortech

    Product Detail: What is Static Balancing Valve ? Static Balancing Valve  also known as balancing valves, manual balancing valves, digital lock balancing valves, double-position regulating valves, are used to solve the problem of branch pressure differential balance in pipeline design ball. Static Balancing Valve make it possible to introduce appropriate pressure drops so that each branch of the hydraulic circuit has the required design flow rate. They are equipped with suitable pressure ports...
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