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China wholesale Butterfly Valve Factory China - 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... -
Factory wholesale Lift Check Valve 2500lbs - ASME Swing Check Valve – Nortech
Product Detail: What is Swing Check Valve ? Swing Check Valve is mounted with a disc that swings on a hinge or shaft. The disc swings off the seat to allow forward flow and when the flow is stopped, the disc swings back onto the seat to block reverse flow. The weight of the disc and the return flow has an impact on the shut-off characteristics of the valve. Swing check valves with lever and weight or lever and spring. Swing Check Valve Technical Specifications Our advantages of Swing Check V... -
Excellent quality Dbb 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... -
Excellent quality Globe Valve Welded Flange - Forged Steel Globe Valve – Nortech
Product Detail: What is Forged Steel Globe Valve? Forged Steel Globe Valve is the most widely used valve. It is so popular because the friction between the sealing surfaces during opening and closing is small, it is more durable, the opening height is not large, the manufacturing is easy, and the maintenance is convenient. Nortech Forged Steel Globe Valve is available in two bonnet designs. The first design is the Bolted Bonnet, with male-female joint, spiral wound gasket, made in F316L/gra... -
Factory wholesale Lift Check Valve 2500lbs - Rubber Seat Dual Plate Check Valve – Nortech
What’s the rubber seat dual plate check valve? The Dual Plate Check Valve is an all purpose non return valve that is much stronger, lighter in weight and smaller in size compared to a conventional swing check valve or life check valve.it employs two spring-loaded plated hinged on a central hinge pin. When the flow decreases, the plates close by torsion spring action without requiring reverse flow.This design offers the twin advantages of No Water Hammer and Non Slam simultaneously.... -
PriceList for Bellows Globe Valve - ASME Globe Valve – Nortech
Product Detail: What is ASME Globe Valve? ASME Globe Valve is a mechanism used to control or stop the flow of liquid or gas through a pipe. The seat of a globe valve is in the middle of and parallel to the pipe, and the opening in the seat is closed off with a disk or plug. Globe valves can be structured to handle flow in either direction. ASME Globe Valve Technical Specifications 2″-12″,Class150-Class1500 BS1873/ASME B16.34 Face to face to ANSI B16.10 Body/bonnet/disc:Carbon Ste... -
Hot sale Wedge Gate Valve - API 600 Large Size Gate valve – Nortech
Product Detail: What is API 600 Wedge Gate valve ? The opening and closing parts of the API 600 Wedge Gate valve are the gate, the direction of motion of the gate is perpendicular to the fluid direction. The wedge gate valve can only be fully opened and fully closed and can not be adjusted and throttled. It consists of a valve body, a bonnet, and a disk that is connected to a hinge. The disk swings away from the valve-seat to allow flow in the forward direction, and returns to valve-seat whe... -
Best Price on Hydrant Gate Valve - Forged Steel Gate Valve – Nortech
What’s the API602 forged steel gate valve? API602 Forged Steel Gate Valve is a special design of small sizes gate valves. it has all the characteristics of gate valves.as normal,the opening and closing parts are the gate,in shape of a wedge,that’s the reason that they are named as wedge gate valve.the direction of motion of the gate is perpendicular to the fluid direction. The wedge gate valve can only be fully opened and fully closed and can not be adjusted and throttled.The... -
Bottom price Motorized Trunnion Ball Valve - 3 Piece Floating Ball Valve – Nortech
What’s 3 piece floating ball valve? The 3 Piece Floating Ball Valve has two body joints which means the body is made out of of three pieces, giving rise to the name “three piece. This 3 piece body design allows a larger ball to be installed at the time of manufacture,making this a full bore ball valve (Full port). Nortech 3 Piece Floating ball valve is a new product manufactured by transformation the common valve and adoption of the up-to-date international standard. Main features 3 pi... -
Hot Sale for Full Port Gate Valve - Metal Seated Cast Iron Gate Valve – Nortech
Product Detail: What is Metal Seat Cast Iron Gate Valve ? Metal Seat Cast Iron Gate Valve is an open/close a gate, direction and perpendicular to the direction of flow of the gate valve can only be fully open and close, unwell door parameter varies, usually for 5 °, medium temperature is not high for 2 ° 52 ‘.To improve its technology, to make up for the sealing surface Angle deviation in the processing process, this kind of ram is called elastic ram. Metal Seat Cast Iron Gate Valve Tec... -
New Delivery for Sewage Gate Valve - Bellows Seal Gate Valve – Nortech
What’s the bellows seal gate valve? Bellows Seal Gate Valve was invented to meet strict requirements of tightness and severe working conditions. except for the conventional packing assembly as all the gate valve,the bellows seal gate valve also has a bellow packing device. it’s completely different approach to packing is a device called a bellows seal,an accordion-like metal tube fastened to the valve stem and to the bonnet,forming a leak-proof seal with negligible friction a... -
Factory wholesale Actuated 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...
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