Tungsten Carbide Roll Rings, also known as hard alloy roller ring, has been widely used in the rolling production of high-speed wire, bar, threaded steel, seamless steel pipes, etc. due to its good wear resistance, high-temperature hardness, heat fatigue resistance, thermal conductivity, and high strength. Tungsten Carbide Sleeve,Tungsten Carbide Roller, Steel Rebar Rolling,Steel Wire Rod Rolling,WC Roller Luoyang Golden Egret Geotools Co., Ltd , https://www.hvofpowders.com
Materials of main parts
Name of parts
Body
Seat ring
Stem,Worm
Disc
Axis guide
Sealing
D371X-10
Gray cast iron
Duna-N rubber
2Cr13
Stainless steel
Ductil cast iron
Aluminium bronze
Duna-N rubber
D371X-10Q
Ductile cast iron
D371X-10C
WCB
Cast steel
Nominal pressure PN
 Testing pressure
Ps(MPa)Working temperatureºC
Working temperatureºC
Applicable medium
Shell test pressure
Seal test pressure
10
1.5
1.1
1.0
              ≤135
Water, Stem, Petroleum, Acid,Alkah,etc
16
2.4
1.8
1.6
The main size of apperance and weight
Features:
1. the double eccentric design makes the friction free transmission between the sealing surfaces extend the service life of the valve
2.Ingenious wedge design makes the valve have more and more close automatic sealing function, and there is compensatory and zero leakage between the sealing surfaces
3..Small volume, light weight, easy operation and easy installation
4. Simple and compact construction,quick 90 degrees on-off operation.
5. Miniminzed operating torque,energy,saving.
6. Flow curve tending to straight line. Excellent regulation performance.
7. Long service life.Standing  the test of tens of thousands opening/closing operations.
Specialized production scale
The company has no box modeling automated production lines, Product appearance, size precisio highdensity, good sealing performance, the produc won the majority of user spraise.
Finished product workshop
sales service
Cumently, Our products have already exported to America, France, Australla, Italy and 20 other countries and regions. Our company insists on the concept of " Top Quality and Credit First" Which are carried out throughout the R&D, production, marketing, service and the like. 
The use of our company valves in large factories
Our products are superior in quality and moderate in price and are sure to be saleable in Major factories at home and abroad, and our company has set up a number of tough emergency service team, on-site experienced engineers and senior technicians, arrived on the scene in the fastest time for any problems, maintenance and replacement. Besides, we are in a position to accept orders against customers samples specifying design, specifications and packaging requirements.
.FAQ:
1. What is your main products?
Our main products are Ball valve, Butterfly valve, Gate valve, Globe valve,Wear-resistant elbow,Ceramic pipe , other valve, and made by casting or forged material.
2. Is samples available?
Yes, sample order is available for quality check and market test. But it is not free.
3. Do you have any products in stock?
Depends on your request, we have standard models in stock. Some special products and big order will be newly casting according to your order.
4. How do you guarantee the quality of products?
Quality is priority, we always attach the importance to quality control from the beginning to the end of the production.Every product will be fully assembled and carefully tested before painting, packing and shipping.
5. Competitive Price:
 We are the manufacturing company which not only has our own manufacturing workshop, but the casting company as well. We provide the straight factory price and service to our customer.
6. Regional Sale:
We provide specialized sales service refers to different kind of region all over the world. Each sales team member is good at the local language and well experienced to the responsible market.
Contact Us
1.Contact Name :Â Vicky Xu
2.Mobile phone :Â +86-15137162879
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   Thanks so much for you taking time to browse our products. Any further questions, please feel free to contact us and we are ready to so service for you   Â
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The Tungsten Carbide Roll Rings we produce mostly come in two series: WC Co and WC Co Ni Cr, with Co and Co Ni Cr as binders ranging from 6wt% to 30wt%. From a usage perspective, hard alloy rollers have good comprehensive mechanical properties, with a bending strength of over 2200 MPa and an impact toughness of (4-6) × At 10 ^ 6J/m ^ 2, the Rockwell hardness (HRA) can reach 78~90. During the high-speed wire rolling process, the single groove steel passing amount is much higher than that of cold hard cast iron or high-speed steel rollers.
High Quality Cast Iron Various Kinds Butterfly Valve for Industry
Model NO.: D71X
Work Pressure: Low Pressure (Pn<1.6mpa)
Working Temperature: Normal Temperature (-40°C<T<120°C)
Material of Seal Surface: Soft Sealed
Valve Body: Casting
Application: Industrial Usage, Water Industrial Usage
Norminal Pressure: 10/16
Transport Package: Standard Exporting Plywood Case
Specification: DN50~DN500
Origin: Zhengzhou City, China
  The clamp butterfly valve is simple in structure, small in size and light in weight, It consists of only a few components. And it can be opened and closed quickly only by rotating 90 degrees. The operation is simple, and the valve has good fluid control characteristics. When the butterfly valve is in full opening position, the thickness of the butterfly plate is the only resistance when the medium flows through the valve body. Therefore, the pressure drop produced through the valve is very small, so it has a better flow control characteristic. Butterfly valve has two kinds of seal: elastic soft seal and metal seal. The elastic soft sealing valve can be set on the valve body or attached to the butterfly plate.