expanded metal

AQE Gate valves are used to limit the flow of fluid flowing straight through the pipeline. This is an effective and reliable way to stop fluid flow. The Slab Gate Valve  can be fully opened or fully closed. The slow opening and closing of the valve helps avoid hydraulic hammers, which can damage the pipes connected to the valve. Gate valves are not used for throttling, so do not let them half open. The gate valve has 3 important parts. They are doors, stems and hoods.

The gate can be used in several variations in a gate valve. You may occasionally use knife doors, or if you use crude oil, you may see flat doors. However, in the marine industry, the most common gate is the wedge. This type of gate valve wholesale uses a wedge-shaped metal sheet that can be moved into the valve body to prevent fluid flow. This uses metal-to-metal contact to create a positive pressure seal. However, under extremely low pressure (5 psi or lower), the gate valve may leak a little.

Learn more about AQE valve via https://www.aqemachinery.com/

Hebei Huahui Valve Co.,Ltd (Botou Yaxing Fluid Equipment Co.,ltd) was established in 2003, specialize in designing and manufacturing various kinds of high quality valves and accessories, such as: Gate valve, Butterfly valve, Check valve, Strainer, Hudraulic control valve(float valve, pressure reducing valve, pressure relief valve,flow control valve),HVAC balancing valve,Air release valve,Rubber flexible joint and Stainless steel flexible joint,Pipe fittings(unicersal coupling, flange adaptor, repair clamp, saddle…) etc, which used in water supply and sewage system\ fire fighting system, and heating ventilation air conditioning system.
Hebei Huahui Valve Co.,Ltd is located in Botou Industrial Zone,Cangzhou City Hebei Province China.Our workshop occupying 150000 square meters, our manufacturing process include machining, shot blasting ,epoxy powder coating,assembling, testing, packing, which is the whole process of valve production from foundry to finished Products. Welcome old and new customers visit our factory and develop business with us.

HENAN FORWARD STEEL EXPORT CO.,LTD

Tel: +86-371-61310228 You also can visit us by sa514steel.com througth google
Address: Tower-A Room 3106 Kai xuan Plaza zhengzhou city of henan province China
http://sa514steel.com
Email: admin@qfsteels.com
SA240 TP310S Stainless, SA240 309S stainless, SA240 316TI stainless, SA240 304H stainless
1. What we do?
HENAN FORWARD STEEL EXPORT CO.,LTD Stainless warehouse provide ASME SA240 Stainless steel plate Bevel,Groove and cutting disc stainless steel machined parts .we have 1000tons tp316L,tp310s,tp304l,tp321, tp304h, tp316h,tp310h, tp321h,2205, S31803, 410, 430, 409, 443, 439, 310SI2, 316TI Stainless steel plate stock.

Besides that, our factory also provide the CNC Cutting platform and water cutting platform. Disc cutting, special parts cutting, stainless steel bevel and stainless steel groove service. Our machined precision to min 0.2 for the surface of machined.

Our cutting service had approved by Mexico and USA, and Canada Project.

2. Our mainly stainless steel grade for ASME SA240
SA240 TP202,SA240 TP201,
SA240 TP304,SA240 TP304L,SA240 TP304H, SA240 TP304N, SA240 TP304LN
SA240 TP316L,SA240 TP316, SA240 TP316H,SA240 TP316N, SA240 TP316LN,SA240 TP316TI
SA240 TP309S, SA240 TP309H,SA240 TP309,SA240 TP309Cb
SA240 TP310S, SA240 TP310, SA240 TP310H
SA240 TP347,SA240 TP347H,
SA240 TP348,SA240 TP348H,
SA240 TP321, SA240 TP321H
SA240 TP317L,SA240 TP317
SA240 TP444,SA240 TP410, SA240 TP430,SA240 TP443, SA240 TP439

3. Products Service of our unitedsteel warehouse.
Stainless steel plate
Stainless disc steel plate.
Stainless steel cutting
Stainless seamless pipe
Stainless seamless Tube
Stainless welded steel pipe
Stainless machined bevel
Stainless machined groove

4. Our Stainless steel thickness
Stainless plates
0.25mm-150mm thickness
Width: 20mm to 2500mm
Length 20mm to 10000mm
Max weight of each plate 6 tons.
Stainless seamless pipe
outer diameter 3.2-200mm,
Wall thickness 0.5-12.7mm

5. Stainless Production time:
5-8days in usual size.
If you need the bevel and groove stainless parts, we need min extra 7days.

6. Stainless Payment Item for HENAN FORWARD STEEL EXPORT CO.,LTD
TT payment Or 30% TT advance and balance should be paid after BL documents.

7. Why you choose us?
a. The faster production time, and most of production, we can control them in one week if the total weight are not large.
b. Better service, we promise that your inquiry will be sent official quotation in 24hours.
c. Faster delivery, we had owned transport truck department and transport stainless to our port in 24hours.
d. Quality promise processing: PMI Test at each stainless steel plates before delivery. We accept the third party inspection, GL. SGS.BV, DNV, LR,ABS and others.
8. Trade Item:
FOB, EXW, CFR AND CIF
Packages by wooden pallet, delivery by containers.

9. How to contact HENAN FORWARD STEEL EXPORT CO.,LTD?
Your can searh our company name from google or visit sa514steel and qfsteels through searching them at google.

Mr David
0086-371-61310228
admin@qfsteels.com
http://sa514steel.com

Roopam Steel is top manufacturer & supplier of seamless steel pipe welded tubes in ferrous and non ferrous material, Stockist of high quality tubular piping products and accessories in India. Call us for more Info at +91-22-6639 4333.

As a Concertina Razor Wire Suppliers, share it with you.

Feature

Razor barbed wire, also known as scraper barbed wire, is a new type of protective net product developed with strong protection and isolation capabilities. The sharp knife-shaped thorn is formed into a bellows shape by a double-line buckle, which is both beautiful and chilling. Played a good deterrent effect. At the same time, the product has the advantages of beautiful appearance, good anti-blocking effect and convenient construction.

Concertina Razor Wire

Razor-barbed wire is generally used for protection in prisons. Because the blade is sharp and not easy to touch, it has a certain deterrent effect. The razor-barbed wire has a wide range of uses. It can be used for wall protection of residents and can also be used for enclosure. The anti-theft effect of the barbed wire is better than that of ordinary barbed wire, and the price is not high, so the razor barbed wire is more and more widely used.

Razor wire, also known as razor wire, is a new type of protective product developed with strong protection and isolation capabilities.

Stainless steel barbed wire is different according to the different application areas containing nickel. The effect of using 304 stainless steel in a dry indoor environment is quite good. However, if you want to maintain its appearance outdoors in the countryside and cities, you need to wash it frequently. In heavily polluted industrial areas and coastal areas, the surface will be very dirty and even rusty. However, to obtain the aesthetic effect in the outdoor environment, nickel-containing stainless steel is required. Therefore, 304 stainless steel is widely used in curtain walls, side walls, roofs and other construction purposes. However, 316 stainless steel is best used in severely corrosive industries or marine atmospheres.

Razor nets have been widely used in military powerhouses, prisons, government agencies, banks, and living quarters, private houses, villas, doors and windows, highways, railway guardrails, and borders to protect security in various countries around the world.

Our company also has Concertina Razor Wire for Sale, welcome to contact us.

Ductile iron Drainage pipe

Ductile iron Drainage pipe is available in a range of diameters from 80mm to 1600mm and are suitable for both potable water transmission and distribution (in accordance with BS EN 545) and sewerage (in accordance with BS EN 598).

China tongmao ductile pipe is available in a range of diameters from 80mm to 1600mm and are suitable for both potable water transmission and distribution (in accordance with BS EN 545) and sewerage (in accordance with BS EN 598).
Ductile iron Drainage pipe is simple to joint, can be laid in all weather conditions and often without the need for selected backfill. Its high safety factor and ability to accommodate ground movement make it the ideal pipeline material for a wide range of applications.
ductile iron pipeline wholesale have a number of advantages over other pipe materials:
Easy to install
Full range of accessories are widely available
Suited to a host of applications both above and below ground
Strength of the material allows it to withstand significant internal pressure and also makes it less susceptible to impact damage
It has the nature of iron, the performance of steel, excellent corrosion resistance, good ductility and easy installation.
The main components are carbon, silicon, manganese, sulfur, phosphorus and magnesium.

The ductile iron pipe price list is very reasonable.

Cast iron pipe drain pipe、the cast iron sewage pipe and the cast iron gas pipe are widely used.

The wall thickness of the 150mm cast iron pipe is 6mm.

More information.

Copper Mould Tube & Plate

We specially in supplying Copper Mould Tube, Crystallizing equipment of continuous casters, Mould cooling jacket, Repair of Metallurgical Copper Mould Tube, etc.

Equipments & Spare parts for Continuous Casting Machine.

1. Copper mould tube( square, rectangle and round )
2. Crystallizing equipment of continuous casters
3. Mould cooling jacket.
4. repair of copper tube moulds

COPPER MOULD ALLOYS

The copper alloys chosen for the moulds must maintain their physical properties at the operating temperatures of the continuous casting process.

The temperature gradation from the inner wall of the mould to the outside face of the mould can cause serious distortion problems, and Metallurgical Copper Mould Tube is imperative that the correct alloy is chosen for the various operating conditions.

Square Copper mould tube STANDARD MATERIALS

Phosphorus de-oxidised copper

This alloy has been proven to be excellent for the manufacture of moulds in the continuous casting of billets. The main composition of this alloy are Cu +Ag 99.90min, P0.0015 / 0.040.

Copper -Silver alloy

The addition of a small amount of silver, whilst not increasing the melting point of copper, does increase the recrystallisation temperature by almost 100℃, and also helps to give better thermal conductivity at the operating temperatures.

This alloy is normally used in moulds for the continuous casting of blooms and slabs .In this case, the moulds are much thicker than in the billet moulds, and the moulds temperature can be higher. The main composition of this alloy are Cu+Ag99.90 min. Ag 0.08 / 0.12 O 0.004 / 0.012.

Copper Mould Tube supplier

The continuous casting of molten steel into billets, blooms and slab products, has been highly refined over the years into an extremely sophisticated system. The continuous casting process is expected to produce metallurgically sound products at the lower possible cost, and this is being achieved in many steelworks throughout the world.

Copper moulds have played an important role in the development of the continuous casting process. Their funcition is to receive the molten steel and to allow rapid heat transfer from the steel to the cooling water to enable quick solidification.

The mould must exhibit excellent thermal conductivity, be resistant for thermal erosion ,and be resistant to distortion from thermal stress. So far only copper and a few copper alloys meet the above conditions, both economically and technically.

Mould cooling jacket supplier SOLIDIFICATION

The rate of solidification in the continuous casting process dictates the speed of production. The molten steel, which is in contact with the inner faces of the copper mould, starts to sllidify as rapidly as the heat is extracted, forming a shell. The shell increases in thickness as more heat is extracted, and eventually total solidfication is achieved. the process is similar to the solidification of ingots in ingot moulds. In continuous casting, the whole process is speeded up, with the aim to produce and homogeneous shell growth. Consequently, the mould is an important part of the continuous casting process, and the manufactured quality of the mould plays and important role in their length of life.

INNER SURFACE COATINGS

Over the years, Metallurgists and Engineers have been working together to develop better continuous casting moulds. The steel companies require a more economical mould which will give a longer service life. Surface coating of the inner walls of the mould has given the best results to date. Coatings available are Chromium and Nickel plating. Also, a combination of the two give good results on slab casting.

SPECIFICATIONS OF COPPER MOULD

Square Copper mould tube

Square 60 x 60 – 350 x 350 (mm)

Rectangle 120 x 160 – 180 x 300 (mm)

Round Copper Mould tube

Diameter 100-400 (mm)

Size(mm): 90×90, 100×100, 110×110, 115×115, 120×120

130×130, 135×135, 140×140, 143×143, 150×150

155×155, 160×160, 165×165, 175×175, 180×180

200×200, 220×220, 100×170, 100×173, 130×240

150×200, 150×210, 150×220, 160×200, 160×220

150×225, 160×235, 165×225, 175×225, 180×220

200×240, 240×240, 235×235

Radius(mm): 4000, 5000, 5250, 6000, 7000, 7500, 8000, 9000, 10250, 10300, 11000, 12000

Length(mm): 700, 750, 780, 790, 800, 810, 812, 850, 900, 1000

Ceramic lined pipe is made through the self-propagating high-temperature synthesis (SHS) technique.

Self-propagating High-temperature Synthetic process

Self-propagating high-temperature synthesis (SHS) is used to describe a process in which the initial reagents (usual powders), when ignited, spontaneously transforms into products due to the exothermic heat of reaction.

The combination of high rigidity of ceramic and high elasticity of steel gives the pipe unmatchable features like abrasion resistant, heat resistant, and corrosion-resistant material for use in the fields of power generation, metallurgy, mining, and chemical industry, etc. It has many advantages over steel pipes, cast stone pipes, and steel-plastic compound pipes.

Usage of Ceramic Lined pipe

The ceramic-lined pipe transportation has been widely used in the industries of electric power, metallurgy, coal, petroleum, chemical engineering, building materials, mechanism, and so on.

The ceramic lined elbow throughout the power, metallurgy, coal, petroleum, chemical, building materials, machinery, and other industries, and high-speed development. When lining the wear-resistant ceramic elbow to deliver high grinding material (such as ash, coal, ore powder, etc.), there is a lining of wear-resistant ceramic elbow wear fast, especially the elbow Wear faster. When lining a ceramic-lined elbow to deliver a highly corrosive gas, liquid or solid, there is a problem that the lined wear-resistant ceramic elbow is corroded and is quickly damaged.

There is a problem that it is expensive to use a heat-resistant steel pipe when the material having a higher temperature is conveyed in the lining of the wear-resistant ceramic elbow. After lining the wear-resistant ceramic elbow, these problems are solved.

The ceramic lined elbow is widely used in wear and tear of mine filling material, ore powder and tailings transportation, coal-fired power plant powder, smelting, ash and other things lined with wear-resistant ceramic elbow are also very appropriate.

The ceramic lined pipe, Elbows, Reducer, Tees, and others manufactured in our factory have been used in over 200 thermal power plants, more than 50 mines, and the industries of coal, building materials, mechanism, petroleum, and so on.

Abrasion

Ceramic layer Ceramic Lined Reducer Pipe with flange reducer Al2O3 content greater than 89%, micro-hardness HV1000-1500, which has high abrasion resistance, wear resistance more than ten times higher than carbon steel after quenching, superior tungsten carbide drill.

Application range

• coal pulverizing system of power plant pipeline, including, powder transmission pipeline, thick powder separator pipeline, coal drop pipe, combustion system of a windpipe, a secondary air pipe, three pipeline and burner pipelines, in addition to ash slagging system the discharge pipe, powder pipe, dry ash conveying pipe;
• Iron and steel plant raw material conveying pipeline, collecting pipe, dust pipe, ash pipe, ash pipe, mixing pipe, grinding export pipeline, coal pipeline, coal pipeline, separator pipe, burner radius pipe, etc.;
• Cement plant selection machine outlet pipe, choose machine inlet pipe, pipe dust pipe, vertical mill outlet pipe, circulating air duct, high-temperature air blower, lower material pipe, etc.;
• Petroleum, chemical, mining, coal, coal washing plant, smelting, paper, aluminum, building materials, powder engineering, food machinery, and other processing and conveying material pipes.

Corrosion

Ceramic materials are neutral, chemically stable, have excellent corrosion resistance and acid resistance, resistant to various inorganic acids, organic acids, organic solvents, and their degree of corrosion of stainless steel is more than ten times.

Temperature

Temperature above 2000celsius degree, long-term work in the range of -50 -900 celsius degree.

Easy welding.

The ceramic adjustable tube can be welded, flanged, flexible connectors, and other fast way links, very easy to install.

Clean and easy maintenance

Smooth walls, can prevent scaling, fouling, and self-cleaning functions. Tightness.

Remarks:

• Under the direction of the arrow diagram for the export direction.
• Bend radius is usually 1.5-5 times the diameter of steel pipe (1.5-5D).
• Othe specifications of the composite pipe can be manufactured according to the user requirements.
• The weight is calculated by theoretics, maybe have some tolerance, and real weight will be weigh-in after they finish.

Hoop strength is the resistance against radial pressure. The strength of the ceramic-lined steel composite pipe is 300 to 500MPa.

Features and Advantages of ceramic lined pipe

Ceramic Liner pipe is a high technology production technology-self-fuel high-temperature clutch synthesis method.

1). High Abrasion Resistant:

Vickers hardness of the corundum lining is HV1100 to1500, as high as that of tungsten-cobalt hard alloys, and the abrasion resistance is 20 times as carbon steel pipes. The composite ceramic-lined steel elbow was used in a mining plant for about fifty thousand hours. The general service life of a common steel elbow is about 700 hours.

2). Corrosion Resistant:

Corundum is a neutral material and is acid-proof and fouling-free.

3). Heat Resistant:

Ceramic lined composite steel pipes can work under circumstances of -50 to 800 Celsius degree.

4). Lower Weight and Convenient Installation:

The ceramic-lined steel pipes are lighter than alloy pipes, cast iron pipes, and cast stone pipes and can be welded or connected through flanges, which reduces the expense of transportation and makes the pipes easier to install.

For the pipes with the same sizes, types, and lengths, the weight of the ceramic pipe is about 1/2 of the wearable cast alloy steel pipe’s, while the cost has reduced 10%~20% per meter.

The weight of ceramic-lined steel pipe is about 1/3 of the cast stone bent pipes, 1/2 of the cast stone straight pipes.

Ceramic (Corundum: a-Al2O3) lined abrasion resistant straight pipe and fittings are lined with highly abrasion-resistant ceramic by SHS ——-Self-propagating High-temperature Synthetic process.

• The ceramic-lined steel composite pipe can be joined by welding the steel pipe layer.
• Ceramic-lined pipes can take place of expensive stainless steel, titanium, nickel, cast stone, or alloy pipes.
• Extended service life can also reduce maintenance costs.

Self-Propagating Ceramic Pipe

Self-propagating ceramic steel pipes create a new generation of abrasion and corrosion-resistant engineering pipelines.

The self-propagating ceramic steel pipe has very good wear resistance, Excellent corrosion resistance, and Excellent thermal resistance performance.

SHS-self-propagating ceramic steel pipe and elbow create a new generation of abrasion and corrosion-resistant engineering pipeline. The composite pipe is composed of three layers: ceramic, intermediate, and steel layers.

The ceramic layer is formed by molten alumina at a temperature above 2500 degrees. The molten alumina produced from the reaction Fe2O3+2Al=2Fe+Al2O3 spreads on the inside wall of the steel pipe under the influence of a centrifugal force, then solidifies, so the ceramic layer has high density and smooth surface and bonds to the steel pipe.

Applicable Industries:

1. The pipe needs excellent wear resistance property: Power plant, Mining, Sea Port, Coal Plant, And pipe for transporting the powder, slurry, sand, etc.
2. Coal washing plant, pipe for transporting coal and other material.
3. Pipe for transporting the melted aluminum.
4. Any pipe which needs to wear protection, corrosion protection, etc.

Benefits:

1. Excellent wear resistance, Alumina content of the ceramic liner is higher than 95%, Hardness HV1000-1500. The wear protection performance is more than 10 times better than carbon steel after quenching,
2. Excellent corrosion resistance, stable chemical properties.
3. Excellent thermal resistance performance up to 2000℃ Can be used in the area from-50℃ to 900℃ for a long time.
4. Can be connected with another pipe by welding, flange and soft fast connecting, and easy installation.

China Gate Valve

What is Gate valves

Gate valves are widely used for all types of applications and are suitable for both above-ground and underground installation. Not least for underground installations it is paramount to choose the right type of valve to avoid high replacement costs.

Gate valves are used to shut off the flow of liquids rather than for flow regulation. When fully open, the typical gate valve has no obstruction in the flow path, resulting in very low flow resistance. The size of the open flow path generally varies in a nonlinear manner as the gate is moved. This means that the flow rate does not change evenly with stem travel. Depending on the construction, a partially open gate can vibrate from the fluid flow

Gate valves are mostly used with larger pipe diameters (from 2″ to the largest pipelines) since they are less complex to construct than other types of valves in large sizes.

Gate Valve Parts

Main gate valve parts of a gate valve are: body, seat, gate, stem, bonnet and actuator. The main operation mechanism is very simple. When the handwheel is turned, it rotates the stem, which is translated into the vertical movement of a gate via threads.

Types of Gate Valves

There are three ways to classify the gate valve.

Types of Disk

Solid taper wedge

Flexible wedge

Split wedge or Parallel disks Valve

Types of Body Bonnet Joint

Screwed Bonnet

Bolted-Bonnet

Welded-Bonnet

Pressure-Seal Bonnet

Types of Stem movement

Rising Stem or OS & Y Type (Outside Stem and Screw Type)

Non-rising Stem type

Gate Valve Applications

Gate valvesare used in almost all fluid services such as air, fuel gas, feedwater, steam, lube oil, hydrocarbon, and all most any services.

Some special gate valve is used in slurry and powder product also such as knife gate valve

https://www.civalves.com/product-list-gate-valve.html