ANSI WN Carbon Steel Flange B16.5

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2 Tons pc
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400 Tons per Month pc/month

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Detailed Product Description

The main materials of flanges are carbon steel, stainless steel and alloy steel. The production base area is about 82300 square meters. Our annual production capacity is more than 9000 tons, with perfect detection means and quality .


Our company has passed Rhine, Germany(TUV) ISO9001 Quality Management System Certfication, European Pressure Equipment and Materials AD2000-W0 Certification. Meanwhile, we also passed the Pressure Pipe Components Manufacturing Safety Registered Certification of the State Quality Inspection Administration. All of these are a more effective guatantee for the quality of products. At the same time, our products are exported to Europe, United States, the Middle East, Africa, South-East Asia regions and other countries.

1.     Type: plate flange, welding neck flange, slip-on flange, socket welding, lap joint flange, thread flange, blind flange

2.     Material: carbon steel and stainless steel

3.     Standard: ANSI, JIS, BS, DIN, EN, UNI, GB, and API

4.     Size: OD up to 3000mm

5.     Pressure: 75bls to 2500 bls

6.     Marking: Required

7.     Painting: yellow, blank, clear, oil and Zn

8.     Inspection: in-house and the third party 


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Q:How much pressure is flange 150#?
The flange 150# is equivalent to 20 kg pressure
Q:The material of the flange is 20#. What does that mean?
There are many kinds of steel. You are using No. 20 steel
Q:How are bearings fixed on the plate with flanges?
Place the same screw hole on the plate and screw it with the screws
Q:What is lined with PTFE stainless steel flanges?
PTFE lined pipe after years of actual use, directly affect the service life and stable performance is temperature, pressure, medium, high quality materials and advanced manufacturing technology is the product quality assurance of PTFE lining. Flange is a large pipe, pipe fittings of a connection, that is, in the connection where there is a wide out of the edge, surrounded by empty, two pieces of flange pairs together, fixed with screws. Stainless steel flanges are made of stainless steel.Lining PTFE pipe anti-corrosion biggest advantage:1., high temperature, {maximum use temperature of 260 degrees.2., strong acid resistance, strong alkali, {pH value between 1~14.3. excellent adhesion, {negative pressure can reach 0.09MPa, vacuum effect.4. long service life {general conditions can be used for 8 to 10 years, the general commitment for 1 years warranty.5., strong penetration resistance, {hydrofluoric acid. Chlorine, bromine, acid and other gases are very good permeability.Requirements for selection of steel pipes and flanges for lined PTFE pipes and fittings1, the national standard pipe seamless steel pipes, due process requirements, the nominal pipe lining inside effective diameter smaller than the pipe diameter, effective flow standard necessary for the designers and users of steel pipe diameter.2, the flange can be based on user needs according to the national standard of HG, GB, JB, ANSI, JIS, BS, DIN etc., can be forged, can also be determined by the contract, because the sealing process suggested the use of welding plate flange, hubbed flange. Is the plane sealing surface of the seal type, in order to facilitate the installation of pipelines, can provide users with flange ring activities.
Q:Where is the flange used in the pump?
Flanges are used on pipes and valves that are connected to the pump. Generally, each pump inlet and outlet at least three flange and a two valve valve.
Q:What are the technical requirements for flanges?
Blackening, quenching and tempering
Q:Steel flanges (mechanical machining) can produce forgings flanges? Grades range from B to pressure piping
Steel flanges (machined) can produce forged flanges, but without forging qualification
Q:Hubbed flange 2 "ANSI #150 is what size?
ANSI B16.5 American Standard looper flange class pressure level
Q:What's the advantage of flange bolts?
Is it possible to tighten more? The ordinary bolt head is very thick and difficult to deform. If it vibrates, it needs to be screwed again. A thin part of the flange can be slightly deformed, so that it can be locked stronger. If there is time to go to the hole, there is no way to use the tools of ordinary bolt, bolt head is small, the flange also plays the fastening function, it can be used on the special tool to the hole, and the inner six angle bolt principle about the same. Then there is flange flat pad to use, in the soft, non wear-resistant material more secure, will not cause perforation. These are personal guesses for reference only.
Q:What is flange connecting plate?
You may refer to the resistance between the two gas pipeline flange of the connecting plate is less than 5 ohm, usually used 2-3mm copper, 25-30mm width 200-250mm length, the two flange two screw holes connected tightly to the recent. There is also the key to the selection of aluminum plate is to ensure that the grounding resistance value. The design drawings shall be subject to the requirements.
Our company has strong professional technical force, rich experience, integrated data and advanced equipment, as well as high-quality forging, machine-processing, assembling and packing production lines. Our product quality is in full compliance with both national and international standards, and we have obtained the ISO9001-2000 quality certification. Warmly welcome all to come to visit, investigate and negotiate business.

1. Manufacturer Overview

Location Shandong,China
Year Established 2008
Annual Output Value
Main Markets North America
South America
Eastern Europe
Southeast Asia
Mid East
Eastern Asia
Western Europe
Central America
Northern Europe
Southern Europe
Company Certifications ISO9001:2008

2. Manufacturer Certificates

a) Certification Name  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port qingda
Export Percentage 81% - 90%
No.of Employees in Trade Department
Language Spoken: English, Chinese
b)Factory Information  
Factory Size: 10,000-30,000 square meters
No. of Production Lines 10
Contract Manufacturing OEM Service Offered Design Service Offered Buyer Label Offered
Product Price Range Low and/or Average