Haihao group is committed to providing the best quality ASME B16.48 304 figure-8 flanges. 304 is a universal stainless steel, which is widely used in the manufacture of equipment and parts requiring good comprehensive properties (corrosion resistance and formability). To maintain the corrosion r ...

The tightness of the flange is directly related to the sealing surface of the flange-pressed gasket, and the commonly used flange sealing surface types are three as follows. Flat face type sealing surface The flat flange sealing surface is a very smooth plane with the advantages of simple struct ...

Obviously, the two galvanizing processes are used at different temperatures and different galvanizing processes. The processing process of hot-dip galvanized flange is, first of all, the flange is immersed in the temperature of 440-465℃ in the process of processing of molten zinc, iron matrix an ...

In the production of flange, because of the low cost of carbon steel flange, anti-corrosion performance is far less than stainless steel, alloy steel and other materials of flange superior, often use cold galvanized and hot galvanized these two processing methods, to improve the anti-corrosion p ...

Flange is an interconnected part between shafts, which is used to connect pipe ends. It is an important part type in chemical production pipeline system. The quality of flange will directly affect the sealing performance of flange connection. The quality depends on the flange material and the pr ...

About two months ago, a customer from Singapore ordered a batch of slip on flanges. The size is 1″ ~12″, the pressure is 150LB and 300LB, the material is ASTM A105, the standard is ASME B16.5. As the customer have special requirements for the marking, they require marking content to ...

Today, the 10″ 900# SS316 figure-8 flanges were deliveried. Figure-8 flange is a kind of flange, because its shape like “8”, so called Figure-8 Blank. It is one end of the blind flange, the other end is composed of throttling ring, in the transmission of fluid, the use of throt ...

Some time ago,we exported a batch of JIS B2220 SOH flanges made of SS304 to India.We not only completed these flanges quickly, but also carried out strict size and marking inspection on these goods.Each flange was protected with a plastic sheath and packed in wooden case.The customer was very sa ...

We have recently completed a batch of orders slip on lining plastic flanges, the customer request the material of slip on flange is A105, the size is 3′-6′, pressure is 300 #, inner and outer wall coated with polymer material.The coating material is polyethylene (PE), crosslinked pol ...

Recently we received an inquiry from a customer in Spain.  The inquiry content is carbon steel flanges, but all flanges are customized flanges from drawings. The customer is an old customer we have cooperated with before. The customer often purchases customized flanges with some drawings.  Soon ...

Half a month ago, 63 pieces of stainless steel large-size flange have been shipped, and now the customer has received the goods. The customer received the goods as expected, very satisfied. Since we arranged production from the initial inquiry to the customer’s order, the inspection was ve ...

Recently, the carbon steel, alloy steel and stainless steel flange,pipe fittings produced by Hebei Haihao Group have obtained the certification of DNV and the relevant certificates approved and issued by the headquarters of DNV. This is another classification society certification obtained by He ...