Gost Flange PN16

Loose sleeve flange with neck butt weld ring

Loose flange butt welding ring loose sleeve with neck flange, butt welding ring loose sleeve plate flange, flat welding ring loose sleeve plate flange, plate type over loose flange, in addition, in order to meet the needs of locking after the device, there are holes in the rod part, these holes can make the bolt not loosen when vibrating. Some flange bolts without threaded light rods should be made thin, called thin rod flange bolts. This flange bolt facilitates the coupling of variable forces. There are special high-strength bolts on the steel structure, the head will be larger, and the size will also change, and the hot-dip galvanized round steel is to react with the iron matrix to produce an alloy layer.

Flat weld ring loose flange (PJ/SE)

Flat welding ring loose flange is a movable flange, generally matched on water supply and drainage accessories (the most common on the expansion joint), the manufacturer leaves the factory when the expansion joint has a flange at both ends, directly connected with the pipelines and equipment in the project with bolts. The purpose of using flat welding ring loose flange is generally to save materials, and its structure is divided into two parts, one end of the pipe part is connected to the pipe, one end is made into a flange, and the flange part is set on the flange. The flange is made of low-grade material, while the pipe part uses the same material as the pipe to achieve the purpose of saving materials.

Flat welding ring loose flange:

1. Cost saving. When the pipe material is special and expensive, the cost of welding the flange of the same material is high.

2. It is not easy to weld or not easy to process or requires high strength. Such as plastic pipes, fiberglass pipes and the like.

3. Easy to construct. If the flange bolt hole corresponds when connecting, it is not easy to find the right, or to prevent the flange bolt hole from changing in the future.

Shandong Shengli Forging Co.ltd. used to be centered in 2008, now there are eighty workers, worldwide income personnel 5 , satisfactory inspection personnel 6. Monthly output can attain 600 tons. Production, packaging, laboratory trying out tools available. We specialize in producing carbon metal flanges.

We now have ISO9001: 2008 certificate, and for creating the market ,we additionally get the British Lloyd certification and German TUV certificates.we have 10 years' ride of global business.80% -90% of the merchandise exported to South Korea, Italy, Germany, Peru,Russia.