321/316/304/LOW CARBON STEEL R Ring Joint Gasket /Octagonal RTJ Gasket asme b16.20 flange rtj gasket

DESCRIPTION OF PRODUCTS

This metal ring pad is a solid metal gasket with cross-section octagonal shape made of metal material by forging and heat treatment and machining.

It has the function of radial self-tight sealing and is a kind of standard R-type metal ring pad, which is based on the contact between the gasket and the inside and outside of the flange ladder groove (mainly the outer surface), and the sealing effect is formed by compaction.

The octagonal metal ring pad is installed in the ladder ring groove of the flange surface. When the connecting bolt is tightened, the axial compression and the upper and lower ladder groove are tight, resulting in plastic deformation, forming a ring seal belt to establish the initial seal. after boosting the pressure, the radial expansion of the ring pad is made under the action of the medium pressure.

Gasket and trapezoid groove slope more tight, produce self-tightening effect. However, the increase of the medium pressure will also deform the flange and the connecting bolt, resulting in the relative separation of the sealing surface and the relative decrease of the gasket sealing ratio, so the ring pad can be considered as a semi-self-tight seal.

Octagonal metal ring pad and flange groove match is mainly face contact, compared with oval ring pad although not easy to close with flange groove, but can be used again, and because the section is made of straight line easy to process. At the same time choose octagonal metal ring pad material hardness should be lower than flange surface 15~20HB.

PERFORMANCE CHARACTERISTICS

1. High temperature and high pressure resistance, suitable for high pressure flanges;

2, durable and reliable seal;

3. Adapt to working conditions with pressure and temperature fluctuations.

Application range of octagonal metal ring gasket: usually used for high temperature and high pressure steam, gas, solvent pipe flange, tower groove, pressure vessel, high speed joint surface, high temperature and high pressure valve, cover. Wellhead devices and seals on Christmas trees in the oil and gas industry;

Metal ring pads originated in the United States, and were first used in the field of boilers in the 1920s. They were later used to seal manhole covers and other windows of autoclaves. They were particularly valued in the oil production and refining industries. As the temperature and pressure of steam power plants increase, the use of metal ring pads becomes more and more widespread.

Packing:
Wooden box is the most popular packing for export,we also accpet special packing reqirement before shipment or production.For example ,Carton Box Design with your company name.

Delivery:
Usually we have enough stock for the normal sizes ,so the delivery time will be 2-3 work days,we need this time to paint and packing.If we dont have stock or stock is not enough,we will need 7-15 work days to produce as your requirement.

 OUR SERVICE
1)Your inquiry will be replied within 2 hours during working time,Within 24hours when rest time.
2)Our working time is 7.30 AM --17:30 PM,Monday to Saturday.
3)General samples time can be arranged within 2--5days.
4)Orders will be produced exactly as request and approved samples.
5)When mass production,we send photos to show the production line.And confirm the estimate time again.
6)At the end of mass production,photos and samples will send to you for approval.You can arrange the inspection.
7)Before shipment,our QC will have inspection to make sure the quality.
8)We always try best to ensure every order to delivery in time.

We are a robust oil field service company with professional expertise in supply of Oil Drilling Equipments, Tools and OCTG.

We specialize in supply of full range of products like Casing, Tubing, Drill Pipe, Drill Collar, HWDP, Line Pipe, Kelly, Pumping Unit, Downhole And Cement Tools etc.

Our principle is to offer high quality products at competitive price to benefit our customers and the industry in the long run. Our products enjoy high reputation at home and abroad. We have successfully established a stable and increased market share and we are constantly making efforts to actively expand our sales network.

Our policy is to pursue the perfect, to be the best. Customer first and constant improvements in quality have been our guidelines. We have always focused on “international standards” since the inception of our company.

With continuous diligence and improvement we have established a broad working relationship with our clients who are spread across the globe in places like Middle East, Europe, North America, South America, Asia, Australia and Africa.

Q1: Are you a factory or a trading company?

We are manufacturer and trading company.

Q2: How is your quality?

We provide 12 month warrenty for all products.

Q3: How is your price level?

We have our own plant and works with lots selected and long time partnership manufacturers, always the factory direct price.

Q4: How is your shipping leading time?

According to the quantity of per size. Generally it is with 30 days if the goods are in stock,or it is 30-45 days if the goods are not in stock.

Q5: Do you provide samples ? Is it free or paid?
Yes, we could offer the sample for free charge but cost of freight is under your responsibilty.

If you have any other questions, please contact us: