R40 metal octagonal gasket for valves in Huangshi City * price

R40 metal octagonal gasket for valves in Huangshi City * price

Octagonal cushion

Octagonal ring gasket is made by forging, heat treatment, and mechanical processing. It is a metal sealing gasket used for oil and gas pipe flanges, pressure vessels, high-speed joint surfaces, high-temperature and high-pressure valve covers, etc. Especially in situations where pressure and temperature fluctuate, it can still maintain good sealing performance.

Material: carbon steel, stainless steel, etc. Standard: national standard, non-standard, etc. Specification: DN15-1000

Applicable standards for metal ring gaskets:

Metal ring pads are divided into elliptical pads and octagonal pads according to their cross-sectionsThere are several special forms of octagonal pad RX and BX lens pads.

Product shape: The cross-section is octagonal.

Product Usage: Mainly used for flat gate valves, Christmas trees, pipeline fittings, pipeline flanges, gas fields, wellhead equipment, petrochemicals, oil production machinery fittings, and other mechanical equipment.

Metal ring gasket is a solid metal gasket processed from metal material with a cross-sectional shape of octagonal or elliptical, which has a radial self tightening sealing effect. Therefore, the metal ring pad is formed by the contact between the cushion piece and the inner and outer sides (mainly the outer side) of the flange trapezoidal groove, and by compression to form a seal.

R40 metal octagonal gasket for valves in Huangshi City * price

This type of metal ring gasket is a solid metal gasket with an octagonal cross-sectional shape made of metal material through forging, heat treatment, and mechanical processing. It has a radial self tightening sealing effect and is a type of standard R-type metal ring gasket. Its working principle is that the cushion pad contacts the inner and outer surfaces (mainly the outer surface) of the flange ladder groove, and is compressed to form a sealing effect.
The octagonal metal ring gasket is installed in the ladder shaped groove on the flange surface. When the connecting bolt is tightened, it is compressed axially and pressed against the upper and lower ladder shaped grooves, causing plastic deformation and forming an annular sealing band, establishing the initial seal. After the pressure is increased, the ring gasket expands radially under the action of the medium pressure.

Octagonal cushionScope of application
Usually used for pipe flanges, tower tanks, pressure vessels, high-speed joint surfaces, high-temperature and high-pressure valves, and covers for high-temperature and high-pressure steam, gas, and solvents. Wellhead equipment and seals on Christmas trees in the oil and gas industry.
Performance characteristics of octagonal metal ring gasket
1. High temperature and high pressure resistance, suitable for high-pressure flanges;
2. Durable and reliable sealing;
3. Adapt to working conditions with fluctuating pressure and temperature.
Main performance parameters of octagonal metal ring gasket
Gasket coefficient m=5.5-6.5
Gasket usage pressure ≤ 40MPa
Gasket usage temperature -200 ℃ -1000 ℃
zSmall preload ratio pressure y=126.6-182.8MPa