Metal wound gasket is a kind of sealing gasket widely used at present, which is the best resilience gasket in semi-metal close gasket. It is made of V-shaped or W-shaped thin steel strip and various filling materials alternately wound, which can withstand high temperature, high pressure and adapt to ultra-low temperature or vacuum conditions. By changing the material combination of gasket, the chemical corrosion problem of gasket by various media can be solved. Its structural density can be made according to different locking force requirements. In order to strengthen the main body and accurate positioning, the winding gasket is provided with a metal inner strengthening ring and an outer positioning ring, and the internal and external steel ring is used to control its maximum compression degree. The surface accuracy of the flange sealing surface contacted by the gasket is not high.

Main use

The metal winding gasket with excellent resilience can automatically adjust the pressure and thermal cycle and vibration of the pipeline system, especially suitable for uneven load, easy relaxation of joint force, periodic changes in temperature and pressure, impact or vibration occasions. It is the static seal of valve, pump, heat exchanger, tower, manhole, hand hole and other flange joints, widely used in petrochemical, machinery, electric power, metallurgy, shipbuilding, medicine, atomic energy and aerospace and other departments.

In order to facilitate installation in the appearance design of flange gasket, 2~8 positioning belts are welded on the periphery of the gasket according to the diameter size of the gasket, so that the positioning belt is buckled on the flange hole to prevent the gasket from shifting or falling off during installation, saving auxiliary materials and working hours. It is generally divided into the following types:

Metal winding gaskets are made of high quality SUS304, SUS316 (" V "shape or" W "shape) metal belts and other alloy materials and graphite, asbestos, polyteflon, non-asbestos and other soft materials by alternating overlapping spiral winding, at the beginning and end of the metal belt is fixed by spot welding. The metal wound gasket is the best springback gasket in the semi-metal close gasket. The structural density of the metal wound gasket can be made according to different locking force requirements, and the internal and external steel rings are used to control its maximum compression degree. The surface accuracy of the flange sealing surface contacted by the wound gasket is not high. Metal wound gaskets are especially suitable for uneven load, easy relaxation of joint force, periodic changes in temperature and pressure, impact or vibration. Winding gasket is an ideal static seal element for flange joints of valves, pumps, heat exchangers, towers, manholes, hand holes, etc.

Scope of application

Petroleum, chemical, metallurgy, electric power, shipbuilding, machinery and other industries of pipeline, valve, pressure vessel, condenser, heat exchanger, tower, manhole, hand hole flange joint sealing.

Types of metal winding gasket:

Basic metal winding pad, metal winding pad with outer ring, metal winding pad with inner ring, metal winding pad with inner and outer ring, heat exchanger (with rib), special-shaped metal winding pad