Die-Formed Graphite Ring-Cixi Sinston Sealing Material Factory- http://www.sinston.com 

 

CONSTRUCTION:

GR 2020—Die formed Graphite Ring

                                      die formed ring are made of low-sulphur expanded graphite without any fillers or binders. They are compressed in precise moulding tools to the required density. Due to the high purity of the material (>98%), no special corrosion protection is required. In general, it has square section and also has V-shaped and wedge-shaped section, the rear two kinds style 2020S are suitable for high pressure sealing.

                                     

GR 2020E—Reinforced Die formed Graphite Ring

  Moulded from pure flexible graphite with reinforcement, the insert materials stainless steel foil or mesh etc. are available on request. To protect against oxidation, the stainless steel cap is necessary.

 

  GR 2020K—Die formed Graphite Ring with Corrosion Inhibitor

Corrosion inhibitor acts as a sacrificial anode to protect the valve stem and the stuffing box.

GR 2020EK is reinforced graphite ring with corrosion inhibitor.

 

APPLICATION :

 

It has all properties of expanded graphite, can bear violent alteration of temperature and pressure. It is ideal packing for valves and static seal in almost all applications. Can be used as stand-alone packing or in combination 2102 high carbon fiber anti-extrusion packing rings, except when stems are severely damaged.

 

SERVICE LIMITS:

 

 

Fans (Dry running)

Agitators

Valves

Pressure

10Bar

50Bar

800 Bar

Shaft speed

10m/s

5m/s

2m/s

Density

1.2~1.75g/cm3 (Normal: 1.6g/cm3)

Temperature

-220~+500°C (+2800°C in non-oxidizing environment)

PH range

0~14

FORMS OF SUPPLY:  

As prepressed rings (full or split)

Straight cut and slanted cut on request.                        

                                      Supply size:

Min. cross section:  3mm

Max. diameter:    1000mm 

For special profiles style 2020S, e.g. rectangular, with inner- or outer bevel, with cap, please offer detailed drawing and sizes.

Graphite of nuclear grade (99.5%) on request.

 

 

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