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Expanded Graphite Die-formed ring
SKU: SINSTON ZR-790
Description
Additional Info
Description
Description:SINSTON 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 are suitable for high pressure sealing.
CONSTRUCTION:
SINSTON ZR-790 Expanded Graphite Die-formed ring
SINSTON ZR-790R 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.
SINSTON ZR-790C Die formed Graphite Ring with Corrosion Inhibitor
Corrosion inhibitor acts as a sacrificial anode to protect the valve stem and the stuffing box.
SINSTON ZR-790EC is reinforced graphite ring with corrosion inhibitor.
SINSTON ZR-792 Expanded Graphite Self-sealing ring
SINSTON ZR798(T) Expanded Graphite Gasket and SS316 Tanged insert Formed Ring
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 SINSTNO ZR-544 high carbon fiber anti-extrusion packing rings, except when stems are severely damaged.
SINSTON have cooperation with more famous Valve manufacturer in the world.
PARAMETER:
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Fans (Dry running) |
Agitators |
Valves |
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Pressure |
10Bar |
50Bar |
800 Bar |
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Shaft speed |
10m/s |
5m/s |
2m/s |
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Density |
1.2~1.75g/cm3 (Normal: 1.6g/cm3) |
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Temperature |
-220~+550deC (+2800deC in non-oxidizing environment) |
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PH range |
0~14 |
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DIMENSIONS:
As pre-pressed rings (full or split)
Straight cut and slanted cut on request.
Supply size:
Min. cross section: 3mm
Max. diameter: 1000mm
For special profiles, rectangular, with inner- or outer bevel, with cap, please offer detailed drawing & sizes.
Graphite of nuclear grade (99.5%) on request.
Additional Info
Product Qualification
Delivery , Shipping and serving
faq
The specific temperature and pressure range depends on the selected gasket material and design. Generally, our sealing gaskets can work in a temperature range of -50°C to 200°C, and the pressure range can vary from low pressure to high pressure. The specific parameters will be clearly indicated in the product manual.
When choosing a sealing gasket, several factors need to be considered, such as the working medium, temperature, pressure, seal surface form, etc. Our professional team can provide advice and selection guidance based on your specific needs to ensure that you choose the most suitable sealing gasket.
We strictly follow international and industry standards for production and quality control. We conduct strict inspections at every stage of the production process, from raw material procurement to ensure the stable and reliable quality of the sealing gaskets.
Yes, we can provide custom-sized sealing gaskets according to the customer’s requirements to meet various special needs.
The delivery time will vary depending on the order quantity and production schedule. Generally, the delivery time for standard-sized sealing gaskets is shorter, while custom-sized ones may take a little longer. We will do our best to meet the customer’s delivery requirements and provide accurate delivery time information when the order is confirmed.
We provide high-quality after-sales service. If you encounter any problems during use, we will respond promptly and provide solutions. We also conduct regular follow-up visits to customers to understand the product usage situation and continuously improve our service.
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