Unique Features of RapidPress Press-Fit Seals
RapidPress seals are available in various materials, including EPDM, FKM, and HNBR.
They are made with a unique, patented, lenticular shape which allows for up to 20% enlargement of the sealing surface area compared to other standard press-fit seals. RapidPress seals also allow for easier pipe insertion due to the flatter surface, which also reduces the risk of the seal being damaged.
Up to 54mm, the RapidPress seal contains small ridges that intentionally create leakage before the seal is pressed. Termed as a “leak-before-press” seal, this feature offers an added layer of security during system start-up. In the event of an unpressed or improperly pressed joint, the seal will visibly leak, providing an immediate visual cue for potential issues that require fixing.
EPDM seals are the standard seals supplied with the RapidPress system and are made from a long lasting synthetic rubber called Ethylene Propylene Diene Monomer. They are suitable for potable water, heading & cooling, alcohols, compressed air and certain chemicals. EPDM seals have an operating temperature range from -20 degrees celsius to 120 degrees celsius. They are not suitable for use with oils, greases and fuels. RapidPress EPDM seals are coloured black for quick and easy identification.
FKM seals, also known as Viton Seals, are typically more resistant to higher temperatures, chemicals and oils. FKM is the short name for Fluoro-Elastomer which is the material the seals are made from. The temperature rating of these seals is from -20 degrees celsius to 220 degrees celsius. It is also recommended to use these seals for compressed air applications if there is residual oil over 5 milligrams per cubic metre of air (> 5mg/m3). The FKM seals can easily be identified by their bright green colour.
The yellow HNBR seals are used with our gas rated press-fit system as they are resistant to ageing and heat. HNBR stands for Hydrogenated Nitrile Butadiene Rubber and is also known as Highly Saturated Nitrile or HSN. They are suitable for temperatures between -20°C and +70°C, and for pressures up to a maximum of 70 PSI or 5Bar.
RapidPress seals are available in various materials, including EPDM, FKM, and HNBR.
They are made with a unique, patented, lenticular shape which allows for up to 20% enlargement of the sealing surface area compared to other standard press-fit seals. RapidPress seals also allow for easier pipe insertion due to the flatter surface, which also reduces the risk of the seal being damaged.
Up to 54mm, the RapidPress seal contains small ridges that intentionally create leakage before the seal is pressed. Termed as a “leak-before-press” seal, this feature offers an added layer of security during system start-up. In the event of an unpressed or improperly pressed joint, the seal will visibly leak, providing an immediate visual cue for potential issues that require fixing.
EPDM seals are the standard seals supplied with the RapidPress system and are made from a long lasting synthetic rubber called Ethylene Propylene Diene Monomer. They are suitable for potable water, heading & cooling, alcohols, compressed air and certain chemicals. EPDM seals have an operating temperature range from -20 degrees celsius to 120 degrees celsius. They are not suitable for use with oils, greases and fuels. RapidPress EPDM seals are coloured black for quick and easy identification.
FKM seals, also known as Viton Seals, are typically more resistant to higher temperatures, chemicals and oils. FKM is the short name for Fluoro-Elastomer which is the material the seals are made from. The temperature rating of these seals is from -20 degrees celsius to 220 degrees celsius. It is also recommended to use these seals for compressed air applications if there is residual oil over 5 milligrams per cubic metre of air (> 5mg/m3). The FKM seals can easily be identified by their bright green colour.
The yellow HNBR seals are used with our gas rated press-fit system as they are resistant to ageing and heat. HNBR stands for Hydrogenated Nitrile Butadiene Rubber and is also known as Highly Saturated Nitrile or HSN. They are suitable for temperatures between -20°C and +70°C, and for pressures up to a maximum of 70 PSI or 5Bar.
Chemical Compatibility Of Standard Seals
This chemical compatibility chart will help you find out which fluid can be used with which seal. As every aspect of an application may not be known by the supplier, applications remain the responsibility of the user.
A: Excellent – Material not affected
B: Good – Material slightly affected but suitable C: Fair – Some degree of reaction but suitable
D: Severe effect – Not recommended
X: No data available, refer to the crew at The Metal Company
This chemical compatibility chart will help you find out which fluid can be used with which seal. As every aspect of an application may not be known by the supplier, applications remain the responsibility of the user.
A: Excellent – Material not affected
B: Good – Material slightly affected but suitable C: Fair – Some degree of reaction but suitable
D: Severe effect – Not recommended
X: No data available, refer to the crew at The Metal Company
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Acetic acid 20%
B
A
A
A
C
B
B
A
Acetone 100 %
A
A
A
A
D
D
D
C
Acetylene
A
A
A
A
A
B
B
B
Ammonia dry
C
A
X
X
X
X
X
X
Ammonium chloride 1%
C
A
A
A
A
A
X
A
Ammonium nitrate 10-50%
A
A
A
A
X
A
B
C
Ammonium phosphate 10%
B
C
A
A
D
A
A
B
Ammonium sulfate 10%
B
C
A
A
D
A
A
A
Aqua regia, aqua fortis
D
A
C
A
B
D
D
D
Battery acid
X
A
B
X
A
D
D
C
Boric acid 5%
B
A
A
A
A
A
A
A
Calcium Hydroxide ≤ 10°C
B
C
A
A
A
A
A
A
Calcium Hypochlorite
C
D
A
A
A
C
B
D
Carbon dioxide
A
A
A
A
A
A
B
B
Caustic soda ≤ 50%
X
A
A
X
C
A
B
A
Chlorine (dry)
A
B
D
A
A
B
X
D
Citric acid 5%
B
A
A
A
A
A
A
A
Compressed air > 5mg/m3
A
A
D
X
A
D
A
D
Compressed air < 5mg/m3
A
A
B
X
A
B
A
D
Copper chloride
D
D
A
A
A
A
A
A
Copper nitrate
A
A
B
A
A
A
D
X
Copper sulfate 10%
B
A
A
A
A
A
A
B
Engine oil
X
A
D
A
D
A
D
D
Ethylene glycol
B
A
D
A
A
A
A
A
Ethylene Oxide
B
A
C
A
D
D
D
D
Ferric chloride, watery
D
D
A
A
A
A
B
A
Ferric sulfate
B
C
A
A
A
A
B
A
Formaldehyde
C
A
B
A
D
C
B
B
Formic acid
B
C
A
A
D
B
B
A
Hydrochloric acid 100%
D
D
A
A
A
C
D
C
Hydrogen fluoride
D
D
X
A
X
X
X
X
Hydrogen peroxide 10%
B
A
A
A
A
B
A
B
Linseed oil
B
A
C
A
A
A
A
D
Lubricating oils
A
A
D
A
A
B
D
D
Machine oil
X
A
D
A
D
A
D
D
Magnesium chloride ≤20%
D
A
A
A
A
A
A
A
Magnesium hydroxide 100°C
B
C
A
A
A
B
X
B
Magnesium sulfate <40%
A
A
A
A
A
A
A
A
Mineral oil
A
A
D
A
X
A
B
D
Naphthalene
A
A
D
A
A
D
D
D
Nickel chloride 10-30%
D
C
A
A
A
A
A
A
Nitrogen N2
A
A
A
A
A
A
A
A
Nitric acid ≤20%
A
A
B
A
A
D
D
D
Phosphoric acid
D
A
X
A
A
D
B
B
Potassium chloride
B
A
A
A
A
A
A
A
Potassium hydroxide ≤ 50°C
B
C
A
A
D
B
C
B
Potassium sulfate 10%
B
A
A
A
A
A
A
A
Propane (liquefied)
A
A
D
A
A
A
D
D
Prussic acid
X
C
A
X
A
B
C
B
Sea water
C
A
A
A
A
A
A
A
Sodium bicarbonate
A
A
A
A
A
A
A
A
Sodium chloride 5%
B
A
A
A
A
A
A
A
Sodium nitrate ≤ 40%
B
A
A
A
C
B
D
B
Sodium phosphate
B
C
A
A
A
A
A
A
Sodium sulfate 10%
B
A
A
A
A
X
A
X
Sulfuric acid 10% 60°C
D
D
B
A
A
D
D
C
Sulfuric acid, smoking
D
D
X
A
X
X
X
X
Sulfuric acid 100%. moist
C
C
X
A
X
D
D
C
Sulphur dioxide (dry)
X
C
A
X
A
D
B
C
Tartaric Acid 10% 100°C
C
A
B
A
A
A
A
A
Toluol 20°C
X
A
A
X
C
X
X
X
Trichloroethylene
B
C
D
A
A
C
D
D
Turpentine
A
C
D
A
A
A
D
D
Water ≤ 100°C
A
A
A
A
B
A
A
A
Water, deionised
A
A
A
A
A
A
A
A
Water, distilled
A
A
A
A
A
A
A
A
Zinc chloride
B
A
A
A
A
A
X
A
Zinc sulfate 10%
B
A
A
A
A
A
A
B
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Acetic acid 20%
B
A
A
A
C
B
B
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Acetone 100 %
A
A
A
A
D
D
D
C
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Acetylene
A
A
A
A
A
B
B
B
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Ammonia dry
C
A
X
X
X
X
X
X
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Ammonium chloride 1%
C
A
A
A
A
A
X
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Ammonium nitrate 10-50%
A
A
A
A
X
A
B
C
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Ammonium phosphate 10%
B
C
A
A
D
A
A
B
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Ammonium sulfate 10%
B
C
A
A
D
A
A
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Aqua regia, aqua fortis
D
A
C
A
B
D
D
D
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Battery acid
X
A
B
X
A
D
D
C
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Boric acid 5%
B
A
A
A
A
A
A
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Calcium Hydroxide ≤ 10°C
B
C
A
A
A
A
A
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Calcium Hypochlorite
C
D
A
A
A
C
B
D
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Carbon dioxide
A
A
A
A
A
A
B
B
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Caustic soda ≤ 50%
X
A
A
X
C
A
B
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Chlorine (dry)
A
B
D
A
A
B
X
D
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Citric acid 5%
B
A
A
A
A
A
A
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Compressed air > 5mg/m3
A
A
D
X
A
D
A
D
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Compressed air < 5mg/m3
A
A
B
X
A
B
A
D
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Copper chloride
D
D
A
A
A
A
A
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Copper nitrate
A
A
B
A
A
A
D
X
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Copper sulfate 10%
B
A
A
A
A
A
A
B
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Engine oil
X
A
D
A
D
A
D
D
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Ethylene glycol
B
A
D
A
A
A
A
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Ethylene Oxide
B
A
C
A
D
D
D
D
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Ferric chloride, watery
D
D
A
A
A
A
B
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Ferric sulfate
B
C
A
A
A
A
B
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Formaldehyde
C
A
B
A
D
C
B
B
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Formic acid
B
C
A
A
D
B
B
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Hydrochloric acid 100%
D
D
A
A
A
C
D
C
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Hydrogen fluoride
D
D
X
A
X
X
X
X
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Hydrogen peroxide 10%
B
A
A
A
A
B
A
B
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Linseed oil
B
A
C
A
A
A
A
D
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Lubricating oils
A
A
D
A
A
B
D
D
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Machine oil
X
A
D
A
D
A
D
D
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Magnesium chloride ≤20%
D
A
A
A
A
A
A
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Magnesium hydroxide 100°C
B
C
A
A
A
B
X
B
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Magnesium sulfate <40%
A
A
A
A
A
A
A
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Mineral oil
A
A
D
A
X
A
B
D
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Naphthalene
A
A
D
A
A
D
D
D
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Nickel chloride 10-30%
D
C
A
A
A
A
A
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Nitrogen N2
A
A
A
A
A
A
A
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Nitric acid ≤20%
A
A
B
A
A
D
D
D
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Phosphoric acid
D
A
X
A
A
D
B
B
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Potassium chloride
B
A
A
A
A
A
A
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Potassium hydroxide ≤ 50°C
B
C
A
A
D
B
C
B
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Potassium sulfate 10%
B
A
A
A
A
A
A
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Propane (liquefied)
A
A
D
A
A
A
D
D
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Prussic acid
X
C
A
X
A
B
C
B
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Sea water
C
A
A
A
A
A
A
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Sodium bicarbonate
A
A
A
A
A
A
A
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Sodium chloride 5%
B
A
A
A
A
A
A
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Sodium nitrate ≤ 40%
B
A
A
A
C
B
D
B
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Sodium phosphate
B
C
A
A
A
A
A
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Sodium sulfate 10%
B
A
A
A
A
X
A
X
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Sulfuric acid 10% 60°C
D
D
B
A
A
D
D
C
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Sulfuric acid, smoking
D
D
X
A
X
X
X
X
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Sulfuric acid 100%. moist
C
C
X
A
X
D
D
C
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Sulphur dioxide (dry)
X
C
A
X
A
D
B
C
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Tartaric Acid 10% 100°C
C
A
B
A
A
A
A
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Toluol 20°C
X
A
A
X
C
X
X
X
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Trichloroethylene
B
C
D
A
A
C
D
D
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Turpentine
A
C
D
A
A
A
D
D
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Water ≤ 100°C
A
A
A
A
B
A
A
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Water, deionised
A
A
A
A
A
A
A
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Water, distilled
A
A
A
A
A
A
A
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Zinc chloride
B
A
A
A
A
A
X
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Zinc sulfate 10%
B
A
A
A
A
A
A
B
About Teflon PTFE Rubber Seals
Maximum Seal Temperature: +200-250°C
Other Titles: Polytetrafluoro Ethylene (PTFE). Aside from Teflon, trading names include Fluon, Dyneon and Dakin-Polyflon.
Teflon (PTFE) is known for the non-reactive and non-ageing properties which can withstand temperatures from –240°C to +260°C. This makes Teflon suitable for most industrial corrosive chemicals and solvents.
Teflon is used for a range of valve seats including 2pc & 3pc Ball Valves, L & T Port Valves, Piston Check Valves, Needle Valves and Threaded Sampling Valves.
Blue Monster Thread Sealing Tape is also 99.6% PTFE and Stainless Steel Thread Sealing Tape is 90% PTFE which can perform within a temperature range of -268°C to +260°C.
Maximum Seal Temperature: +200-250°C
Other Titles: Polytetrafluoro Ethylene (PTFE). Aside from Teflon, trading names include Fluon, Dyneon and Dakin-Polyflon.
Teflon (PTFE) is known for the non-reactive and non-ageing properties which can withstand temperatures from –240°C to +260°C. This makes Teflon suitable for most industrial corrosive chemicals and solvents.
Teflon is used for a range of valve seats including 2pc & 3pc Ball Valves, L & T Port Valves, Piston Check Valves, Needle Valves and Threaded Sampling Valves.
Blue Monster Thread Sealing Tape is also 99.6% PTFE and Stainless Steel Thread Sealing Tape is 90% PTFE which can perform within a temperature range of -268°C to +260°C.
About FKM (Viton) Rubber Seals
FKM seals are made from fluoroelastomer rubber, which is a synthetic rubber that offers excellent resistance to high temperatures, chemicals, and oils. They are suitable for use in a wide range of industries, including food & beverage, automotive, aerospace, chemical processing, and oil and gas.
FKM seals can operate in temperatures ranging from -20°C to +220°C, and have superior resistance to a variety of chemicals, including acids, bases, alcohols, fuels, and hydraulic fluids. They are commonly used in applications that involve aggressive chemicals, extreme temperatures, or high pressure.
FKM seals have excellent resistance to oil and grease, making them suitable for use in the automotive and marine industries, where they are often used for sealing oil and fuel systems.
The Metal Company can supply FKM seals for a variety of our fittings, and our RapidPress Inox Extreme range comes standard with FKM seals. Other products that have FKM seals available include Tri-Clover unions, RJT Unions, A and E series butterfly valves.
FKM seals are made from fluoroelastomer rubber, which is a synthetic rubber that offers excellent resistance to high temperatures, chemicals, and oils. They are suitable for use in a wide range of industries, including food & beverage, automotive, aerospace, chemical processing, and oil and gas.
FKM seals can operate in temperatures ranging from -20°C to +220°C, and have superior resistance to a variety of chemicals, including acids, bases, alcohols, fuels, and hydraulic fluids. They are commonly used in applications that involve aggressive chemicals, extreme temperatures, or high pressure.
FKM seals have excellent resistance to oil and grease, making them suitable for use in the automotive and marine industries, where they are often used for sealing oil and fuel systems.
The Metal Company can supply FKM seals for a variety of our fittings, and our RapidPress Inox Extreme range comes standard with FKM seals. Other products that have FKM seals available include Tri-Clover unions, RJT Unions, A and E series butterfly valves.
About Silicone Rubber Seals
Maximum Seal Temperature: +180°C
Silicone is an elastomer with exceptionally high performance and good resistance to temperature fluctuations, fungal growth and UV exposure.
The Metal Company use white silicone for valve seals on A & E Series Butterfly Valves and Sampling Diaphragm Valves.
Maximum Seal Temperature: +180°C
Silicone is an elastomer with exceptionally high performance and good resistance to temperature fluctuations, fungal growth and UV exposure.
The Metal Company use white silicone for valve seals on A & E Series Butterfly Valves and Sampling Diaphragm Valves.
About EPDM Rubber Seals
Operating temperature Min/Max degrees centigrade: -20* / +120 °C
Operating pressure maximum in bar: 16
Fields of application: Potable Water Heating, Cooling and Refrigeration, Circuits Treated Water, Desalinated Water, Rainwater Compressed Air (Classes 1-4)
Other Titles: Ethylene Propylene Diene Monomer
Ethylene Propylene Diene Monomer (EPDM) is a long-lasting synthetic rubber which is suitable for hot water, steam, alcohols, coolants, acids and bases. It is not resistant to mineral oils, greases or fuels. EPDM seals are used for flexibility, good insulation properties and the general temperature range of -20°C and +120°C.
The black EPDM sealing ring from ø 15 – 54 mm is supplied with an additional safety feature that during pressure tests will lead to leakage in the case of accidentally unpressed connections.
The Metal Company use black EPDM rubber for standard seals on stainless steel and carbon steel press fit fittings, standard seals for BSP threaded Mac Unions and standard seals for Tri Clover unions. Green EPDM Rubber is used as chemical-resistant seals for RJT stepped seals. EPDM is used for a range of valve seals including Mini Ball Valves, Sanitary Non-Return Valves, A & E Series Butterfly Valves, Sanitary Ball Valves and Inline Non-Return Valves.
Operating temperature Min/Max degrees centigrade: -20* / +120 °C
Operating pressure maximum in bar: 16
Fields of application: Potable Water Heating, Cooling and Refrigeration, Circuits Treated Water, Desalinated Water, Rainwater Compressed Air (Classes 1-4)
Other Titles: Ethylene Propylene Diene Monomer
Ethylene Propylene Diene Monomer (EPDM) is a long-lasting synthetic rubber which is suitable for hot water, steam, alcohols, coolants, acids and bases. It is not resistant to mineral oils, greases or fuels. EPDM seals are used for flexibility, good insulation properties and the general temperature range of -20°C and +120°C.
The black EPDM sealing ring from ø 15 – 54 mm is supplied with an additional safety feature that during pressure tests will lead to leakage in the case of accidentally unpressed connections.
The Metal Company use black EPDM rubber for standard seals on stainless steel and carbon steel press fit fittings, standard seals for BSP threaded Mac Unions and standard seals for Tri Clover unions. Green EPDM Rubber is used as chemical-resistant seals for RJT stepped seals. EPDM is used for a range of valve seals including Mini Ball Valves, Sanitary Non-Return Valves, E Series Butterfly Valves, Sanitary Ball Valves and Inline Non-Return Valves.
About Nitrile Rubber (NBR) Seals
Maximum Seal Temperature: +100-120°C
Other Titles: Buna-N, Perbunan, Acrylonitrile Butadiene Rubber or Nitrile-Butadiene Rubber (NBR).
Nitrile (NBR) is a synthetic rubber which is suitable for oils, hydrocarbon fuels, hydraulic fluids, fats and flame retardant liquids.
The Metal Company use white nitrile rubber for food grade quality (FQ) flange gaskets. Blue nitrile rubber is used for standard RJT stepped seals with a maximum temperature of 100°C and DIN O-ring seals with a maximum temperature of 120°C. Black nitrile rubber is used for camlock gaskets. Nitrile is also used for black seals on Table E Lugged Butterfly Valves, with a maximum temperature of 120°C.
Maximum Seal Temperature: +100-120°C
Other Titles: Buna-N, Perbunan, Acrylonitrile Butadiene Rubber or Nitrile-Butadiene Rubber (NBR).
Nitrile (NBR) is a synthetic rubber which is suitable for oils, hydrocarbon fuels, hydraulic fluids, fats and flame retardant liquids.
The Metal Company use white nitrile rubber for food grade quality (FQ) flange gaskets. Blue nitrile rubber is used for standard RJT stepped seals with a maximum temperature of 100°C and DIN O-ring seals with a maximum temperature of 120°C. Black nitrile rubber is used for camlock gaskets. Nitrile is also used for black seals on Table E Lugged Butterfly Valves, with a maximum temperature of 120°C.
About HNBR Rubber Seals
Operating temperature Min/Max degrees centigrade: -20 / +70 °C
Operating pressure maximum in bar: 5
Fields of application: Natural gas, Methane gas LPG (gaseous state)
Other titles: Highly Saturated Nitrile, Halogenated Acrylonitrile Butadiene, trade names include Zeptol, Therban or Zhanber.
Hydrogenated Nitrile Butadiene Rubber (HNBR) is resistant to abrasion and retains properties when exposed to heat, oil, gas or steam. In some situations, HNBR rubber can withstand up to 140°C temperatures for a short period of time.
Yellow HNBR rubber is used for seals on press fit fittings to suit gas systems. It is suitable for temperatures between -20°C and +70°C, and for pressures up to a maximum of 70PSI / 5Bar.
Operating temperature Min/Max degrees centigrade: -20 / +70 °C
Operating pressure maximum in bar: 5
Fields of application: Natural gas, Methane gas LPG (gaseous state)
Other titles: Highly Saturated Nitrile, Halogenated Acrylonitrile Butadiene, trade names include Zeptol, Therban or Zhanber.
Hydrogenated Nitrile Butadiene Rubber (HNBR) is resistant to abrasion and retains properties when exposed to heat, oil, gas or steam. In some situations, HNBR rubber can withstand up to 140°C temperatures for a short period of time.
Yellow HNBR rubber is used for seals on press fit fittings to suit gas systems. It is suitable for temperatures between -20°C and +70°C, and for pressures up to a maximum of 70PSI / 5Bar.
About Insertion Rubber Seals
Maximum Seal Temperature: +70°C
Insertion rubber is manufactured with cotton reinforcement to assist tensile strength and resistant to splitting. This is a general-purpose rubber and can withstand a low temperature range.
The Metal Company use black insertion rubber for standard flange gaskets.
Maximum Seal Temperature: +70°C
Insertion rubber is manufactured with cotton reinforcement to assist tensile strength and resistant to splitting. This is a general-purpose rubber and can withstand a low temperature range.
The Metal Company use black insertion rubber for standard flange gaskets.
