DO YOU FREEZE IN CRYOGENIC APPLICATIONS ?

Cryogenic Sealing Solutions provide a strong sealing mechanism for materials held at cryogenic temperatures, such as cryogenic fluids. Most commonly used are liquid helium and liquid nitrogen, which boil at very low temperatures, below −153°C (120K), as well as hydrocarbons with low freezing points and refrigerating mixtures.

Typically, applications where temperatures fall below -238°F (or -150°C)  to absolute zero which is -460°F (or -273°C) are considered cryogenic. Typical cryogenic applications include:

• LNG fueling systems and compressors

• rocket propulsion filling systems

• specialty gas manufacturing

• scientific instrumentation

• magnetic resonance imaging

• infrared telescopes

• radio astronomy

• biosystems

• satellite tracking systems

• pharmaceutical research

Cryogenic fluids include liquid oxygen, liquid hydrogen, liquid helium, hydrocarbons that have very low freezing points, refrigerants, and coolants.  In fact, cryogenics can be traced back to the 1800s and the first use of refrigerants.

ENGINEERING CRITICAL APPLICATIONS OF MINING...

Safety is the highest priority when it comes to working underground. This puts the greatest possible quality demands on mining machinery, products and service providers. At the same time, operating efficiency plays a key role in this industry as well. So it is essential to bring three factors into harmony: cost minimization and the simultaneous maximization of productivity and safety. 

Sand, mud, water and fallen rocks are just a few of the challenges facing seals in mining operations. In addition, there are peak pressures of up to 250 MPa, which require a special sealing element design. High extrusion resistance is especially in demand. Parts of the seal should not extrude into the clearance gap between the equiptment elements.

Extending the operations intervals between overhauls and repair downtimes is crucial, since overhauls and repair downtimes cost indirect loss of profit.

WILL RUBBERISED FABRICS PROTECT YOU ?

RUBBERISED FABRICS will protect you in harsh conditions. We provide rubberised fabrics, which will withstand weathering, chemicals, fire, solvents, chemical gases, oils and liquid chemicals, as well as shocks, cuts, abrasion, tearing and perforations.

Suit up - yourself - jet fuel tank - oil tanker - chemical transportation - in all harsh conditions!

ARE YOU SUIT UP FOR HARSH CONDITIONS ?

HIGH PERFORMANCE RUBBERISED FABRICS will protect yourself - jet fuel tank - oil tanker - chemical transportatio - to withstand weathering, chemicals, fire, solvents, chemical gases, oils and liquid chemicals, as well as shocks, cuts, abrasion, tearing and perforations.

Call our Customer Support Center for free consultation!

THERMAL & CHEMICAL RESISTANCE for SEMICON & PLAZMA

Our white colored fluoroelastomer (FKM) developed as a ‘clean’ high performance material for use in demanding applications within the semiconductor and flat panel display industries.

The extremely high fluorine content of the material provides exceptional thermal resistance (up to +250°C) and outstanding chemical resistance to steam and acids. Our FKM incorporates an inert reinforcing filler system that reduces particulation in critical sealing applications and a proprietary ‘addition-type’ curing system which further enhances chemical resistance.

Our white colored fluoroelastomer (FKM) provides excellent sealing performance due to its low compression set and ideal modulus, which ensures maximum long-term sealing efficiency.

MARINE ENGINES & POWER GENERATION

We offer materials, which have been at the forefront of Diesel and Gas Engine sealing technology. As a leading supplier of high temperatures seals for diesel and gas engines for both marine propulsion and electricity generation. We understand that engine manufacturers and operators are under pressure to achieve higher efficiencies, improved fuel economy, reduced emissions and extended maintenance intervals.

A combination of superior seal designs and high performance materials ensures that seals continue to be specified on 2 and 4 stroke engines from small to large capacity.

The elastomer materials have been developed for long-term resistance to coolants, lubricating oils, corrosion inhibitors and fuels - from high grade diesel and unrefined gases to aggressive heavy fuel oils (HFO).

We offer a complete range of engineered solutions for engine sealing requirements including O-rings, D-rings, U-section seals, lip seals, custom profiles and composite parts. 

ALL-IN-ONE MULTI-PURPOSE ULTRA-HOT APPLICATIONS

DANCO INDUSTRY is proud to present to you the ultimate ‘next generation’ perfluoroelastomer, offering a combination of excellent chemical resistance and ultra-high temperature stability at +327°C, simultaneously extending the operating limits in all aspects.

This special material has been formulated to provide increased resistance to a broad range of chemicals by carefully controlling the molecular architecture. In addition, this perfluoroelastomer has low permeability and as a result, it is less prone to swelling, leading to extended inservice performance in, for example, valves, pumps and mechanical seals.

Ultra-High temperature perfluoroelastomer with excellent chemical resistance is suitable for both dynamic and static applications and can be fully moulded into O-rings any size up to 2.5m and custom shapes.

HIGH-TEMP LEED-FREE FLUOROELASTOMER for BIOFUELS

A peroxide-cured tetrapolymer formulated for high performance sealing applications in today’s aggressive industrial environments.

This special material been developed to provide outstanding resistance to solvents, fuels, hot water and steam ranging from +150°C to +250°C.

It also offers superior resistance to acids, oils, coolants and hydraulic fluids, making it ideal for use in fuel systems, chemical processing equipment and certain critical diesel engine locations.

Alternative to lead-containing (litharge-cured) steam resistant grades.

LOW TEMPERATURE ED RESISTANT HNBR for OILFIELD INDUSTRY

DANCO INDUSTRY is proud to present to you a new technology peroxide cured hydrogenated nitrile elastomer compound. It is specially developed for high pressure applications to reduce the risk of rapid gas decompression seal failure and maintain resilience at low temperatures of -55°C.

The low temperature ED resistant HNBR has been specifically developed for Explosive Decompression (ED) resistance. It meets the requirements of the industry standards ISO 23926-2 and NORSOK M710 unlike conventional low temperature HNBR materials. This unique combination of properties enables this special material to be used in many types of oilfield equipment.

Applications could include valves, downhole tools, drill bits, subsea equipment, wellhead, and other surface equipment.

DO YOU OPERATE IN COLD ENVIRONMENT ?

We offer low-temperature NBR one of its kind, that is capable of retaining its elastomeric properties at temperatures as low as -60°C.

This revolutionary material allows engineers to extend the effective limit of their equipment in low temperature applications.

ARE YOU MANUFACTURING SEMICONDUCTORS ?

Semiconductor production environments represent some of the most aggressive environments encountered by seals. Seals have to be made of ultra-pure materials, survive extreme temperatures and a mixture of fluorinated gases. For these reasons, seals for the semiconductor industry are at the cutting edge of material technology. We cover a range of specially developed high performance materials for use in critical semiconductor environments.

The relentless drive to improve productivity and increase wafer yields has resulted in increased process temperatures, use of more aggressive gases and increased plasma density, all of which place escalating demands on current sealing technology. Perfluoroelastomers compounds have been created to withstand temperatures up to 330°C in aggressive media such as activated fluorine-based chemistries.  

DO YOU NEED HAZARD PROTECTION ?

We supply superior high performance rubberised fabrics for chemical and fire protection equipment. A wide range of material fabrics with chemical and mechanical outstanding performance characteristics, suitable for use in finished products of different rubber applications, which conform to critical requirements and guarantee for hazardous protection use. 

DO YOU NEED MAX CHEMICAL RESISTANCE FOR OILFIELD INDUSTRY ?

We are proud to present to you an unique combination of excellent chemical resistance, outstanding explosive decompression resistance and low temperature capability down to -46°C.

The low temperature ED resistant FFKM has been formulated to provide excellent resistance to a broad range of chemicals by carefully controlling the molecular architecture. Suitable for both dynamic and static applications - extends in-service performance in valves, pumps and mechanical seals.

Ideal for use in exploration and completion applications and equipment operating or stored in sub-zero conditions.

DO YOU WORK WITH NUCLEAR RADIOACTIVITY ?

We offer a wide range of materials, which are suitable for use with ionising radiation and hazardous materials, including industry-accepted EPDM, Nitrile, FKM and Polyurethane grades.

We have expertise and capabilities in the design and development of seals for high containment applications - from material process through to transportation and storage.

ARE YOU ON THE ROAD ?

Sealing technology has a crucial impact on heavy trucks and busses system performance. Service life and reliability of what is often considered a simple component can make all the difference to your products and operations.

We offer seals for the transportation industry. We are a reliable partner for advanced sealing solutions in regards to cars, light vehicles, heavy trucks, buses, two-wheelers and railways.

We supply radial lip shaft seals for rotor systems, engines, gearboxes, transmissions, auxiliary power units, etc. Our custom designed products have the ability to carry heavy loads while absorbing, dampening and/or controlling large deflections occurring simultaneously in several directions.

The performance and service life of your trucks and busses is directly related to the sealing solution technology which we choose together.

DO YOU CARE ABOUT LIFE ON EARTH ?

DANCO INDUSTRY ‘Fit and Forget Bearing Solution’ is 100% ecological...

We offer marine bushes from material which has been specifically developed for water lubricated rudder.

Our ‘Fit and Forget Bearing Solution’ is 100% ecological, and it has been tested and proven to offer superior performance in terms of wear, extended life and low shaft wear over other water lubricated bearing materials.

The advantages of our solution is: High load capability, Approved for wet and dry operation, Very low stick - slip, Short delivery time (repair 48 hours), Good elasticity, Dry, oil, grease, water operation, Can be freeze fitted, Compressive Strength (flatwise) > 330 N/mm2, Compressive Strength (edgewise) > 150 N/mm2, Very low swell, Low wear characteristics - long life, Maintenance free, Good dimensional stability, Competitive price, Environmentally friendly.

DO YOU FEEL THE RISING CHALLENGES OF OIL & GAS ?  

Meet the OIL & GAS challenges of the most inhospitable operating environments in the world, encountering explosive decompression, sour gas, extreme temperatures and aggressive chemicals.

We supply components into a wide range of applications, including safety critical rubber/metal bonded blow-out preventor seals, low friction sampling cylinder seals and fully moulded O-rings up to 2 metres in diameter for use on pipe couplings and large pumps.

ARE YOU OPERATING IN WINTER ?

We offer low-temperature, explosive decompression resistant, FKM of its kind that is capable of retaining its elastomeric properties at temperatures as low as -51°C. This revolutionary material allows engineers to extend the effective limit of their equipment in low temperature applications.

DO YOU KNOW HOW WE CARE FOR YOUR HEALTH ?

We offer a full range of sealing technology for pharmaceutical and bio-analytical industries where both mechanical and chemical properties are crucial, and hygienic sealing capability is critical. Our pharmaceutical material grades include EPDM, Nitrile, Silicone, FKM and FFKM, which have been specially developed to withstand steam-in-place (SIP) and clean-inplace (CIP) procedures within pipework and vessels. In addition, many of these materials are compliant with the requirements of the Food and Drug Administration (FDA), United States Pharmacopeia - Class VI (USP Class VI) and 3-A Sanitary Standards.

ARE YOU OPERATING IN "Extreme Winter & Chemical Durability"?

We offer low-temperature, explosive decompression resistant, FKM of its kind that is capable of retaining its elastomeric properties at temperatures as low as -51°C. This revolutionary material allows engineers to extend the effective limit of their equipment in low temperature applications.

DO YOU KNOW WHAT IS Explosive Decompression ?

Explosive Decompression - permeation of a gas into an elastomer under high pressure. It may not result in any long term effect provided the pressure is released gradually, allowing the gas to permeate out of the elastomer. However, if the pressure is released rapidly, the pressurised gas can expand explosively, rupturing the elastomer in a catastrophic manner. We offer a number of materials which have been formulated to be resistant to explosive decompression including ...Aflas®, FKM and HNBR. We work with a laboratory which posses one of the most advanced explosive decompression testing units in Europe. Capable of testing seals of various geometries up to 10,000 psi, under varying compression, over any desired cycle/time within a temperature range from subzero up to +250°C. With pressure, temperature and pressure release cycles simulating actual field operation, independent testing can be carried out to confirm the performance of seal types and grades before installation.

IS YOUR APPLICATION AS HOT AS WE SEAL ?

We offer an EPDM sealing material which performes at a maximum temperature rating in anaerobic steam up to 288°C, and may be used in short durations up to 315°C (600°F) in steam. This performance greatly exceeds standard EPDM materials.

Additionally, we provide a broad range of FFKM, resitant both to high percentage chemicals saturation (including methanol and sour gas), and extremely high temperature to +325°C.

ARE YOU SEALING CHEMICALS AT LOW TEMPERATURE ?

Low temperature performance of elastomer seals is becoming more important with the commercialisation of oilfields in cold locations, such as in Alaska, the North Sea and Russia. Traditionally, FKM seals have not been recommended for low temperature dynamic applications below -30°C (-22°F). This is due to the Glass Transition Temperature (Tg) of most low temperature ED resistant FKM elastomer formulations. The Tg is the temperature at which an elastomer changes its physical pr...operties from elastic and pliable to rigid and brittle and, as a result, loses its sealing ability. Any movement of either the seals or the mating surfaces of the equipment at this temperature could result in damage to the seal surface in the form of cracking or splitting. High pressure has the apparent effect of increasing the Tg of an elastomer; as a general rule, for every 5 MPa (725 psi) bar increase in pressure, the Tg increases by 1°C. This has significant implications for engineers involved in the selection of elastomer seals. For example, an elastomer having a Tg of -30°C (-22°F) at atmospheric pressure, would in effect have a Tg of only -20°C (-4°F) when the pressure acting on the seal is increased to 50 MPa (7250 psi).

IS IT CRITICAL ? CALL US NOW !

Our core operations are closely connected to sealing systems technology development and materials capability knowhow. We are partners to organisations seeking practical support to solve a challenge – be it manufacturing, processing, evaluation, failure analysis or optimisation.