Parker VX065-75
Extreme Low Temperature FKM
Meeting the Industry Need for -65° F Sealing:
Facing the demanding requirements of the aerospace industry, VX065-75 delivers the extreme low temperature performance needed at high altitudes and during engine startup. With outstanding compression set resistance, seal life in low temperature fuel applications where traditionally only characteristics make VX065-75 the ideal material when looking for or lower temperature performance from an FKM.
Product Features:
- Wide Temperature Range: -65°F to 400°F (-54°C to 204°C)
- Excellent Compression Set Resistance
- Extreme Low Temperature Performance
- 75 Shore A Durometer
- Excellent Jet Fuel Compatibility
- Excellent HTS Oil Compatibility
- FKM Durability
Parker VG292-75
Coolant resistant low temperature FKM
Excellent Resistance:
Parker's VG292-75 offers new to world resistance to all Heavy Duty Diesel Engine coolants and -40°C sealing capability. Extensive laboratory testing has shown VG292 has excellent resistance to ethylene glycol based coolants as well as Organic Acid Technology (OAT) coolants, NOAT’s and Hybrids like G40. VG292-75 has also been compounded for industry leading compression set resistance, a property not typical of coolant resistant, low temp FKM.
Benefits:
- -40°C capable sealing
- Rated 150°C continuous usage in coolant, 175°C excursions
- Improve service life of cylinder liner seals, EGR coolers and aftercoolers
- Excellent resistance to extended life coolants
- Readily available - samples possible in 2-3 weeks
- ULSD resistant
Parker VM125-75 for Aerospace Applications
O-Ring Division
AMS7287 Applications
AMS7287 supersedes the long time specification, AMS-R-83485, for the aerospace industry. Covering a wide variety of gas turbine engine lubricants, higher thermo-oxidative stability (HTS) lubricants like Mil-PRF-23699 (HTS), Mil-PRF-7808 Grade 4 and AS5780 Class HPC, as well as a variety of jet fuels, the specification demands a material with superior chemical resistance. With respect to temperature, AMS7287 also calls for a thermally stable compound, for seal functionality at very high and low temperatures.
Parker’s VM125-75 has the chemical resistance, high temperature compression set resistance and low temperature flexibility to meet the increasing demands of the industry. Approved to qualified products list, VM125-75 meets AMS7287, as well as the preceeding document, AMS-R-83485.
Product Features:
- Best in class compression set
- -40°F to +400°F (-40°C to +204°C)
- Outstanding HTS turbine oil compatibility
- Outstanding jet fuel compatibility
- AMS7287 QPL approved, AMS-R-83485 approved
ULTRA™ and HiFluor™
FFKM Spliced O-Rings
Large Diameter FFKM O-rings:
Parker O-Ring Division, the leader in cutting edge elastomer technology, has been manufacturing FKM spliced O-rings to stringent aerospace standards for 17 years. Utilizing years of space flight sealing experience, the division has now perfected the bonding technology on FFKM materials FF200-75, FF202-90, and FF582-90.
Through a proprietary splicing process, Parker O-Ring Division is now able to offer most ULTRA and HiFluor™ materials in any size. This unique methodology utilizes a fully vulcanized and cured splice. This provides a superior splice, allowing Parker to meet even your largest diameter needs.
Benefits
- Available with most ULTRA and HiFluor compounds
- No "maximum" restriction on diameter for spliced parts
- Minimum inside diameter of 25"
- Available in 0.139", 0.210", 0.275" standard cross-sections
- Available in both –UHP and non –UHP formats
- No tooling costs
- Fully vulcanized and cured splice resulting in strength indicating that of parent bulk material
Spliced Parker FFKM Evaluation
Objective:
Parker O-Ring Division has conducted testing to establish tensile and elongation properties of single strand spliced FFKM samples in comparison with non-spliced single strand samples.
Methods:
All physical properties were gathered from single strand cord segments using ASTM D1414 test methodology.
Discussion:
The samples tested were FF102-75 and FF200-75. These materials were selected for initial splice testing since they are used across multiple markets. The tensile and elongation measurements were normalized to the non-spliced single strand material.
Conclusion:
Compounds FF102-75 and FF200-75 demonstrate greate spliced tensile and elongation properties. The FF200-75 splice tensile strength was 96% of the original non-spliced single strand material, followed by FF102-75 which was 86% of the original non-spliced single strand. In testing, the strand rupture occurred perpendicular to the spliced between the spliced and non-spliced joints regardless of compound.