The LCD Profile is specifically engineered to meet the extreme performance requirements of oil and gas drilling, marine riser and pressure control applications. Constructed from premiere HNBR and FKM Parker materials which are sour gas resistant, and tested to industry standards, including API 6A and 16C, the LDC profile features high-squeeze geometry and multiple specialized sealing lips to deliver robust leakage control for longer life and corrosion resistance.

While its geometric silhouette gives an appearance of having an o-ring energizer, the LCD profile is a one-piece, homogenous seal. Single piece construction provides greater capability over traditional o-spring energized seals in handling rapid system depressurization since there’s no possibility of an energizer becoming dislodged during rapid pressure change.
Back-bevel primary sealing lips provide excellent film breaking and leak-free service. Improved stability is achieved from multiple sealing lips activated by compressive force, which not only improve stability, but are true sealing lips. These dual I.D. and O.D. sealing lips at the heel provide aggressive seal performance from the back side to minimize vulnerability and exposure vulnerable to sea water and fluids which corrode the primary sealing surface.

With more of the primary sealing surface protected from corrosion, seals last longer. Scheduled drill string rebuilds due to corrosion and seal failure can be extended, maximizing up time and improving productivity.

Our standard availability is in Parker’s premiere, specialty oilfield elastomers which include HNBR and FKM compounds which have been evaluated to API 6A FF/HH, API 16C, ISO 23936-2, TOTAL and NACE TM0192-2003 and are compatible with diesel muds. Our materials' thermal capability spans a wide temperature range, from -49F to 400F (-45C to 204C), depending on material selection The LCD profile also accommodates easy retrofitting since it is designed to fit standard groove dimensions utilized by a wide range of commercially available seals having the same seal height and cross-section.

Features of Parker’s LCD Profile seal include:
• One-piece design eliminates issues experienced with two-piece seals when o-ring expanders becoming dislodged during rapid depressurization
• Back beveled, lathe-cut primary sealing lips provide concentrated, high compressive force sealing
• Unique secondary sealing lips at base of heel on ID and OD create positive seal to minimize gland corrosion due to sea water intrusion
• Fits standard groove dimensions utilized by a wide range of commercially available seals having the same seal height and cross-section
• Tough, wear-resistant Parker materials tested to oil and gas industry standards, including, API 6A and API 16C
• Sour gas resistant
• Wide temperature range capability of -49F to 400F (-45C to 204C)

Standard Materials:
N4007A90 HNBR
N4263A90 XNBR

Typical Range of Temperature and Pressure Capability:
4033A90 (HNBR); Temp Range: -25°F to 300°F (-32°C to 148°C); Pressure: 10,000 psi (689 bar)
VG109-90 (FKM); Temp Range: -49°F to 400°F (-45°C to 204°C) ; Pressure: 10,000 psi (689 bar)

Alternate Materials:
For applications that may require an alternate material, please contact your Parker EPS representative.

Typical Applications:
• Subsea drilling
• Oil and Gas pressure control systems
• Subsea riser connector joints
• Blow out preventers

Availability:
Part numbers shown in the configurator above represent select materials and sizes. If the material and dimensions required are not shown, assistance with part number configuration may be found in the literature documents in the Product Support tab. Contact Parker or your Authorized Parker Distributor for requirements outside typical ranges and for tooling availability.