Resilon D-Ring Seals
Parker has combined its proprietary polyurethane technology with a new seal design to improve the sealing performance and assembly of hydraulic valves. Parker’s Resilon® 4300 polyurethane “D”-rings are a one-piece, hydraulic valve sealing solution which delivers longer life over traditional multi-component seals.
Assembly is easy! The unique “D”- ring shape provides sealing in critical areas while reducing the chance of a seal being cut during installation. This unique seal design, when combined with Parker’s proprietary high performance Resilon polyurethane extends seal life and reduces warranty costs.
Product Highlights:
- Proprietary wear resistant and compression set resistant Resilon 4300 polyurethane provides long life
- Available in Resilon 4301 polyurethane for compatibility with water and oil-based fluids
- Pressure capable to 10,000 psi • Easy installation
D-Ring Design Advantages Resilon® Polyurethane Material No
The unique shape of the Parker “D”-ring also provides a variety of design advantages. The molded “D” shape which is higher in the middle and lower on the ends, provides sealing in critical areas while reducing the chance of a seal being cut during installation. Its sealing lip is minimized, thus reducing the amount of friction between seal and bore while providing expected sealing performance. The “D” shape is symmetrical so there is no performance degradation as the valve cycles in the reverse direction nor concern of backward installation of the seal. The design also incorporates “pressure pedestals” to eliminate the potential for “blow-by,” common in reverse cycling.
Resilon® Polyurethane Material
Resilon polyurethane was developed by Parker’s scientists and engineers to provide improved wear- and compression set-resistance in demanding applications and is considered one of the best hydraulic sealing materials available. The increased strength and resilience of Resilon 4300 polyurethane eliminates the need for back-up rings. Resilon 4300 is rated to perform in hydraulic fluids at service temperatures from -65 to +275°F.
When using high water content fluids at elevated temperatures, Parker recommends water- resistant Resilon 4301 polyurethane. Resilon 4301 polyurethane’s unique formulation
“D”-Ring Seal is a Problem Solver
Resilon® 4300 Polyurethane “D”-ring (DG Profile)
Parker’s Resilon 4300 polyurethane D-rings are a one-piece, sealing solution which delivers longer life and reduced warranty costs over traditional multiple-component seals. The increased strength and resilience of Resilon 4300 polyurethane eliminates the need for back-up rings and the challenges associated with the rings folding over on a corner inside the manifold during assembly. Its sealing lip is minimized to reduce the amount of friction between seal and bore while providing expected sealing performance The unique D-ring shape provides sealing in critical areas while reducing the chance of a seal being cut during installation. The “D” shape is symmetrical so there is no performance degradation as the valve cycles in the reverse direction or concern of backward installation of the seal. The design also incorporates “pressure pedestals” to lessen possibility of “blow-by,” common in reverse cycling.
Your Problem: Back-up and O-ring Seal Failure
Back-up and O-ring seal failure
Back-up pinches during installation- Nitrile and FKM seals wear out quickly
- O-ring rolls in the groove / spiral failure
Pesky back-ups and hard to install multi-piece seal
- Multi-component O-ring/back-up
- Worrisome placement of the O-ring and back-up. Is it t on the pressure side? Tank side?
- Inelastic PTFE back-ups are difficult to re-seat
Problem Solved: Parker’s Resilon “D”-Ring Solution
Resilon 4300 Polyurethane “D”-Ring
- Extrusion resistant
- High strength material + “D”-ring design eliminates need for r back-ups
- Will not roll in the groove
Part Numbering and Dimensions
This warranty comprises the sole and entire warranty pertaining to items provided hereunder. seller makes no other warranty, guarantee, or representation of any kind whatsoever. All other warranties, including but not limited to, merchant ability and fitness for purpose, whether expressed, implied, or arising by operation of law, trade usage, or course of dealing are hereby disclaimed. Notwithstanding the foregoing, there are no warranties whatsoever on items built or acquired wholly or partially, to buyer’s designs or specifications.
Limitation of remedy: Seller’s Liability arising from or in any way connected with the items sold or this contract shall be limited exclusively to repair or replacement of the items sold or refund of the purchase price paid by buyer, at seller’s sole option. In no event shall seller be liable for any incidental, consequential or special damages of any kind or nature whatsoever, including but not limited to lost profits arising from or in any way connected with this agreement or items sold hereunder, whether alleged to arise from breach of contract, expressed or implied warranty, or in tort, including without limitation, negligence, failure to warn or strict liability.
- Details
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D-Ring Design Advantages Resilon® Polyurethane Material No
The unique shape of the Parker “D”-ring also provides a variety of design advantages. The molded “D” shape which is higher in the middle and lower on the ends, provides sealing in critical areas while reducing the chance of a seal being cut during installation. Its sealing lip is minimized, thus reducing the amount of friction between seal and bore while providing expected sealing performance. The “D” shape is symmetrical so there is no performance degradation as the valve cycles in the reverse direction nor concern of backward installation of the seal. The design also incorporates “pressure pedestals” to eliminate the potential for “blow-by,” common in reverse cycling.
Resilon® Polyurethane Material
Resilon polyurethane was developed by Parker’s scientists and engineers to provide improved wear- and compression set-resistance in demanding applications and is considered one of the best hydraulic sealing materials available. The increased strength and resilience of Resilon 4300 polyurethane eliminates the need for back-up rings. Resilon 4300 is rated to perform in hydraulic fluids at service temperatures from -65 to +275°F.
When using high water content fluids at elevated temperatures, Parker recommends water- resistant Resilon 4301 polyurethane. Resilon 4301 polyurethane’s unique formulation“D”-Ring Seal is a Problem Solver
Resilon® 4300 Polyurethane “D”-ring (DG Profile)
Parker’s Resilon 4300 polyurethane D-rings are a one-piece, sealing solution which delivers longer life and reduced warranty costs over traditional multiple-component seals. The increased strength and resilience of Resilon 4300 polyurethane eliminates the need for back-up rings and the challenges associated with the rings folding over on a corner inside the manifold during assembly. Its sealing lip is minimized to reduce the amount of friction between seal and bore while providing expected sealing performance The unique D-ring shape provides sealing in critical areas while reducing the chance of a seal being cut during installation. The “D” shape is symmetrical so there is no performance degradation as the valve cycles in the reverse direction or concern of backward installation of the seal. The design also incorporates “pressure pedestals” to lessen possibility of “blow-by,” common in reverse cycling.
Your Problem: Back-up and O-ring Seal Failure
Back-up and O-ring seal failure
- Back-up pinches during installation
- Nitrile and FKM seals wear out quickly
- O-ring rolls in the groove / spiral failure
Pesky back-ups and hard to install multi-piece seal
- Multi-component O-ring/back-up
- Worrisome placement of the O-ring and back-up. Is it t on the pressure side? Tank side?
- Inelastic PTFE back-ups are difficult to re-seat
Problem Solved: Parker’s Resilon “D”-Ring Solution
Resilon 4300 Polyurethane “D”-Ring
- Extrusion resistant
- High strength material + “D”-ring design eliminates need for r back-ups
- Will not roll in the groove
- Specs
-
Part Numbering and Dimensions
- Resources
- Warranty
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This warranty comprises the sole and entire warranty pertaining to items provided hereunder. seller makes no other warranty, guarantee, or representation of any kind whatsoever. All other warranties, including but not limited to, merchant ability and fitness for purpose, whether expressed, implied, or arising by operation of law, trade usage, or course of dealing are hereby disclaimed. Notwithstanding the foregoing, there are no warranties whatsoever on items built or acquired wholly or partially, to buyer’s designs or specifications.
Limitation of remedy: Seller’s Liability arising from or in any way connected with the items sold or this contract shall be limited exclusively to repair or replacement of the items sold or refund of the purchase price paid by buyer, at seller’s sole option. In no event shall seller be liable for any incidental, consequential or special damages of any kind or nature whatsoever, including but not limited to lost profits arising from or in any way connected with this agreement or items sold hereunder, whether alleged to arise from breach of contract, expressed or implied warranty, or in tort, including without limitation, negligence, failure to warn or strict liability.
