Parker 9-240 High Pressure Rubber Back Up Ring NBR90 for Hydraulic Cylinders - AS568 Standard 1.78mm to 6.99mm Cross-Section
Price:
USD 0.20/PCS
MOQ:
100PCS
Delivery Time:
7-10 days
Brand:
DZK
Product Description
Parker 9-240 High Pressure Rubber Back Up Ring NBR90
This high-performance rubber back up ring is specifically engineered for hydraulic cylinders and reducing/relieving valves. Designed to support O-rings under extreme pressure conditions, it enhances sealing performance and extends component lifespan.
Product Applications
• Hydraulic cylinder systems
• Pressure reducing valves
• Pressure relieving valves
• High-pressure fluid power applications
Material Specifications
| Material | Temperature Range |
|---|---|
| NBR | -40 to 100 ℃ |
| FKM | -20 to 200 ℃ |
| FFKM | -20 to 320 ℃ |
| HNBR | -40 to 150 ℃ |
| AFLAS | -30 to 175 ℃ |
| VMQ/SILICON | -70 to 220 ℃ |
| FVMQ | -60 to 175 ℃ |
| EPDM | -50 to 150 ℃ |
| CR | -40 to 120 ℃ |
| SBR | -40 to 110 ℃ |
| PU | -40 to 90 ℃ |
| PTFE | -100 to 280 ℃ |
| IIR | -20 to 120 ℃ |
| ACR | -25 to 150 ℃ |
Technical Specifications
• Standard: AS568 compliant
• Size calculation: ID × W × A/T
• Cross-section dimensions: 1.78mm to 6.99mm
• Compatible with standard O-ring sizes
| AS568 Size Range | Cross-Section |
|---|---|
| AS0xx | 1.78mm |
| AS1xx | 2.62mm |
| AS2xx | 3.53mm |
| AS3xx | 5.33mm |
| AS4xx | 6.99mm |
Quality & Manufacturing
• ISO 9001:2015 certified manufacturing
• REACH and RoHS compliant materials
• 100% inspection before shipment
• Customization and OEM production available
• Free samples available (freight charges apply)
Material Selection Guidance
Material selection depends on specific application requirements including operating medium, temperature range, and pressure conditions. Our technical team can provide expert guidance for optimal material selection.
Shipping Options
• Small orders: Express delivery (DHL, FEDEX, UPS, TNT)
• Large orders: Air freight or sea freight
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Xiamen Dezhengkai Sealing Technology Co., Ltd
Location
No55 north pingcheng road.Haicang district,Xiamen City,Fuiian Province.China.
Contact Person
Gao