The CSP-type piston seal is a precision-engineered, double-acting sealing element specifically designed for pneumatic cylinder applications. Its compact geometry and advanced cross-section make it the ideal choice for standard cylinders, small-bore actuators, and thin-profile pneumatic systems where space is limited.
Smarter Than Ordinary O-Rings
What makes the CSP seal different? Its unique cross-sectional design delivers significantly better friction characteristics compared to conventional O-rings. The specialized profile effectively prevents rolling and twisting during operation—eliminating a common failure mode that plagues standard O-ring seals.
Compact Design, Simple Installation
The CSP seal features a miniature cross-section that enables installation in confined spaces where conventional seals cannot fit. Installation is refreshingly simple—just stretch it over the piston and into the groove. No special tools, no complicated procedures.
Material Options
| Material | Temperature Range | Best For |
|---|---|---|
| HNBR | -20°C to +80°C | Standard pneumatic, excellent wear resistance |
| Custom elastomers | Application-specific | Special requirements |
Operating Parameters
| Parameter | Specification |
|---|---|
| Maximum Pressure | 0~1.0 MPa (10 bar) |
| Temperature Range | -20°C to +80°C |
| Maximum Speed | 1 m/s |
| Media | Compressed air (lubricated or non-lubricated) |
| Installation | Easy stretch-fit over piston |
Why Choose CSP?
No Twisting: Unique geometry prevents rolling and twisting during operation
Low Friction: Better friction characteristics than conventional O-rings
Space Efficient: Small cross-section enables compact cylinder designs
Easy Assembly: Simple stretch-fit installation saves time
Long Life: Wear-resistant HNBR compound ensures durability
Proven Design: Trusted for solenoid valves and small cylinders
Installation Tips
Chamfer all sharp edges to prevent seal damage
For dry air operation, apply initial lubrication during assembly
Protect sealing surfaces from sharp edges during installation
Standard Size Range
The CSP series is available in sizes commonly used for solenoid valves:
| Valve Series | Outer Dia. | Inner Dia. | Height |
|---|---|---|---|
| 4V100 | 6.12 mm | 3 mm | 1 mm |
| 4V110 | 7.2-7.7 mm | 3.2-4 mm | 1 mm |
| 4V210 | 10-10.4 mm | 4-6 mm | 1-1.3 mm |
| 4V310 | 11.15-12.6 mm | 5.5-8 mm | 1-1.5 mm |
| 4V360 | 14-14.15 mm | 6.9-9 mm | 1.3-1.5 mm |
| 4V410 | 16-16.5 mm | 7.5-9 mm | 1.5 mm |
Typical Applications
Standard Pneumatic Cylinders: General automation and industrial systems
Small Diameter Cylinders: Compact actuators in precision equipment
Thin Cylinders: Space-constrained applications
Solenoid Valves: 4V series pneumatic valves
Industrial Automation: Assembly lines, packaging, material handling
The CSP Piston Seal delivers compact precision with torsion-resistant design—engineered for pneumatic applications where space matters and reliable sealing is non-negotiable.
Original text from: pneumatic seal https://www.bszzseal.com/
