CB-SP-6FN-RW Flat-Face Hydraulic Coupler
Engineered for Enclosed, High-Vibration Environments
The CB-SP-6FN-RW quick coupler features a pull-to-connect mechanism and double-sealing valve design, ideal for use in railway hydraulics, mobile industrial systems, and confined environments where secure, vibration-resistant connection is essential.
Its combination of stainless steel construction and Viton sealing ensures reliable performance under thermal, pressure, and contamination stress, with excellent spillage and air control.
Distinctive Performance Features
• Pull-to-Connect Operation
Requires intentional insertion and locking motion, ideal for safe connection in hard-to-reach or mobile systems.
• Dual Seal Mechanism
Redundant sealing ensures leak-free operation even under pressure spikes or temperature variation.
• Integrated Dust Seal
Protects against external contaminants, suitable for outdoor rail environments and industrial yards.
• Excellent Flow and Vibration Stability
Supports flow from 16 to 40 l/min at up to 160 bar (2320 PSI), without disconnection under vibration.
• Flat-Face Valve
Ensures minimal fluid loss and low air inclusion during connect/disconnect.
Material & Sealing Overview
| Component | Material |
| Body / Sleeve / Ends | Stainless steel |
| Valves | Brass |
| Springs & Balls | Stainless steel |
| Seal Material | Viton (others on request) |
This configuration offers excellent chemical resistance, thermal stability, and long-term reliability in field or mobile use.
Technical Summary
| Parameter | Specification |
| Connection Method | Pull-to-connect |
| Seal Type | Dual-sealing + flat-face valve |
| Valve Type | Flat-face with low spillage |
| Working Pressure | 160 bar / 2320 PSI |
| Rated Flow | 16 – 40 l/min |
| Air Inclusion | ≤ 0.10 ml / 0.20 ml |
| Spillage | ≤ 0.01 ml / 0.02 ml |
| Temperature Range | –20°C to +200°C (–4°F to +392°F) |
| Sizes Available | 1/4", 3/8" |
| Standard | ISO 16028 compatible |
| Interchangeable With | Hansen RW Series |
Application Focus
• Railway Hydraulic Systems
Used in maintenance vehicles, switch mechanisms, and braking control lines where thermal range and vibration resistance are critical.
• Industrial Handling Systems
Especially where couplers are placed in enclosed or hard-access areas.
• Mobile Service Equipment
Offers secure and clean fluid transfer with minimal user intervention.
Dimensional Overview
Technical drawing showing CB-SP-6FN-RW female connector and internal valve arrangement.
| Body Size | PARTNO. | Thread | A | B | C | HEX |
| 1/4" | CB-S2L-6MG-F | G1/4 | 53,5 | 30 | 11 | 24 |
| 3/8" | CB-S3L-6MG-F | G3/8 | 67,5 | 35 | 12 | 29 |
Dimensional view of the male connector with flat-face profile and sealing interface
| Body Size | PARTNO. | Thread | D | E | F | HEX |
| 1/4" | CB-P2L-6MG-F | G1/4 | 46 | 12,5 | 11 | 24 |
| 3/8" | CB-P3L-6MG-F | G3/8 | 57 | 17 | 12 | 29 |
Real-world image of CB-SP-6FN-RW male and female connectors, showing external design and finish.
Frequently Asked Questions
Q: What makes the RW version unique within the ISO 16028 family?
A: It uses a pull-to-connect interface and dual-seal system for enhanced sealing and controlled disconnection in environments where vibration is common.
Q: Is this suitable for high-temperature fluid systems?
A: Yes. With Viton seals and brass valves, this model supports up to 200°C (392°F) operation.
Q: Can I connect it with other ISO 16028 couplers?
A: Mechanically yes, though sealing performance may vary if the mating connector is not double-seal compatible.
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160 Bar Hydraulic Quick Couplings Iso Series Iso 16028-Cb-Sp-6fn-Rw Images
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