CB-SP-6FN-VEP Flat-Face Threaded Hydraulic Coupling (New Release)
Compact, Secure, Residual-Pressure-Friendly — Now Available as a New Listing
CB-SP-6FN-VEP is Carterberg's newly launched threaded quick coupling designed for demanding hydraulic systems requiring flat-face integrity and safe operation under residual pressure. As part of our latest product lineup, this model is currently categorized under our New Products section and will be migrated to a specific threaded coupler category after launch evaluation.
Key Features at a Glance
• Flat-face design minimizes fluid loss and contamination during connection/disconnection.
• Threaded sleeve locking system ensures secure mating and vibration resistance.
• Residual pressure connection allows safe coupling even under trapped pressure.
• Anti-blowout bonded seal enhances reliability under high impulse and harsh cycles.
• Wide flow and pressure range, suitable for multiple tool and vehicle applications.
Construction & Design Highlights
CB-SP-6FN-VEP features a steel body with high-precision machined threads and chrome-plated components for durability. The female and male halves use a threaded sleeve lock for manual engagement, ensuring tight sealing even under residual pressure.
Internally, the flat-face valve structure offers flush sealing with metal-to-metal contact. This limits fluid spillage and prevents air intrusion when reconnecting, especially critical in construction hydraulics and mobile tool setups.
The built-in anti-blowout bonded seal protects against internal damage from pressure spikes, making it highly reliable in heavy-duty or repetitive connect/disconnect environments.
Technical Specifications
| Parameter | Value |
| Body Sizes Available | 1/2", 5/8", 3/4", 1", 1-1/2" |
| Rated Pressure | 7000 PSI (1/2" to 3/4")6000 PSI (1")5000 PSI (1-1/2") |
| Rated Flow | 12 – 152 GPM |
| Temperature Range | -20°C to +120°C |
| Standard Seal Material | NBR (Nitrile Rubber) |
| Valve Type | Flat-face, flush-valving |
| Locking System | Threaded sleeve, manual connect |
| Residual Pressure Capability | Yes |
Dimensional Overview
Female (Socket)
| PART NO | LS | D | HEX1 | HEX2 | A | T |
| CB-S4S-6FN-VEP | 103.5 | Φ49 | S36 六角 | S46 六角 | 16.5 | G1/2 NPT1/2 |
| CB-S6S-6FN-VEP | 114 | Φ53.7 | S41 六角 | S50 六角 | 20 | G3/4 NPT3/4 |
| CB-S8S-6FN-VEP | 133.5 | Φ58.8 | S46 六角 | S55 六角 | 21 | G1 NPT1 |
| CB-S10S-6FN-VEP | 145.2 | Φ68.7 | S55 六角 | S65 六角 | 21 | G1-1/4 NPT1-1/4 |
| CB-S12S-6FN-VEP | 187.5 | Φ92 | S65 六角 | S85 六角 | 21 | G1-1/2 NPT1-1/2 |
Male (Plug)
| PART NO | LS | C | d | E | HEX2 | A | T |
| CB-P4S-6FN-VEP | 95 | 18.8 | 24.54 | M40*3 | S36 六角 | 16.5 | G1/2 NPT1/2 |
| CB-P6S-6FN-VEP | 98.8 | 19.5 | 27.04 | M45*3 | S36 六角 | 20 | G3/4 NPT3/4 |
| CB-P8S-6FN-VEP | 113.9 | 24 | 29.95 | M50*3 | S46 六角 | 21 | G1 NPT1 |
| CB-P10S-6FN-VEP | 123.5 | 24.8 | 36.05 | M58*3 | S55 六角 | 21 | G1-1/4 NPT1-1/4 |
| CB-P16S-6FN-VEP | 150 | 31.5 | 57 | Tr80*4 | S65 六角 | 21 | G1-1/2 NPT1-1/2 |
Where It Works Best
CB-SP-6FN-VEP is ideal for:
• Portable construction equipment: Excavators, trenchers, and skid steers operating under high pulsation loads.
• Hydraulic tools: Where connection/disconnection must occur under load or residual pressure.
• Mobile hydraulic systems in vehicles: Maintenance trucks, cranes, and off-road platforms requiring clean, reliable couplings.
Why It Deserves Your Attention
Unlike standard ball-type threaded couplers, CB-SP-6FN-VEP combines the robustness of a screw-type locking system with the cleanliness and low-loss characteristics of flat-face valves. It's engineered to operate under residual pressure — a capability often critical in field maintenance or interrupted workflows.
Its anti-blowout sealing and flush valve design make it especially reliable in systems subjected to pressure cycling, contamination risk, or severe hydraulic shocks.
Classification Note
Currently published as a New Product, CB-SP-6FN-VEP will be reassigned under the Carterberg Thread-to-Connect Flat-Face Coupler category following product launch assessment and market feedback.
Related Resources
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