CB-SPS-3FN-W26000 Threaded Hydraulic Quick Couplings – High Pressure Series | Carterberg
Designed for Extreme Applications with Residual Pressure Compatibility
The CB-SPS-3FN-W26000 from Carterberg is a screw-to-connect hydraulic coupling built for demanding hydraulic circuits, especially those requiring resistance to shock loads, residual pressure connection, and reliable metal-to-metal sealing. This high-pressure coupling delivers exceptional performance in construction, mining, and severe industrial environments where strength and durability are non-negotiable.
Key Features
• Threaded sleeve locking using coarse trapezoidal threads for quick, secure connection even under harsh conditions.
• Double shut-off structure prevents fluid loss at disconnection.
• Metal-to-metal sealing ensures leak-free performance in disconnected position.
• Residual pressure capable – allows connection without depressurization.
• Dust caps and plugs included for both male and female ends.
• Zinc-plated steel construction for body, sleeve, and valves with bichromate coating.
• Nitrile seals and stainless steel springs for high chemical and temperature resilience.
Technical Specifications
| Parameter | Value |
| Available Sizes | 3/4", 1" |
| Nominal Diameters (DN) | 14.2 mm, 16.5 mm |
| Thread Type | BSPP (G 3/4, G 1) |
| Max Working Pressure | 9425 psi (650 bar) |
| Operating Temperature | -20°C to +100°C (-4°F to 212°F) |
| Spillage per Disconnection | 5.8 ml (3/4”), 10.9 ml (1”) |
| Flow Rate at ∆p 1 bar | 55–85 L/min |
| Material | Zinc-plated steel (bichromated) |
| Seal Material | Nitrile (NBR) |
Dimensional Overview
Female (Socket)
| Body Size | PARTNO. | Thread | A | B | HEX |
| 3/4" | CB-S6S-3FN-B | 3/4-14 | 97 | 79 | 35 |
| 1" | CB-S8S-3FN-B | 1-11 1/2 | 108 | 89 | 41 |
Male (Plug)
| Body Size | PARTNO. | Thread | C | D | HEX |
| 3/4" | CB-P6S-3FN-B | 3/4-14 | 63 | 29 | 35 |
| 1" | CB-P8S-3FN-B | 1-11 1/2 | 71 | 36 | 41 |
Applications
• Heavy construction machinery (excavators, hydraulic breakers)
• Mobile maintenance trucks
• Off-road equipment
• High-vibration and impact-prone hydraulic circuits
Thread-to-Connect Safety Advantage
The W26000 series coupling’s screw-type locking sleeve with gripping lugs enables easy manual handling even with gloved hands or contaminated surfaces. Its shock-resistant connection profile and sealing under both connected/disconnected conditions make it ideal for unpredictable, high-pressure hydraulic tasks.
Carterberg Commitment
All Carterberg threaded couplings, including the CB-SPS-3FN-W26000, are designed under strict quality systems with reliable interchangeability and long service life in mind. Whether you're replacing worn components or specifying for a new system, Carterberg ensures field-proven performance with every unit.
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