CB-SPB-1F ISO 7241-B Hydraulic Quick Coupling | Carterberg
The CB-SPB-1F is Carterberg’s cost-efficient and space-saving
solution in our ISO 7241-B hydraulic coupling lineup. It’s engineered for equipment designers and system operators who
require reliable connection in compact or lower-pressure systems,
without compromising interchangeability or sealing performance.
This model integrates the same trusted ball-latch mechanism and
poppet valve design as our higher-tier models, but with economical
packaging and simplified configuration, making it ideal for
widespread industrial use.
Key Features
• Compliant with ISO 7241-1 Series B dimensions
• Compact and lightweight body – ideal for tight installation
spaces
• Ball-lock design ensures quick, tool-free coupling
• Self-sealing poppet valves minimize fluid loss
• Suitable for low-to-medium pressure systems
• Available in carbon steel, brass, or stainless options
• Cost-effective without sacrificing compatibility
Material & Sealing Options
Designed with affordability and compatibility in mind, CB-SPB-1F
supports multiple materials (steel, brass, stainless) and seal
options depending on system needs:
| Seal Material | Max Temperature |
| Buna-N | -40°C to +121°C |
| Neoprene | -54°C to +100°C |
| EPDM | -54°C to +149°C |
| FKM | -29°C to +204°C |
Ideal for water lines, compressed air, light hydraulic oil systems, and more.
Technical Specifications
| Size (Inches) | Rated Pressure (psi) | Flow Rate (gpm) |
1/8" | 3000 | 0.8 |
| 1/4" | 2700 | 3 |
| 3/8" | 2200 | 6 |
| 1/2" | 2250 | 12 |
| 3/4" | 2000 | 26 |
| 1" | 1500 | 50 |
| 1-1/4" | 1200 | 76 |
| 1-1/2" | 1500 | 99 |
| 2" | 700 | 200 |
• Mounting Types: Threaded (BSPP / NPT / SAE)
•Working Temperature: Based on selected seal
Product Visual & Dimensions
This coupling set features plug + socket, designed for simple
installation and cost-aware system layouts.
• Pairing plug and socket sets with varied threads
• Threaded plug showing ball-lock structure
| Body Size | PARTNO. | Thread | C | D | E | HEX |
| 1/8" | CB-P1B-1FG | 1/8-27 | 1.26 | 0.65 | 0.44 | 0.56 |
| 1/8" | CB-P1B-1FG | 1/8-27 | 1.26 | 0.65 | 0.44 | 0.56 |
| 1/4" | CB-P2B-1FG | 1/4-19 | 1.52 | 0.87 | 0.56 | 0.75 |
| 1/4" | CB-P2B-1FN | 1/4-18 | 1.52 | 0.87 | 0.56 | 0.75 |
| 3/8" | CB-P3B-1FG | 3/8-19 | 1.76 | 1.01 | 0.61 | 0.88 |
| 3/8" | CB-P3B-1FN | 3/8-18 | 1.76 | 1.01 | 0.61 | 0.88 |
| 1/2" | CB-P4B-1FG | 1/2-14 | 2.03 | 1.30 | 0.76 | 1.13 |
| 1/2" | CB-P4B-1FN | 1/2-14 | 2.03 | 1.30 | 0.76 | 1.13 |
| 3/4" | CB-P6B-1FG | 3/4-14 | 2.36 | 1.52 | 0.71 | 1.31 |
| 3/4" | CB-P6B-1FN | 3/4-14 | 2.36 | 1.52 | 0.71 | 1.31 |
| 1" | CB-P8B-1FG | 1-11 | 2.85 | 1.88 | 0.97 | 1.63 |
| 1" | CB-P8B-1FN | 1-11 | 2.85 | 1.88 | 0.97 | 1.63 |
• Disconnected socket showing poppet valve
| Body Size | PARTNO. | Thread | A | B | Across Flats |
| 1/8" | CB-S1S-1FG | 1/8-27 | 1.91 | 0.98 | 0.56 |
| 1/8" | CB-S1S-1FN | 1/8-27 | 1.91 | 0.98 | 0.56 |
| 1/4" | CB-S2S-1FG | 1/4-19 | 2.26 | 1.17 | 0.75 |
| 1/4" | CB-S2S-1FN | 1/4-18 | 2.26 | 1.17 | 0.75 |
| 3/8" | CB-S3S-1FG | 3/8-19 | 2.56 | 1.42 | 0.88 |
| 3/8" | CB-S3S-1FN | 3/8-18 | 2.56 | 1.42 | 0.88 |
| 1/2" | CB-S4S-1FG | 1/2-14 | 2.96 | 1.86 | 1.13 |
| 1/2" | CB-S4S-1FN | 1/2-14 | 2.96 | 1.86 | 1.13 |
| 3/4" | CB-S6S-1FG | 3/4-14 | 3.48 | 2.22 | 1.31 |
| 3/4" | CB-S6S-1FN | 3/4-14 | 3.48 | 2.22 | 1.31 |
| 1" | CB-S8S-1FG | 1-11 | 4.13 | 2.61 | 1.75 |
| 1" | CB-S8S-1FN | 1-11 | 4.13 | 2.61 | 1.75 |
Application Scenarios
The CB-SPB-1F is ideal for medium-duty and value-conscious
hydraulic systems:
• Hydraulic systems on municipal or rental equipment
• Water or air lines in utility carts, HVAC circuits
• Compressed air or non-critical fluid delivery lines
• Light agricultural implements or sprayers
• OEM systems prioritizing budget and compactness
Brand Interchange Compatibility
The CB-SPB-1F fits all ISO 7241-B standard dimensions and replaces:
• Parker 60 Series
• Faster HNV Series
• Aeroquip FD45
• Hansen HK Series
Why Choose CB-SPB-1F?
| Feature | Value |
| Compact size | Easy fit into restricted installations |
| Reliable ball-lock design | Smooth connect/disconnect cycles |
| Broad compatibility | Interchangeable with leading brands |
| Budget-conscious choice | Ideal for scalable, high-volume systems |
When to Choose the “B” Version?
If your hydraulic line does not operate under extreme pressure or
environmental stress, and you need a compact, affordable, and
interchangeable quick coupling, the CB-SPB-1F is the optimal fit.
It's widely used in air-powered tools, mobile fluid carts, and
utility vehicles where cost and footprint matter most.
Ready to Discuss System Fit?
Our team can advise on seal selection, mounting thread, and
pressure compatibility.
Please contact
us
