CB-SP-6FN-DB Stainless Steel Flat-Face Coupler
Built for Demanding Fluid Systems
CB-SP-6FN-DB is a flat-face hydraulic quick coupler manufactured entirely from 316L stainless steel, designed for systems where cleanliness, corrosion resistance, and thermal stability are non-negotiable.
This model is optimized for fluid handling in chemical plants, food and beverage processing, pharmaceutical systems, and other corrosive or hygiene-sensitive environments.
Key Performance Features
• Push-to-Connect Design
Allows quick, tool-free connection in tight or demanding setups.
• High Flow Rates
Designed to support stable transfer in medium-pressure circuits at up to 40 liters per minute.
• Excellent Temperature Resistance
Withstands fluid temperatures from –20°C to +200°C (–4°F to +392°F), making it suitable for both cold-flow and thermal processing applications.
• Corrosion and Chemical Resistance
Constructed from 316L stainless steel, known for superior resistance to aggressive fluids, acids, and CIP (Clean-in-Place) systems.
• Low Spillage + Minimal Air Inclusion
Flat-face valve design helps prevent contamination during disconnection.
• High-Flow Performance
Supports rated flow up to 110 GPM, suitable for fast-fill and high-demand hydraulic applications.
• Sealing Flexibility
Equipped with Viton or EPDM seals depending on fluid compatibility. Other materials (e.g. Kalrez®) available on request.
Technical Overview
| Parameter | Specification |
| Working Pressure | 140 bar / 2030 PSI |
| Rated Flow | Up to 110 GPM |
| Sizes Available | 1/4”, 3/8”, 1/2”, 3/4”, 1” |
For high-purity or aggressive fluid applications, custom seal options such as Kalrez® are available upon request.
Typical Applications
• Chemical Processing Units
Secure fluid transfer under exposure to solvents, acids, or elevated temperatures.
• Pharmaceutical & Biotech Plants
Clean disconnection prevents product contamination; compatible with sterilization cycles.
• Food & Beverage Manufacturing
Non-reactive materials ensure no taste, odor, or color alteration during transfer.
• Heat Transfer Fluids / CIP Systems
Ideal for systems that demand temperature stability and chemical resistance.
Configuration Options
| Option | Description |
| Seal Type | Viton (standard), EPDM, Kalrez® on request |
| Thread Options | BSPP, NPT, Metric |
| Dust Caps | Optional stainless or PVC caps |
| Body Variants | Straight or elbow-end body styles available (on demand) |
Dimensional Overview
Female (Socket)
| Body Size | PARTNO. | Thread | A | B | HEX |
| 1/4" | CB-S2M-6FN-B | 1/4-18 | 1.98 | 1.02 | 0.88 |
| 1/4" | CB-S2M-6FG-B | 1/4-19 | 1.98 | 1.02 | 0.88 |
| 1/2" | CB-S4M-6FN-B | 1/2-14 | 2.52 | 1.59 | 1.38 |
| 1/2" | CB-S4M-6FG-B | 1/2-14 | 2.52 | 1.59 | 1.38 |
| 3/4" | CB-S6M-6FN-B | 3/4-14 | 3.71 | 2.00 | 1.50 |
| 3/4" | CB-S6M-6FG-B | 3/4-14 | 3.71 | 2.00 | 1.50 |
| 1" | CB-S8M-6FN-B | 1-11 | 3.52 | 2.25 | 1.81 |
| 1" | CB-S8M-6FG-B | 1-11 | 3.52 | 2.25 | 1.81 |
Male (Plug)
| Body Size | PARTNO. | Thread | C | D | HEX |
| 1/4" | CB-P2M-6FN-B | 1/4-18 | 1.98 | 1.02 | 0.88 |
| 1/4" | CB-P2M-6FG-B | 1/4-19 | 1.98 | 1.02 | 0.88 |
| 1/2" | CB-P4M-6FN-B | 1/2-14 | 2.52 | 1.59 | 1.38 |
| 1/2" | CB-P4M-6FG-B | 1/2-14 | 2.52 | 1.59 | 1.38 |
| 3/4" | CB-P6M-6FN-B | 3/4-14 | 3.71 | 2.00 | 1.50 |
| 3/4" | CB-P6M-6FG-B | 3/4-14 | 3.71 | 2.00 | 1.50 |
| 1" | CB-P8M-6FN-B | 1-11 | 3.52 | 2.25 | 1.81 |
| 1" | CB-P8M-6FG-B | 1-11 | 3.52 | 2.25 | 1.81 |
Figure: CB-SP-6FN-DB flat-face hydraulic quick coupler set
Shown here in its standard configuration, the CB-SP-6FN-DB coupler features a 316L stainless steel body and precision-machined flat-face interface. The image displays both female (left) and male (right) connectors, highlighting the clean design ideal for corrosive or sanitary environments.
FAQ
Q: Can this be used in food-grade applications?
A: Yes. 316L stainless steel and EPDM/Viton seals are compliant with food-processing equipment standards in most regions.
Q: Is it compatible with aggressive solvents?
A: Yes, this model is specifically engineered for chemical resistance. Confirm compatibility with specific seal materials.
Q: What’s the benefit of flat-face vs poppet valve?
A: Flat-face eliminates nearly all leakage and reduces air ingress, which is critical for contamination-sensitive environments.
Q: Is CB-SP-6FN-DB suitable for high-volume transfer applications?
A: Yes. With a rated flow of up to 110 GPM, it is ideal for high-throughput hydraulic circuits such as industrial machinery or rapid tool change systems.
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