Key Features
- Moderate Conductance: Inline valves offer moderate conductance due to the gas flow taking two 90-degree turns as it passes through the valve.
- Ideal for Offset Connections: Designed for applications where a direct, line-of-sight connection between two offset ports is required.
- Superior Sealing Technology: These valves are equipped with fluorocarbon o-ring seat seals, bellows-sealed shafts, and bonnet seals for enhanced sealing performance.
- Low Leak Rate: The valves maintain a low leak rate across the seat, measured at 2×10⁻⁹ mbar L/s, ensuring optimal performance in sensitive systems.
- Pressure Capabilities:
- Maximum pressure: Atmospheric pressure
- Minimum pressure: 1×10⁻⁹ Torr
- Convenient Maintenance: Standard repairs can be performed without needing to remove the valve body from the system, reducing downtime.
- Actuation Options: Available in both manual and pneumatic actuation for versatile use.
Ordering Table
| Drawing | Flange Size | Max Conductance (L/Sec.) | Dim A (in.) | Dim B (in.) | Dim C (in.) | Dim D (in.) | Dim E (in.) | Part Number |
| KF10 | - | 1.65 | 0.94 | 1.5 | 4.44 | 2.25 | SL0037MVQF |
|
| KF16 | 4 | 2.15 | 1.12 | 1.87 | 5.19 | 2.25 | SL0075MVQF |
|
| KF25 | 13 | 2.03 | 1.37 | 2.25 | 5.69 | 2.25 | SL0100MVQF |
|
| KF40 | 42 | 2.4 | 1.88 | 3.12 | 8.02 | 3 | SL0150MVQF |
|
| KF50 | 72 | 3.4 | 2.62 | 4.12 | 10.73 | 3.5 | SL0200MVQF |
|
| ISO63 | - | 3.25 | 3.12 | 4.93 | 12.7 | 4 | SL0250MVIK |
Accessories Table
| Type | Description | Part Number |
| Clamp | CLAMP, ALUMINUM, QF16, CAST 1/2" & 3/4" | QF16-075-C |
| Centering Ring | CENTERING RING, SS, QF16, FKM O-RING, 3/4" | QF16-075-SRV |
| Clamp | CLAMP, ALUMINUM, QF40, CAST 1-1/2" | QF40-150-C |
| Fluorocarbon Centering Ring | CENTERING RING, SS, QF40, FKM | QF40-150-SRV |
| Clamp | CLAMP, ALUMINUM, QF50, CAST 2" | QF50-200-C |
| Centering Ring | CENTERING RING, SS, QF50, FKM | QF50-200-SRV |
| Clamp | CLAMP, ALUMINUM, QF25, CAST 1" | QF25-100-C |
| Centering Ring | CENTERING RING, SS, QF25, FKM | QF25-100-SRV |
| Centering Ring | CENTERING RING, SS, QF10, FKM | QF10-050-SRV |
| Centering Ring (SS/AL with Fluorocarbon O-Ring) | CENTERING RING, QF63, SS INNER, AL OUTER, FKM O-RING | QF63-SAVR |
| Centering Ring (SS/AL with Fluorocarbon O-Ring) | CENTERING RING, QF80, SS INNER, AL OUTER, FKM O-RING | QF80-SAVR |
| Double Clamps (AL) | CLAMP, DOUBLE CLAW, ALUMINUM, FOR 63-100 ISO FLANGES | QF-SDC-AL1 |
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