KF (QF) Bulkhead Clamps (Aluminum) These bulkhead clamps are used for mating KF flanges to bulkheads. The KF (QF) flange is used for through- or foreline vacuum plumbing and for simple HV chamber ports. KF Bulkhead Clamps Feature: - Aluminum clamp construction
- Stainless steel bolts and washers included (10-32 × 5/8")
- Adapts to a baseplate or fixed flange
- Standard KF seal assembly
| Flange OD | Material | Clamp OD | Clamp Thickness | BCD | Number of Bolts | Weight lbs (kg) | PartNo | Price | | | | KF16 | Aluminum | 2.00 | 0.36 | 1.50 | 6 | 1/4 (0.11) | QF16-075-BC | $18.60 | | | | KF25 | Aluminum | 2.38 | 0.39 | 1.89 | 6 | 1/4 (0.11) | QF25-100-BC | $21.80 | | | | KF40 | Aluminum | 2.94 | 0.37 | 2.44 | 6 | 1/4 (0.11) | QF40-150-BC | $25.80 | | | | KF50 | Aluminum | 3.75 | 0.40 | 3.25 | 8 | 1/4 (0.11) | QF50-200-BC | $30.00 | | | |