Each Series has 5 variations of design; each for a specific requirement.
Housing are made of Aluminum, except “Hi Temp” series which are all SST
All linear feedthrough comes standard with a scale except “Precision Series” is equipped with a micrometer Heavy Duty Series can go up to 110 lb of axial force
Standard Series: VFL — S
| Standard | Hi Temp | Push/Pull | Precision | Hv Duty | |
| Bake temp(C ) | 200 | 315 | 200 | 200 | 200 |
| Op. temp (C ) | -20 to 150 | -20 to 250 | -20 to 150 | -20 to 150 | -20 to 150 |
| dial resol | 0.002″ | 0.002″ | .0001″ | ||
| linear resol | 0.05″ | 0.05″ | .05″ | 0.05″ | |
| M. Axial lb | 10 lb | 10 lb | 25 | 10 lb | 50 |
| M. Lateral lb | 5 lb | 5 lb | 20 | 5 lb | 20 |
Pneumatic style requires a male 1/8FPT fitting
Linear Series
Type |
PN# |
Actuator: |
| Standard | VFL-S | Manual |
| Hi Temp | VFL-HT | Pneumatic |
| Push/pull | VFL-PP | Electric motor |
| Precision | VFL-P | Magnetic Coupled |
| Heavy duty | VFL-HD |
Standard Series: VFL — S__
Standard High Temp: VFL-HT
High Temp. Series has the same dimension as the Standard (VFL-SS) except body and housing are made of Stainless Steel
Standard Push/Pull: VFL-PP
Standard Precision: VFL-P
Mini Heavy duty: VFL-HD
Specifications:
| Sealing Mechanism | Welded Bellows | |
| Operating Temperature | -20 0C to 150 0C | |
| Material Exposed to Vacuum | -Stainless Steel | |
| Maximum Axial Load | 50 lbs (22.7Kg) concentric load | |
| Bakeout Temperature | 200 0C (Maxzimum) | |
| Maximum Lateral Load | 20 lbs (9.1Kg) @3″ extension | |
| Thread Pitch | 1.0″ (25.4 mm) per 10 revolutions |
Pneumatic Option
Connection port: 1/8 NPT
4-Way solenoid: Purchase separately 
Magnetic Feedthrough
Most economical rotary feedthrough on the market. Magnetically coupled with high torque. Commonly used when fast reciprocating action is not require.
Specifications
| Actuation | manual / pneumatic |
| Scale increment | -5° |
| Resolution | -1° |
| Bake temperature | 150° C |
| Torque | 3.5 in-lb |
| Shaft diameter | 6 mm with tap hole |
| Vacuum range | 1 x 10-11 Tor |
| Flange: | CF 1.33 |