The QSB quarter swing valves are compact, quick acting, high conductance isolation valves. The QSB valves have a polished, stainless steel, ISO flanged body with fluoroelastomer ‘O’ ring sealed valve plate and shaft. The valve plate ‘O’ ring groove is vented to help maintain a stable high vacuum. The valve shaft ‘O’ rings and bearings are lubricated with Fomblin® grease to prevent gas bursts from behind the shaft seals.
This valve is supplied with a Co-Seal.
Technical data | |
Valve plate material | AISI 304 stainless steel |
Operating pressure range | 10-9 - 3000 mbar |
8 x 10-10 - 2250 Torr | |
Max pressure differential | 1000 mbar / 750 Torr |
Operating temp range | 5 - 40 °C |
Max baking temp | 200 °C (without actuator) |
Leak rate | < 10-9 mbar ls-1 |
8 x 10-10 Torr ls-1 | |
Pneumatic valves only: | |
Reliability (MTTF) | >1.5 x 105 cycles |
Pneumatic connectors | 1/8 inch BSP, for 6mm OD tube |
Number of connectors | |
QSB63, QSB100, QSB160 | 2 |
Reed switch rating | |
Max voltage | 30V |
Max current | 500mA |
Max Power | 6W |
Reed switch connectors | 3m flying leads |
Microswitch rating | 5A at 48V |
Microswitch connectors | |
QSB63, QSB100, QSB160 | Solder tags |
Flange Size | ISO63 up to ISO250 |
Conductance * | 420 ls-1 |
QSB160 | 2700 ls-1 |
Recommended pneumatic pressure~ (bar) | |
QSB63, QSB100, QSB160 | 2.8 to 4.2 |
* Conductance of equivalent tube length
~ Pneumatic operation