| Specifications |
| Material |
| Body, Carriage & Gate |
300 Series ss |
| Bellows |
AM-350 ss |
| Air Cylinder |
Teflon® coated Aluminium |
| Bolts |
300 Series ss |
| Gaskets |
| Bonnet UHV / HV |
OFE Copper / Viton® elastomer |
| Gate |
Viton® or optional Kalrez® 4079 elastomer |
| Piston |
Viton® elastomer |
| Electropneumatic Actuator |
| Air Pressure |
70 to 100 psig |
| Air Control Valve |
410 Series Humphrey solenoid valve |
| Solenoid Power |
120 VAC, 50/60Hz, 4W |
| Power Loss |
Valve closes |
| Position Indicators |
Mechanical, vernier adjustable, hinged-roller type micro swithes suitable for 5A, 120/240 VAC |
| Vacuum |
| Range |
1x10-11 Torr |
| Leak Test |
2x10-10 cc/sec of He |
| Temperature Range |
| Bakeability under vacuum in Open-Closed positions, with the following Bonnet-Gate seal combinations. |
| Series |
Open |
Closed |
Bonnet |
Gate |
| UHV |
200°C |
150°C |
Copper |
Viton® |
| UHV |
250°C |
200°C |
Copper |
Kalrez® |
| HV |
150°C |
150°C |
Viton® |
Viton® |
|
Sealing
Valves will seal against 15 psi differential atmospheric pressure in either direction.
Orientation
Valves can be installed in either a vertical or horizontal orientation.
Leak Tightness
Each valve is tested using a helium mass spectrometer leak detector calibrated for a minimum sensitivity of 2x10-10 Std. Atm. cc/sec of He. Internal welds are inspected for pits, cracks, and other irregularities which may cause virtual leaks.
Maintenance
Carriage and gate mechanism may be removed through the bonnet flange for seal replacement, cleaning or retrofitting without removing the valve body from the system.
Manual Actuation
Actuators are constructed with non-rising Acme threads for smooth and quick operation. Visual open position indicators are standard on all manual valves.
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