Spring-to-Close / Normally Closed Vacuum Valves
from Edwards Vacuum
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. [See More]
- Fail-Safe: Spring-to-Close
- Port OD: ? to 4.02
- Type: Butterfly
- Vacuum / Pressure Range: (UHV, < 10-8 torr); Elevated or positive pressures (>> 760 torr)
from Nor-Cal Products, Inc. - The Vacuum Experts
Genesis valves offer million cycle reliability combined with a highly configurable valve body. Aluminum modular valves have a small footprint, allowing them to be placed where they are needed. Available with an integrated low cost soft-start option. [See More]
- Fail-Safe: Spring-to-Close
- Port OD: 0.7500 to 2
- Type: Angle; Poppet Valve
- ISO Port Flange Size: NW 16; NW 25; NW 40 ; NW 50
from VACUUBRAND, Inc.
These straight-through valves with electromagnetic (solenoid) drive are used for operating cycles with short intervals and, therefore, are often used as vacuum control valves. The straightforward design provides a valve with low leakage rate. The valves in VV "C" versions (e.g., VV-B 6C) are made of... [See More]
- Fail-Safe: Spring-to-Close
- Port OD: 0.9843
- Type: Inline; Straight Through
- ISO Port Flange Size: NW 25
from Edwards Vacuum
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. [See More]
- Fail-Safe: Spring-to-Close
- Port OD: ? to 2.48
- Type: Butterfly
- Vacuum / Pressure Range: (UHV, < 10-8 torr); Elevated or positive pressures (>> 760 torr)
from Nor-Cal Products, Inc. - The Vacuum Experts
The N Series Valves feature high cycle life and a small footprint in right-angle and in-line body styles. Constructed of Stainless Steel with NW16, 25, 40 and 50 flanges. All N-series valves are pneumatically actuated and are available with optional air solenoids and three types of open/close... [See More]
- Fail-Safe: Spring-to-Close
- Port OD: 0.7500 to 1.5
- Type: Angle; Poppet Valve
- ISO Port Flange Size: NW 16; NW 25; NW 40 ; NW 50
from Edwards Vacuum
Soft-start, pneumatically operated, valves with interchangeable orifices for the controlled pumpdown of processes where turbulent flow can cause problems with particulate contamination. Slave and master valve combination allows slow initial pumping to minimise disturbance. Both slave and master... [See More]
- Fail-Safe: Spring-to-Close
- ISO Port Flange Size: NW 16
- Type: Inline
- Vacuum / Pressure Range: (UHV, < 10-8 torr); Elevated or positive pressures (>> 760 torr)
from Nor-Cal Products, Inc. - The Vacuum Experts
The N Series Valves feature high cycle life and a small footprint in right-angle and in-line body styles. Constructed of Stainless Steel with NW16, 25, 40 and 50 flanges. All N-series valves are pneumatically actuated and are available with optional air solenoids and three types of open/close... [See More]
- Fail-Safe: Spring-to-Close
- Port OD: 0.7500 to 1.5
- Type: Angle; Poppet Valve
- ISO Port Flange Size: NW 16; NW 25; NW 40 ; NW 50
from Edwards Vacuum
Soft-start, pneumatically operated, valves with interchangeable orifices for the controlled pumpdown of processes where turbulent flow can cause problems with particulate contamination. [See More]
- Fail-Safe: Spring-to-Close
- ISO Port Flange Size: NW 25
- Type: Inline
- Vacuum / Pressure Range: (UHV, < 10-8 torr); Elevated or positive pressures (>> 760 torr)
from Nor-Cal Products, Inc. - The Vacuum Experts
Nor-Cal copper sealed pneumatic valves have a vacuum range of 1x10-10 Torr. Nor-Cal poppet valves are fully opening for increased conductance. Valve bodies are electropolished for better corrosion resistance and optimal conductance. [See More]
- Fail-Safe: Spring-to-Close
- Port OD: 0.3750 to 4
- Type: Angle; Poppet Valve
- Vacuum / Pressure Range: (UHV, < 10-8 torr)
from Nor-Cal Products, Inc. - The Vacuum Experts
Nor-Cal copper sealed manual valves have a vacuum range of 1x10-10 Torr. Nor-Cal poppet valves are fully opening for increased conductance. Valve bodies are electropolished for better corrosion resistance and optimal conductance. [See More]
- Fail-Safe: Spring-to-Close
- Port OD: 0.7500 to 3
- Type: Angle; Poppet Valve
- Vacuum / Pressure Range: (UHV, < 10-8 torr)
from Nor-Cal Products, Inc. - The Vacuum Experts
Nor-Cal copper sealed pneumatic valves have a vacuum range of 1x10-10 Torr. Nor-Cal poppet valves are fully opening for increased conductance. Valve bodies are electropolished for better corrosion resistance and optimal conductance. [See More]
- Fail-Safe: Spring-to-Close
- Port OD: 0.3750 to 4
- Type: Angle; Poppet Valve
- Vacuum / Pressure Range: (UHV, < 10-8 torr)
from Nor-Cal Products, Inc. - The Vacuum Experts
Nor-Cal copper sealed pneumatic valves have a vacuum range of 1x10-10 Torr. Nor-Cal poppet valves are fully opening for increased conductance. Valve bodies are electropolished for better corrosion resistance and optimal conductance. [See More]
- Fail-Safe: Spring-to-Close
- Port OD: 0.7500 to 1.5
- Type: Angle; Poppet Valve
- Vacuum / Pressure Range: (UHV, < 10-8 torr)
from Nor-Cal Products, Inc. - The Vacuum Experts
Nor-Cal copper sealed pneumatic valves have a vacuum range of 1x10-10 Torr. Nor-Cal poppet valves are fully opening for increased conductance. Valve bodies are electropolished for better corrosion resistance and optimal conductance. [See More]
- Fail-Safe: Spring-to-Close
- Port OD: 0.3750 to 4
- Type: Angle; Poppet Valve
- Vacuum / Pressure Range: (UHV, < 10-8 torr)
from Nor-Cal Products, Inc. - The Vacuum Experts
Nor-Cal elastomer sealed pneumatic valves have a vacuum range of 1x10-9 Torr. Nor-Cal poppet valves are fully opening for increased conductance. Valve bodies are electropolished for better corrosion resistance. Viton seals are standard, other elastomers are available upon request. [See More]
- Fail-Safe: Spring-to-Close
- Port OD: 0.7500 to 3
- Type: Angle; Poppet Valve
- Vacuum / Pressure Range: (HV, < 10-3, >10-8 torr)