All-metal gate valve

Product catalog summary

Overview: The document provides detailed specifications and options for the Series 48 all-metal gate valves by VAT Vakuumventile AG, designed for extreme ultra-high vacuum (UHV) and aggressive media environments. These valves are bakeable, radiation-resistant, and maintenance-free for up to 20,000 cycles.

Specifications:

Temperature and Pressure: Bakeable to 300°C, operational under UHV to 2 bar pressure, and capable of opening under a differential pressure of up to 1 bar.
Materials: Valve body and mechanism made from AISI 316L stainless steel, with metal seals for the gate and bonnet.
Actuators: Available in manual and pneumatic options, with pneumatic actuators being double-acting and equipped with position indicators.
Leak Rate: Less than 1 x 10^-10 mbar l/s for body and valve seat.

Actuator Options:

Pneumatic actuators are available in compact and extended versions, bakeable to 200°C, with options for higher radiation resistance.
Manual actuators are bakeable to 140°C, with an option for 200°C.

Valve Options:

Customizable flanges and larger diameters available upon request.
Antimagnetic versions and valves with windows (sapphire material) are available.

Accessories:

Flexible bake-out jackets and seal kits are available for installation and maintenance.
Commercial controllers are recommended for bake-out processes.

Technical Data:

Pressure range: UHV to 2 bar (abs).
Temperature limits: Valve body up to 300°C, pneumatic actuator up to 200°C, manual actuator up to 140°C (optionally 200°C).
Cycle life: Up to 20,000 cycles for DN 16-200, and 5,000 cycles for DN 250-320.

Dimensions and Ordering: Detailed dimensions and ordering numbers are provided for various DN sizes, with specific configurations for actuators and valve types.

Catalog excerpts

All-metal gate valve For extreme UHV and/or aggressive media Bakeable to 300°C in open and closed position Radiation resistant Maintenance-free up to 20 000 cycles Opening possible up to 1 bar differential pressure Body material stainless steel Manual actuator Ordering numbers inch with position indicator 80°C: 48 . . . - . E08 with position indicator 200°C: 48 . . . - . E05 Pneumatic actuator double acting with position indicator 80°C with solenoid Ordering numbers (specify control voltage) compact actuator valve 200°C CF-F extended actuator valve 300°C CF-F actuator modules see page 82 with position indicator 80°C, without solenoid: 48 . . . - . E72 (compact actuator) 48 . . . - . E24 (extended actuator) further versions: see pages 82 and 83 Bake-out jacket For bake-out we recommend commercial controllers with settable heating rate and temperature limiting device. The bake-out jacket is without thermocouples and thermostats. Details see page 216. Ordering number on request.

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Sealing materials Gate: Bonnet: metal Feedthrough Bellows 1 valve gate 2 counter plate 3 guide plate 4 spring stop 5 leaf spring 6 support 7 VATRING valve seat side VATRING configuration (see glossary) Sealing surfaces are only elastically deformed Locked in closed position Technical data Pressure range Differential pressure on the gate Differential pressure at opening - DN 16 - 40 - DN 63 - 250 - DN 320 ≤ 1 bar ≤ 500 mbar (1 bar with reduced cycle life) ≤ 500 mbar with reduced cycle life Cycles until first service - DN 16 - 200 / 250 - 320 Temperature - Valve body - Manual actuator - Pneumatic...

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All-metal gate valve Actuators – modular selection 1 Body, valve mechanism, bellows 2 Pneumatic actuator compact 3 Pneumatic actuator extended 5 Special pneumatic actuator for hot zone : 10 Gy, bakeable to 80°C 8 position indicator 80°C position indicator 200°C position indicator 80°C Maximum values: depending on operating conditions and sealing materials - Fittings for installation of the valve: series 33 Consisting of seals for gate (VATRING) and bonnet Ordering No.: see operating manual or price list - Flexible bake-out jacket: see page 216 Technical data closing or opening time compressed...

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- Pneumatic actuator compact or extended 10 6 Gy, bakeable to 140°C 1) Maximum values: depending on operating conditions and sealing materials - Accessory for pneumatic actuator for faster closing - Pneumatic actuator for hot zone: radiation resistant to 108 Gy, bakeable to 80°C - Manual actuator bakeable to 200°C 1) - Solenoid for impulse actuation: actual valve position is maintained at power failure - Solenoid for 12, 48 V DC 24, 48, 100, 115, 200, 230 V 50 Hz 24, 100, 115, 200, 230 V 60 Hz - Solenoid radiation resistant to 10 6 Gy (standard 10 4 Gy) - Position indicator for pneumatic actuator...

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All-metal gate valve Main dimensions Valve with manual actuator DN 63 - 160 (2½" - 6") Valve with manual actuator DN 16 (⅝") DN 40 (1½") Valve with manual actuator DN 200 (8") a valve seat side required for dismantling d leak detection hole j bake-out area Flange dimensions see page 85 DN

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Flange dimensions CF-F DN 16, 40, 200 (⅝", 1½", 8") valve seat side

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All-metal gate valve Main dimensions Valve with pneumatic actuator DN 16 - 40 (⅝" - 1½") a valve seat side emergency operation Valve with pneumatic actuator DN 63 - 160 (2½" - 6") mechanical position indication required for dismantling Valve with pneumatic actuator DN 200 - 320 (8" - 12") compressed air connection electrical connection leak detection hole j bake-out area L1 and R for extended actuator / flange dimensions see page 87 DN K L L1 M N O O1 P Q R S T U U1 V mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch mm inch...

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