KF/LF/CF Manual Vacuum Gate Valve

Name: Ultra-high Vacuum Gate Valves

The design of this series' structure is reasonable, and the appearance is excellent. Besides, they have many advantages, such as stability, small size, durability, great sealing, long service life and so on. As a result, they can apply to the ultra-high vacuum equipment.

Features:
1. Adopt stainless steel bellows and viton o- ring sealing, no lube.
2. The inner of valves' body is welded by stainless steel and the leak rate is low.
3. Valve bodies design in rib structure, with small sizes, light quality and excellent appearance.
4. Adopt double-guide-rail structure, smooth movement; Monolithic construction inside the valve and well-distributed holding power

Application scope:
1× 10-7PA~1.2× 105PA
Differential pressure before open valve plates:
≤ 3× 103PA Any direction
Leak rate of valves' body and base:
< 1.3× 10-7PA@L@s-1
Cycles until first service: 10, 000Times
Baking Temperate of valve bodies:
Open≤ 200º C; Close≤ 150º C
Position of installation: Any
Power supply:
- pneumatic valves: AC 220V 50Hz, 6W or DC 24V, 3W
- motor-driven valves:
DN 63~250: AC 220V 50Hz, 25W or AC 380V 50 Hz, 25W
DN 320~400 AC: 220V 50Hz, 40W or AC 380V 50 Hz, 40W
(Special specification can be customized)
Compressed air(only supply to pneumatic valves)
- DN 63~200: 0.4~0.7MPa
- DN 250~400: 0.5~0.7MPa
Speed of closing and opening:
- pneumatic valves: DN 63~250 ≤ 6s; DN 320~400 ≤ 10s
- motor-driven valves: DN 63~250 ≤ 50s; DN 320~400 ≤ 70s

Indications of valves' position:
- manual valves: With indication of start and stop's positions (mechanical type)
- pneumatic valves: With indication of start and stop's positions (magnetic switch)
- motor-driven valves: With indication of start and stop's positions (micro switch)