VAvat D1111-31-DN400~1250 High Vacuum Large Pendulum Valve
Key specifications
Description
Suitable for applications requiring compact design space, especially for large-scale coating and LCD manufacturing systems. Pneumatic actuator (with normally closed spring); three-position pneumatic actuator (with normally closed spring); double-acting actuator Material: Aluminum alloy (materials optional). Sealing: O-ring seal. Opening diameters: DN400~1250.
Technical data
| Series | VAvat |
|---|---|
| Opening diameter / bore | DN400~1250 |
| Main material | Aluminum alloy (materials optional) |
| Driver | pneumatic normally closed / 3-position pneumatic, normally closed / pneumatic double-acting |
| Flange type | ISO-F · JIS B |
| Sealing method | O-ring seal |
| Leakage rate | 1 × 10⁻⁹ mbar·L/s |
| Pressure range | 1 × 10⁻⁸ mbar – 1.2 bar |
| Differential pressure on the valve plate | ≤ 1.2 bar |
| Opening differential pressure | ≤ 30 mbar (22.502 Torr) |
| Recommended maintenance cycle | 100,000 cycles (unheated, clean conditions) |
| Operating temperature | Valve body ≤ 120 °C; drive components ≤ 80 °C; position indicator ≤ 80 °C |
| Opening / closing time | ≤ 5 s (depends on compensation pressure of the compressed air) |
| Material of components | Valve body / bonnet / plate: aluminum alloy |
| Mounting position | Any orientation |
| Compressed air range | 0.55 MPa – 0.7 MPa |
| Position feedback | DC ≤ 24 V, DC ≤ 100 mA |
| Example model numbers | VAvat-D1111-31-DN400~1250 (pneumatic normally closed) · VAvat-D5111-31-DN400~1250 (3-position pneumatic, normally closed) · VAvat-D1113-31-DN400~1250 (pneumatic double-acting) |
FAQ
What flange or port does the D1111-31-DN400~1250 use?
D1111-31-DN400~1250 connections: Flange type ISO-F · JIS B.
How do I get a price and lead time for the D1111-31-DN400~1250?
Send the model and quantity through the quote form on this page, or email vacuum@xiamenbest.com. We reply with price and lead time within 24 hours, and ship worldwide from Xiamen, China.
Need a confirmed configuration?
Share your application, target vacuum and voltage. We will match the pump or part and return a formal quote.
We build an equivalent — same duty, far lower cost
Taixing is a vacuum equipment manufacturer with its own 20,000 m2 plant and sixteen years in the industry. We build Products to the same duty as this imported unit, at factory-direct cost. Send your process conditions (gas, pressure range, flow) and we will match a model and quote.
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