Reliable Isolation at All Vacuum Levels

The 19.2 Large Gate Valve series is designed for reliable isolation in applications where extra-large dimensions are required such as space simulation applications. The series are designed for up to DN 1250 mm (50"), but are available in larger sizes upon request. The Series 19.2 is configured for ultra-high vacuum up to 1 × 10-10.

All operate with a damped opening and closing mechanism based on VATLOCK technology which provides reliable sealing without any friction at the gate seal. The reduced friction increases seal life and also reduces the force required to move the gate, an important factor with larger diameters. The VATLOCK mechanism also prevents valve failure thanks to the mechanical lock-in at the closed position.
From DN 900 mm (36") and larger all series are designed with a split body for convenient maintenance. To reduce the footprint in larger DN sizes the 19.1 / 19.2 series are provide in a compact design with the double acting pneumatic actuator located to the side of the gate housing.

All of the valves in the Large Gate Valve series address the standard requirements of reliability, durability and serviceability with a special focus on high uptime and low cost of ownership.

Already operating in hundreds of applications, the 19.2 Large Gate Valve series have proven their outstanding reliability. They have become the standard for large vacuum isolation requirement in sizes from DN 400 – 1250 mm (16" – 50").

19.2:  UHV

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Open

The 19.2 Large Gate Valve series can be tailored in a number of ways, such as pneumatic actuation, flange connections, ports for roughing (by-pass), venting or gauges, heat shields and many more.


Key features of the 19.2 Large Gate Valve

Features:

  • Reliable, proven design
  • VATLOCK technology
  • Robust stainless steel body
  • Compact footprint

Benefits:

  • Reliable performance
  • Limited maintenance
  • Low cost of ownership
Technical data
Sizes   DN 400 (16"), DN 500 (20"), DN 630 (25"), DN 800 (32"), DN 900 (36"), DN 1000 (40"), DN 1250 (50"), DN 1600 (63"), DN 2000 (78")
Actuator Pneumatic Double acting
Body Material   Aluminium
Feedthrough   Bellows
Standard Flanges   ISO-F
Leak Rate Valve Body < 5 × 10-10 mbar ls-1
  Valve Seat < 1 × 10-9 mbar ls-1
Pressure Range   1 × 10-10 mbar to 1 bar (abs)
Differential Pressure On the Gate ≤ 1 bar
  At Opening ≤ 20 mbar (DN 400 – 500)
≤ 10 mbar (DN 630 – 2000)
Cycles until first Service   20 000 (DN 400 – 630)
10 000 (DN 800 – 2000)
Temperature Valve Body ≤ 150 °C
  Actuator ≤ 80 °C
  Solenoid Valve ≤ 50 °C
  Position Indicator ≤ 80 °C
Heating and Cooling Rate   ≤ 30 °C h-1 (DN 400 – 630)
≤ 5 °C h-1 (DN 800 – 1250)
Material Valve Body AISI 304 (1.4301)
  Mechanism EN AW-6082 (3.2315), AISI 304 (1.4301)
  Bellows AISI 316L (1.4435) or AISI 304L (1.4306)
Seal Bonnet Metal
  Gate FKM (Viton®)
Mounting Position   any (DN 400 – 800)
to be specified with request for offer (< 800)
Solenoid Valve   24 VDC, 2 W (others on request)
Position Indicator: Contact Rating Voltage ≤ 250 VAC ≤ 50 VDC
  Current ≤ 2 A ≤ 1.2 A
Valve Position Indication   Visual (Mechanical)

 

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