For the Most Challenging Sub-Fab Processes

Very High proportions of by-products in the gas flow can lead to valve malfunctions as well as unplanned maintenance work due to the formation of deposits. The 09.1 HV gate valve with protection ring prevents this. Thanks to its special wedge design with self-cleaning function and to a protection ring, it closes and opens reliably even if there are heavy deposits on the valve seat. Due to the wedge-shaped design of the gate, deposits are specifically pushed off the valve seat or the gate seal to always guarantee a reliable sealing. The protection ring in addition prevents any accumulation of deposits in the plate housing by fully covering the housing in open position of the valve.

The 09.1 HV gate valve is fully functional at up to 1 bar differential pressure.

Already installed in demanding applications under various process conditions, the 09.1 HV gate valve with protection ring has proven its outstanding reliability in sub-fab applications. It can be easily integrated into any application.


The 09.1 HV gate valve with protection ring is available in pneumatic versions. The standard voltage of the control valve is 24 VDC. The standard seal material is FKM, but other materials are available upon request. In addition, the integration of a soft-pump function is possible
as well as the addition of additional access points for e.g. measuring instruments.

Key features of the 09.1 Gate Valve with Protection Ring (PRGV)


  • Self-cleaning function due to wedge design
  • Prevention of deposit accumulation due to protection ring
  • Valve opening possible at differential pressure of up to 1 bar


  • Excellent reliability under harshest conditions
  • Extended maintenance cycle
  • Low operating costs
Technical data
Sizes   DN 100 (4")
Actuator Pneumatic Double acting
Body Material   Stainless Steel
Feedthrough   Bellows
Standard Flanges   ISO-F
Leak Rate Valve Body < 1 × 10-9 mbar ls-1
  Valve Seat < 1 × 10-7 mbar ls-1
Pressure Range   1 × 10-8 mbar to 1.2 bar (abs)
Differential Pressure At Gate ≤ 1.2 bar
  At Opening ≤ 1 bar
Cycles until first Service   1000
Temperature Valve Body ≤ 150 °C
  Actuator ≤ 100 °C
  Solenoid Valve ≤ 50 °C
  Position Indicator ≤ 70 °C
Material Valve Body, Gate AISI 304 (1.4301)
  Bellows AISI 633 (AM350)
Seal Bonnet, Gate FKM (Fluoroelastomer)
Optional: FFKM
Mounting Position   Any
Solenoid Valve   24 VDC, 1 W (others on request)
Position Indicator: Contact Rating Voltage 24 VAC/DC
  Current ≤0.5 A
  Power max. 10 W
Weight   20 kg / 44.1 lbs


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