Logo
Motion in Vacuum

GATE VALVE UHV

A new Gate Valve is developed in VSE VacuumTechnology. It contains significant new ideas which allows a full product range, excellent features and a great cost effectiveness.

The name of this productline:

HV grey
UHV grey

These Gate Valves UHV are available in:

   •  sizes 65, 80, 100, 150, 200, 250, 320, 400 and more
   •  flange standards CF, ISO, ASA, JIS
   •  handoperated with lever, handoperated with handwheel, pneumatic actuation and motor driven
   •  in Compact-Design or in elongated version with the actuator backwards:

Gate-1 In-Axis
Compact-Design                                                                      In-Axis

 

HIGHLIGHTS

This new Gate Valve ensures excellent features:

Vibration
  Smooth, vibration-free operation for the entire open/close cycle.
Spring
  No springs in the mechanism, track-guided throughout the whole stroke.
Particles
  Very low particle generation and insensitive against dust and dirt from outside the valve.
Locked
  Locked in open and in closed position.
mbar
  Insensitive in pressure difference: Nothing can hang-out, no damage if it opens against differential pressure.
Watch
  Long service intervals: 200,000 cycles in HV; 50,000 cycles in UHV version.
Flanges
  All sizes: 63, 80, 100, 150, 200, 250, 320, 400. All flange standards, all actuators: handlever, handwheel, pneumatic, steppermotor.

The mechanism. The valve and its mechanism is designed entirely in stainless steel and is based on a guided motion without the use of springs. The operating principle allows to operate the valve against any differential pressure from either side without damage. It depends on the level of differential pressure and its direction, that the valve might not be able to open, but it will stay without any damage.

The housing is welded and it is designed to provide easy access to the inner mechanism for maintenance purposes. The mechanism can be completely removed from the housing.

Seals. The valve plate is tightened by a Viton O-ring, available off-the-shelf.

Seals UHV. The UHV valve uses a metal bellows as feedthrough for the actuator. The gasket for the bonnet flange on the housing is a reusable metal seal made from stainless steel, silver plated. The Gate Valve UHV is equipped just with one single O-ring in Vitonon the valve plate, all other gaskets against vacuum are made from metal.

Flanges. This GATE Valve is available with all common flange standards like CF, ISO, ASA, JIS. Additional any customized flange system is possible. Additional ports for pumping, venting or gauging are available.

Actuators. This GATE Valve is available in both versions HV and UHV in the following actuations:

Scope of delivery. We ship the valve, packed, inside covered by transport flanges. Plug and counter plug where applicable. Cables where applicable

 

 

HOW IT WORKS

This is the inner mechanics:
GATE 5

A swivel arm turns for 180° and moves the mechanism from open to closed position. Two rollers perform the move of the valve plate in the Z-axis. All this run without any sliding friction, rolling only. The moving partners for this Z-axis are thin sheet in stainless steel with open distance to each other which makes this mechanism very insensitive against any dust and dirt coming from the customer's installation.

Most of the parts are made in lasercutted stainless steel. This allows to equip the valve with a great principle of actuation, but keep the prices inexpensive.

The mechanism is track-guided over the whole stroke from full open to full closed. This principle is patented in the most important industrial countries. Before we have started the new GATE Valve we have produced and tested this principle in many different sizes and tested for 200,000 cycles (UHV version).

 

TECHNICAL DATA

GATE UHV  
  Pressure range:   1 . 10-9 mbar to 1,2 bar
  Leakrate:  
     Housing   < 1 . 10-9 mbar ls-1
     Valve seat   < 1 . 10-9 mbar ls-1
  Service interval   200,000 cycles
  Temperatures:  
     Valve   250°C open, 200°C closed
     Actuator   200°C
     Solenoid valve     80°C
  Materials:  
     Housing   304
     Mechanism   304, 321
     Actuator   304, aluminium
     Gaskets:  
          Valve seat   Viton
          Static gaskets   Metal
          Actuator   Viton
  Mounting orientation   any
  Maximum differencial pressure at opening   1,1 bar from either side
ND 
63
80
100
150
200
250
320
400
  Opening possible against valve plate*)   p (mbar)
1000 
600 
300 
250 
200 
150 
100 
100 
  Opening possible with valve plate   p (mbar)
1000 
1000 
1000 
1000 
1000 
1000 
1000 
1000 
  Conductance under HV   C (l/s)
600 
900 
1700 
5100 
12000 
22000 
33000 
50000 
  Weight handoperated valve   kg
10 
10,5 
26 
32 
47 
74 
110 
  Weight pneumatically operated valve   kg
11 
11,5 
28 
34 
50 
77 
115 
  Closing- and opening time   s
1,5 
2,5 
  Handwheel spindle turns   n
17,5 
17,5 
17,5 
12,5 
18 
26 
26 
34 
  Handlever turns  180°
  Pneumatically operated valve::  
     Compressed air supply   4 - 8 bar overpressure
     Reaction to power failure   Valve closes and remains tight
     Reaction to compressed air failure   Status remains: fully open or fully closed
     Supply voltage of solenoid valve   Standard 24VDC
     Power consumption of solenoid valve   2,5 W
     Contact rating of position indicator switches   2 A (250VAC/24VDC)

     *) Valve opens with this differential pressure. If the differential pressure is higher, the valve don't open but no damage occurs.

   Outline dimensions of the Gate Valve HV:

ND   
63
80
100
150
200
250
320
400
A
70 
70 
70 
80 
80 
100 
120 
150 
B
CF
113.5 
117.5 
152 
202.5 
253.2 
ISO
136 
145 
176 
225 
288 
355 
425 
510 
ASA
136 
176 
225 
288 
335 
425 
597 
JIS
136 
176 
225 
288 
350 
425 
510 
C
CF
8 x M8 
ø 92.1 
10 x M8 
ø 102.4 
16 x M8 
ø 130.3 
20 x M8 
ø 181 
24 x M8 
ø 231.8 
 
ISO
4 x M8 
ø 110 
8 x M8 
ø 125 
8 x M8 
ø 145 
8 x M10 
ø 200 
12 x M10 
ø 260 
12 x M10 
ø 310 
12 x M12 
ø 395 
16 x M12 
ø 480 
ASA
4 x 3/8" 
16UNC 
ø 120.7 
4 x 3/8" 
16UNC 
ø 152.4 
8 x 3/8" 
16UNC 
ø 190.5 
8 x 3/4" 
10UNC 
ø 241.3 
8 x 3/4" 
10UNC 
ø298.5 
12 x 3/4" 
10UNC 
ø362 
16 x 1" 
8UNC 
ø 539.8 
JIS
4 x M10 
ø 120 
8 x M10 
ø160 
8 x M10 
ø 210 
8 x M12 
ø 270 
12 x M12 
ø 320 
12 x M12 
ø 370 
12 x M16 
ø 480 
D
142 
154 
170 
234 
316 
376 
450 
552 
E
71 
77 
85 
117 
158 
188 
225 
276 
F
132 
150 
165 
230 
332 
376 
480 
560 
G
222 
249 
275 
378 
525 
581 
741 
885 
H
230 
230 
250 
300 
388 
390 
528 
528 
J
142 
142 
143 
166 
193 
217 
234 
242 
K
114 
114 
114 
144 
200 
220 
305 
305 
L
84 
84 
85 
98 
119 
133 
146 
154 
HV HV

  Here listed are the main dimensions for your quick
  reference. On demand we give files in .igs and .stp
  for exactly check of all dimensions.

  Please ask for that.

   Modifications reserved.

 

Flag DE Flag AT Flag CH
PRODUCTS:
GATE VALVE UHV

S