b90000195 - BGV manual gate valve NW50

BGV manual gate valve NW50

B90000195

Overview

The BGV basement gate valves are a range of stainless steel, bellows-sealed basement isolation valves. They have been designed, in conjunction with VAT, to enable pumps to be kept running during foreline maintenance in order to maximise the reliability and up-time of pumps operating on harsh processes. The BGV valves are designed for an operating pressure range of 1 x 10-9 mbar to 1.2 bar absolute (1 x 10-7 to 1.2 x 105 Pa). The valves withstand 1.2 bar absolute in either direction and can tolerate against a 1 bar differential pressure across the valve seal. 
Although principally designed for isolation of pumps in a semiconductor fab basement, the BGV valves are ideal for other applications where a 1 bar differential at opening is desirable and 20000 cycles is acceptable.

Features and Benefits

  • Jointly developed with VAT, a world leader in sealing technology.
  • Stainless steel construction and robust patented design for a long service life
  • Simple grease-free mechanism minimizes damage due to particulates in dusty processes
  • Can be operated with 1 bar pressure differential so pressure equalization is not required
  • Easy servicing with only inexpensive consumables for low cost of ownership
  • Smooth surfaces for easy cleaning
  • Available with solenoid fitted and wired for easy ordering and installation
  • Plug and play compatible with Edwards semiconductor dry pump when used with optional BGV TIM interface cable.

Technical Data

Leak rate
  Body < 1 x 10-9 mbar ls-1
  Valve seat < 1 x 10-7 mbar ls-1
Pressure range 1 x 10-9 mbar to 1.2 bara
Differential pressure on the gate 1.2 bar in either direction
Differential pressure at opening 1 bar
Cycles until first service 5, 000
Maximum operating temps
  Valve body 120 °C
  Manual actuator 80 °C
  Pneumatic actuator 80 °C
  Position indicator 60 °C
  Solenoid 50 °C
Molecular flow conductance
  NW50 300 ls-1
  ISO63 400 ls-1
  ISO80 1100 ls-1
  ISO100 1700 ls-1
  ISO160 4600 ls-1
Weight
  NW50 3.3 kg (7.3 lbs)
  ISO63 6.6 kg (14.6 lbs)
  ISO80 7.0 kg (15.4 lbs)
  ISO100 8.5 kg (18.7 lbs)
  ISO160 17.7 kg (39.0 lbs)
Materials of construction:
  Body AISI 304 stainless steel
  Bonnet Black anodized aluminium
  Gate AISI 304 stainless steel
  Gliders PEEK
  Bellows AISI 633 stainless steel
  Seals Fluoroelastomer
  Gate fixation screw A2 stainless steel Ni-teflon coated
  Handle Reinforced polyamide
Manual Valves
Turns of the handle to open/close
NW50 22
ISO63 27
ISO80 33
ISO100 39
ISO160 41

Dimensions



NW50 ISO63 ISO80 ISO100 ISO160
A mm/inch 60/2.36 70/2.75 70/2.75 70/2.75 90/3.54
B mm/inch 36/1.41 43/1.69 43/1.69 43/1.69 64/2.52
C mm/inch 63/2.48 69/2.71 69/2.71 69/2.71 87/3.42
D mm/inch 62/2.44 62/2.44 62/2.44 62/2.44 62/2.44
E mm/inch 60/2.36 68/2.67 68/2.67 68/2.67 87/3.42
F mm/inch 120/4.72 160/6.3 200/7.87 200/7.87 260/10.23
G mm/inch 62.5/2.46 71/2.79 71/2.79 71/2.79 91/3.58
H mm/inch 70.5/2.77 75/2.95 75/2.95 75/2.95 85/3.34
I mm/inch 119/4.68 138/5.43 155/6.09 174.5/6.86 241/9.47
J mm/inch 110/4.32 123/4.83 142/5.58 160/6.29 210/8.25
K mm/inch 268/10.53 314/12.34 364/14.31 413.5/16.25 578/22.72
L mm/inch 149/5.86 176/6.92 209/8.21 239/9.39 337/13.24
M mm/inch 45/1.77 53.5/2.1 72/2.83 72/2.83 97/3.81
N mm/inch 90/3.54 105/4.13 124/4.87 142/5.58 192/7.55
b90000670 - Spare gate ISO100

Spare gate ISO100

B90000670
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b90000660 - Spare gate ISO63

Spare gate ISO63

B90000660
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b90000790 - Spare solenoid 24V a.c./d.c.

Spare solenoid 24V a.c./d.c.

B90000790
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b90000665 - Spare gate ISO80

Spare gate ISO80

B90000665
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b90003388 - BGV mk2 TIM interface cable

BGV mk2 TIM interface cable

B90003388
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b90000680 - Spare gate ISO160

Spare gate ISO160

B90000680
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