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Instrumentation
Division
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Diesel Engine Valves Division Automotive Division
Instrumentation Products - Gauge protectors

10.00

Catalogue page:  PDF 10.00

Gauge protector   PN 400 / PN 600   DN 3
for pressure gauges

Type 1 Type 2
Type /
Connection 3)		 Material Adjusting range in bar
0,4 - 2,5 2 - 6 5 - 25 20 - 60 50 - 250 240 - 400 400 - 600
Part no.
1 G 1/2 brass S005.50.001 S005.50.002 S005.50.003 S005.50.004 S005.50.005 S005.50.006 S005.50.007
st. st. S005.50.201 S005.50.202 S005.50.203 S005.50.204 S005.50.205 S005.50.206 S005.50.207
2 1/2 NPT brass S005.50.021 S005.50.022 S005.50.023 S005.50.024 S005.50.025 - -
st. st. S005.50.221 S005.50.222 S005.50.223 S005.50.224 S005.50.225 S005.50.226 -

DVGW - Registration

(only for type 1 up to 400 bar)
DVGW-Register-No.:   DG-4515AO0762

The part numbers for types with DVGW-registration have to be complete with .00DV
(e. g. adjusting range 240 - 400 bar S005.50.206   S005.50.206.00DV).
Material Max.
overpressure		 Low pressur
range
brass 600 bar max. load up to -1 bar,
not adjustable
stainless steel  1000 bar
Components brass  Stainless steel 1)
DIN - Material Number
Body 2) brass 1.4571
Piston 1.4571
Adjusting nut steel 4) 1.4571
Packing FPM 5) 
Screw plug brass A4
  • Body: brass: pressed part
                   steinless steel: die-pressed part
  • Application:
    Gauge protectors close at a set point protecting gauges from overrange pressures.
  • Function:
    By reaching the adjusted pressure, the valve closes automatically   and blocks the   flow to the   pressure instrument. After decrease of pressure by about 25 % below the closing pressure, the   valve opens again.
  • max. temperature:
    80°C (60°C for type S005.50.001.00DV / 201.00DV)
  1. Available with inspection certificate 3.1 acc. to EN 10 204
  2. Can also be supplied for oxygen application, free of oil and lubricant (Please notice order instruction B3 !)
  3. Other connection types on request
  4. DVGW-type made of brass
  5. DVGW-type diaphragm made of NBR
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