Glass Permeation Model (GP, GPH)

 
 
  • Glass Permeation Model (GP, GPH)

The GP model helium calibrated leak standard was developed to be compatible with Ultra-High vacuum systems. This model is the calibrated helium leak of choice for 10-9 and 10-10 atm-cc/s leak rates and critical applications where out gassing and background signals need to be kept to a minimum. . This model is available in leak rates ranging from 10-10 to 10-5 atm-cc/s (Other rates available upon request). 

Both of these models are available with various sizes of DOT rated gas reservoirs, the reservoir size is usually dictated by the leak rate to insure an acceptable yearly depletion rate.

Features:

  • Reliable glass type leak element, industry standard for 30 years
  • All welded stainless steel construction
  • All metal vacuum fittings, VCR or Con-flat (Del-Seal), others available
  • Can be baked to 150°C, 250°C with optional all metal fill valve
  • All metal welded bellows shut off valve
  • Temperature coefficient of 3 to 4%/°C depending on the leak rate.

GP  models shut off valve has a FEP valve packing that seals on the valve stem while the GPH model uses an all metal welded bellows valve.

Note: Prices starting at $450

QUOTE REQUEST

CAN THE CUSTOMER REFILL A LEAK STANDARD FROM A GAS SOURCE REGULATED TO LESS THAN 600PSIG. (AFFORDS POSSIBILITY OF A VARIABLE RATE MODE OR OPEN STYLE):
  • Yes
  • No
VOLUMETRIC FLOW UNITS:
GAS INLET FITTING. (NOT REQUIRED FOR LEAK STANDARD MODELS WITH GAS RESERVOIRS.):
GAS INLET FITTING (IF OTHER, PLEASE SPECIFY):
 
GAS OUTLET FITTING (NOT REQUIRED FOR "SNIFFER" TYPE APPLICATIONS. SPECIFY LEAK DETECTOR MANUFACTURER AND MODEL NUMBER UNDER OTHER.):
GAS OUTLET FITTING (IF OTHER, PLEASE SPECIFY):
 
GAS TYPE:
GAS TYPE (IF OTHER, PLEASE SPECIFY):
 
LEAK RATE:
LEAK RATE:
 
TEST PRESSURE & UNITS :
TEST PRESSURE & UNITS (IF APPLICABLE):
 
WHICH OF THE FOLLOWING BEST DESCRIBES YOUR INTENDED APPLICATION?:
WHICH OF THE FOLLOWING BEST DESCRIBES YOUR INTENDED APPLICATION? (IF OTHER, PLEASE SPECIFY) :
 
QUANTITY:
Ordered
in Lots of: 1